Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2523. Отображено 100.
06-01-2022 дата публикации

AMMOXIDATION CATALYST FOR PROPYLENE, MANUFACTURING METHOD OF THE SAME CATALYST, AMMOXIDATION METHOD USING THE SAME CATALYST

Номер: US20220001361A1
Автор: CHOI Jun Seon, Kang Kyungyeon, KIM Ji Yeon
Принадлежит:

There are provided an ammoxidation catalyst for propylene, a manufacturing method of the same, and an ammoxidation method of propylene using the same. Specifically, according to one embodiment of the invention, there is provided an ammoxidation catalyst for propylene that not only exhibits high activity to ammoxidation of propylene, but also has high amorphous phase content. 1. An ammoxidation catalyst for propylene comprising metal oxide represented by the following Chemical Formula 1 ,wherein a first peak having intensity of A appears in the 2θrange of 26.3±0.5°, and a second peak having intensity of B appears in the 2θrange of 28.3±0.5° in X ray diffraction analysis by CuKα, and {'br': None, 'sub': x', 'a', 'b', 'c', 'd', 'e', 'f', 'y, 'MoBiFeABCDO\u2003\u2003[Chemical Formula 1]'}, 'a intensity ratio(AB) of the first peak to the second peak is 1.5 or morein the Chemical Formula 1,A and B are different from each other, and each independently, are one or more elements of Ni, Mn, Co, Zn, Mg, Ca, and Ba,C is one or more elements of Li, Na, K, Rb, and Cs,D is one or more elements of Cr, W, B, Al, Ca, and V,a to f, x, and y are respectively mole fractions of each atom or atomic group,a is 0.1 to 7, b is 0.1 to 7, provided that the sum of a and b is 0.1 to 7,c is 0.1 to 10, d is 0.01 to 5, e is 0.1 to 10, f is 0 to 10,x is 11 to 14, y is a value determined by each oxidation number of Mo, Bi, Fe, A, B, C, and D.2. The ammoxidation catalyst for propylene according to claim 1 , wherein the intensity ratio(AB) is 3.0 or more.3. The ammoxidation catalyst for propylene according to claim 1 , wherein the catalyst has BET specific surface area of 50 to 300 m/g.4. The ammoxidation catalyst for propylene according to claim 1 , wherein a pore volume in the catalyst is 0.3 to 1.3 cm/g.5. The ammoxidation catalyst for propylene according to claim 1 , wherein the metal oxide is represented by Chemical Formula 1-1:{'br': None, 'sub': x', 'a', 'b', 'c', 'd', 'e', 'y, 'MoBiFeNiCoKO\ ...

Подробнее
Номер записи: 1
07-01-2016 дата публикации

CATALYST FOR LOW TEMPERATURE SLURRY BED FISCHER-TROPSCH SYNTHESIS

Номер: US20160001267A1
Автор: Azzam Khalid, Duvenhage Dawid J., Huang Ray J., Hunegnaw Sara, Ionkina Olga, Kharas Karl C., Schmidt Christine, Still Mark, WRIGHT Harold A.
Принадлежит:

A method for controllably producing a hematite-containing Fischer-Tropsch catalyst by combining an iron nitrate solution with a precipitating agent solution at a precipitating temperature and over a precipitation time to form a precipitate comprising iron phases; holding the precipitate from at a hold temperature for a hold time to provide a hematite containing precipitate; and washing the hematite containing precipitate via contact with a wash solution and filtering, to provide a washed hematite containing catalyst. The method may further comprise promoting the washed hematite containing catalyst with a chemical promoter; spray drying the promoted hematite containing catalyst; and calcining the spray dried hematite containing catalyst to provide a calcined hematite-containing Fischer-Tropsch catalyst. 1. A method for controllably producing a hematite-containing Fischer-Tropsch catalyst , the method comprising:(a) combining an iron nitrate solution with a precipitating agent solution at a precipitating temperature and over a precipitation time to form a precipitate comprising iron phases, wherein the precipitating temperature is less than or equal to about 95° C.; wherein the iron nitrate, the precipitating agent solution, or both, comprise a refractory material;(b) holding the precipitate from (a) at a hold temperature for a hold time to provide a hematite containing precipitate; and(c) washing the hematite containing precipitate from (b) via contact with a wash solution and filtering, to provide a washed hematite containing Fischer-Tropsch catalyst.2. The method of further comprising adding a hematite promoter to control the amount of hematite in the hematite-containing Fischer-Tropsch catalyst.3. The method of wherein the hematite-containing Fischer-Tropsch catalyst comprises from about 0.5 to about 80 weight percent hematite.4. The method of wherein the hematite promoter is selected from the group consisting of basic silica claim 2 , acidic silica claim 2 , ...

Подробнее
Номер записи: 2
05-01-2017 дата публикации

INORGANIC COMPOSITE OXIDES AND METHODS OF MAKING THE SAME

Номер: US20170001173A1
Автор: FRANCIS Francis, OCAMPO Fabien, SOUTHWARD Barry W. L., Zhao Qiang
Принадлежит: Rhodia Operations

Described herein are methods for forming inorganic composite oxides. Such methods include combining, at a substantially constant pH of between about 5 and about 6.75 over a period of at least about 5 minutes, an acidic precursor composition and a basic composition to form a precipitate composition, wherein the acidic precursor composition comprises an alumina precursor, a ceria precursor, a zirconia precursor and optionally one or more dopant precursors; stabilizing the precipitate by increasing the pH of the precipitate composition to between about 8 and about 10; and calcining the stabilized precipitate to form an inorganic composite oxide. Also described are inorganic composite oxides formed using such methods. 1. A method for forming an inorganic composite oxide , the method comprising:combining, at a substantially constant pH of between about 5 and about 6.75 over a period of at least about 5 minutes, an acidic precursor composition and a basic composition to form a precipitate composition, wherein the acidic precursor composition comprises an alumina precursor, a ceria precursor, a zirconia precursor and optionally one or more dopant precursors;stabilizing the precipitate by increasing the pH of the precipitate composition to between about 8 and about 10; andcalcining the stabilized precipitate to form an inorganic composite oxide.2. The method according to claim 1 , wherein the substantially constant pH is maintained by (a) controlling a flow rate of the acidic precursor composition claim 1 , the basic composition or both or (b) controlling a concentration of the acidic precursor composition claim 1 , the basic composition or both or (c) controlling a flow rate and a concentration of the acidic precursor composition claim 1 , the basic composition or both.34-. (canceled)5. The method according to claim 1 , wherein the acidic precursor composition and the basic composition are combined at a substantially constant pH of between about 5.5 and about 6.5 over a ...

Подробнее
Номер записи: 3
05-01-2017 дата публикации

Method For Producing Hydrocarbon Dehydrogenation Catalyst Using Sponge-Type Support

Номер: US20170001174A1
Автор: Han Hyun-Sik, KIM Ho-dong, Yoo Young-san
Принадлежит:

Disclosed are a catalyst for dehydrogenating a paraffinic hydrocarbon and a method of preparing the same, wherein the catalyst is configured such that a sponge-type alumina support having 3D meso/macro pores is directly impregnated with an active metal, thus decreasing the diffusion resistance of a material, realizing structural stability, and maximizing the distribution of the active metal in the support, thereby significantly increasing olefin conversion and selectivity. 1. A method of preparing a catalyst for dehydrogenating paraffin , comprising:providing a sponge-type alumina support having meso/macro pore sizes;thermally treating the support at 800 to 1200° C. for 2 to 10 hr in an air atmosphere;dispersing an active metal precursor in the support so as to be loaded into the support;drying the support having the loaded active metal at 80 to 150° C.; andfiring the dried catalyst at 500 to 900° C. for 2 to 10 hr in an air atmosphere.2. The method of claim 1 , further comprising reducing the fired catalyst at 400 to 700° C. in a hydrogen atmosphere claim 1 , after the firing the dried catalyst.3. The method of claim 1 , wherein the active metal comprises platinum claim 1 , tin claim 1 , or an alkali metal or alkaline earth metal.4. The method of claim 1 , wherein the sponge-type alumina support comprises two kinds of pores having a meso pore size and a macro pore size.5. The method of claim 1 , wherein the sponge-type alumina support is selected from the group consisting of alpha alumina claim 1 , theta alumina claim 1 , silicon carbide claim 1 , and mixtures thereof.6. The method of claim 1 , wherein the sponge-type alumina support has a specific surface area of 50 to 100 m/g claim 1 , a total pore volume of 0.1 to 0.7 cm/g claim 1 , and a pore size of 10 to 100 nm.7. A catalyst for dehydrogenating paraffin claim 1 , prepared by the method of any one of to .8. A method of producing an olefin claim 7 , comprising dehydrogenating a gas mixture comprising paraffin ...

Подробнее
Номер записи: 4
05-01-2017 дата публикации

METHODS, SYSTEMS AND CATALYSTS FOR OXIDIZING CARBON MONOXIDE TO CARBON DIOXIDE

Номер: US20170001175A1
Автор: LI Gengnan, Li Liang
Принадлежит: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Methods and catalyst compositions for oxidizing CO to COat low temperatures arc disclosed. In embodiment, a method of oxidizing CO to COmay involve heating a gaseous mixture comprising at least CO and Owith a catalyst mixture comprising Pd disposed on a MnOmesoporous support at a temperature of about 0° C. to about 60° C., and wherein the CO to COconversion rate is about 40% to about 100%. 1. A method of oxidizing CO to CO , the method comprising:{'sub': 2', '3', '4', '2, 'heating a gaseous mixture and a catalyst mixture, wherein the gaseous mixture comprises CO and O, and wherein the catalyst mixture comprises at least Pd and MnOat a temperature of about 0° C. to about 60° C.; wherein the heating yields CO to COconversion rate of about 40% to about 100%.'}2. The method of claim 1 , wherein heating comprises heating with a catalyst mixture comprising at least one Pd nanoparticle disposed on at least a portion of a MnOsupport.3. The method of claim 1 , wherein heating comprises heating to a temperature of about 20° C. to about 30° C. claim 1 , and a conversion rate of the CO to COis about 80% to about 100%.4. (canceled)5. The method of claim 1 , wherein heating comprises heating to a temperature of about 0° C. to about 10° C. claim 1 , and a conversion rate of the CO to COis about 40% to about 50%.6. The method of claim 1 , wherein heating comprises heating a gaseous mixture that further comprises N claim 1 , He claim 1 , H claim 1 , Ar claim 1 , or any combination thereof.7. The method of claim 1 , wherein the method comprises a batch process or a continuous flow process.8. The method of claim 7 , wherein heating comprises heating in a continuous flow process where the gaseous mixture is in contact with the catalytic mixture at a flow rate of about 40 mL per minute to about 60 mL per minute.9. The method of claim 1 , wherein heating comprises heating with a catalyst mixture that includes about 1 weight percent to about 5 weight percent of Pd.10. The method of claim ...

Подробнее
Номер записи: 5
02-01-2020 дата публикации

TABLETED CATALYST FOR METHANOL SYNTHESIS HAVING INCREASED MECHANICAL STABILITY

Номер: US20200001278A1
Автор: Werner Sebastian
Принадлежит:

The invention relates to an improved catalyst based on a tableted molded catalyst body, containing a metal-containing mixture, containing copper, zinc, and aluminum, with calcium aluminate as a binder material with a weight fraction of calcium aluminate in the range of 1.0% to 30.0%, for synthesizing methanol from synthesis gas. The invention further relates to the production of the catalyst and to the use of the catalyst in the synthesis of methanol from synthesis gas. 1. A shaped catalyst body containing copper , zinc and aluminum , characterized in that the shaped catalyst body is present in tablet form and contains calcium aluminate as binder material with a proportion by weight of calcium aluminate in the range from 1.0% to 30.0% , based on the shaped catalyst body.2. The shaped catalyst body as claimed in claim 1 , wherein the proportion by weight is in the range from 5.0% to 20.0%.3. The shaped catalyst body as claimed in claim 1 , wherein the fracture strength is from 2 to 10%.4. The shaped catalyst body as claimed in claim 1 , wherein the lateral compressive strength after reduction and dry stabilization is from 40 to 200 N claim 1 , preferably from 40 to 100 N claim 1 , more preferably from 50 to 100 N.5. The shaped catalyst body as claimed in claim 1 , wherein the BET surface area is in the range from 70 to 150 m/ claim 1 , preferably from 75 to 140 m/g and particularly preferably from 80 to 120 m/g.6. The shaped catalyst body as claimed in claim 1 , wherein the pore volume claim 1 , measured by means of mercury porosimetry claim 1 , is between 150 mm/g and 400 mm/g claim 1 , preferably between 250 mm/g and 350 mm/g claim 1 , particularly preferably between 300 mm/g and 350 mm/g.7. The shaped catalyst body as claimed in claim 1 , wherein the copper surface area after reduction is between 20 m/g and 50 m/g claim 1 , preferably between 20 m/g and 40 m/g claim 1 , particularly preferably between 25 m/g and 36 m/g.8. The shaped catalyst body as claimed in ...

Подробнее
Номер записи: 6
04-01-2018 дата публикации

COMPLEX OXIDE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFYING CATALYST

Номер: US20180001303A1
Автор: Ohtake Naotaka, Yokota Kazuhiko
Принадлежит: SOLVAY SPECIAL CHEM JAPAN, LTD.

Disclosed are a composite oxide which is capable of maintaining a large volume of pores even used in a high temperature environment, and which has excellent heat resistance and catalytic activity, as well as a method for producing the composite oxide and a catalyst for exhaust gas purification employing the composite oxide. The composite oxide contains cerium and at least one element selected from aluminum, silicon, or rare earth metals other than cerium and including yttrium, at a mass ratio of 85:15 to 99:1 in terms oxides, and has a property of exhibiting a not less than 0.30 cm/g, preferably not less than 0.40 cm/g volume of pores with a diameter of not larger than 200 nm, after calcination at 900° C. for 5 hours, and is suitable for a co-catalyst in a catalyst for vehicle exhaust gas purification. 1. A composite oxide comprising (A) cerium and (B) at least one element selected from the group consisting of aluminum , silicon , and rare earth metals other than cerium ,wherein a mass ratio of (A):(B) in the composite oxide is 85:15 to 99:1 in terms oxides, and{'sup': '3', 'wherein the composite oxide has a property of exhibiting a not less than 0.30 cm/g volume of pores with a diameter of not larger than 200 nm, after calcination at 900° C. for 5 hours.'}2. The composite oxide according to claim 1 , having a property of exhibiting a not less than 0.40 cm/g volume of pores with a diameter of not larger than 200 nm claim 1 , after calcination at 900° C. for 5 hours.3. The composite oxide according to claim 1 , having a property of exhibiting a not less than 0.50 cm/g volume of pores with a diameter of not larger than 200 nm claim 1 , after calcination at 900° C. for 5 hours.4. The composite oxide according to claim 1 , having a property of exhibiting a not less than 0.32 cm/g volume of pores with a diameter of not larger than 200 nm claim 1 , after calcination at 800° C. for 5 hours.5. The composite oxide according to claim 1 , comprising at least silicon as (B) ...

Подробнее
Номер записи: 7
04-01-2018 дата публикации

STEAM REFORMING CATALYST AND METHOD OF MAKING THEREOF

Номер: US20180001309A1
Автор: Daugaard Christian, Jacobsen Joachim Harteg, Ovesen Charlotte Vinding
Принадлежит:

The invention provides a method for the production of a supported nickel catalyst, in which an aqueous mixture comprising an alkali metal salt plus other metal salts is sintered to form a support material. A supported nickel catalyst comprising potassium β-alumina is also provided. 1. A supported nickel catalyst precursor obtained via a method comprising the steps of: i. magnesium mineral or magnesium salt,', 'ii. optionally, a calcium mineral or calcium salt,', 'iii. an aluminium mineral or aluminium salt,', 'iv. an alkali metal salt comprising at least one of Na and K, and', 'v. optionally water;, 'a. providing a mixture comprisingb. extruding said mixture to form an extrudate, said extrudate containing integrated reservoirs of said alkali metal salt, and calcining the extrudate at a temperature from 300-600° C.;c. sintering said calcined extrudate at a temperature in a range of 1100-1400° C. to form a support material;d. impregnating said support material with an aqueous solution comprising a nickel salt to provide the supported nickel catalyst precursor; ande. optionally repeating step d.2. A supported nickel catalyst obtainable via the method recited in claim 1 , wherein claim 1 , after each impregnation step d claim 1 , the supported nickel catalyst precursor is decomposed to form a supported nickel catalyst claim 1 , suitably at temperatures between 350-500° C.3. A supported nickel catalyst comprising nickel supported on a support material claim 1 , characterised in that said support material comprises potassium β-alumina or sodium β-alumina claim 1 , or mixtures thereof.4. The supported nickel catalyst according to claim 3 , wherein said support material comprises 8 wt % or more potassium β-alumina claim 3 , as measured by XRD.5. The supported nickel catalyst according to claim 3 , comprising 0.2-2 wt % potassium.6. Use of a supported nickel catalyst according to as a catalyst in a steam reforming process.7. A steam reforming process comprising the steps of: ...

Подробнее
Номер записи: 8
03-01-2019 дата публикации

ZEOLITIC 3D SCAFFOLDS WITH TAILORED SURFACE TOPOGRAPHY FOR METHANOL CONVERSION WITH LIGHT OLEFINS SELECTIVITY

Номер: US20190001311A1
Автор: Li Xin, Rezaei Fateme, Rownaghi Ali A.
Принадлежит: The Curators of the University of Missouri

The present disclosure relates to 3D printed zeolite scaffolds. The zeolite scaffolds can be used as a catalyst for methanol to olefin (MTO) conversion and hydrocarbon cracking processes. 1. A zeolite coated monolith article comprising an uncoated monolithic support structure including walls having a honeycomb structure comprising ammonia-ZSM-5 powder (SiO/AlO) and bentonite clay; and a porous coating disposed directly upon the uncoated monolithic support structure.2. The zeolite coated monolith article of claim 1 , further comprises an additional component selected from the group consisting of amorphous silica claim 1 , a plasticizing binder claim 1 , a metal dopant claim 1 , and combinations thereof disposed within the uncoated monolithic support structure.3. The zeolite coated monolith article of claim 2 , wherein the metal dopant is selected from the group consisting of Zn claim 2 , Ce claim 2 , Cr claim 2 , Mg claim 2 , Cu claim 2 , La claim 2 , Ga claim 2 , Y claim 2 , and combinations thereof.4. The zeolite coated monolith article of claim 1 , wherein the porous coating comprises SAPO-34.5. The zeolite coated monolith article of claim 1 , wherein the zeolite coated monolith has a wall thickness of about 0.2 mm to about 0.9 mm.6. The zeolite coated monolith article of claim 1 , wherein the zeolite coated monolith has a square channel length of about 0.2 mm to about 1.6 mm.7. The zeolite coated monolith article of claim 1 , wherein the zeolite coated monolith has a total pore volume of about 0.2 cm/g to about 0.95 cm/g.8. The zeolite coated monolith article of claim 1 , wherein the zeolite coated monolith has a mesoporosity of about 0.1 cm/g to about 0.95 cm/g.9. A process for converting methanol to one or more light olefins (MTO) claim 1 , the process comprising contacting methanol claim 1 , under deoxygenation conditions claim 1 , with a catalyst comprising a zeolite monolith claim 1 ,{'sub': 2', '2', '3, 'wherein the zeolite monolith comprises an uncoated ...

Подробнее
Номер записи: 9
03-01-2019 дата публикации

MOLECULAR SIEVE SSZ-95, METHOD OF MAKING, AND USE

Номер: US20190001312A1
Автор: Lei Guan-Dao, Ojo Adeola Florence, Zhang Yihua, Zones Stacey Ian
Принадлежит: Chevron U.S.A. INC.

A new crystalline molecular sieve designated SSZ-95 is disclosed. In general, SSZ-95 is synthesized from a reaction mixture suitable for synthesizing MTT-type molecular sieves and maintaining the mixture under crystallization conditions sufficient to form product. The product molecular sieve is subjected to a pre-calcination step, and ion-exchange to remove extra-framework cations, and a post-calcination step. The molecular sieve has a MTT-type framework and a H-D exchangeable acid site density of 0 to 50% relative to molecular sieve SSZ-32. 1. A molecular sieve having a MTT-type framework , a mole ratio of 20 to 70 of silicon oxide to aluminum oxide , a total micropore volume of between 0.005 and 0.02 cc/g; and a H-D exchangeable acid site density of up to 50% relative to SSZ-32.2. The molecular sieve of claim 1 , wherein the molecular sieve has a mole ratio of 20 to 50 of silicon oxide to aluminum oxide.3. The molecular sieve of claim 1 , wherein the molecular sieve has a total micropore volume of between 0.008 and 0.018 cc/g.4. The molecular sieve of claim 1 , wherein the molecular sieve has an external surface area of between 200 and 250 m/g; and a BET surface area of between 240 and 280 m/g.5. The molecular sieve of claim 1 , wherein the molecular sieve has a H-D exchangeable acid site density of 0.5 to 30% relative to molecular sieve SSZ-32.6. The molecular sieve of claim 5 , wherein the molecular sieve has a total micropore volume of between 0.008 and 0.018 cc/g.7. The molecular sieve of claim 5 , wherein the molecular sieve has an external surface area of between 200 and 250 m/g; and a BET surface area of between 240 and 280 m/g.8. The molecular sieve of claim 1 , wherein the molecular sieve has a H-D exchangeable acid site density of 2 to 25% relative to molecular sieve SSZ-32.9. The molecular sieve of claim 8 , wherein the molecular sieve has a total micropore volume of between 0.008 and 0.018 cc/g.10. The molecular sieve of claim 8 , wherein the molecular ...

Подробнее
Номер записи: 10
03-01-2019 дата публикации

Synthesis of fibrous nano-silica spheres with controlled particle size, fibre density, and various textural properties

Номер: US20190002297A1
Автор: Ayan Maity, Baljeet Singh, Nisha BAYAL, Rustam SINGH, Vivek Polshettiwar
Принадлежит: TATA INSTITUTE OF FUNDAMENTAL RESEARCH

The present disclosure provides a method for synthesizing fibrous silica nanospheres, the method can include, in sequence, the steps of: a) providing a reaction mixture comprising a silica precursor, a hydrolyzing agent, a template molecule, a cosurfactant and one or more solvents; b) maintaining the reaction mixture under stirring for a length of time; c) heating the reaction mixture to a temperature for a length of time; d) cooling the reaction mixture to obtain a solid, and (e) calcinating the solid to pro duce fibrous silica nanospheres, wherein desirable product characteristics such as particle size, fiber density, surface area, pore volume and pore size can be obtained by controlling one or more parameters of the method. The present disclosure further provides a method for synthesizing fibrous silica nanospheres using conventional heating such as refluxing the reactants in an open reactor, thereby eliminating the need for microwave heating in a closed reactor or the need for any pressure reactors.

Подробнее
Номер записи: 11
04-01-2018 дата публикации

PROCESSING OF HEAVY HYDROCARBON FEEDS

Номер: US20180002617A1
Автор: Bai Chuansheng, Brown Stephen H., Cheng Jane C., Dankworth David C., Degnan, Dougherty Richard C., Falkiner Robert J., Gupta Himanshu, Harandi Mohsen N., Henao Juan D., HUGHART Cindy J., JR. Thomas F., Levine Steven W., Marut Todd P., NELSON John D., Soled Stuart L., Umansky Benjamin S., ZHANG LEI
Принадлежит:

Systems and methods are provided for hydroconversion of a heavy oil feed under slurry hydroprocessing conditions and/or solvent assisted hydroprocessing conditions. The systems and methods for slurry hydroconversion can include the use of a configuration that can allow for improved separation of catalyst particles from the slurry hydroprocessing effluent. In addition to allowing for improved catalyst recycle, an amount of fines in the slurry hydroconversion effluent can be reduced or minimized. This can facilitate further processing or handling of any “pitch” generated during the slurry hydroconversion. The systems and methods for solvent assisted hydroprocessing can include processing of a heavy oil feed in conjunction with a high solvency dispersive power crude. 1. A process for producing a hydroprocessed product , comprising:exposing a feedstock to a catalyst under effective slurry hydroconversion conditions to form a slurry hydroprocessing effluent, the effective slurry hydroconversion conditions being effective for conversion of at least about 90 wt % of the feedstock relative to a conversion temperature, the catalyst comprising catalyst particles having a particle size of at least about 2 μm; andseparating at least about 95 wt % of the catalyst particles having a particle size of at least about 2 μm from the slurry hydroprocessing effluent using a catalyst recovery system comprising one or more drum separators and a cross-flow filter.2. The process of claim 1 , wherein the feedstock has a T95 distillation point of about 600° C. or less.3. The process of claim 1 , wherein the feedstock has a 10% distillation point of at least about 900° F. (˜482° C.) claim 1 , a Conradson carbon residue of at least about 27.5 wt % claim 1 , or a combination thereof.4. The process of claim 1 , wherein the one or more drum separators comprise cyclone separators.5. The process of claim 1 , further comprising exposing the feedstock to a demetallization catalyst under slurry ...

Подробнее
Номер записи: 12
13-01-2022 дата публикации

A CATALYST COMPOSITION AND ITS APPLICATIONS THEREOF

Номер: US20220009780A1
Автор: BOJJA Ramachandra Rao, Gandham Sri Ganesh, Kumar Pramod, MEESALA Lavanya
Принадлежит:

The present disclosure discloses a catalyst composition comprising: (a) at least one steamed biochar; and (b) at least one tri-metallic catalyst, comprising metals selected from the group consisting of nickel, copper, zinc, and combinations thereof, wherein nickel loading is in the range of 20-60 wt %, the copper loading is in the range of 0.5-5.0 wt %, and the zinc loading is in the range of 0.5-5.0 wt with respect to the at least one steamed biochar. The instant disclosure further relates to a process of preparation of the catalyst composition and a process for production of hydrogen gas and carbon nanotubes. 1) A catalyst composition comprising:(a) at least one steamed biochar; and 'wherein the nickel loading is in the range of 20-60 wt %, the copper loading is in the range of 0.5-5.0 wt %, and the zinc loading is in the range of 0.5-5.0 wt % with respect to the at least one steamed biochar.', '(b) at least one tri-metallic catalyst comprising metals selected from the group consisting of nickel, copper, zinc, and combinations thereof,'}2) The composition as claimed in claim 1 , wherein the nickel loading is in the range of 27-31 wt % claim 1 , the copper loading is in the range of 2.0-2.7 wt % claim 1 , and zinc loading is in the range of 2.0-2.7 wt % with respect to the at least one steamed biochar.3) The catalyst composition as claimed in claim 1 , wherein the at least one tri-metallic catalyst is disposed on claim 1 , within claim 1 , or combination of on or within claim 1 , the at least one steamed biochar.4) The catalyst composition as claimed in claim 1 , wherein the at least one steamed biochar has a surface area in the range of 700-950 m/g and a pore volume in the range of 0.60-0.70 cc/g.5) The catalyst composition as claimed in claim 1 , wherein the at least one steamed biochar is obtained from raw biochar saw dust claim 1 , raw biochar rice straw claim 1 , raw biochar rice husk claim 1 , raw biochar bagasse claim 1 , other agricultural wastes claim 1 , ...

Подробнее
Номер записи: 13
20-01-2022 дата публикации

METHOD OF PRODUCING AN AROMATIZATION CATALYST

Номер: US20220016609A1
Автор: Al-Eid Manal, Alnaimi Essa, Ding Lianhui
Принадлежит: Saudi Arabian Oil Company

According to the subject matter of the present disclosure, a method of producing an aromatization catalyst may comprise producing a plurality of uncalcined ZSM-5 nanoparticles via a dry-gel method, directly mixing the plurality of uncalcined ZSM-5 nanoparticles with large pore alumina and a binder to form a ZSM-5/alumina mixture, and calcining the ZSM-5/alumina mixture to form the aromatization catalyst. The plurality of uncalcined ZSM-5 nanoparticles may have an average diameter of less than 80 nm. 1. A method of producing an aromatization catalyst , the method comprising:producing a plurality of uncalcined ZSM-5 nanoparticles via a dry-gel method,wherein the plurality of ZSM-5 nanoparticles has an average diameter of less than 80 nm;directly mixing the plurality of uncalcined ZSM-5 nanoparticles with large pore alumina and a binder to form a ZSM-5/alumina mixture; andcalcining the ZSM-5/alumina mixture to form the aromatization catalyst; wherein the large pore alumina has a pore size of from 18 nm to 26 nm.2. The method of producing an aromatization catalyst of claim 1 , wherein the plurality of uncalcined ZSM-5 nanoparticles has not been subjected to centrifugation above 3 claim 1 ,000 rpm claim 1 , before being mixed with the large pore alumina and binder.3. The method of producing an aromatization catalyst of claim 1 , wherein the plurality of uncalcined ZSM-5 nanoparticles has not been subjected to calcination above 200° C. for more than 30 minutes claim 1 , before being mixed with the large pore alumina and binder.4. The method of producing an aromatization catalyst of claim 1 , wherein the ZSM-5/alumina mixture is calcined at a temperature of from 400° C. to 700° C. for from 1 hour to 10 hours.5. The method of producing an aromatization catalyst of claim 1 , wherein the aromatization catalyst is impregnated with gallium atoms to form a Ga-ZSM-5 catalyst.6. The method of producing an aromatization catalyst of claim 5 , wherein the Ga-ZSM-5 catalyst is ...

Подробнее
Номер записи: 14
10-01-2019 дата публикации

OLEFIN METATHESIS METHOD USING A CATALYST CONTAINING SILICON AND MOLYBDENUM

Номер: US20190009260A1
Автор: Bonduelle Audrey, Chaumonnot Alexandra, DELCROIX Damien, FORGET Severine, RAFIK-CLEMENT Souad, Vallee Christophe
Принадлежит: IFP ENERGIES NOUVELLES

The invention relates to a process for the metathesis of olefins implemented with a catalyst comprising a mesoporous matrix and at least the elements molybdenum and silicon, said elements being incorporated into said matrix by means of at least one precursor comprising molybdenum and silicon and having at least one sequence of Si—O—Mo bonds. 1. Process for the metathesis of olefins carried out by bringing the olefins into contact with a catalyst comprising a mesoporous matrix and at least the elements molybdenum and aluminium , said elements being incorporated into said matrix using at least one precursor comprising molybdenum and silicon and having at least one sequence of Si—O—Mo bonds.2. Process according to in which the precursor is a molybdenum coordination complex containing a siloxy ligand and comprising at least one sequence of Si—O—Mo bonds and/or a precursor of heteropolyanion type based on molybdenum containing at least one sequence of Si—O—Mo bonds.4. Process according to claim 2 , in which when the precursor is a precursor of molybdenum coordination complex type containing a siloxy ligand claim 2 , it corresponds to formula (Ia):{'br': None, 'sub': m', 'n′', '3', 'p, 'Mo(≡N)(OSiR)\u2003\u2003(Ia)'}in whichthe R groups, identical to or different from each other, can be selected from the substituted or unsubstituted alkyl, cycloalkyl and aryl groups, preferably comprising between 1 and 10 carbon atoms, or from the substituted or unsubstituted cycloalkyl and aryl groups,m is equal to 1 or 2,n′ is comprised between 0 and 2,p is comprised between 1 and 10.5. Process according to in which when the precursor is a precursor of molybdenum coordination complex type containing a siloxy ligand claim 2 , it corresponds to formula (Ib){'br': None, 'sub': m', 'n', '3', 'p, 'Mo(═O)(OSiR)\u2003\u2003(Ib)'}in whichthe R groups, identical to or different from each other, can be selected from the substituted or unsubstituted alkyl, cycloalkyl and aryl groups, preferably ...

Подробнее
Номер записи: 15
09-01-2020 дата публикации

NI-AL2O3@AL2O3-SIO2 CATALYST WITH COATED STRUCTURE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Номер: US20200009538A1
Автор: Li Haitao, SUN Zijin, WANG Yongzhao, ZHANG Hongxi, ZHAO Lili, Zhao Yongxiang
Принадлежит:

A Ni—AlO@AlO—SiOcatalyst with coated structure is provided. The catalyst has a specific surface area of 98 m/g to 245 m/g, and a pore volume of 0.25 cm/g to 1.1 cm/g. A mass ratio of an AlOcarrier to active component Ni in the catalyst is AlO:Ni=100:4˜26, a mass ratio of the AlOcarrier to an AlO—SiOcoating layer is AlO:AlO—SiO=100:0.1˜3, and a molar ratio of Al to Si in the AlO—SiOcoating layer is 0.01 to 1. Ni particles are distributed on a surface of the AlOcarrier in an amorphous or highly dispersed state and have a grain size less than or equal to 8 nm, and the coating layer is filled among the Ni particles. 1. A Ni—AlO@AlO—SiOcatalyst with coated structure , comprising: Ni particles are distributed on a surface of an AlOcarrier in an amorphous or highly dispersed state as an active component for the catalyst and have a grain size less than or equal to 8 nm , a mass ratio of the AlOcarrier to an AlO—SiOcoating layer is AlO:AlO—SiO=100:0.1˜3 , a molar ratio of Al to Si in the AlO—SiOcoating layer is 0.01˜0.1:1 , and the coating layer is filled among the Ni particles.2. The Ni—AlO@AlO—SiOcatalyst with coated structure according to claim 1 , wherein the catalyst has a specific surface area of 98 m/g˜245 m/g claim 1 , and a pore volume of 0.25 cm/g˜1.1 cm/g claim 1 , and a mass ratio of the AlOcarrier to the active component Ni in the catalyst is AlO:Ni=100:4˜26.3. A preparation method of the Ni—AlO@AlO—SiOcatalyst with coated structure according to claim 1 , comprising the steps of:{'sub': 2', '3', '2', '3, 'impregnation step: loading the active component Ni onto the AlOcarrier using an impregnation method, Ni being distributed in tetrahedral and octahedral holes on an AlOsurface and growing into microcrystalline particles by using the tetrahedral and octahedral holes as nuclei;'}{'sub': 2', '3', '2', '2', '3', '2', '3', '2', '2', '3, 'deposition step: loading the AlO—SiOlayer in a depositing manner onto a surface of a Ni/AlOcatalyst obtained in the impregnation ...

Подробнее
Номер записи: 16
09-01-2020 дата публикации

Modified Y-Type Molecular Sieve, Preparation Thereof and Catalyst Comprising the Same

Номер: US20200009541A1
Автор: Chen Zhenyu, TIAN Huiping, XU Mingde, ZHANG Weilin, ZHOU Lingping, ZHU Yuxia
Принадлежит:

A modified Y-type molecular sieve has a rare earth oxide content of about 4% to about 12% by weight, a phosphorus content of about 0% to about 10% by weight, a sodium oxide content of no more than about 1.0% by weight, a total pore volume of about 0.36 to 0.48 mL/g, a percentage of the pore volume of secondary pores to the total pore volume of about 20% to about 40%, a lattice constant of about 2.440 nm to about 2.455 nm, a percentage of the non-framework aluminum content to the total aluminum content of no more than about 10%, a lattice collapse temperature of not lower than about 1060° C., and a ratio of B acid to L acid of no less than about 3.50. The preparation of the molecular sieve includes ion-exchange with rare earth, hydrothermal roasting, gas phase ultra-stabilization, acid treatment, and an optional phosphorus modification. 1. A modified Y-type molecular sieve , having a rare earth oxide content of about 4% to about 12% by weight , a phosphorus content of about 0% to about 10% by weight on the basis of PO , a sodium oxide content of no more than about 1.0% by weight , a total pore volume of about 0.36 mL/g to about 0.48 mL/g , a percentage of the pore volume of secondary pores having a pore size of 2-100 nm to the total pore volume of the modified Y-type molecular sieve of about 20% to about 40% , a lattice constant of about 2.440 nm to about 2.455 nm , a percentage of the non-framework aluminum content to the total aluminum content of the modified Y-type molecular sieve of no more than about 10% , a lattice collapse temperature of not lower than about 1060° C. , and a ratio of B acid to L acid in the total acid content of the modified Y-type molecular sieve of no less than about 3.5 , as determined by pyridine adsorption infrared spectroscopy at 200° C.2. The modified Y-type molecular sieve according to claim 1 , wherein the modified Y-type molecular sieve has a percentage of the pore volume of secondary pores having a pore size of 2-100 nm to the total ...

Подробнее
Номер записи: 17
27-01-2022 дата публикации

Oxygen reduction reaction catalyst

Номер: US20220029172A1
Автор: Deborah Jones, Fabrice Salles, Frederic Christophe JAQUEN, Marie Josephe Vanessa Armel, Sheena Hindocha, Stephen Charles Bennett
Принадлежит: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS, Johnson Matthey Fuel Cells Ltd, Universite de Montpellier

A method for the manufacture of an oxygen reduction reaction (ORR) catalyst, the method comprising; providing a metal organic framework (MOF) material having a specific internal pore volume of 0.7 cm 3 g −1 or greater; providing a source of iron and/or cobalt; pyrolysing the MOF material together with the source of iron and/or cobalt to form the catalyst, wherein the MOF material comprises nitrogen and/or the MOF material is pyrolysed together with a source of nitrogen and the source of iron and/or cobalt is disclosed.

Подробнее
Номер записи: 18
03-02-2022 дата публикации

HYDROCRACKING CATALYSTS CONTAINING RARE EARTH CONTAINING POST-MODIFIED USY ZEOLITE, METHOD FOR PREPARING HYDROCRACKING CATALYSTS, AND METHOD FOR HYDROCRACKING HYDROCARBON OIL WITH HYDROCRACKING CATALYSTS

Номер: US20220032273A1
Автор: Hodgkins Robert Peter, KOSEOGLU Omer Refa, Uchida Koji, Watabe Mitsunori
Принадлежит:

In accordance with one or more embodiments of the present disclosure, a catalyst composition includes a catalyst support and at least one hydrogenative component disposed on the catalyst support. The catalyst support includes at least one USY zeolite having a framework substituted with titanium and zirconium. The framework-substituted USY zeolite comprises at least one rare earth element. Methods of making and using such a catalyst in a hydrocracking process are also disclosed. 1. A catalyst composition comprising:a catalyst support comprising at least one framework-substituted ultra-stable Y-type (USY) zeolite substituted with zirconium atoms and titanium atoms, the at least one framework-substituted USY zeolite comprising at least one doped rare earth element; andat least one hydrogenative component disposed on the catalyst support.2. The catalyst composition of claim 1 , wherein the at least one framework-substituted USY zeolite is substituted with 0.1 wt. % to 5 wt. % zirconium atoms and 0.1 wt. % to 5 wt. % titanium calculated on an oxide basis.3. The catalyst composition of claim 1 , wherein the rare earth element is selected from the group consisting of scandium claim 1 , yttrium claim 1 , lanthanum claim 1 , cerium claim 1 , praseodymium claim 1 , neodymium claim 1 , promethium claim 1 , samarium claim 1 , europium claim 1 , gadolinium claim 1 , terbium claim 1 , dysprosium claim 1 , holmium claim 1 , erbium claim 1 , thulium claim 1 , ytterbium claim 1 , lutetium claim 1 , and a combination of two more thereof.4. The catalyst composition of claim 1 , wherein the framework-substituted USY zeolite comprises a crystal lattice constant from 2.43 nm to 2.45 nm.5. The catalyst composition of claim 1 , wherein the framework-substituted USY zeolite comprises a specific surface area from 600 m/g to 900 m/g.6. The catalyst composition of claim 1 , wherein the catalyst composition comprises a specific surface area from 200 m/g to 450 m/g.7. The catalyst composition of ...

Подробнее
Номер записи: 19
03-02-2022 дата публикации

METHODS FOR PRODUCING HIERARCHICAL MESOPOROUS BETA ZEOLITE

Номер: US20220032275A1
Автор: Zhang Ke
Принадлежит: Saudi Arabian Oil Company

A method for producing a hierarchical mesoporous beta includes mixing a beta zeolite with an aqueous metal hydroxide solution and heating the beta zeolite and the aqueous metal hydroxide mixture to produce a desilicated beta zeolite, contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite, and treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite. The hierarchical mesoporous beta zeolite includes a molar ratio of silicon to aluminum of greater than 12.5, a total pore volume of greater than or equal to the total pore volume of the intermediate hierarchical mesoporous beta zeolite, and an average mesopore size of greater than or equal to the average mesopore size of the hierarchical mesoporous beta zeolite. The method may also include calcining the intermediate hierarchical mesoporous beta zeolite. 1. A method for producing a hierarchical mesoporous beta zeolite , the method comprising:mixing a beta zeolite with an aqueous metal hydroxide solution;heating the beta zeolite and the aqueous metal hydroxide mixture at a temperature of greater than or equal to 100° C., wherein the heating causes desilication of the beta zeolite to produce a desilicated beta zeolite;{'sup': '3', 'contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite comprising (a) a molar ratio of silicon to aluminum of less than 12.5, (b) a total pore volume of greater than or equal to 0.3 cm/g, and (c) an average mesopore size of greater than 8 nm, wherein the contacting causes ion exchange of sodium ions with ammonium ions in the intermediate hierarchical mesoporous beta zeolite; and'}treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite comprising (e) a molar ratio of silicon to ...

Подробнее
Номер записи: 20
18-01-2018 дата публикации

Method for Preparation of a Group 4 Metal Silicate and Use Thereof

Номер: US20180015447A1
Автор: Jim Aloysius Maria Brandts, Lorianne Wagemaker
Принадлежит: BASF Corp

The invention provides a method for the preparation of an amorphous silicate of at least one metal from the Group 4 of the Periodic Table of Elements with a total pore volume of at least 0.3 mL/g. The method of preparation involves the use of pore shaping conditions, which can be the use of a pore shaper and optionally an increased precipitation temperature, e.g. at least 60° C. The silicate of the invention is especially suitable in catalytic reactions such as esterifications, Michael additions, transesteritications, (ep)oxidations, hydroxylations, or in absorbance of small inorganic and organic molecules e.g. CO 2 or aromatic compounds.

Подробнее
Номер записи: 21
17-01-2019 дата публикации

METHOD FOR FABRICATING A TITANIUM-CONTAINING SILICON OXIDE MATERIAL WITH HIGH THERMAL STABILITY AND APPLICATIONS OF THE SAME

Номер: US20190015817A1
Автор: Hsu Yu-Chuan, TSAI Hsi-Chin
Принадлежит:

The present invention discloses a method for fabricating a titanium-containing silicon oxide material with high thermal stability and applications of the same, wherein a titanium source, a silicon source, an alkaline source, a template molecule and a peroxide are formulated into an aqueous solution; the aqueous solution reacts to generate a solid product; the solid product is separated from the aqueous solution with a solid-liquid separation process and dried; the solid product is calcined to obtain a titanium-containing silicon oxide material with high specific surface area. The titanium-containing silicon oxide material fabricated by the present invention has high thermal stability. Therefore, it still possesses superior catalytic activity after calcination. The titanium-containing silicon oxide material can be used to catalyze epoxidation of olefin and is very useful in epoxide production. 1. A method for fabricating a titanium-containing silicon oxide material with high thermal stability , comprising steps:mixing a titanium source, a silicon source, an alkaline source, a template molecule, a solvent and a peroxide to form an aqueous solution;after said aqueous solution have reacted, undertaking a solid-liquid separation process of said aqueous solution, and undertaking a drying process of a solid product separated from said aqueous solution; and {'br': None, 'i': x', 'x, 'sub': 2', '2, 'TiO(1−)SiO\u2003\u2003(I)'}, 'undertaking a calcination process of said solid product acquired in said solid-liquid separation process to obtain a titanium-containing silicon oxide material having Formula (I) in an anhydrous statewherein x ranges from 0.00001-0.5;wherein said titanium-containing silicon oxide material has an average pore size of 10 angstroms or more;wherein said titanium-containing silicon oxide material has a pore size of 90% or more of the total pore volume of 5 to 200 Å; and{'sup': '3', 'wherein said titanium-containing silicon oxide material has a specific ...

Подробнее
Номер записи: 22
21-01-2021 дата публикации

POROUS FORMED BODY AND PRODUCTION METHOD THEREOF, alpha-OLEFIN DIMERIZATION CATALYST AND PRODUCTION METHOD THEREOF, AND METHOD OF PRODUCING alpha-OLEFIN DIMER

Номер: US20210016248A1
Автор: Kawahara Jun, Murakami Masami, NIISHIRO Ryo
Принадлежит:

A porous formed body (Y) including a porous formed body (X) that satisfies the following (x-1) to (x-3), and an alkali metal carbonate or an alkali metal bicarbonate, in which a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X), and a production method thereof, an α-olefin dimerization catalyst and a production method thereof, and a method of producing an α-olefin dimer: 1. A porous formed body (Y) , comprising:a porous formed body (X) that satisfies the following requirements (x-1) to (x-3); andan alkali metal carbonate or an alkali metal bicarbonate,wherein a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X):requirement (x-1): a volume of pores with a pore diameter in a range of from 0.01 μm to 100 μm is from 0.10 mL/g to 1.00 mL/g;requirement (x-2): a median pore diameter of pores with a pore diameter in a range of from 0.01 μm to 100 μm is from more than 0.01 μm to 10.0 μm; andrequirement (x-3): a crushing strength is from 0.7 kgf to 15.0 kgf.2. The porous formed body (Y) according to claim 1 , wherein the porous formed body (X) further satisfies the following requirement (x-4):requirement (x-4): the porous formed body (X) contains at least one compound selected from the group consisting of an oxide of a metal or a rare earth element and a complex oxide thereof, zeolite, activated carbon, and SiC.3. The porous formed body (Y) according to claim 1 , wherein the alkali metal carbonate or the alkali metal bicarbonate is at least one compound selected from the group consisting of NaCO claim 1 , NaHCO claim 1 , KCO claim 1 , and KHCO.4. The porous formed body (Y) according to claim 1 , wherein the porous formed body (Y) has a volume of pores with a pore diameter in a range of from 0.01 ...

Подробнее
Номер записи: 23
21-01-2021 дата публикации

A CO TO CO2 COMBUSTION PROMOTER

Номер: US20210016260A1
Автор: ARU Guido William
Принадлежит: COCHISE TECHNOLOGY, LLC

The invention is directed to a CO to COcombustion promoter comprising microsphere sized porous silica and/or alumina comprising particles further comprising on or more Group VIII noble metals wherein the noble metal is distributed in the particle as an eggshell such that a higher content of noble metal is present in the outer region of the particle as compared to the content of noble metal in the center of the particle. 1. A CO to COcombustion promoter comprising microsphere sized porous particles comprising at least one of silica and alumina and further comprising one or more Group VIII noble metals wherein the noble metal is distributed in the particle as an eggshell such that a higher content of noble metal is present in the outer region of the particle as compared to the content of noble metal in the centre of the particle.2. The combustion promoter according to claim 1 , wherein the microsphere sized particles have an average (D50) size of between 60 and 90 microns as measured by laser diffraction.3. The combustion promoter according to claim 1 , wherein microsphere sized particle is a gamma and/or theta alumina particle.4. The combustion promoter according to claim 1 , wherein the microsphere sized particle is a spray dried silica particle.5. The combustion promoter according to claim 1 , wherein the microsphere sized particle is an equilibrium or spent catalyst as obtained from a fluidized catalytic cracking (FCC) process.6. The combustion promoter according to claim 1 , wherein the attrition index as measured according to ASTM D-5757 of the CO to COcombustion promoter for a sieve fraction of combustion promoter particles of between 40 and 105 microns is between 5 and 25.7. The combustion promoter according to claim 6 , wherein the attrition index of the CO to COcombustion promoter for a sieve fraction of combustion promoter particles of between 40 and 105 microns is between 10 and 20.8. The combustion promoter according to claim 1 , wherein the Group VIII ...

Подробнее
Номер записи: 24
25-01-2018 дата публикации

POROUS BODIES WITH ENHANCED PORE ARCHITECTURE

Номер: US20180021755A1
Автор: Suchanek Wojciech L.
Принадлежит: Scientific Design Company, Inc.

A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m/g to 3.0 m/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier. 1. A precursor mixture for producing a porous body , the precursor mixture comprising:(i) at least one milled alpha alumina powder having a particle size of 0.1 microns to 6 microns,(ii) a non-silicate binder, and(iii) at least one principle burnout material having a particle size of 1 micron to 10 microns.2. The precursor mixture of claim 1 , wherein the least one milled alpha alumina powder claim 1 , the non-silicate binder claim 1 , and the at least one principle burnout material are in a homogeneous mixture.3. The precursor mixture of claim 1 , wherein the at least one principle burnout material is a granulated polyolefin.4. The precursor mixture of claim 3 , wherein the granulated polyolefin is one of polyethylene and polypropylene.5. The precursor mixture of claim 1 , further comprising unmilled alpha alumina powder.6. The precursor mixture of claim 5 , wherein the unmilled alpha alumina powder has an average particle size from 10 microns to 100 microns.7. The precursor mixture of claim 5 , wherein a weight ratio of the milled alpha alumina powder to the unmilled alpha alumina powder is from about 0.25:1 to 5:1.8. The precursor mixture of claim 5 , further comprising an additional unmilled alpha alumina powder having a particle size greater the particle size of the unmilled ...

Подробнее
Номер записи: 25
24-01-2019 дата публикации

Porous Carbon Material, Method for Manufacturing Same, Filter, Sheet, and Catalyst Carrier

Номер: US20190023578A1
Автор: ISHII Takuhiro, Kimura Kazuhiro, TAKEKUMA Hirofumi, TANBA Katsuya, Yamada Shinichiro
Принадлежит: DEXERIALS CORPORATION

A porous carbon material 1. A porous carbon materialwherein a particle diameter is 10 μm or more but 1 cm or less;{'sup': '3', 'wherein a bulk specific gravity is 0.20 g/cmor more; and'}{'sup': '3', 'wherein a mesopore volume is 0.10 cm/g or more.'}2. The porous carbon material according to claim 1 , wherein the porous carbon material comprises a plant-derived material.3. The porous carbon material according to claim 2 , wherein the plant-derived material is chaff.4. A filter comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the porous carbon material according to .'}5. The filter according to claim 4 , wherein the filter is for water purification.6. The filter according to claim 4 , wherein the filter is for air cleaning.7. A filter cartridge comprising{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'the filter according to .'}8. A sheet comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the porous carbon material according to .'}9. A catalyst carrier comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the porous carbon material according to .'}10. A method for producing the porous carbon material according to claim 1 , the method comprising:pressure-molding a plant-derived material to thereby obtain a molded product,carbonizing the molded product to thereby obtain a carbonized product, andactivating the carbonized product.11. The method for producing the porous carbon material according to claim 10 , wherein the plant-derived material is chaff.12. The method for producing the porous carbon material according to claim 10 , wherein the molded product is obtained by pressure-molding the plant-derived material having a water content of 3% by mass or more but 30% by mass or less. The present invention relates to a porous carbon material, and a method for producing the porous carbon material, and a filter, a sheet, and a catalyst carrier.Porous carbon materials represented by activated carbon are obtained by activating charred products, ...

Подробнее
Номер записи: 26
23-01-2020 дата публикации

Acid-resistant catalyst supports and catalysts

Номер: US20200023339A1
Автор: Cristian Libanati, Steve R Schmidt
Принадлежит: WR Grace and Co Conn

A process for preparing a catalyst comprises coating substantial internal surfaces of porous inorganic powders with titanium oxide to form titanium oxide-coated inorganic powders. After the coating, an extrudate comprising the titanium oxide-coated inorganic powders is formed and calcined to form a catalyst support. Then, the catalyst support is impregnated with a solution containing one or more salts of metal selected from the group consisting of molybdenum, cobalt, and nickel.

Подробнее
Номер записи: 27
23-01-2020 дата публикации

Shaped porous carbon products

Номер: US20200023340A1
Автор: Alfred Hagemeyer, Eric L. Dias, Gary M. Diamond, Guang Zhu, Hong X. JIANG, James A.W. Shoemaker, James Longmire, Valery Sokolovskii, Vincent J. Murphy
Принадлежит: Archer Daniels Midland Co

Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.

Подробнее
Номер записи: 28
10-02-2022 дата публикации

Exhaust gas purifying filter

Номер: US20220042435A1
Автор: Hiroaki Kayama, Kazuhiko Koike
Принадлежит: Denso Corp

Provided is an exhaust gas purifying filter used with a HC purifying catalyst supported thereon. Numerous pores are formed in partitions of the exhaust gas purifying filter. In a cross-section of the partition, pores are open at a passage surface, having an open end of which the opening diameter is 50 μm or larger. In the cross-section of the partitions, the partitions include a narrow part where a pore diameter is 5 μm or more and the pore diameter becomes a minimum in a region. In the cross-section of the partitions, the region is positioned between a pair of virtual lines L 1 and L 2 extending from opposing sides of the opening end to a passage surface positioned opposite to the opening end along the wall thickness direction X, Z. The pore diameter at the narrow part is 6% or more and less than or equal to 20% of the opening diameter.

Подробнее
Номер записи: 29
10-02-2022 дата публикации

Exhaust gas purification filter

Номер: US20220042436A1
Автор: Hiroaki Kayama
Принадлежит: Denso Corp

An exhaust gas purification filter is used so as to support a NO X purification catalyst. The exhaust gas purification filter includes a honeycomb structure portion and a plug portion. The honeycomb structure portion includes a partition wall and cells. Numerous pores are formed in the partition wall. The cells are partitioned by the partition walls and form a flow path for an exhaust gas. The plug portion alternately seals an inflow end surface or an outflow end surface for the exhaust gas in the cells. The partition wall has a gas permeability coefficient that is equal to or greater than 0.35×10 −12 m 2 , a pore volume ratio of pore diameters of 9 μm or less that is equal to or less than 25%, and an average pore diameter that is equal to or greater than 12 μm.

Подробнее
Номер записи: 30
28-01-2021 дата публикации

METHOD OF PREPARING SILICA SUPPORTED CoMoS HYDRODESULFURIZATION CATALYSTS

Номер: US20210024435A1
Автор: ALHOOSHANI Khalid R., GANIYU Saheed Adewale, TANIMU Abdulkadir
Принадлежит: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

A method of preparing hydrodesulfurization catalysts having cobalt and molybdenum sulfide deposited on a support material containing mesoporous silica. The method utilizes a sulfur-containing silane that dually functions as a silica source and a sulfur precursor. The method involves an one-pot strategy for hydrothermal treatment and a single-step calcination and sulfidation procedure. The application of the hydrodesulfurization catalysts in treating a hydrocarbon feedstock containing sulfur compounds to produce a desulfurized hydrocarbon stream is also specified. 1: A method of preparing a CoMoS hydrodesulfurization catalyst , the method comprising:mixing a molybdenum precursor, a cobalt precursor, a mercaptoalkyltrialkoxysilane, a structural directing surfactant, an acid, and a solvent to form a reaction mixture;hydrothermally treating the reaction mixture to form a dried mass; andcalcining the dried mass in an activation gas thereby forming the CoMoS hydrodesulfurization catalyst,wherein:the activation gas is at least one selected from the group consisting of air, argon, nitrogen, helium, hydrogen, and carbon monoxide; andthe CoMoS hydrodesulfurization catalyst comprises cobalt and molybdenum sulfide disposed on a support material comprising a mesoporous silica.2: The method of claim 1 , wherein the CoMoS hydrodesulfurization catalyst is not subjected to a sulfidation with a sulfidation reagent.3: The method of claim 1 , wherein the mercaptoalkyltrialkoxysilane is at least one selected from the group consisting of (mercaptomethyl)trimethoxysilane claim 1 , (mercaptomethyl)triethoxysilane claim 1 , (mercaptomethyl)tripropoxysilane claim 1 , (2-mercaptoethyl)trimethoxysilane claim 1 , (2-mercaptoethyl)triethoxysilane claim 1 , (2-mercaptoethyl)tripropoxysilane claim 1 , (3-mercaptopropyl)trimethoxysilane claim 1 , (3-mercaptopropyl)triethoxysilane claim 1 , and (3-mercaptopropyl)tripropoxysilane.4: The method of claim 3 , wherein the mercaptoalkyltrialkoxysilane is ...

Подробнее
Номер записи: 31
28-01-2021 дата публикации

HYDRODESULFURIZATION CATALYST WITH A ZEOLITE-GRAPHENE MATERIAL COMPOSITE SUPPORT AND METHODS THEREOF

Номер: US20210024436A1
Автор: AWADH TAWFIK ABDO SALEH, ELSAYED Islam Ali
Принадлежит: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

A hydrodesulfurization catalyst, which includes (i) a catalyst support including a zeolite doped with 0.1 to 0.5 wt. % of a graphene material, based on a total weight of the catalyst support, (ii) 5 to 20 wt. % of molybdenum, based on a total weight of the hydrodesulfurization catalyst, and (iii) 1 to 6 wt. % of a promoter selected from the group consisting of cobalt and nickel, based on a total weight of the hydrodesulfurization catalyst. The molybdenum and the promoter are homogeneously disposed on the catalyst support. A method of producing the hydrodesulfurization catalyst via incipient wetness impregnation techniques, and a method for desulfurizing a hydrocarbon feedstock with the hydrodesulfurization catalyst are also provided. 1: A hydrodesulfurization catalyst , comprising:a catalyst support comprising a zeolite doped with 0.1 to 0.5 wt. % of a graphene material, based on a total weight of the catalyst support;5 to 20 wt. % of molybdenum, based on a total weight of the hydrodesulfurization catalyst; and1 to 6 wt. % of a promoter selected from the group consisting of cobalt and nickel, based on a total weight of the hydrodesulfurization catalyst;wherein the molybdenum and the promoter are homogeneously disposed on the catalyst support.2: The hydrodesulfurization catalyst of claim 1 , wherein the zeolite is a Y-zeolite.3: The hydrodesulfurization catalyst of claim 1 , wherein the graphene material is present in the catalyst support in an amount of 0.3 to 0.4 wt. % claim 1 , based on a total weight of the catalyst support.4: The hydrodesulfurization catalyst of claim 1 , wherein the graphene material is graphene oxide.5: The hydrodesulfurization catalyst of claim 1 , wherein molybdenum is present in an amount of 14 to 16 wt. % claim 1 , and the promoter is present in an amount of 4 to 6 wt. % claim 1 , each based on a total weight of the hydrodesulfurization catalyst.6: The hydrodesulfurization catalyst of claim 1 , wherein the catalyst support consists of the ...

Подробнее
Номер записи: 32
02-02-2017 дата публикации

COMPOSITE OXIDE

Номер: US20170028384A1
Автор: Murota Tadatoshi, ONO Shigeru, TAHARA Tomonori
Принадлежит: SANTOKU CORPORATION

Provided are a composite oxide which is suitable as a co-catalyst for an exhaust gas purifying catalyst or the like, has high heat resistance, and has an excellent oxygen absorbing and desorbing capability at low temperatures and a method for producing the composite oxide. The composite oxide contains Ce and Zr, wherein the Ce content is 30 to 80 at % and the Zr content is 20 to 70 at %, based on the total of Ce and Zr being 100 at %, or further contains particular element M, wherein the Ce content is not less than 30 at % and less than 80 at %, the Zr content is not less than 20 at % and less than 70 at %, and the content of element M is more than 0 at % and not more than 15 at %, based on the total of Ce, Zr, and element M being 100 at %. 1. A method for producing a composite oxide comprising Ce and Zr , wherein a content of Ce is not less than 30 at % and not more than 80 at % and a content of Zr is not less than 20 at % and not more than 70 at % , based on a total of Ce and Zr being 100 at % , wherein said composite oxide has CaF-type structure phase or CaF-like structure phase , wherein a ratio of an actual lattice parameter in the (311) plane to theoretical lattice parameter (actual value/theoretical value) is 1.000 , and wherein said composite oxide has a property of exhibiting a total pore volume of not less than 0.30 cc/g after calcination at 1000° C. for 5 hours in atmosphere; (a) heating and holding an aqueous solution of zirconium containing zirconium ions at 90 to 100° C. for 5 to 12 hours,', '(b) mixing said aqueous solution of zirconium heated and held, with an aqueous solution of cerium not less than 90 mol % of which cerium ions are tetravalent, to obtain a mixed aqueous solution, and heating and holding said mixed aqueous solution at 90 to 100° C. for 15 to 25 hours,', '(c) mixing s aid mixed aqueous solution heated and held, with a precipitant containing a surfactant to obtain a precipitate, and', '(d) calcining said precipitate in an oxidizing ...

Подробнее
Номер записи: 33
04-02-2016 дата публикации

HYDROCARBON REFORMING/TRAPPING MATERIAL AND METHOD FOR REMOVING HYDROCARBON

Номер: US20160030933A1
Автор: Itabashi Keiji, Monma Kiyofumi, Ogura Masaru, Okubo Tatsuya, Shanmugam Palani Elangovan
Принадлежит:

To provide a hydrocarbon reforming/trapping material which is capable of adsorbing and reforming a hydrocarbon. A hydrocarbon reforming/trapping material of the present invention has an SiO/Al2Oratio of from 7 to 12, and contains an Fe(II)-substituted beta zeolite which is ion-exchanged by Fe(II) ions. The amount of supported Fe(II) is preferably 0.001-0.5 mmol/g with respect to the Fe(II)-substituted beta zeolite. This Fe(II)-substituted beta zeolite is suitably produced by dispersing and mixing a beta zeolite having an SiO/AlOratio of from 7 to 12 in an aqueous solution of a water-soluble compound of divalent iron, and mixing and stirring the solution, so that Fe(II) ions are supported on the beta zeolite. 19-. (canceled)10. A hydrocarbon reforming/trapping material comprising an Fe(II)-substituted beta zeolite which has been ion-exchanged with Fe(II) ions , where an SiO/AlOratio is from 7 to 12.11. A hydrocarbon reforming/trapping material according to claim 10 , wherein a supported amount of Fe(II) is 0.001 to 0.5 mmol/g with respect to the Fe(II)-substituted beta zeolite.12. A hydrocarbon reforming/trapping material according to claim 10 , wherein claim 10 , as a beta zeolite before being ion-exchanged with Fe(II) ions claim 10 , a beta zeolite having a SiO/AlOratio from 7 to 12 is used.13. A hydrocarbon reforming/trapping material according to claim 11 , wherein claim 11 , as a beta zeolite before being ion-exchanged with Fe(II) ions claim 11 , a beta zeolite having a SiO/AlOratio from 7 to 12 is used.14. A hydrocarbon reforming/trapping material according to claim 10 , wherein a BET specific surface area is 300 to 600 m/g claim 10 , a micropore specific surface area is 270 to 500 m/g claim 10 , and a micropore volume is 0.14 to 0.25 cm/g.15. A hydrocarbon reforming/trapping material according to claim 11 , wherein a BET specific surface area is 300 to 600 m/g claim 11 , a micropore specific surface area is 270 to 500 m/g claim 11 , and a micropore volume is 0 ...

Подробнее
Номер записи: 34
04-02-2016 дата публикации

HYDROPROCESSING CATALYST AND HYDROPROCESSING CATALYST OF MAKING THE SAME

Номер: US20160030934A1
Автор: Maesen Theodorus Ludovicus Michael, Timken Hye Kyung Cho, Zhan Bi-Zeng
Принадлежит:

The present invention is directed to a hydroprocessing catalyst containing at least one catalyst support, one or more metals, optionally one or more molecular sieves, optionally one or more promoters, wherein deposition of at least one of the metals is achieved in the presence of a modifying agent. 1. A hydroprocessing catalyst , comprising:at least one molecular sieve which is a Y zeolite with a unit cell size of between 24.15 Å and 24.45 Å; and{'sub': '2', 'sup': 2', '2, 'at least one metal deposited on an amorphous silica-alumina catalyst support containing SiOin an amount of 10 wt. % to 70 wt. % of the dry bulk weight of the carrier as determined by ICP elemental analysis, a BET surface area of between 450 m/g and 550 m/g, a total pore volume of between 0.75 mL/g and 1.05 mL/g, and a mean mesopore diameter of between 70 Å and 130 Å;'}wherein deposition of the metal is achieved in the presence of a modifying agent and with the catalyst support after the deposition subjected to drying for a period of time ranging from 1 to 5 hours and at a temperature sufficient to remove impregnation solution solvent but below the decomposition temperature of the modifying agent.2. The hydroprocessing catalyst of claim 1 , wherein the Y zeolite has a silica-to-alumina ratio of greater than 10 claim 1 , a micropore volume of from 0.15 mL/g to 0.27 mL/g claim 1 , a BET surface area of from 700 m/g to 825 m/g claim 1 , and a unit cell size of from 24.15 Å to 24.45 Å.3. The hydroprocessing catalyst of claim 1 , wherein Y zeolite has a silica-to-alumina ratio of greater than 10 claim 1 , a micropore volume of from 0.15 mL/g to 0.27 mL/g claim 1 , a BET surface area of from 700 m/g to 825 m/g claim 1 , and a unit cell size of from 24.15 Å to 24.35 Å claim 1 , and a low-acidity claim 1 , highly dealuminated ultrastable Y zeolite having an Alpha value of less than about 5 and Brønsted acidity of from 1 to 40 micro-mole/g.5. The hydroprocessing catalyst of claim 1 , wherein the modifying ...

Подробнее
Номер записи: 35
01-02-2018 дата публикации

METHODS FOR THE TREATMENT OF A FLUE GAS STREAM USING CATALYTICALLY-ENHANCED SORBENT COMPOSITIONS

Номер: US20180028970A1
Автор: Cayton Roger H., Huston Robert B., Lowring Jacob B., Wong Joseph M.
Принадлежит:

A sorbent composition that is useful for injection into a flue gas stream of a coal burning furnace to efficiently remove mercury from the flue gas stream. The sorbent composition may include a sorbent with an associated ancillary catalyst component that is a catalytic metal, a precursor to a catalytic metal, a catalytic metal compound or a precursor to a catalytic metal compound. Alternatively, a catalytic metal or metal compound, or their precursors, may be admixed with the coal feedstock prior to or during combustion in the furnace, or may be independently injected into a flue gas stream. A catalytic promoter may also be used to enhance the performance of the catalytic metal or metal compound. 1. A method for the removal of one or more contaminants from a flue gas stream , the method comprising the steps of:combusting a fuel source, the combusting generating a flue gas stream comprising one or more contaminants;contacting the flue gas stream with a solid sorbent and with an ancillary catalyst component;maintaining the ancillary catalyst component in contact with the flue gas stream for a period of time sufficient to catalytically oxidize at least a portion of the one or more contaminants and form an oxidized contaminant species; andsequestering the oxidized contaminant species with the solid sorbent.2. The method recited in claim 1 , wherein the solid sorbent has a mean particle diameter (D50) of not greater than about 25 μm.3. The method recited in claim 1 , wherein the solid sorbent has a mean particle diameter (D50) of not greater than about 20 μm.4. The method recited in claim 1 , wherein the solid sorbent has a mean particle diameter (D50) of not greater than about 15 μm.5. The method recited in claim 1 , wherein the solid sorbent comprises powdered activated carbon.6. The method recited in claim 1 , wherein the ancillary catalyst component comprises a catalytic metal selected from the group consisting of Fe claim 1 , Cu claim 1 , Mn claim 1 , Zn claim 1 , ...

Подробнее
Номер записи: 36
01-02-2018 дата публикации

Methods for the manufacture of a sorbent composition having a catalyst component

Номер: US20180028971A1
Автор: Jacob B. Lowring, Joseph M. Wong, Robert B. Huston, Roger H. Cayton
Принадлежит: ADA Carbon Solutions LLC

A sorbent composition that is useful for injection into a flue gas stream of a coal burning furnace to efficiently remove mercury from the flue gas stream. The sorbent composition may include a sorbent with an associated ancillary catalyst component that is a catalytic metal, a precursor to a catalytic metal, a catalytic metal compound or a precursor to a catalytic metal compound. Alternatively, a catalytic metal or metal compound, or their precursors, may be admixed with the coal feedstock prior to or during combustion in the furnace, or may be independently injected into a flue gas stream. A catalytic promoter may also be used to enhance the performance of the catalytic metal or metal compound.

Подробнее
Номер записи: 37
01-02-2018 дата публикации

ADDITIVES FOR GAS PHASE OXIDATIVE DESULFURIZATION CATALYSTS

Номер: US20180029023A1
Автор: Ismagilov Zinfer, Jin Yaming, Kerzhentsev Mikhail, KOSEOGLU Omer Refa, Parmon Valentin, Yashnik Svetlana
Принадлежит:

A composition useful in oxidative desulphurization of gaseous hydrocarbons is described. It comprises a CuZnAl—O mixed oxide, and an H form of a zeolite. The mixed oxide can contain one or more metal oxide promoters. The H form of the zeolite can be desilicated, and can also contain one or more transition metals. 1. A composition useful in oxidative desulfurization of gaseous , sulfur containing hydrocarbons , (i) a CuZnAl—O mixed oxide component comprising nominal copper oxide in an amount ranging from 10 weight percent (wt %) to 50 wt % , zinc oxide in an amount ranging from 5 wt % to less than 20 wt % , and aluminum oxide in an amount ranging from 20 wt % to 70 wt % , wherein said catalytic composition has a highly dispersed spinel oxide phase with a formula CuZnAlOwherein x ranges from 0 to 1 , dispersed crystalline ZnO and CuO , and (ii) at least one zeolite in H form.2. The composition of claim 1 , wherein said CuZnAL-O mixed oxide component is in granular form.3. The composition of claim 1 , formed as a cylinder claim 1 , a sphere claim 1 , a trilobe claim 1 , or a quatrolobe.4. The composition of claim 2 , wherein granules of said CuZnAL-O mixed oxide component have a diameter of from 1 mm to 4 mm.5. The composition of claim 1 , wherein said CuZnAl—O mixed oxide component has a surface area of from 10 m/g to 100 m/g.6. The composition of claim 1 , wherein the total pore volume of said CuZnAL-O mixed oxide component is from about 0.1 cm/g to about 0.5 cm/g7. The composition of claim 1 , said CuZnAl—O mixed oxide component comprising from 20 wt % to 45 wt % CuO claim 1 , from 10 wt % to less than 20 wt % ZnO claim 1 , and from 20 wt % to 70 wt % of AlO.8. The composition of claim 7 , said catalyst comprising from 30 wt % to 45 wt % CuO claim 7 , from 12 wt % to less than 20 wt % ZnO claim 7 , and from 20 wt % to 40 wt % AlO.9. The catalytic composition of claim 5 , said CuZnAl—O mixed oxide component having a surface area of from 50 m/g to 100 m/g.10. The ...

Подробнее
Номер записи: 38
01-02-2018 дата публикации

Catalyst System and Use in Heavy Aromatics Conversion Processes

Номер: US20180029025A1
Автор: Christine N. Elia, Hari Nair, Robert G. TINGER, Shifang L. Luo, Wenyih F. Lai
Принадлежит: ExxonMobil Chemical Patents Inc

Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C 8 + aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst system comprises (a) a first catalyst bed comprising a first catalyst composition, said first catalyst composition comprising a zeolite having a constraint index of 3 to 12 combined (i) optionally with at least one first metal of Group 10 of the IUPAC Periodic Table, and (ii) optionally with at least one second metal of Group 11 to 15 of the IUPAC Periodic Table; and (b) a second catalyst bed comprising a second catalyst composition, said second catalyst composition comprising (i) a meso-mordenite zeolite, combined (ii) optionally with at least one first metal of Group 10 of the IUPAC Periodic Table, and (iii) optionally with at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said meso-mordenite zeolite is synthesized from TEA or MTEA and having a mesopore surface area of greater than 30 m 2 /g and said meso-mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.

Подробнее
Номер записи: 39
31-01-2019 дата публикации

EMM-23 MATERIALS AND PROCESSES AND USES THEREOF

Номер: US20190031519A1
Автор: Afeworki Mobae, Burton Allen W., Terefenko Eugene
Принадлежит:

The disclosure is related to various modified EMM-23 materials, processes, and uses of the same. 1. A process of preparing a modified EMM-23 material comprising a composition of Formula II:{'br': None, 'sub': 2', '3', '2, 'XO:(m)YO\u2003\u2003(Formula II),'} {'br': None, 'sub': 2', '3', '2, 'XO:(t)YO\u2003\u2003(Formula III),'}, 'comprising combining a composition of Formula (III)with an agent comprising X to generate a material of Formula II;wherein m is less than 150, t is greater than or equal to 150, X is a trivalent element, and Y is a tetravalent element.2. The process of further comprises adjusting the pH of the combination of the composition of Formula III and the agent comprising X to within the range of 2.4 to 2.6.3. The process of claim 1 , wherein the agent comprises Al(NO) claim 1 , Al(SO) claim 1 , AlCl claim 1 , Fe(NO) claim 1 , or a mixture thereof.4. The process of further comprises combining additional amount of the agent comprising X to the pH adjusted combination of the composition of Formula III claim 1 , and adjusting the pH of the combination having additional amount of the agent comprising X to within the range of 2.4 to 2.6.5. The process of claim 4 , wherein the process of combining additional amount of the agent comprising X and adjusting the pH of the combination to within the range of 2.4 to 2.6 is repeated until the pH does not change when additional amount of the agent comprising X is added.6. The process of claim 4 , wherein the adjusting of the pH comprises adding a base or an acid to the combination of the composition of Formula III and the agent comprising X.7. The process of claim 6 , wherein the adjusting of the pH comprises adding a base.8. The process of claim 7 , wherein the base comprises an organic amine base.9. The process of claim 7 , wherein the base comprises ammonium hydroxide.10. The process of further comprises heating the pH adjusted combination of the composition of Formula III and the agent comprising X at a ...

Подробнее
Номер записи: 40
30-01-2020 дата публикации

ALUMINA HAVING ACIDITY AND STRUCTURE WITH A POROSITY WHICH ARE OPTIMAL

Номер: US20200030773A1
Автор: DUCREUX Olivier, NEDEZ Christophe
Принадлежит: AXENS

An alumina exhibiting a structure with a porosity such that the volume of the pores having a diameter of between 70 and 2000 Å is between 0.15 and 0.50 ml/g, and comprising at least one alkali metal (M), such that the content by weight of alkali metal, expressed as MO, is between 400 and 1500 ppm, with respect to the total weight of the alumina, and a process for the transformation of a feedstock comprising at least one alcohol into an olefinic effluent, said process comprising a stage of dehydration of said alcohol in the presence of the alumina according to the present invention, having an acidity and a structure with a porosity which are optimal. 1. Alumina exhibiting a structure with a porosity such that the volume of the pores having a diameter of between 70 and 2000 Å is between 0.15 and 0.50 ml/g , and comprising at least one alkali metal (M) , such that the content by weight of alkali metal , expressed as MO , is between 400 and 1500 ppm , with respect to the total weight of the alumina.2. Alumina according to claim 1 , in which the volume of the pores having a diameter of between 70 and 2000 Å is greater than or equal to 0.15 ml/g claim 1 , preferably greater than or equal to 0.20 ml/g claim 1 , and less than or equal to 0.50 ml/g claim 1 , preferably less than or equal to 0.40 ml/g.3. Alumine according to claim 1 , in which the content by weight of alkali metal claim 1 , expressed as MO claim 1 , is between 400 and 950 ppm claim 1 , with respect to the total weight of the alumina.4. Alumina according to claim 1 , in which the total pore volume is greater than or equal to 0.50 ml/g.5. Alumina according to claim 1 , exhibiting a volume of the pores with a diameter of greater than or equal to 70 Å claim 1 , denoted V claim 1 , of greater than or equal to 0.35 ml/g claim 1 , preferentially of greater than or equal to 0.45 ml/g claim 1 , in a preferred way of greater than or equal to 0.50 ml/g and more preferably still of greater than or equal to 0.52 ml/g.6. ...

Подробнее
Номер записи: 41
31-01-2019 дата публикации

MACROPOROUS CATALYST FOR THE PREPARATION OF ALIPHATIC AMINES

Номер: US20190031596A1
Автор: DIAZ-MAROTO CARPINTERO Javier, Leconte Philippe, OCAMPO Fabien, YE Shengyin
Принадлежит: Rhodia Operations

A process for the preparation of aliphatic amines, comprises reacting an aliphatic alcohol with an aminating agent in the presence of a catalyst. The catalyst contains copper oxide on a support made of porous alumina, wherein the porous alumina has a volume, corresponding to pores greater than 500 Å in diameter, of from 10 ml/100 g to 95 ml/100 g. 2. The process according to claim 1 , wherein the porous alumina has a volume claim 1 , corresponding to pores greater than 500 Å in diameter claim 1 , of from 20 ml/100 g to 95 ml/100 g.3. The process according to claim 1 , wherein the porous alumina has a volume claim 1 , corresponding to pores greater than 500 Å in diameter claim 1 , of from 30 ml/100 g to 95 ml/100 g.4. The process according to claim 1 , wherein the porous alumina has a specific surface area of from 10 m/g to 280 m/g.5. The process according to claim 1 , wherein the porous alumina has a specific surface area of from 50 m/g to 280 m/g.6. The process according to claim 1 , wherein the catalyst further comprises a compound of at least one element selected from Fe claim 1 , Co claim 1 , Zn claim 1 , Ni claim 1 , Cr claim 1 , Mn claim 1 , Mg claim 1 , Ba and rare earth metals.7. The process according to claim 1 , wherein the catalyst comprises from 5 wt % to 50 wt % of copper oxide claim 1 , weight percentage based on the total weight of the catalyst.9. The process according to claim 1 , wherein the aliphatic alcohol and the aminating agent are mixed together with a flow of hydrogen and the mixture is continuously introduced into a reaction zone claim 1 , wherein the molar ratio of the aliphatic alcohol/the aminating agent/the hydrogen is in the range of from 1:1:5 to 1:2:20.10. The process according to claim 9 , wherein the molar ratio of the aliphatic alcohol/the aminating agent/the hydrogen is in the range of from 1:1:5 to 1:1.2:15.11. The process according to claim 1 , wherein the reaction is carried out at a temperature of from 150° C. to 350° C.12. ...

Подробнее
Номер записи: 42
11-02-2016 дата публикации

HYDROGENATION CATALYSTS

Номер: US20160038917A1
Автор: Carrick William J., Thakur Deepak S.
Принадлежит:

Catalysts for hydrogenation comprise a catalytic material and an inorganic matrix component, wherein the catalytic material comprises: at least one metal component comprising a metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt, and iron; and an alkali metal component or an alkaline earth metal component; wherein the inorganic matrix component based on at least a silica sol component and a clay material; wherein the catalytic material and the inorganic matrix component are processed together to form the catalyst; and wherein the catalyst has a mesopore volume in the range of 50-90 by weight % of an overall pore volume. Catalysts are effective for converting acetophenone to methylphenyl carbinol and/or for converting nitrobenzene to aniline. 1. A catalyst for hydrogenation comprising a catalytic material and an inorganic matrix component , wherein the catalytic material comprises:a metal component comprising a metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt, and iron; andan alkali metal component; the inorganic matrix component is based on at least a silica sol component and a clay material;', 'the catalytic material and the inorganic matrix component are processed together to form the catalyst; and', 'the catalyst has a mesopore volume in the range of 50-90 weight % of an overall pore volume., 'wherein2. The catalyst of claim 1 , wherein the catalytic material further comprises an alkaline earth metal component.3. The catalyst of claim 2 , wherein the metal component comprises copper and is prepared from a blend of:an amount of the copper component in the range of 30 to 85% by weight of the blend;an amount of the alkali metal component in the range of 0.5 to 5.0% by weight of the blend; anda combined amount of the silica sol and clay material in the range of 15 to 70% by weight of the blend.4. The catalyst of further comprising the alkali metal component which is an alkali metal hydroxide or ...

Подробнее
Номер записи: 43
08-02-2018 дата публикации

PROCESS FOR USING IRON AND PARTICULATE CARBON CATALYST FOR SLURRY HYDROCRACKING

Номер: US20180036718A1
Автор: Bhattacharyya Alakananda, Do Phuong T. M., Houdek Stephen C., Mezza Beckay J.
Принадлежит:

A process and catalyst is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products using multifunctional catalysts. Multifunctional catalysts enable use of less expensive metal by substituting expensive metals for less expensive metals with no loss or superior performance in slurry hydrocracking. Less available and expensive ISM can be replaced effectively. 1. A process for converting heavy hydrocarbon feed into lighter hydrocarbon products comprising:mixing said heavy hydrocarbon liquid feed with catalyst and hydrogen to form a heavy hydrocarbon slurry comprising hydrocarbon liquid and catalyst particles, said catalyst comprising iron and carbon particles comprising a pore volume of at least about 0.12 cc/g, and a mean diameter of no more than about 800 microns;hydrocracking hydrocarbons in said heavy hydrocarbon slurry in the presence of hydrogen and catalyst in a hydrocracking reactor to produce a hydrocracked slurry product comprising lighter hydrocarbon products; andwithdrawing said hydrocracked slurry product from said hydrocracking reactor.2. The process of wherein the iron is impregnated on the carbon particles.3. The process of wherein the iron is provided as bauxite claim 1 , red mud claim 1 , iron sulfate claim 1 , limonite claim 1 , laterite or iron salt particles.4. The process of wherein the iron in the catalyst is no more than about 0.7 wt % in the feed.5. The process of wherein the carbon particles have a mean diameter of no more than about 150 microns.6. The process of wherein the micropore volume of the carbon particles is less than about 0.5 cc/g.7. The process of wherein the BET surface area of the carbon particles is at least about 200 m/g.8. The process of wherein the carbon particles comprise no more than about 2 wt % of the feed to the reactor.9. The process of wherein the iron is provided as bauxite and the iron in the catalyst is no more than about 0.4 wt % in the feed.10. The process of wherein the yield of TIOR in ...

Подробнее
Номер записи: 44
08-02-2018 дата публикации

PROCESS FOR USING MOLYBDENUM AND PARTICULATE CARBON CATALYST FOR SLURRY HYDROCRACKING

Номер: US20180037826A1
Автор: Bhattacharyya Alakananda, Do Phuong T. M., Houdek Stephen C., Mezza Beckay J.
Принадлежит:

A process and catalyst is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products using multifunctional catalysts. Multifunctional catalysts enable use of less expensive metal by substituting expensive metals for less expensive metals with no loss or superior performance in slurry hydrocracking. Less available and expensive ISM can be replaced effectively. 1. A process for converting heavy hydrocarbon feed into lighter hydrocarbon products comprising:mixing said heavy hydrocarbon liquid feed with catalyst and hydrogen to form a heavy hydrocarbon slurry comprising hydrocarbon liquid and catalyst particles, said catalyst comprising molybdenum and carbon particles comprising pore volume of at least 0.2 cc/g, and a mean diameter of no more than 800 microns;hydrocracking hydrocarbons in said heavy hydrocarbon slurry in the presence of hydrogen and catalyst in a hydrocracking reactor to produce a hydrocracked slurry product comprising lighter hydrocarbon products; andwithdrawing said hydrocracked slurry product from said hydrocracking reactor.2. The process of wherein the molybdenum is impregnated on the carbon particles.3. The process of wherein the molybdenum is provided as molybdenum sulfide in the hydrocracking reactor.4. The process of wherein the molybdenum in the catalyst is no more than about 200 wppm in the feed.5. The process of wherein the carbon particles have a mean diameter of no more than 150 microns.6. The process of wherein the micropore volume of the carbon particles is less than 0.5 cc/g.7. The process of wherein the BET surface area of the carbon particles is at least 200 m/g.8. The process of wherein the carbon particles comprise no more than 2 wt % in the feed.9. The process of wherein the molybdenum is no more than about 175 wppm in the feed.10. The process of wherein the yield of TIOR in the product is no more than about 3.0 wt % of the feed.11. The process of wherein the yield of mesophase in the product is no more than ...

Подробнее
Номер записи: 45
07-02-2019 дата публикации

AGGLOMERATED ODH CATALYST

Номер: US20190039050A1
Автор: Anseeuw Renee Laurel, Barnes Marie Annette, Gao Xiaoliang, Kim Yoonhee, Simanzhenkov Vasily, Styles Yipei, Sullivan David
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of NbO. 2. The agglomerated catalyst according to claim 1 , having a cumulative surface area less than 10 m/g as measured by BET and comprising less than 35 wt % of an non-antagonistic binder.3. The agglomerated catalyst according to claim 2 , having a cumulative pore volume from 0.020 to 0.20 cm3/g.4. The agglomerated catalyst according to claim 2 , having a pore size distribution less than 40% having pore width size less than 200 Angstroms.5. The agglomerated catalyst according to claim 2 , having a percent pore area distribution less than 30% and corresponding percentage of pore volume less than 10%.6. The agglomerated catalyst according to in the shape of a sphere claim 2 , rod claim 2 , ring claim 2 , or a saddle having a size from about 1.3 mm to 5 mm.7. The agglomerated catalyst according to claim 6 , wherein the NbOhydrate is acidified.8. The agglomerated catalyst according to claim 6 , wherein the NbOhydrate is treated with a base.9. The agglomerated catalyst according to claim 8 , in the shape of rods having an aspect ratio from 1 to 5/1.3 having a crush strength up to 110 N/mm.10. The agglomerated catalyst according to claim 8 , in the shape of spheres having a crush strength up to 110 N/mm.11. The agglomerated catalyst according to claim 1 , wherein the NbOhydrate is present in an amount less than 15 wt %.12. The agglomerated catalyst according to claim 1 , wherein the NbOhydrate is present in an amount greater than 15 wt %.19. The process according to claim 18 , wherein in step v) the particles are calcined at a temperature of less than 350° C.20. The process according 19 claim 18 , further comprising spheroidizing rod shaped agglomerated particles at a temperature up to 300° C. and then further calcining the resulting spheres at temperatures up to 600° C.21. ...

Подробнее
Номер записи: 46
24-02-2022 дата публикации

Selective catalyst for hydrogenolysis of ethyl-aromatics by conserving methyl-aromatics

Номер: US20220056350A1
Автор: Alexandre Jouve, Anne-Claire Dubreuil, Denis Uzio, Vincent Coupard
Принадлежит: IFP Energies Nouvelles IFPEN

The present invention relates to a hydrogenolysis process wherein a hydrocarbon-based feedstock comprising aromatic compounds having at least 8 carbon atoms is treated by means of a hydrogen feed and in the presence of a catalyst, in order to convert C2+ alkyl chains of said aromatic compounds into methyl groups and to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds, wherein the catalyst comprises a support, comprising at least one refractory oxide, and an active phase comprising nickel and molybdenum, wherein: the nickel content being between 0.1 and 25% by weight relative to the total weight of the catalyst; the molybdenum content being between 0.1 and 20% by weight relative to the total weight of the catalyst; and the catalyst comprising a molar ratio of molybdenum to nickel of between 0.2 and 0.9. The present invention also relates to said catalyst and to the process for preparing said catalyst.

Подробнее
Номер записи: 47
06-02-2020 дата публикации

NOx Trap Catalyst Support Material Composition

Номер: US20200038841A1
Автор: Fibikar Sandra, Harmening Thomas, Niemeyer Dirk, Schöneborn Marcos
Принадлежит:

The present invention relates to a method of making a support material composition comprising an Mg/Al oxide, a cerium oxide and at least another rare earth element oxide, to a support material composition and to the use of the support material composition as a nitrogen oxide storage component within a catalyst for treating exhaust gases to reduce NOx content. 1. A method of preparing a support material composition , the composition comprising two phases:a first phase comprising a Mg/Al mixed oxide; anda second phase comprising a cerium based oxide, and rare-earth element(s) based oxide other than cerium oxide, wherein the second phase is a solid-solution; the method comprising the following steps:i) preparing an aqueous suspension of a Mg/Al mixed oxide precursor;ii) preparing an aqueous solution of a cerium salt;iii) preparing an aqueous solution of one or more rare-earth element oxides salt(s) other than cerium salts;iv) combining, in any order, at least the aqueous suspension in step i), with the aqueous solution in step ii), and the aqueous solution of step iii) to form an aqueous mixture;v) dying the aqueous mixture to form a dried particulate material; andvi) calcining the dried particulate material; the cerium salts from the aqueous solution of step ii) and', 'the rare earth element salt(s) other than cerium salts from the aqueous solution of step iii) and,, 'wherein the content of the one or more rare-earth element salt(s) other than cerium is between 5 and 50 wt. %, relative to the sum of'}wherein each of the salts are calculated as their oxides.2. The method of claim 1 , wherein the Mg/Al mixed oxide precursor is prepared by hydrolysis of a mixture of corresponding alkoxides of aluminium and magnesium that form a mixture of hydrotalcite claim 1 , boehmite claim 1 , and water.3. The method of claim 1 , wherein the cerium salt comprises one or more of cerium nitrate claim 1 , ammonium cerium nitrate claim 1 , cerium sulfate claim 1 , cerium carbonate claim ...

Подробнее
Номер записи: 48
06-02-2020 дата публикации

CATALYST COMPOSITION AND CATALYTIC PROCESSES FOR PRODUCING LIQUID HYDROCARBONS

Номер: US20200038844A1
Автор: Amouyal Meital, Herskowitz Mordechay, Landau Miron, Vidruk Roksana
Принадлежит: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY

The invention relates to potassium-promoted, Fe(FeAl)O[0.3≤y≤0.7] silica-containing extrudates, processes for the preparation of the extrudates with the aid of colloidal silica, and the use of the extrudates to catalyze processes for producing liquid hydrocarbons. 1) Potassium-promoted Fe(FeAl)O[0.3 Подробнее

Номер записи: 49
06-02-2020 дата публикации

OXIDATIVE DEHYDROGENATION CATALYSTS

Номер: US20200038847A1
Автор: Barnes Marie, de Wit Perry, Gao Xiaoliang, Kim Yoonhee, Simanzhenkov Vasily, Sullivan David
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula: 1. An oxidative dehydrogenation catalyst comprising a mixed metal oxide having the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.17', '0.10-0.20', 'd, 'MoVTeNbO'} d is a number to satisfy the valence of the oxide, and', 'the oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2θ degrees) at 22±0.2, 27±0.2, 28.0±0.2, and 28.3±0.1., 'wherein2. The oxidative dehydrogenation catalyst of claim 1 , wherein the catalyst is prepared by a process comprising wet ball milling a pretreated oxidative dehydrogenation catalyst having the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.17', '0.10-0.20', 'd, 'MoVTeNbO'}wherein d is a number to satisfy the valence of the oxide.3. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 27±0.2 to the peak at 22±0.2 is 0.55:1 to 0.65:1.4. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 27±0.2 to the peak at 22±0.2 is about 0.60:1.5. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 28.3±0.1 to the peak at 27±0.2 is 0.50:1 to 0.80:1.6. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 28.3±0.1 to the peak at 27±0.2 is 0.60:1 to 0.70:1.7. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 28.3±0.1 to the peak at 27±0.2 is about 0.65:1.8. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 28.0±0.2 to the peak at 28.2±0.1 is 0.8:1 to 1.1:1.9. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 28.0±0.2 to the peak at 28.2±0.1 is 0.9:1 to 1:1.10. The oxidative dehydrogenation catalyst of claim 1 , wherein the aspect ratio of the peak at 28.2±0.1 to the peak at 28.4 ...

Подробнее
Номер записи: 50
06-02-2020 дата публикации

PRODUCTION OF HYDROTHERMALLY STABLE CHA ZEOLITES

Номер: US20200038849A1
Автор: MODEN Bjorn, PACHECO Joshua
Принадлежит: PQ CORPORATION

A method of producing hydrothermally stable chabazite (CHA) zeolites is disclosed. The disclosed method is based on the use of reaction mixtures that (1) are essentially void of alkali metal cations and (2) contain the N,N,N-trimethyl-1-adamantyl ammonium (TMAda+) organic as the sole OSDA. The disclosed method results in a higher crystalline CHA zeolite that exhibits hydrothermal stability. There is also disclosed a zeolite material having a CHA-type framework structure made by the disclosed method. A method of selective catalytic reduction of NOx in exhaust gas using the material described herein is also disclosed. 1. A method of making a microporous crystalline material from reaction mixtures that (1) are essentially void of alkali metal cations and (2) contain the N ,N ,N-trimethyl-1-adamantyl ammonium (TMAda+) organic as the sole OSDA , the method comprising:mixing sources of alumina, silica, water, TMAdaOH and optionally a chabazite seed material to form a gel;heating the gel in a vessel at a temperature ranging from 80° C. to 200° C. to form a crystalline chabazite product; andcalcining the product to produce an aluminosilicate zeolite having a CHA structure, and a silica-to-alumina ratio (SAR) ranging from 20 to 100.2. The method of claim 1 , wherein the reaction mixtures with (A) molar composition 1 SiO:w AlO:x TMAdaOH:y HO claim 1 , where w=0.010-0.050 claim 1 , x=0.04-0.20 claim 1 , y=1-25 and (B) trace concentrations of alkali cations.3. The method of claim 2 , wherein w ranges from 0.014-0.050.4. The method of claim 2 , wherein x ranges from 0.05-0.15.5. The method of claim 2 , wherein y ranges from 5-20.6. The method of claim 1 , wherein the aluminosilicate zeolite has a silica-to-alumina ratio (SAR) ranging from 20-70.7. The method of claim 1 , further comprising adding to the microporous crystalline material at least one metal chosen from copper claim 1 , iron or combinations thereof to form a metal containing chabazite.8. The method of claim 7 , ...

Подробнее
Номер записи: 51
18-02-2021 дата публикации

METAL CATALYST SYNTHESIS AND ACID/METAL BIFUNCTIONAL CATALYST SYSTEMS THEREOF

Номер: US20210046460A1
Автор: Bai Chuansheng, Cunningham Majosefina, Daaka Jihad M., Kamakoti Preeti, Ramkrishnan Aruna
Принадлежит:

Methods of producing metal catalysts can include mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution having a pH of about 2.5 to about 4.0; mixing the metal catalyst precursor solution and a basic solution having a pH of about 10 to about 13 to produce a mixture with a pH of about 6 to about 7 and a precipitate; producing a powder from the precipitate; and calcining the powder to produce a metal catalyst. Such metal catalysts may be useful in producing bifunctional catalyst systems that are useful in, among other things, converting syngas to dimethyl ether in a single reactor. 1. A method comprising:mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution having a pH of about 2.5 to about 4.0;mixing the metal catalyst precursor solution and a basic solution having a pH of about 10 to about 13 to produce a mixture with a pH of about 6 to about 7 and a precipitate;producing a powder from the precipitate; andcalcining the powder to produce a metal catalyst.2. The method of claim 1 , wherein producing the powder from the precipitate comprises:washing the precipitate;drying the precipitate; andgrinding the precipitate, wherein the powder comprises 5 wt % or less of the water.3. The method of claim 1 , wherein the metal catalyst precursor solution is at 40° C. to 90° C. when mixing with the basic solution.4. The method of claim 1 , wherein the basic solution comprises sodium carbonate claim 1 , sodium hydroxide claim 1 , ammonia hydroxide claim 1 , ammonia carbonate claim 1 , sodium hydrogen bicarbonate claim 1 , and any combination thereof.5. The method of claim 1 , wherein the two or more metal salts comprise a first metal salt that is a salt of a first metal selected from the group consisting of Cu claim 1 , Cr claim 1 , Ag claim 1 , Au claim 1 , Ru claim 1 , Rh claim 1 , Pd claim 1 , Re claim 1 , Os claim 1 , Ir claim 1 , and Pt and a second metal salt that is a ...

Подробнее
Номер записи: 52
18-02-2021 дата публикации

METAL CATALYSTS WITH LOW -ALKALI METAL CONTENT AND ACID/METAL BIFUNCTIONAL CATALYST SYSTEMS THEREOF

Номер: US20210046461A1
Автор: Bai Chuansheng, Cunningham Majosefina, Daaka Jihad M., Kamakoti Preeti, Kovvali Anjaneya S., Lee Anita S., Ramkrishnan Aruna
Принадлежит:

Methods of producing metal catalysts can include mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution; mixing the metal catalyst precursor solution and an alkali metal buffer solution to produce a precipitate; ion exchanging the alkali metal in the precipitate for a non-alkali cation to produce a low-alkali metal precipitate comprising 3 wt % or less alkali metal by weight of the precipitate on a dry basis; producing a powder from the low-alkali metal precipitate; and calcining the powder to produce a metal catalyst. Such metal catalysts may be useful in producing bifunctional catalyst systems that are useful in, among other things, converting syngas to dimethyl ether in a single reactor 1. A method comprising:mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution;mixing the metal catalyst precursor solution and an alkali metal buffer solution to produce a precipitate;ion exchanging the alkali metal in the precipitate for a non-alkali cation to produce a low-alkali metal precipitate comprising 3 wt % or less alkali metal by weight of the precipitate on a dry basis;producing a powder from the low-alkali metal precipitate; andcalcining the powder to produce a metal catalyst.2. The method of claim 1 , wherein ion exchanging comprises contacting the precipitate with the non-alkali cation.3. The method of claim 1 , wherein ion exchanging comprises dialysis.4. The method of claim 1 , wherein ion exchanging comprises electrochemical ion exchange.5. The method of claim 1 , wherein producing the powder from the low-alkali metal precipitate comprises:washing the low-alkali metal precipitate;drying the low-alkali metal precipitate; andgrinding the low-alkali metal precipitate, wherein the powder comprises 5 wt % or less of the water.6. The method of claim 1 , wherein the alkali metal buffer solution is at 40° C. to 90° C. when mixing with the metal catalyst precursor ...

Подробнее
Номер записи: 53
18-02-2021 дата публикации

ACID/METAL BIFUNCTIONAL CATALYSTS PRODUCED BY SLURRY METHODS

Номер: US20210046462A1
Автор: Bai Chuansheng, Cunningham Majosefina, Daaka Jihad M., Kamakoti Preeti, Kovvali Anjaneya S., Lee Anita S., Ramkrishnan Aruna
Принадлежит:

A method of producing a acid/metal bifunctional catalyst may include: mixing an acid catalyst, a metal catalyst, and a fluid to produce a slurry, wherein the acid catalyst is present at 50 wt % or less relative to a total catalyst weight in the slurry; heating the slurry; producing a powder from the slurry; and calcining the powder to produce the acid/metal bifunctional catalyst. Such acid/metal bifunctional catalyst would be useful in the direct conversion of syngas to dimethyl ether as well as other reactions. 1. A method comprising:mixing an acid catalyst, a metal catalyst, and a fluid to produce a slurry, wherein the acid catalyst is present at 50 wt % or less relative to a total catalyst weight in the slurry;heating the slurry;drying the slurry produce a dried slurry;producing a powder from the dried slurry; andcalcining the powder to produce an acid/metal bifunctional catalyst.2. The method claim 1 , wherein producing the powder from the dried slurry comprises:grinding the dried slurry to produce a powder, wherein the powder comprises 5 wt % or less of the fluid.3. The method of claim 1 , wherein mixing is maintained during heating.4. The method of claim 1 , wherein mixing is performed for 30 minutes to 3 hours.5. The method of claim 1 , wherein heating is to a temperature within 20° C. of a boiling point of the fluid.6. The method of claim 1 , wherein the acid catalyst is selected from the group consisting of a zeolite claim 1 , an ion exchanged zeolite claim 1 , a molecular sieve claim 1 , a metal oxide claim 1 , and any combination thereof.7. The method of claim 1 , wherein the metal catalyst is a M1/M2/Al catalyst claim 1 , wherein M1 is selected from the group consisting of Cu claim 1 , Cr claim 1 , Ag claim 1 , Au claim 1 , Ru claim 1 , Rh claim 1 , Pd claim 1 , Re claim 1 , Os claim 1 , Ir claim 1 , Pt claim 1 , and any combination thereof claim 1 , wherein M2 is selected from the group consisting of Ti claim 1 , V claim 1 , Cr claim 1 , Mn claim 1 , Fe ...

Подробнее
Номер записи: 54
18-02-2021 дата публикации

Process for Production of Attrition Stable Granulated Material

Номер: US20210046468A1
Автор: Friedrich Marco, Schrage Christian
Принадлежит:

The present invention relates to granulated particles with improved attrition and a method for producing granulated particles by fluidized bed granulation of inorganic particles wherein particles of reduced particle size are fed into a fluldized-bed granulation reactor thereby producing granulated particles with improved attrition. 1. A method of producing granulated particles in a fluidized-bed granulation reactor , the method comprising feeding inorganic particles dispersed in a dispersion medium into the fluidized-bed granulation reactor , the inorganic particles in the dispersion medium having a Dvalue of between 1 μm and 15 μm.2. The method of wherein the dispersion medium comprising inorganic particles dispersed therein is sprayed into a process chamber of the fluidized-bed granulation reactor while heated process gas flows through the process chamber from the bottom to the top.3. The method of claim 1 , wherein the Dvalue of the inorganic particles in the dispersion medium fed into the fluidized-bed granulation reactor is between 1 μm and 10 μm.4. The method of claim 1 , wherein the inorganic particles include compounds of alkaline earth metals claim 1 , rare earth elements claim 1 , platinum group elements claim 1 , iron group elements claim 1 , Cu claim 1 , Ag claim 1 , Au claim 1 , Zn claim 1 , Al claim 1 , In claim 1 , Sn claim 1 , Si claim 1 , P claim 1 , V claim 1 , Nb claim 1 , Mo claim 1 , W claim 1 , Mn claim 1 , Re claim 1 , Ti claim 1 , Zr or mixtures thereof.5. The method of claim 1 , wherein the inorganic particles are particles of alumina claim 1 , silica claim 1 , or a mixture thereof.6. The method of claim 1 , wherein the dispersion medium comprises water or consists of water.7. The method of claim 1 , wherein a stabilizer is added to the dispersion medium.8. The method of claim 1 , including the initial step of milling the inorganic particles in the dispersion medium to a Dvalue between 1 μm and 15 μm before entering into the fluidized-bed ...

Подробнее
Номер записи: 55
16-02-2017 дата публикации

HYDROCRACKING CATALYST, PROCESS FOR PREPARING THE SAME AND USE THEREOF

Номер: US20170043323A1
Автор: DU Yanze, GUAN Minghua, Liu Chang, WANG Fenglai
Принадлежит:

The present invention relates to a hydrocracking catalyst, a process for preparing the same and use thereof The present catalyst comprises a cracking component and a hydrogenation component, wherein the cracking component comprises from 0 to 20 wt. % of a molecular sieve and from 20 wt. % to 60 wt. % of an amorphous silica-alumina, the hydrogenation component comprises at least one hydrogenation metal in a total amount of from 34 wt. % to 75 wt. % calculated by the mass of oxides, each amount is based on the total weight of the catalyst. The present catalyst is prepared by directly mixing an acidic component powder material with an impregnating solution, impregnating, filtering, drying, molding, and drying and calcining. 1. A process for preparing a hydrocracking catalyst , comprising the steps of(1) homogeneously mixing a precursor for an amorphous silica-alumina with an optional molecular sieve and an optional alumina;(2) formulating an impregnating solution comprising at least one hydrogenation metal;(3) impregnating the mixed powder in step (1) with the impregnating solution in step (2); and(4) filtering, drying, pulverizing, adding an adhesive or a peptizing agent, molding, drying, and calcining to obtain the hydrocracking catalyst.2. The process according to claim 1 , wherein the precursor for the amorphous silica-alumina is an amorphous gelatinous silica-alumina dry powder prepared by a method comprising(1) conducting a neutralization and gelatinization reaction of an acidic aluminum salt solution with a mixed solution of alkaline sodium silicate and sodium aluminate at a temperature ranging from 20° C. to 80° C. and a pH value ranging from 4.0 to 9.5;(2) adding at least one organosilicon source after gelatinization, wherein the at least one organosilicon source is chosen from organic silicon oils or silicon esters, the at least one organosilicon is added in an amount ranging from 5% to 40% relative to the total silicon amount present in the amorphous ...

Подробнее
Номер записи: 56
03-03-2022 дата публикации

METHOD

Номер: US20220062866A1
Автор: REES Claire, Sharratt Andrew
Принадлежит:

A method for activating a chromia-based catalyst for fluorination and/or hydrofluorination comprises the steps of: a) optionally drying the catalyst at a temperature of from 100° C. to 400° C.; b) treating the catalyst with a composition comprising HF at a temperature of from 100° C. to about 500° C.; c) treating the catalyst with a composition comprising an oxidant and optionally HF at a temperature of from about 100° C. to about 500° C. 1. A method for activating a catalyst comprising the steps of:a) optionally drying the catalyst at a temperature of from 100° C. to 400° C.;b) treating the catalyst with a composition comprising HF at a temperature of from 100° C. to about 500° C.;c) treating the catalyst with a composition comprising an oxidant and optionally HF at a temperature of from about 100° C. to about 500° C.2. The method according to claim 1 , wherein the oxidant is selected from air claim 1 , oxygen (O) claim 1 , chlorine (Cl) claim 1 , chlorine monofluoride (ClF) claim 1 , nitrogen trifluoride (NF).3. The method according to claim 1 , wherein the molar ratio of HF to oxidant is from 1:20 to 20:1.4. The method according to claim 3 , wherein the molar ratio of HF to oxidant is from 15:1 to 1:3 claim 3 , more preferably from 11:1 to 1:1.5. The method according to claim 1 , wherein the catalyst is a chromia catalyst.6. The method according to claim 5 , wherein the catalyst is a chromia catalyst comprising zinc or a compound thereof claim 5 , such as zinc oxide.7. The method according to claim 6 , wherein zinc oxide is present in the catalyst at a level of from 1% wt to 10% wt claim 6 , more preferably from 2% wt to 8% wt claim 6 , more preferably from 3% wt to 7% wt based on the total weight of the catalyst.8. The method according to claim 1 , wherein step (b) and/or (c) is carried out at a pressure of from 0.1 bara to 20 bara claim 1 , preferably from 3 bara to 10 bara.9. The method according to claim 1 , wherein step (b) and/or (c) is carried out over an ...

Подробнее
Номер записи: 57
03-03-2022 дата публикации

CARBON-BASED, PRECIOUS METAL-TRANSITION METAL COMPOSITE CATALYST AND PREPARATION METHOD THEREFOR

Номер: US20220062868A1
Автор: Jeon Bong Sik, KIM Jeong Kwon, Myeong Wan Jae, YOOK Sun Woo
Принадлежит:

The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution. Provided is a method for preparing a carbon-based precious metal-transition metal composite catalyst, wherein, in the carbon-based precious metal-transition metal composite catalyst, the precious metal is included in an amount of 10-20 parts by weight, and the transition metal is included in an amount of 10-20 parts by weight based on 100 parts by weight of the composite catalyst, and thus a total amount of the precious metal-transition metal is 20-40 parts by weight based on 100 parts by weight of the composite catalyst.

Подробнее
Номер записи: 58
03-03-2022 дата публикации

MOLECULAR SIEVE SSZ-123, ITS SYNTHESIS AND USE

Номер: US20220062877A1
Автор: Xie Dan
Принадлежит:

An aluminum-rich molecular sieve material of MFS framework type, designated SSZ-123, is provided. SSZ-123 can be synthesized using 1-ethyl-1-[5-(triethylammonio)pentyl]piperidinium cations as a structure directing agent. SSZ-123 may be used in organic compound conversion and/or sorptive processes.

Подробнее
Номер записи: 59
14-02-2019 дата публикации

OXIDATION CATALYST FOR LEAN COMPRESSED NATURAL GAS ENGINE

Номер: US20190046958A1
Автор: An Limiao, Gerlach Olga, ROTH Stanley, Schulman Emily, Sunderman Andreas, Wei Xinyi
Принадлежит:

The present invention provides an oxidation catalyst composition suitable for at least partial conversion of gaseous hydrocarbon emissions, e.g., methane. The oxidation catalyst composition includes at least one platinum group metal (PGM) component supported onto a porous zirconia-containing material that provides an effect on hydrocarbon conversion activity. The porous zirconia-containing material is at least 90% by weight in the monoclinic phase. Furthermore, the PGM component can comprise at least one platinum group metal in the form of colloidally deposited nanoparticles. The oxidation catalyst composition can be used in the treatment of emissions from lean compressed natural gas engines. 1. A catalyst composition configured for hydrocarbon conversion in a hydrocarbon-containing stream , the catalyst composition comprising a platinum group metal (PGM) component supported on a zirconia-containing material , the zirconia being at least 90% by weight in a monoclinic phase.2. The catalyst composition of claim 1 , wherein the platinum group metal (PGM) component is selected from the group consisting of palladium claim 1 , platinum claim 1 , and combinations thereof.3. The catalyst composition of claim 1 , wherein the composition comprises about 0.01% to about 6.0% by weight of platinum group metal (PGM) component calculated as metal and based on the total weight of the combined PGM and zirconia-containing material.4. The catalyst composition of claim 2 , wherein the platinum group metal (PGM) component comprises platinum and palladium present in a weight ratio of about 1:1 to about 0.1:1.5. The catalyst composition of claim 4 , wherein one or both of the palladium and platinum is in the form of colloidally deposited nanoparticles.6. The catalyst composition of claim 1 , wherein the zirconia-containing material comprises of no more than 10% tetragonal phase.7. The catalyst composition of claim 1 , wherein the zirconia-containing material has a pore volume of about 0. ...

Подробнее
Номер записи: 60
22-02-2018 дата публикации

HYDROGENATION AND ETHYNYLATION CATALYSTS

Номер: US20180050325A1
Автор: Deutsch Keenan Lee, MADON Rostam J.
Принадлежит:

A process for preparing a catalyst includes impregnating a metal oxide carrier with an aqueous solution to form an impregnated carrier; drying the impregnated carrier to form a dried, impregnated carrier; and heat-treating the dried, impregnated carrier in air to form the catalyst; wherein: the aqueous solution includes a copper salt; and from about 3 wt % to about 15 wt % of a C-Cmultifunctional carboxylic acid; and the catalyst includes from about 5 wt % to about 50 wt % copper oxide. 1. A process for forming a catalyst for hydrogenation , dehydrogenation , hydrogenolysis , or ethynylation , the process comprising:impregnating a metal oxide carrier with an aqueous solution to form an impregnated carrier;drying the impregnated carrier to form a dried, impregnated carrier; andheat-treating the dried, impregnated carrier to form the catalyst; [ a copper salt; and', {'sub': 3', '6, 'from about 1 wt % to about 15 wt % of a C-Cmultifunctional carboxylic acid; and'}], 'the aqueous solution comprises, 'the catalyst comprises from about 5 wt % to about 50 wt % copper oxide., 'wherein2. The process of claim 1 , wherein the copper salt comprises copper nitrate claim 1 , copper sulfate claim 1 , copper acetate claim 1 , copper chloride claim 1 , or copper citrate.3. The process of claim 1 , wherein the catalyst is an ethynylation catalyst and the aqueous solution further comprises a bismuth salt and the catalyst comprises up to about 5 wt % BiO.4. The process of claim 3 , wherein the bismuth salt comprises bismuth nitrate claim 3 , bismuth sulfate claim 3 , bismuth acetate claim 3 , bismuth chloride claim 3 , or bismuth citrate.5. The process of claim 1 , wherein the multifunctional carboxylic acid is a C-Cmulti-carboxylic acid.67-. (canceled)8. The process of claim 1 , wherein the catalyst is a hydrogenation claim 1 , dehydrogenation claim 1 , or hydrogenolysis catalyst and the aqueous solution consists essentially of the copper salt claim 1 , from about 1 wt % to about 15 ...

Подробнее
Номер записи: 61
22-02-2018 дата публикации

PROCESS FOR USING AND COMPOSITION OF IRON, MOLYBDENUM AND PARTICULATE CARBON CATALYST FOR SLURRY HYDROCRACKING

Номер: US20180051219A1
Автор: Bhattacharyya Alakananda, Do Phuong T. M., Houdek Stephen C., Mezza Beckay J.
Принадлежит:

A process and catalyst is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products using multifunctional catalysts. Multifunctional catalysts enable use of less expensive metal by substituting expensive metals for less expensive metals with no loss or superior performance in slurry hydrocracking. Less available and expensive ISM can be replaced effectively. 1. A process for converting heavy hydrocarbon feed into lighter hydrocarbon products comprising:mixing said heavy hydrocarbon liquid feed with catalyst and hydrogen to form a heavy hydrocarbon slurry comprising hydrocarbon liquid and catalyst particles, said catalyst comprising iron, molybdenum and carbon particles;hydrocracking hydrocarbons in said heavy hydrocarbon slurry in the presence of hydrogen and catalyst in a hydrocracking reactor to produce a hydrocracked slurry product comprising lighter hydrocarbon products; andwithdrawing said hydrocracked slurry product from said hydrocracking reactor.2. The process of wherein the iron is impregnated on the carbon particles.3. The process of wherein the iron is provided as bauxite claim 1 , red mud claim 1 , iron sulfate claim 1 , limonite claim 1 , laterite or iron salt particles.4. The process of wherein the iron in the catalyst is no more than about 1.0 wt % in the feed.5. The process of wherein the carbon particles have a mean diameter of no more than about 150 microns.6. The process of wherein the carbon particles have a pore volume of at least about 0.18 cc/g and a mean diameter of no more than about 800 microns.7. The process of wherein the carbon particles comprise no more than about 2 wt % of the feed to the reactor.8. The process of wherein the molybdenum is in an oil soluble form and is mixed with the hydrocarbon liquid feed.9. The process of wherein the molybdenum in the catalyst is no more than about 100 wppm in the feed.10. The process of wherein the yield of TIOR in the product is no more than about 4.0 wt % of the feed when ...

Подробнее
Номер записи: 62
10-03-2022 дата публикации

METHOD FOR GENERATING NEW FAUJASITE ZEOLITES

Номер: US20220073359A1
Автор: "DHalluin Martin", VERBOEKEND Danny
Принадлежит: Zeopore Technologies NV

The invention is broadly drawn to a process to introduce mesoporosity in faujasite zeolites with Si/Al<5 and unit cell sizes below 24.58 Angstrom by an inventive sequence of acid and base treatments, yielding superior physico-chemical and catalytic properties compared to the materials prepared according to the teachings known in the state of the art. Part of the invention relates to the acid step which is executed in the presence of a salt of which the anion is able to form multi-ligand complexes with aluminum, and of which a specific amount of cations are protonic (ca. 90% to 20% of the total cations with −3 Подробнее

Номер записи: 63
03-03-2016 дата публикации

HYDRODESULFURIZATION CATALYST FOR DIESEL OIL AND HYDROTREATING METHOD FOR DIESEL OIL

Номер: US20160059223A1
Автор: FUJIKAWA Takashi, Hashimoto Minoru, NAKAJIMA Nobumasa, YOSHINARI Motoki
Принадлежит:

A hydrodesulfurization catalyst supports one or more metals selected from elements in Group 6 of the Periodic table, one or more metals selected from elements in Group 9 or Group 10 of the same, phosphorus, and an organic acid on a composite oxide support having a specific content of both alumina and HY zeolite having a specific crystallite size. The catalyst includes 10% to 40% by mass of the Group 6 metal, 1% to 15% by mass of the Group 9 or Group 10 metal, and 1.5% to 8% by mass of phosphorus in terms of an oxide based on the catalyst. The catalyst includes 0.8% to 7% by mass of carbon derived from an organic acid and for 1 mole of the Group 9 or Group 10 element metal in terms of an element based on the catalyst, and includes 0.2 to 1.2 moles of the organic acid. 1. A hydrodesulfurization catalyst for diesel oil which supports one or more metals selected from the group consisting of elements in Group 6 of the long periodic table , one or more metals selected from the group consisting of elements in Group 9 or 10 of the long periodic table , phosphorus , and an organic acid on a composite oxide support containing 80% by mass to 99.5% by mass of alumina , and 0.5% by mass to 20% by mass of HY zeolite , the catalyst comprising:10% by mass to 40% by mass of one or more metals selected from the group consisting of elements in Group 6 in terms of an oxide based on the catalyst;1% by mass to 15% by mass of one or more metals selected from the group consisting of elements in Group 9 or 10 in terms of an oxide based on the catalyst;1.5% by mass to 8% by mass of phosphorus in terms of an oxide based on the catalyst;0.8% by mass to 7% by mass of carbon derived from the organic acid in terms of an element based on the catalyst; and0.2 moles to 1.2 moles of the organic acid per 1 mole of one or more metals selected from the group consisting of elements in Group 9 or 10 of the long periodic table,{'sup': 2', '2, 'wherein a specific surface area measured by a nitrogen ...

Подробнее
Номер записи: 64
21-02-2019 дата публикации

Steam-Less Process for Converting Butenes to 1,3-Butadiene

Номер: US20190055175A1
Автор: Alshafei Faisal H., Kaminsky Mark P., Khokhar Munir D., Shaikh Sohel K., SUN Miao, Zhang Zhonglin
Принадлежит:

Processes, systems, and catalysts for the conversion of 2-butene to 1,3-butaidene without the use of steam or, in some embodiments, with a reduced use of steam as compared to prior art processes are provided. The catalyst includes tungsten trioxide (WO) on an inorganic support includes activated magnesium oxide (MgO) and may be referred to as a “dual catalyst” or a “co-catalyst.” Embodiments of the catalyst. A process for the production of 1,3-butadiene may include contacting a feed stream of 2-butene with a WO-inorganic support catalyst or a MgO and WO-inorganic support catalyst and may be performed without steam in the feed stream. 1. A method for producing 1 ,3-butadiene , comprising:receiving a feed stream comprising 2-butene;contacting the feed stream with a catalyst in the presence of an oxidant to convert the 2-butene to 1-3-butadiene, the catalyst comprising tungsten oxide impregnated on an inorganic support.2. The method of claim 1 , wherein the feed stream does not include steam.3. The method of claim 1 , wherein the oxidant comprises air.4. The method of claim 1 , wherein the contacting is performed at a temperature in the range of 400° C. to 550° C.5. The method of claim 1 , wherein the feed stream comprises 1-butene.6. The method of claim 1 , wherein the inorganic support comprises silica.7. The method of claim 1 , wherein the catalyst comprises magnesium oxide.8. The method of claim 7 , wherein the magnesium oxide has a surface area in the range of 30 meters-squared/gram (m/g) to 200 m/g.9. The method of claim 7 , wherein the catalyst comprises a first layer of the tungsten oxide impregnated on the inorganic support claim 7 , a second layer of the tungsten oxide impregnated on the inorganic support claim 7 , and a layer of the magnesium oxide positioned between the first layer and the second layer.10. The method of claim 7 , wherein the catalyst comprises a layer of the magnesium oxide disposed on a layer of the tungsten oxide impregnated on the ...

Подробнее
Номер записи: 65
02-03-2017 дата публикации

TiO2 based catalyst precursor material, production thereof and use thereof

Номер: US20170056855A1
Автор: Grothe Sonja, Spitzwieser Christian
Принадлежит: Huntsman P&A Germany GmbH

A TiO-based catalyst precursor material in powder form includes TiOparticles with the formula TiO(OH)(x=0-1). The particles are coated with one or more auxiliary shaping agents and after coating and drying have a specific surface area of at least 150 m/g. The material has a content of 1) 50-99.5% by weight of the titanium-oxygen compound with the general formula TiO(OH), wherein x=0 to 1, or mixtures thereof, wherein the crystalline phases of the titanium-oxygen compound are in the anatase form, and 2) 0.5-50% by weight of an auxiliary shaping agent or mixtures thereof, which evaporates, sublimates and/or decomposes upon heating to temperatures below the transformation temperature from anatase to rutile, wherein the % by weight are relative to the total weight of the dried catalyst precursor material. 1. TiO-based catalyst precursor material in powder form containing TiOparticles with the formula TiO(OH)(x=0-1) , wherein the particles are coated with one or more auxiliary shaping agents , and after coating and drying have a specific surface area of at least 150 m/g and comprise:{'sub': (2-x)', '2x, '50-99.5% by weight of the titanium-oxygen compound with the general formula TiO(OH), wherein x=0 to 1, or mixtures thereof, wherein the crystalline phases of the titanium-oxygen compound are in the anatase form,'}0.5-50% by weight of an auxiliary shaping agent or mixtures thereof, which evaporates, sublimates and/or decomposes upon heating to temperatures from below the transformation temperature from anatase to rutile, 915° C., wherein the % by weight are relative to the total weight of the dried catalyst precursor material.2. TiO-based catalyst precursor material in powder form according to claim 1 , comprising:{'sub': (2-x)', '2x, '70-99.5% by weight of the titanium-oxygen compound with general formula TiO(OH)wherein x=0, or mixtures thereof, and'}0.5-30% by weight of the auxiliary shaping agent, wherein the % by weight are relative to the total weight of the dried ...

Подробнее
Номер записи: 66
04-03-2021 дата публикации

MOLYBDENUM BASED CATALYST SUPPORTED ON TITANIA-MODIFIED ZEOLITE

Номер: US20210060536A1
Автор: AWADH TAWFIK ABDO SALEH, ELSAYED Islam Ali
Принадлежит: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

A supported catalyst having catalytic species including molybdenum as well as cobalt and/or vanadium as a promoter disposed on a support material containing zeolite modified with titanium dioxide. Various methods of preparing and characterizing the supported catalyst are disclosed. The utilization of the catalyst in treating a hydrocarbon feedstock containing sulfur compounds (e.g. dibenzothiophene) to produce a desulfurized hydrocarbon stream is also provided. 1: A Mo-based hydrodesulfurization catalyst , comprising:a support material comprising a titania-modified zeolite; anda catalytic material disposed on the support material,wherein:the catalytic material comprises molybdenum and at least one promoter;the support material has a weight ratio of zeolite to titania in a range of 5:1 to 25:1; andthe Mo-based hydrodesulfurization catalyst has a molybdenum content in a range of 10-25 wt % relative to a total weight of the Mo-based hydrodesulfurization catalyst.2: The Mo-based hydrodesulfurization catalyst of claim 1 , wherein the support material has a Si:Al weight ratio of 2:1 to 3:1 claim 1 , and a Si:Ti weight ratio of 3:2 to 7:1.3: The Mo-based hydrodesulfurization catalyst of claim 1 , wherein the at least one promoter comprises cobalt claim 1 , vanadium claim 1 , or both.4: The Mo-based hydrodesulfurization catalyst of claim 3 , wherein the at least one promoter comprises cobalt claim 3 , and wherein the Mo-based hydrodesulfurization catalyst has a cobalt content in a range of 1-5 wt % relative to a total weight of the Mo-based hydrodesulfurization catalyst.5: The Mo-based hydrodesulfurization catalyst of claim 3 , wherein the at least one promoter comprises vanadium claim 3 , and wherein the Mo-based hydrodesulfurization catalyst has a vanadium content in a range of 0.5-4 wt % relative to a total weight of the Mo-based hydrodesulfurization catalyst.6: The Mo-based hydrodesulfurization catalyst of claim 3 , wherein the at least one promoter comprises cobalt and ...

Подробнее
Номер записи: 67
20-02-2020 дата публикации

Porous shaped metal-carbon products

Номер: US20200055029A1
Автор: Alfred Hagemeyer, Elif Ispir GÜRBÜZ, Eric L. Dias, Guang Zhu, James A.W. Shoemaker, Valery Sokolovskii
Принадлежит: Archer Daniels Midland Co

The present invention provides a porous metal-containing carbon-based material that is stable at high temperatures under aqueous conditions. The porous metal-containing carbon-based materials are particularly useful in catalytic applications. Also provided, are methods for making and using porous shaped metal-carbon products prepared from these materials.

Подробнее
Номер записи: 68
20-02-2020 дата публикации

Hydrogenation and ethynylation catalysts

Номер: US20200055032A1
Автор: Keenan Lee DEUTSCH, Rostam J. Madon
Принадлежит: BASF Corp

A process for preparing a catalyst includes impregnating a metal oxide carrier with an aqueous solution to form an impregnated carrier; drying the impregnated carrier to form a dried, impregnated carrier; and heat-treating the dried, impregnated carrier in air to form the catalyst; wherein: the aqueous solution includes a copper salt; and from about 3 wt % to about 15 wt % of a C3-C6 multifunctional carboxylic acid; and the catalyst includes from about 5 wt % to about 50 wt % copper oxide.

Подробнее
Номер записи: 69
28-02-2019 дата публикации

Low-Temperature Oxidation Catalyst With Particularly Marked Hydrophobic Properties For The Oxidation Of Organic Pollutants

Номер: US20190060832A1
Автор: Althoff Roderik, Endler Mika, KLOSE FRANK, Mueller Patrick, Reznikov Grigory, Schuschke Margit, Tissler Arno
Принадлежит: Clariant Produkte (Deutschland) GmbH

The present invention relates to a catalyst comprising a macroporous noble metal-containing zeolite material and a porous SiO-containing binder, wherein the catalyst has a proportion of micropores of more than 70%, based on the total pore volume of the catalyst. The invention is additionally directed to a process for preparing the catalyst and to the use of the catalyst as an oxidation catalyst. 19.-. (canceled)10. Method of producing a catalyst according to , comprising the following steps:a) introducing a noble metal precursor compound into a microporous zeolite material;b) calcining the zeolite material loaded with the noble metal precursor compound;{'sub': '2', 'c) mixing the zeolite material loaded with the noble metal compound with a porous SiO-containing binder and a solvent;'}d) drying and calcining the mixture comprising the zeolite material loaded with the noble metal compound and the binder.11. Method according to claim 10 , wherein the mixture obtained in step c) is applied to a support.12. (canceled) The present invention relates to a catalyst comprising a microporous noble metal-containing zeolite material and a porous SiO-containing binder, wherein the catalyst has a proportion of micropores of more than 70%, relative to the total pore volume of the catalyst. The invention is additionally directed to a method of producing the catalyst as well as to the use of the catalyst as oxidation catalyst.Purifying exhaust gases by means of catalysts has been known for some time. For example, the exhaust gases from combustion engines are purified with so-called three-way catalysts (TWC). The nitrogen oxides are reduced with reductive hydrocarbons (HC) and carbon monoxide (CO).Likewise, the exhaust gases from diesel engines are post-treated with catalysts. Here, carbon monoxide, unburnt hydrocarbons, nitrogen oxides and soot particles, for example, are removed from the exhaust gas. Unburnt hydrocarbons which are to be treated catalytically include paraffins, ...

Подробнее
Номер записи: 70
17-03-2022 дата публикации

ZIRCONIA-BASED AQUEOUS NP-DISPERSION FOR USE IN COATING FILTER SUBSTRATES

Номер: US20220080393A1
Автор: Harris Deborah Jayne, SCAPENS David Alastair
Принадлежит:

This invention relates to an aqueous dispersion of particles, the dispersion having a particle content of 10-70 wt %, and the particles comprising, on an oxide basis: (a) 10-98 wt % in total of ZrO+HfO, and (b) 2-90 wt % in total of AIO, CeO, LaO, NdO, PrO, YO, or a transition metal oxide, wherein the dispersion has a Z-average particle size of 100-350 nm and the particles have a crystallite size of 1-9 nm. The invention also relates to a substrate coated with the aqueous dispersion of particles. 2. The aqueous dispersion of particles as claimed in claim 1 , wherein the particles comprise claim 1 , on an oxide basis:{'sub': ['2', '2'], '#text': '(a) 10-98 wt % in total of ZrO+HfO,'}{'sub': '2', '#text': '(b) 2-90 wt % CeO,'}{'sub': ['2', '3', '2', '3', '6', '11', '2', '3'], '#text': '(c) 0-30 wt % in total of LaO, NdO, PrO, YO, or a transition metal oxide, and'}{'sub': ['2', '3'], '#text': '(d) 0-88 wt % AlO.'}3. The aqueous dispersion of particles as claimed in claim 1 , wherein the particles comprise claim 1 , on an oxide basis claim 1 , 25-80 wt % in total of ZrOand HfO.4. The aqueous dispersion of particles as claimed in claim 1 , wherein the zirconia-ceria particles comprise claim 1 , on an oxide basis claim 1 , 10-80 wt % CeO.5. The aqueous dispersion of particles as claimed in claim 1 , wherein the zirconia-ceria particles comprise claim 1 , on an oxide basis claim 1 , 0-25 wt % in total of LaO claim 1 , NdO claim 1 , PrO claim 1 , YO claim 1 , and transition metal oxides.6. The aqueous dispersion of particles as claimed in claim 1 , wherein the dispersion has a particle content of 10-45 wt %.7. The aqueous dispersion of particles as claimed in claim 1 , wherein the dispersion additionally comprises particles comprising claim 1 , on an oxide basis claim 1 , at least 50 wt % AlO.8. The aqueous dispersion of particles as claimed in claim 1 , wherein the dispersion has a polydispersity index of 0.15-0.35.9. The aqueous dispersion of particles as claimed in claim ...

Подробнее
Номер записи: 71
17-03-2022 дата публикации

Transition Metal-Catalyzed Production of Alcohol and Carbonyl Compounds From Hydrocarbons

Номер: US20220081370A1
Автор: Barr Jared L., CLEAR Kathy S., Cruz Carlos A., MCDANIEL Max P., Monwar Masud M.
Принадлежит:

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and a supported transition metal catalyst—containing molybdenum, tungsten, or vanadium—are irradiated with a light beam at a wavelength in the UV-visible spectrum, optionally in an oxidizing atmosphere, to form a reduced transition metal catalyst, followed by hydrolyzing the reduced transition metal catalyst to form a reaction product containing the alcohol compound and/or the carbonyl compound. 1. A process for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound , the process comprising:(i) irradiating the hydrocarbon reactant and a supported transition metal catalyst comprising molybdenum, tungsten, vanadium, or a combination thereof, with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported transition metal catalyst to form a reduced transition metal catalyst; and(ii) hydrolyzing the reduced transition metal catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound.2. The process of claim 1 , wherein step (i) comprises irradiating the hydrocarbon reactant and the supported transition metal catalyst in an oxidizing atmosphere.3. The process of claim 1 , wherein the hydrocarbon reactant comprises a Cto Clinear claim 1 , branched claim 1 , or cyclic alkane compound.4. The process of claim 1 , wherein the hydrocarbon reactant comprises a Cto Colefin compound claim 1 , a Cto Caromatic compound claim 1 , or any combination thereof.5. The process of claim 1 , wherein the supported transition metal catalyst contains from 0.01 to 50 wt. % of molybdenum claim 1 , tungsten claim 1 , vanadium claim 1 , or a combination thereof claim 1 , based on the weight of the supported transition metal catalyst.6. The process of claim 1 , wherein:the supported transition metal catalyst comprises a solid oxide, a chemically ...

Подробнее
Номер записи: 72
10-03-2016 дата публикации

Titanium Stannate Silicate, Method of Preparation and Use Thereof

Номер: US20160067677A1
Автор: Brandts Jim Aloysius Maria
Принадлежит:

The present invention relates to an amorphous titanium stannate silicate with the general formula: MTiSiSnO, wherein M is proton, ammonium, a metal or a mixture of metals, wherein v is the valence of M being a positive integer, and wherein x, y, z and w are molar ratios: x is 1, y is from 0.01 to 99, z is from 0.01 to 99, and w is from 0.01 to 50. The described titanium stannate silicates are particularly useful in catalysis and adsorption. 2. The titanium stannate silicate according to claim 1 , wherein M is at least one of proton claim 1 , ammonium claim 1 , Na claim 1 , Li claim 1 , K claim 1 , Cs claim 1 , Ca claim 1 , Mg claim 1 , Sr claim 1 , Ba claim 1 , Fe(II) claim 1 , Fe(III) claim 1 , Sn(II) claim 1 , Ce claim 1 , La claim 1 , Nb claim 1 , Ni claim 1 , V claim 1 , W claim 1 , Mo claim 1 , Al claim 1 , Zn claim 1 , Cu claim 1 , Mn.3. The titanium stannate silicate according to claim 1 , wherein y is in the range of 0.1-10.4. The titanium stannate silicate according to claim 1 , wherein z is in the range of 0.03-5.5. The titanium stannate silicate according to claim 1 , wherein w is in the range 0.1-10.6. The titanium stannate silicate according to claim 1 , wherein said titanium stannate silicate has a pore volume of at least 0.3 mL/g claim 1 , determined by liquid nitrogen adsorption.7. The titanium stannate silicate according to claim 1 , wherein said titanium stannate silicate has an average pore diameter of at least 40 Å claim 1 , determined by liquid nitrogen adsorption.8. The titanium stannate silicate according to having a form of powder claim 1 , tablets claim 1 , granules or extrudate.9. A method for titanium stannate silicate preparation claim 1 , the method comprising:reacting a soluble silicate source, a soluble stannate source and a soluble titanium source in an aqueous medium to form titanium stannate silicate,percipitaing the titanium stannate silicate, andisolating the titanium stannate silicate.10. The method according to claim 9 , further ...

Подробнее
Номер записи: 73
10-03-2016 дата публикации

Stable Support For Fischer-Tropsch Catalyst

Номер: US20160067681A1
Автор: Jothimurugesan Kandaswamy
Принадлежит: Chevron U.S.A. INC.

A process has been developed for preparing a Fischer-Tropsch catalyst precursor and a Fischer-Tropsch catalyst made from the precursor. The process includes contacting a gamma alumina catalyst support material with a first solution containing a compound containing an element selected from the group consisting of yttrium (Y), niobium (Nb), molybdenum (Mo), tin (Sn), antimony (Sb) and mixtures thereof to obtain a modified catalyst support material. The modified catalyst support material is calcined at a temperature of at least 700° C. The calcined modified catalyst support has a pore volume of at least 0.4 cc/g. The modified catalyst support is less soluble in acid solutions than an equivalent unmodified catalyst support. The modified catalyst support is contacted with a second solution which includes a precursor compound of an active cobalt catalyst component to obtain a catalyst precursor. The catalyst precursor is reduced to activate the catalyst precursor to obtain the Fischer-Tropsch catalyst. The catalyst has enhanced hydrothermal stability as measured by losing no more than 25% of its pore volume when exposed to water vapor. 1. A process for preparing a Fischer-Tropsch catalyst precursor , the process comprising:a. contacting a gamma alumina catalyst support material with a first solution comprising a compound selected from the group consisting of yttrium, niobium, molybdenum, tin, antimony and mixtures thereof to form a composite support material;b. calcining the composite support material at a temperature of at least 700° C. to form a modified composite support having a pore volume of at least 0.4 cc/g; wherein the modified catalyst support loses no more than 30% of its pore volume when exposed to water vapor; andc. contacting the modified composite support with a second solution comprising a precursor compound of an active catalyst component comprising cobalt to obtain a catalyst precursor.2. The process of claim 1 , wherein the first solution comprises ...

Подробнее
Номер записи: 74
10-03-2016 дата публикации

DENITRATION CATALYST AND METHOD FOR PRODUCING SAME

Номер: US20160067683A1
Автор: Masuda Tomotsugu, NOCHI Katsumi
Принадлежит: Mitsubishi Hitachi Power Systems, Ltd.

Provided is a denitration catalyst with an improved wear resistance capable of stably reducing and removing nitrogen oxides in flue gases for a long period of time and a production method therefor. A denitration catalyst obtained by having a honey comb molded body that contains at least titanium oxide and vanadium pentoxide support magnesium surface, and wherein the peak intensity ratio of the first peak of the magnesium sulfate to the first peak of the titanium oxide in X-ray diffraction is 0.05-0.15, the content of the magnesium sulfate increases by 6-22% by mass, the pore volume is 0.17-0.40 cc/g, and the specific surface area is 33-100 m/g. 1. A denitration catalyst in which magnesium sulfate is carried on a honeycomb molded body which at least includes titanium oxide and vanadium pentoxide ,wherein a peak strength ratio between a first peak for the titanium oxide and a first peak for the magnesium sulfate observed by an X-ray diffraction method is 0.06 to 0.15,a content of the magnesium sulfate is increased by 6% by mass to 22% by mass,a pore volume of the denitration catalyst is 0.17 cc/g to 0.40 cc/g, and{'sup': 2', '2, 'a specific surface area of the denitration catalyst is 33 m/g to 100 m/g.'}2. The denitration catalyst according to claim 1 , wherein the content of magnesium in portions close to a surface of the denitration catalyst measured by electron probe micro analysis (EPMA) is more than a content of magnesium in a center of the denitration catalyst.3. A method of producing a denitration catalyst comprising the steps of:a magnesium sulfate carrying step of carrying magnesium sulfate increased by 6% by mass to 22% by mass on the honeycomb molded body by immersing a honeycomb molded body which at least includes titanium oxide and vanadium pentoxide in a 30° C. to 70° C. aqueous solution of magnesium sulfate; anda firing step of firing the honeycomb molded body at 510° C. to 550° C., which is performed after the magnesium sulfate carrying step.4. The ...

Подробнее
Номер записи: 75
27-02-2020 дата публикации

Supported indium oxide catalyst and process for methanol synthesis using the same

Номер: US20200061582A1
Автор: Antonio J. MARTIN-FERNANDEZ, Cecilia MONDELLI, Charlotte Drouilly, Daniel Curulla-Ferre, Javier Perez-Ramirez, Oliver Martin
Принадлежит: Eidgenoessische Technische Hochschule Zurich ETHZ, Total Raffinage Chimie SAS

The invention relates to a process for methanol synthesis comprising the steps of providing a syngas feed stream comprising hydrogen and carbon oxides selected from carbon dioxide or a mixture of carbon dioxide and carbon monoxide, wherein carbon dioxide represents from 1 to 50 mol % of the total molar content of the feed stream, carbon monoxide is contained from 0 to 85 mol % of the total molar content, and H2 is comprised from 5 to 95 mol % of the total molar content of the feed stream, and a catalyst comprising indium oxide (In2O3) on a support wherein the support comprises zirconium dioxide or is zirconium dioxide; putting in contact said stream with said supported catalyst at a reaction temperature of at least 373 K (99.85° C.) and under a pressure ranging of at least 1 MPa; and recovering the methanol effluents. The invention also relates to a supported indium oxide catalyst.

Подробнее
Номер записи: 76
27-02-2020 дата публикации

CATALYSTS FOR THE REFORMING OF GASEOUS MIXTURES

Номер: US20200061588A1
Автор: GU Sai, Le Saché Estelle, Pastor Pérez Laura, Ramirez Reina Tomas, Sepúlveda Escribano Antonio, Watson David
Принадлежит:

Pyrochlore-based solid mixed oxide materials suitable for use in catalysing a hydrocarbon reforming reaction are disclosed, as well as methods of preparing the materials, and their uses in hydrocarbon reforming processes. The materials contain a catalytic quantity of inexpensive nickel and exhibit catalytic properties in dry reforming reactions that are comparable—if not better—than those observed using expensive noble metal-containing catalysts. Moreover, the Pyrochlore-based solid mixed oxide materials can be used in low temperature dry reforming reactions, where other catalysts would become deactivated due to coking. Accordingly, the catalytic materials represent a sizeable development in the industrial-scale reforming of hydrocarbons. 1. A solid mixed oxide material suitable for use in catalysing a methane dry reforming reaction , wherein the solid mixed oxide material comprises a first crystalline phase , the first crystalline phase being attributable to a pyrochlore crystal structure , and wherein the solid mixed oxide material comprises 3.5-25.0% of nickel by weight relative to the total weight of the solid mixed oxide material.2. The solid mixed oxide material of claim 1 , wherein the solid mixed oxide material comprises 5.0-25.0% of nickel by weight relative to the total weight of the solid mixed oxide material.3. The solid mixed oxide material of or claim 1 , wherein the solid mixed oxide material comprises 7.5-20.0% of nickel by weight relative to the total weight of the solid mixed oxide material.4. The solid mixed oxide material of any one of claim 1 , or claim 1 , wherein the solid mixed oxide material comprises 9.0-15.0% of nickel by weight relative to the total weight of the solid mixed oxide material.5. The solid mixed oxide material of any preceding claim claim 1 , wherein the first crystalline phase has a composition according to general formula (I) shown below{'br': None, 'sub': 2', '2', '7, 'ABO\u2003\u2003 (I)'} A is at least one trivalent ...

Подробнее
Номер записи: 77
09-03-2017 дата публикации

POROUS IRON-SILICATE WITH RADIALLY DEVELOPED BRANCH, AND IRON-CARBIDE/SILICA COMPOSITE CATALYST PREPARED THEREFROM

Номер: US20170065965A1
Автор: Chun Dong Hyun, Hong Sung Jun, Jung Heon, Lee Ho Tae, Park Ji Chan, Yang Jung Il
Принадлежит: KOREA INSTITUTE OF ENERGY RESEARCH

The present invention provides an iron-carbide/silica composite catalyst that is highly reactive to a Fischer-Tropsch synthesis by firstly forming an iron-silicate structure having large specific surface area and well-developed pores through a hydrothermal reaction of an iron salt with a silica particle having a nanostructure, and then activating the iron-silicate structure in a high temperature carbon monoxide atmosphere. When using the iron-carbide/silica composite catalyst according to the present invention in the Fischer-Tropsch synthesis reaction, it is possible to effectively prepare liquid hydrocarbon with a high CO conversion rate and selectivity. 1. A porous iron-silicate with radially developed branches formed by a hydrothermal reaction of an aqueous solution containing an iron salt hydrate and a silica particle whose a structure has a role as a transformation template.2. The porous iron-silicate of claim 1 , which is termed by a hydrothermal reaction of an aqueous solution containing a silica particle and an iron salt hydrate in basic conditions.3. The porous iron-silicate of claim 1 , wherein the silica particle has a regular-shaped nanostructure.4. A method of preparing a porous iron-silicate with radially developed branches claim 1 , comprising the steps of:(i) heating a silica solution wherein a silica particle is mixed with a basic reagent;(ii) introducing an aqueous solution containing an iron salt hydrate to said heated silica solution; and(iii) decomposing a mixed solution of the iron salt hydrate and silica through a high-temperature hydrothermal reaction to form the porous iron-silicate.5. The method of claim 4 , wherein the silica particle has a surface area of 50˜1000 m/g and a pore volume of 0.2˜cm/g.6. The method of claim 4 , wherein the basic reagent is sodium hydroxide and the amount of solid sodium hydroxide used is 0.5 to 2 times with respect to the weight of silica.7. The method of claim 4 , wherein the silica particle is a silica ...

Подробнее
Номер записи: 78
29-05-2014 дата публикации

PHOTOCATALYST FOR WATER SPLITTING

Номер: US20140147377A1
Автор: Chua Kian Jon, HO Ghim Wei
Принадлежит: NATIONAL UNIVERSITY OF SINGAPORE

A nanocrystalline photocatalyst for water splitting and a method for fabricating a nanocrystalline photocatalyst for water splitting. The photocatalyst comprises a structure having a specific surface area and a volume fraction of atoms located both on the surface and at the grain boundaries adapted for enhancement of a photocatalytic reaction. 140-. (canceled)41. A photocatalyst for water splitting , the photocatalyst comprising a nanocrystalline structure having a selected specific surface area and volume fraction of atoms located both on the surface and at the grain boundaries to provide an increase in the surface energy for enhancement of a photocatalytic reaction relative to spherical nanoparticles and/or zero-dimensional nanoparticles.42. The photocatalyst as claimed in claim 41 , wherein the structure is selected from the group consisting ofa structure comprising one or more one-dimensional nanowires,a lamellar structure comprising two-dimensional nanosheets, anda structure comprising a three-dimensional gyroid structure,43. The photocatalyst as claimed in claim 41 , wherein the photocatalyst has a specific surface area of greater than 70 m/g claim 41 , a pore volume of greater than 0.04 cm/g claim 41 , or a Hproduction capability of greater than 250 μmolhg.44. The photocatalyst as claimed in claim 41 , wherein the photocatalyst exhibits an improvement in light absorption of at least 40% over spherical nanoparticles and/or zero-dimensional nanoparticles and an improvement in photocatalytic performance of at least 2 times over spherical nanoparticles and/or zero-dimensional nanoparticles.45. The photocatalyst as claimed in claim 41 , wherein the structure has a larger specific surface area and a higher volume fraction of atoms located both on the surface and at the grain boundaries compared to a spherical nanoparticle.46. The photocatalyst as claimed in claim 42 , wherein functionalized nanoparticles or functionalized branches are disposed on the one- ...

Подробнее
Номер записи: 79
11-03-2021 дата публикации

METHOD OF MAKING MESOPOROUS OXYGEN STORAGE MATERIALS FOR EXHAUST GAS TREATMENT; SAID OXYGEN STORAGE MATERIALS AND THEIR USE

Номер: US20210071558A1
Автор: Bortun Anatoly, Bortun Mila, Cho Jin, Lachapelle Jeffery, Li Yunkui, Shepard David, Wu Wei
Принадлежит:

A method of making an oxygen storage material (OSM) with developed mesoporosity having a small fraction of pores <10 nm (fresh or aged), and resistance to thermal sintering is provided. This OSM is suitable for use as a catalyst and catalyst support. The method of making this oxygen storage material (OSM) includes the preparation of a solution containing pre-polymerized zirconium oligomers, cerium, rare earth and transition metal salts; the interaction of this solution with a complexing agent that has an affinity towards zirconium; the formation of a zirconium-based precursor; and the co-precipitation of all constituent metal hydroxide with abase. 1. A method for making mesoporous an Oxygen Storage Material (OSM) , the method comprising the steps of:(a) preparing an acidic solution containing polymerized zirconium oligomers;(b) adding an acidic solution of cerium and rare earth salts to the zirconium containing solution to make a polyvalent metal containing mixture;(c) allowing for the interaction of the acidic polyvalent metal containing mixture with a solution of a complexing reagent that exhibits an affinity towards zirconium;(d) forming a zirconium-based precursor slurry;(e) neutralizing the zirconium containing precursor slurry with a base to achieve co-precipitation of any constituent metal hydroxides;(f) washing the precipitated mixed oxide material with water to remove cationic and anionic admixtures;(g) ageing the freshly precipitated mixed oxide material at ambient or, alternatively at an elevated temperature;(h) drying the wet mixed oxide material; and(i) calcining the mixed oxide material to form the OSM;wherein the OSM has a fraction of 2-10 nm pores that is less than 20%.2. The method for making the OSM according to claim 1 , wherein the polymerized zirconium oligomers comprise zirconium octamers in an amount ranging from about 30 to 100%.3. The method for making the OSM according to claim 1 , wherein the polymerized zirconium oligomers do not contain ...

Подробнее
Номер записи: 80
24-03-2022 дата публикации

SOLID ACID CATALYST, PREPARATION THEREFOR AND USE THEREOF

Номер: US20220088580A1
Автор: Fu Qiang, HU Hexin, LI Yongxiang, Mu Xuhong, Shu Xingtian, ZHANG Chengxi
Принадлежит:

A solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, a ratio of macropore specific volume to specific length of catalyst particles of about 1.0-2.5 ml/(g·mm), and a ratio of specific surface area to length of catalyst particles of about 3.40-4.50 m/mm. The macropore refers to pores having a diameter of more than 50 nm. An alkylation catalyst is based on the solid acid catalyst and can be used in alkylation reactions. The solid acid catalyst and alkylation catalyst show an improved catalyst service life and/or trimethylpentane selectivity when used in the alkylation of isoparaffins with olefins. 1. A solid acid catalyst , having a macropore specific volume in a range of about 0.30-0.50 ml/g , preferably about 0.30-0.40 ml/g , more preferably at least about 0.35 ml/g; a ratio of macropore specific volume to specific length of catalyst particles in a range of about 1.0-2.5 ml/(g·mm) , preferably about 1.1-1.8 ml/(g·mm); a ratio of specific surface area to length of catalyst particles in a range of about 3.40-4.50 m/mm , wherein the macropore refers to pores having a diameter of greater than 50 nm.2. The solid acid catalyst according to claim 1 , wherein the solid acid catalyst further has one or more of the following characteristics:a specific length of catalyst particles in a range of about 0.15-0.4 mm, preferably about 0.18-0.36 mm, more preferably about 0.20-0.32 mm;a total pore specific volume of at least about 0.40 ml/g, preferably at least about 0.45 ml/g; and{'sup': 2', '2, 'a specific surface area of not less than about 500 m/g, preferably not less than about 550 m/g.'}3. The solid acid catalyst according to claim 1 , wherein the solid acid catalyst comprises a solid acid component and a matrix material claim 1 , and wherein claim 1 , based on the total weight of the solid acid component and the matrix material claim 1 , the solid acid catalyst comprises about 2-98 wt % of the solid acid component and about 2-98 wt % of the matrix ...

Подробнее
Номер записи: 81
07-03-2019 дата публикации

METHOD FOR PRODUCING POROUS BODIES WITH ENHANCED PROPERTIES

Номер: US20190070588A1
Автор: Julian Matthew, Suchanek Wojciech L.
Принадлежит: Scientific Design Company, Inc.

A precursor mixture for producing a porous body, wherein the precursor mixture comprises: (i) milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) boehmite powder that functions as a binder of the alpha alumina powders, and (iii) burnout materials having a particle sizes of 1-10 microns. In some embodiments, an unmilled alpha alumina powder having a particle size of 10 to 100 microns is also included in said precursor mixture. Also described herein is a method for producing a porous body in which the above-described precursor mixture is formed to a given shape, and subjected to a heat treatment step in which the formed shape is sintered to produce the porous body. 1. A method for producing a porous body , the method comprising:providing a precursor mixture comprising (i) milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) boehmite powder that functions as a binder of the alpha alumina powders, and (iii) burnout material having a particle size of 1-10 microns;forming a predetermined shape; andsubjecting the shape to a heat treatment step in which the shape is sintered to produce the porous body.2. The method of claim 1 , further comprising unmilled alpha alumina powder having a particle size of 10 to 100 microns in said precursor mixture.3. The method of claim 2 , wherein the weight ratio of milled to unmilled alpha alumina powder is in a range of 0.25:1 to about 5:1.4. The method of claim 1 , wherein unmilled alpha alumina powder is excluded from the precursor mixture.5. The method of claim 1 , wherein the method comprises:(i) dispersing boehmite into water to produce a dispersion of boehmite;(ii) adding a milled alpha alumina powder having a particle size of 0.1 to 6 microns to the dispersion of boehmite, and mixing until a first homogeneous mixture is obtained, wherein said boehmite functions as a binder of the alpha alumina powder;(iii) adding burnout materials having a particle size of 1-10 microns, and mixing ...

Подробнее
Номер записи: 82
24-03-2022 дата публикации

SALT-FREE PRODUCTION OF METHIONINE FROM METHIONINE NITRILE

Номер: US20220089534A1
Автор: BILZ Jürgen, Borgmann Cornelia, GEIST Lucas, Jakob Harald, Körfer Martin, REUS Christian, ROST Daniel
Принадлежит: EVONIK OPERATIONS GMBH

The invention refers to the use of a particulate catalyst containing 60.0 to 99.5 wt. % ZrOstabilised with an oxide of the element Hf and at least one oxide of the element M, wherein M=Ce, Si, Ti, or Y, for the hydrolysis reaction of methionine amide to methionine, wherein the median particle size xof the particulate catalyst is in the range of from 0.8 to 9.0 mm, preferably of from 1.0 to 7.0 mm. The invention also refers to a process for preparing methionine comprising a step of contacting a solution or suspension comprising methionine amide and water with said particulate catalyst to provide a reaction mixture comprising methionine and/or its ammonium salt from which methionine can be isolated. 1. A method of catalyzing the hydrolysis reaction of methionine amide to methionine , the method comprising contacting a solution or suspension comprising methionine amide and water with a particulate catalyst to produce a reaction mixture comprising methionine ,wherein the particulate catalyst comprises:{'sub': '2', '#text': '60.0 to 99.5 wt. % ZrO;'}an oxide of the element Hf; andat least one oxide of the element M, wherein M=Ce, Si, Ti, or Y,{'sub': '2', '#text': 'wherein the ZrOis stabilized by the oxide of the element Hf and the at least one oxide of the element M, and'}{'sub': '50', '#text': 'wherein the median particle size xof the particulate catalyst is in the range of from 0.8 to 9.0 mm.'}2. The method of claim 1 , wherein the element M=Si claim 1 , Ti claim 1 , or Y.3. The method of claim 1 , wherein the particle size xof the particulate catalyst is in the range of from 0.5 to 8.0 mm.4. The method of claim 1 , wherein the particulate catalyst comprises 0.1 to 40 wt. % of oxides of the elements Hf claim 1 , Ce claim 1 , Si claim 1 , Ti claim 1 , and Y.5. The method of claim 1 , wherein the particulate catalyst comprises:{'sub': ['2', '2', '2', '2', '3', '2'], '#text': '0.5 to 3.0 wt. % HfOand at least one selected from the group consisting of 0.1 to 40 wt. % TiO, ...

Подробнее
Номер записи: 83
05-03-2020 дата публикации

FISCHER-TROPSCH PROCESS IN THE PRESENCE OF A CATALYST PREPARED FROM A MOLTEN SALT

Номер: US20200070129A1
Автор: FECANT Antoine, TAVERNIER Eugenie, TELLIER Elodie
Принадлежит: IFP ENERGIES NOUVELLES

Fischer-Tropsch process for the synthesis of hydrocarbons by bringing a feedstock including synthesis gas into contact with a catalyst prepared by the following: 1. Fischer-Tropsch process for the synthesis of hydrocarbons , which comprises bringing a feedstock comprising a synthesis gas into contact with at least one catalyst under a total pressure between 0.1 and 15 MPa , at a temperature of between 150 and 350° C. , and at an hour space velocity of between 100 and 20 000 volumes of synthesis gas per volume of catalyst and per hour with an H/CO molar ratio of the synthesis gas between 0.5 and 4 , said catalyst containing an active phase comprising at least cobalt and a porous support of oxide type , said catalyst being prepared by at least the following steps:a) said porous oxide-type support is brought into contact with a cobalt metal salt of which the melting point of said cobalt metal salt is between 30 and 150° C., in order to form a solid mixture for a period of time of between 5 minutes and 5 hours, the weight ratio of said cobalt metal salt to said porous oxide support being between 0.1 and 1;b) the solid mixture obtained at the end of step a) is heated with stirring under atmospheric pressure at a temperature between the melting point of said cobalt metal salt and 200° C. for a period of time of between 5 minutes and 12 hours;c) optionally, the solid obtained at the end of step b) is dried at a temperature below 200° C.;d) the solid obtained at the end of step b) or c) is calcined at a temperature above 200° C. and below or equal to 1100° C. under an inert atmosphere or under an oxygen-containing atmosphere.2. Process according to claim 1 , in which said cobalt metal salt is chosen from cobalt nitrate hexahydrate or cobalt acetate tetrahydrate.3. Process according to claim 1 , in which the weight ratio of the cobalt metal salt to the porous support is between 0.3 and 0.9.4. Process according to claim 1 , in which step a) is carried out for 10 minutes to 4 ...

Подробнее
Номер записи: 84
05-03-2020 дата публикации

PHOTOCATALYST HAVING HIGH VISIBLE-LIGHT ACTIVITY

Номер: US20200070135A1
Автор: LEE Byeong Kyu, PHAM Thanhdong
Принадлежит: UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION

A photocatalyst according to the present invention has a structure in which the titanium dioxide doped with the transition metals is supported on the support such that a band gap thereof is low and a specific surface area thereof is high, thereby exhibiting an excellent photocatalytic activity even in a visible light region and providing an excellent effect of adsorbing an organic compound and removing the same even under a condition in which light is not emitted. 1. A photocatalyst comprising:titanium dioxide doped with vanadium (V); anda support on which the titanium dioxide is supported,wherein the support is a polymer matrix having a porous structure,wherein the a polymer matrix has a activating surface with an isocyanate group for chemical bond to titanium dioxide thought silane-based binder,{'sup': '2', 'wherein an average BET specific surface area of the photocatalyst is in a range of 120 to 480 m/g.'}2. The photocatalyst of claim 1 , wherein the photocatalyst has a band gap of 4 eV or less in a wavelength range of 400 to 700 nm.3. The photocatalyst of claim 1 , wherein the photocatalyst comprises 0.1 to 15 parts by weight of the titanium dioxide doped with the transition metal claim 1 , based on 100 parts by weight of the polymer matrix.4. The photocatalyst of claim 1 , wherein an average particle diameter of pores formed in the polymer matrix is in a range of 50 to 500 μm claim 1 , and{'sup': '3', 'an average volume of the pores is in a range of 0.01 to 0.03 cm/g.'}5. The photocatalyst of claim 1 , wherein the polymer matrix comprises one or more selected from the group consisting of a polyurethane resin claim 1 , a polyester resin claim 1 , and polyamide resin. This application is a Division of U.S. patent application Ser. No. 15/761,548 filed on Mar. 20, 2018, which is a National Phase of PCT Patent Application No. PCT/KR2015/012525 having International filing date of Nov. 20, 2015, which claims the benefit of priority of Korean Patent Application Nos. 10 ...

Подробнее
Номер записи: 85
05-03-2020 дата публикации

PROCESS FOR PREPARING A CATALYST OR A TRAPPING MASS FROM MOLTEN SALTS

Номер: US20200070137A1
Автор: DECOTTIGNIES Dominique, FECANT Antoine, TELLIER Elodie
Принадлежит: IFP ENERGIES NOUVELLES

Process for preparing a catalyst or a trapping mass comprising the following steps: 1. Process for preparing a catalyst or a trapping mass comprising an active phase based on at least one metal from group VIB , VIIB , VIIIB , IB or MB and a porous oxide support , said catalyst being prepared by at least the following steps:a) said porous oxide support is brought into contact with at least one metal salt comprising at least one metal belonging to groups VIB, VIIB, VIIIB, IB or IIB, of which the melting point of said metal salt is between 20° C. and 150° C., for a period of between 5 minutes and 5 hours in order to form a solid mixture, the weight ratio of said metal salt to said porous oxide support being between 0.1 and 1;b) the solid mixture obtained at the end of step a) is heated with stirring at a temperature between the melting point of said metal salt and 200° C. and with a residence time of between 5 minutes and 12 hours;c) optionally, the solid obtained at the end of step b) is dried at a temperature below 200° C.;d) the solid obtained at the end of step b) or c) is calcined at a temperature above 200° C. and below or equal to 1100° C. under an inert atmosphere or under an oxygen-containing atmosphere.2. Process according to claim 1 , in which said metal is chosen from Zn claim 1 , Cu claim 1 , Ni claim 1 , Fe claim 1 , Co claim 1 , Mn.3. Process according to claim 1 , in which the metal salt is a hydrated nitrate salt.4. Process according to claim 3 , in which said metal salt is chosen from zinc nitrate trihydrate claim 3 , zinc nitrate hexahydrate claim 3 , copper nitrate trihydrate claim 3 , copper nitrate hexahydrate claim 3 , nickel nitrate hexahydrate claim 3 , iron nitrate nonahydrate claim 3 , cobalt nitrate hexahydrate claim 3 , manganese nitrate tetrahydrate claim 3 , manganese nitrate hexahydrate claim 3 , taken alone or as a mixture.5. Process according to claim 1 , in which the weight ratio of said metal salt to the porous support is between 0.3 ...

Подробнее
Номер записи: 86
16-03-2017 дата публикации

HYDROTREATING CATALYST, METHOD FOR PRODUCING THE CATALYST, AND HYDROTREATING PROCESS FOR HYDROCARBON OIL USING THE CATALYST

Номер: US20170073592A1
Автор: KANAI Yuuki, KOBAYASHI Toyokazu, NISHIMORI Youhei, Nonaka Kenji, TOYOSHI Yasuo
Принадлежит:

To provide a catalyst having hydrotreatment (hydrogenation, desulfurization and denitrification) performance that is equal to or superior to the prior art, as a hydrotreating catalyst for hydrocarbon oils, and a hydrotreating process for hydrocarbon oils using the catalyst. The catalyst comprises 10 to 40 mass % of at least one element of Group 6 of the Periodic Table, 0.5 to 15 mass % of at least one element of Groups 8 to 10 of the Periodic Table based on the oxide catalysts, and a 0.05- to 3-fold amount of an organic additive with respect to the total number of moles of the elements of Group 6 and Groups 8 to 10 of the Periodic Table, added to an inorganic porous support composed mainly of silica-alumina that comprises an oxide of a metal of Group 2 of the Periodic Table. 1. A hydrotreating catalyst for hydrocarbon oils having at least one metal selected from among metals of Group 6 of the Periodic Table , at least one metal selected from among metals of Groups 8 to 10 of the Periodic Table , and an organic additive , supported on an inorganic porous carrier comprising at least one metal selected from among metals of Group 2 of the Periodic Table , in addition to alumina and silica.2. The hydrotreating catalyst according to claim 1 , wherein the content of at least one metal selected from among metals of Group 2 of the Periodic Table is 0.3 to 2 mass % of the oxide catalysts claim 1 , the silica content is 3 to 12 mass % of the oxide catalysts claim 1 , the mean pore diameter is 9 to 20 nm claim 1 , the specific surface area is 100 to 170 m/g claim 1 , and the total pore volume is 0.3 to 0.6 ml/g.3. The hydrotreating catalyst according to or claim 1 , wherein the content of organic additives is 0.05 to 3 times the total number of moles of elements of Group 6 of the Periodic Table and elements of Groups 8 to 10 of the Periodic Table.4. The hydrotreating catalyst according to any one of to claim 1 , wherein the metal of Group 2 of the Periodic Table is magnesium or ...

Подробнее
Номер записи: 87
05-03-2020 дата публикации

Methods for Synthesizing Mesoporous Zeolite ETS-10 Containing Metal Without a Templating Agent

Номер: US20200071174A1
Автор: Baoli MA, Chunming Dong, Dan Wang, Gang Wang, Guangming Wen, Guojia Zhang, Guoren Cai, Jinhe Song, Jintao Guo, Lei Fang, Lei Zhang, Liru Cong, Liyan Guo, Mingwei Tan, Quanguo Zhang, Runsheng Shen, Tiandi Tang, Tiegang Xu, Weichi Xu, Wencheng Zhang, Wenqian Fu, Xianjun Wu, Yu Liang
Принадлежит: Petrochina Co Ltd

The invention provides a method for synthesizing a mesoporous zeolite ETS-10 containing a metal without a templating agent. The method according to the invention comprises the steps of: mixing a silicon source with a NaOH solution to obtain a mixed solution so that the content of Na 2 O in the mixed solution is 10.0% to 20.0% by weight; adding a KOH or KF solution so that the content of K 2 O is 10.0% to 25.0% by weight and stirring it well; adding a titanium source solution and stirring it well; adding a precursor compound containing metal Ni and/or Co and stirring it well; and subjecting it to a crystallization reaction to obtain the mesoporous zeolite ETS-10. The mesoporous zeolite ETS-10 obtained by the invention has a specific surface area of 320 to 420 m 2 /g, a mesoporous volume of 0.11 to 0.21 cm 3 /g, and thus can be used as a catalyst and a support thereof in synthesis industry for macromolecular fine chemicals.

Подробнее
Номер записи: 88
05-03-2020 дата публикации

METHOD FOR ADDING AN ORGANIC COMPOUND TO A POROUS SOLID IN THE GASEOUS PHASE

Номер: US20200071625A1
Автор: CARRETTE P-Louis, GUICHARD Bertrand, Guillou Florent
Принадлежит: IFP ENERGIES NOUVELLES

The invention relates to a process for adding an organic compound to a porous solid wherein the porous solid and the organic compound in the liquid state are brought together simultaneously, without physical contact between the solid and the organic compound in the liquid state, at a temperature below the boiling point of the organic compound and under pressure and time conditions such that a fraction of said organic compound is transferred gaseously to the porous solid. 1) A process for adding an organic compound to a porous solid comprising a step a) wherein the porous solid and the organic compound in the liquid state are brought together simultaneously and without physical contact between the solid and the organic compound in the liquid state , at a temperature below the boiling point of the organic compound and under pressure and time conditions such that a fraction of said organic compound is transferred gaseously to the porous solid.2) The process as claimed in claim 1 , wherein step a) is carried out by means of a unit for adding said organic compound comprising a first compartment and a second compartment that are in communication so as to allow the passage of a gaseous fluid between the compartments claim 1 , the first compartment containing the porous solid and the second compartment containing the organic compound in the liquid state.3) The process as claimed in claim 2 , wherein the unit comprises a chamber that includes the first and second compartments claim 2 , the two compartments being in gaseous communication.4) The process as claimed in claim 2 , wherein the unit comprises two chambers that respectively form the first and second compartments claim 2 , the two chambers being in gaseous communication.5) The process as claimed in claim 1 , wherein step a) of bringing the porous solid together with the organic compound in the liquid state is carried out in the presence of a stream of a carrier gas flowing from the second compartment into the first ...

Подробнее
Номер записи: 89
18-03-2021 дата публикации

PLATINUM-SULFUR-BASED SHELL CATALYST, PRODUCTION AND USE THEREOF IN THE DEHYDROGENATION OF HYDROCARBONS

Номер: US20210077984A1
Автор: Boesmann Andreas, FRANKL Franziska, SEIDEL Alexander, STURM Stefanie, SZESNI Normen, Wasserscheid Peter
Принадлежит:

The invention relates to the use of a supported, platinum-containing and sulfur-containing shell catalyst for the partial or complete dehydrogenation of perhydrogenated or partially hydrogenated cyclic hydrocarbons. The present invention also relates to a method for producing a platinum-containing and sulfur-containing shell catalyst and to a platinum-containing and sulfur-containing shell catalyst. The present invention further relates to a method for the partial or complete dehydrogenation of perhydrogenated or partially hydrogenated cyclic hydrocarbons. 2. The use as claimed in claim 1 , wherein the perhydrogenated or partly hydrogenated cyclic hydrocarbon is selected from the group consisting of cyclohexane claim 1 , methylcyclohexane claim 1 , decalin claim 1 , perhydrogenated or partly hydrogenated benzyltoluene claim 1 , perhydrogenated or partly hydrogenated N-alkylated carbazole claim 1 , especially perhydrogenated or partly hydrogenated N-ethylcarbazole claim 1 , and perhydrogenated or partly hydrogenated dibenzyltoluene and isomers thereof.3. The use as claimed in or claim 1 , wherein the dehydrogenation is performed continuously in a reactor selected from a fixed bed reactor claim 1 , a flow bed reactor or a fluidized bed reactor claim 1 , and preferably in a fixed bed reactor.4. The use as claimed in claim 1 , or claim 1 , wherein the dehydrogenation is effected at a temperature in the range from 200° C. to 400° C. claim 1 , more preferably at a temperature in the range from 230° C. to 330° C. claim 1 , especially at a temperature in the range from 260° C. to 310° C. claim 1 , and preferably at a pressure in the range of 1-5 bar claim 1 , more preferably in the range of 2-4 bar claim 1 , especially at a pressure of about 3 bar.5. The use as claimed in any of to claim 1 , wherein the shell catalyst has an outer shell including 85% by weight or more claim 1 , preferably 90% by weight or more claim 1 , especially 95% by weight or more claim 1 , of the ...

Подробнее
Номер записи: 90
18-03-2021 дата публикации

Chromium-Based Catalysts and Processes for Converting Alkanes into Higher and Lower Aliphatic Hydrocarbons

Номер: US20210078920A1
Автор: Carlos A. Cruz, Jared L. BARR, Masud M. Monwar, Max P. McDaniel
Принадлежит: Chevron Phillips Chemical Co LP

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

Подробнее
Номер записи: 91
14-03-2019 дата публикации

TITANIA PARTICLES AND A PROCESS FOR THEIR PRODUCTION

Номер: US20190076821A1
Автор: Edwards John Lalande, Lowry Karl, Robb John, WATERS DARREN J.
Принадлежит: HUNTSMAN P&A UK LIMITED

The present invention provides titania particles which are formed by providing a titania sol and spray drying the titania sol. A morphology of the dried titania particles is controlled by producing the titania sol from a TiOcontaining slurry and controlling the pH of the slurry to be 3 pH units or more from the iso-electric point of the titania by adding a peptizing agent to reduce an extent to which the titania sol is flocculated, or by producing the titania sol from a TiOcontaining slurry and adjusting the iso-electric point to be 3 pH units or more from the pH of the slurry by adding a dispersant to reduce an extent to which the titania sol is flocculated. The titania particles have a continuous exterior convex surface, a diameter of 30 μm or less, a BET specific surface area of 50 m/g or more, and are porous. 1. Titania particles formed by:providing a titania sol; and thenspray drying the titania sol to provide dried titania particles, [{'sub': '2', '(i) producing the titania sol from a TiOcontaining slurry and controlling the pH of the slurry to be 3 pH units or more from the iso-electric point of the titania by adding a peptizing agent to reduce an extent to which the titania sol is flocculated, or'}, {'sub': '2', '(ii) producing the titania sol from a TiOcontaining slurry and adjusting the iso-electric point to be 3 pH units or more from the pH of the slurry by adding a dispersant to reduce an extent to which the titania sol is flocculated, and'}], 'wherein a morphology of the dried titania particles is controlled by have a continuous exterior convex surface,', 'a diameter of 30 μm or less,', {'sup': '2', 'a BET specific surface area of 50 m/g or more, and'}, 'are porous., 'wherein the titania particles,'}2. The titania particles as recited in claim 1 , wherein the titania particles are each spherical in shape or toroidal in shape.3. The titania particles as recited in claim 1 , wherein the titania particles have a diameter of 20 μm or less.4. The titania ...

Подробнее
Номер записи: 92
31-03-2022 дата публикации

MODIFIED LARGE CRYSTALLITE USY ZEOLITE FOR HYDROCRACKING HYDROCARBON OIL

Номер: US20220097031A1
Автор: Hodgkins Robert Peter, KOSEOGLU Omer Refa, Uchida Koji, Watabe Mitsunori
Принадлежит:

In accordance with one or more embodiments of the present disclosure, a catalyst composition includes a catalyst support and at least one hydrogenative component disposed on the catalyst support. The catalyst support includes at least one USY zeolite having a framework substituted with titanium and/or zirconium and/or hafnium. The framework-substituted USY zeolite has an average crystallite size from 5 μm to 50 μm. Methods of making and using such a catalyst in a hydrocracking process are also disclosed. 1. A catalyst composition comprising:at least one hydrogenative metal component; and{'claim-text': ['the support comprises a framework-substituted ultra-stable Y-type (USY) zeolite substituted with zirconium atoms, titanium ions, or both zirconium atoms and titanium atoms; and', 'the framework-substituted USY zeolite has an average crystallite size from 5 μm to 50 μm.'], '#text': 'a support; wherein'}2. The catalyst composition of claim 1 , wherein the framework-substituted ultra-stable Y-type zeolite is substituted with 0.1-5 mass % zirconium atoms on an oxide basis claim 1 , 0.1-5 mass % titanium calculated on an oxide basis claim 1 , or 0.1-5 mass zirconium atoms on an oxide basis and 0.1-5 mass % titanium calculated on an oxide basis.3. The catalyst composition of claim 1 , wherein the framework-substituted ultra-stable Y-type zeolite comprises hafnium atoms.4. The catalyst composition of claim 1 , further comprising an inorganic oxide compound wherein the inorganic oxide compound comprises alumina claim 1 , silica claim 1 , titania claim 1 , silica-alumina claim 1 , alumina-titania claim 1 , alumina-zirconia claim 1 , alumina-boria claim 1 , phosphorus-alumina claim 1 , silica-alumina-boria claim 1 , phosphorus-alumina-boria claim 1 , phosphorus-alumina-silica claim 1 , silica-alumina-titania claim 1 , silica-alumina-zirconia claim 1 , or a combination of two or more thereof.5. The catalyst composition of claim 1 , wherein the at least one hydrogenative metal ...

Подробнее
Номер записи: 93
21-03-2019 дата публикации

Multi-metallic Catalyst System And Use Of The Same In Preparing Upgraded Fuel From Biomass

Номер: US20190083961A1
Автор: Bhujade Ramesh, Jasra Raksh Vir, Mandan Chidambaram, Mantri Kshudiram, Sharma Nagesh
Принадлежит: RELIANCE INDUSTRIES LIMITED

The present disclosure provides a multi-metallic catalyst system comprising at least one support, and at least one promoter component and an active component comprising at least two metals uniformly dispersed on the support. The present disclosure also provides a process for preparing the multi-metallic catalyst system. Further, the present disclosure provides a process for preparing upgraded fuel from biomass. The process is carried out in two steps. In the first step, a biomass slurry is prepared and is heated in the presence of hydrogen and a multi-metallic catalyst that comprises at least one support, at least one promoter component, and an active component comprising at least two metals to obtain crude biofuel as an intermediate product. The intermediate product obtained in the first step is then cooled and filtered to obtain a filtered intermediate product. In the second step, the filtered intermediate product is hydrogenated in the presence of the multi-metallic catalyst to obtain the upgraded fuel. The fuel obtained from the process of the present disclosure is devoid of heteroatoms such as oxygen, nitrogen and sulfur. 1. A multi-metallic catalyst system comprising:i. at least one alumina support;ii. a promoter component impregnated on said at least one support; wherein said promoter is at least one selected from the group consisting of Niobium (Nb) and Phosphorous (P); andiii. an active component comprising cobalt and molybdenum, being uniformly dispersed on said at least one support.2. The catalyst system as claimed in claim 1 , wherein said catalyst system is characterized by having BET surface area in the range of 165 to 170 m/g claim 1 , pore volume in the range of 0.48 to 0.50 cc/g claim 1 , pore width in the range of 78 to 82 Å claim 1 , and total acidity in the range of 0.810 to 0.812 mmol/g.3. The catalyst system as claimed in claim 1 , wherein said support is in at least one form selected from the group consisting of spheres claim 1 , extrudates ...

Подробнее
Номер записи: 94
31-03-2016 дата публикации

HYDROISOMERIZATION CATALYST WITH A BASE EXTRUDATE HAVING A HIGH NANOPORE VOLUME

Номер: US20160089663A1
Автор: KRISHNA Kamala Raghunathan, Lei Guan-Dao, Maesen Theodorus Ludovicus Michael, Zhang Yihua
Принадлежит:

The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina having a broad pore size distribution (BPSD), and a second HNPV alumina having narrow pore size distribution (NPSD). Their combination yields a HNPV base extrudate having larger porosity with a bimodal pore size distribution as compared to a conventional base extrudates. 1. A hydroisomerization catalyst , comprising:a base extrudate comprising at least one molecular sieve selective towards isomerization of n-paraffins, a first alumina having a high nanopore volume and a broad pore size distribution, and a second alumina having a high nanopore volume and a narrow pore size distribution, wherein the base extrudate has a nanopore volume in the 6 nm to 11 nm range of 0.25 to 0.4 cc/g; andat least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table.2. The hydroisomerization catalyst of claim 1 , wherein the first alumina has a pore size distribution characterized by a full width at half-maximum claim 1 , normalized to pore volume claim 1 , of 15 to 25 nm·g/cc.3. The hydroisomerization catalyst of claim 2 , wherein the first alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g4. The hydroisomerization catalyst of claim 2 , wherein the second alumina has a pore size distribution characterized by a full width at half-maximum claim 2 , normalized to pore volume claim 2 , of 5 to 15 nm·g/cc.5. The hydroisomerization catalyst of claim 4 , wherein the second alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g.6. The hydroisomerization catalyst of claim 1 , wherein a pore size distribution plot for the base extrudate will indicate a maximum peak with a shoulder located at a pore size between 7 and 14 nm.7. The hydroisomerization catalyst of claim 1 , wherein the base extrudate has a nanopore volume in the 6 nm to 11 nm range of ...

Подробнее
Номер записи: 95
31-03-2016 дата публикации

HYDROISOMERIZATION CATALYST WITH A BASE EXTRUDATE HAVING A HIGH TOTAL NANOPORE VOLUME

Номер: US20160089664A1
Автор: KRISHNA Kamala Raghunathan, Lei Guan-Dao, Maesen Theodorus Ludovicus Michael, Zhang Yihua
Принадлежит:

The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina having a broad pore size distribution (BPSD), and a second HNPV alumina having narrow pore size distribution (NPSD). Their combination yields a HNPV base extrudate having higher total nanopore volume with a bimodal pore size distribution as compared to a conventional base extrudates. 1. A hydroisomerization catalyst , comprising:a base extrudate comprising at least one molecular sieve selective towards isomerization of n-paraffins, a first alumina having a high nanopore volume and a broad pore size distribution, and a second alumina having a high nanopore volume and a narrow pore size distribution, wherein the base extrudate has a total nanopore volume in the 2 nm to 50 nm range of 0.7 to 1.2 cc/g; andat least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table.2. The hydroisomerization catalyst of claim 1 , wherein the first alumina has a pore size distribution characterized by a full width at half-maximum claim 1 , normalized to pore volume claim 1 , of 15 to 25 nm·g/cc.3. The hydroisomerization catalyst of claim 2 , wherein the first alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g4. The hydroisomerization catalyst of claim 2 , wherein the second alumina has a pore size distribution characterized by a full width at half-maximum claim 2 , normalized to pore volume claim 2 , of 5 to 15 nm·g/cc.5. The hydroisomerization catalyst of claim 4 , wherein the second alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g.6. The hydroisomerization catalyst of claim 1 , wherein a pore size distribution plot for the base extrudate will indicate a maximum peak with a shoulder located at a pore size between 7 and 14 nm.7. The hydroisomerization catalyst of claim 1 , wherein the base extrudate has a nanopore volume in the 6 nm ...

Подробнее
Номер записи: 96
31-03-2016 дата публикации

HYDROISOMERIZATION CATALYST WITH A BASE EXTRUDATE HAVING A LOW PARTICLE DENSITY

Номер: US20160089665A1
Автор: KRISHNA Kamala Raghunathan, Lei Guan-Dao, Maesen Theodorus Ludovicus Michael, Zhang Yihua
Принадлежит:

The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina having a broad pore size distribution (BPSD), and a second HNPV alumina having narrow pore size distribution (NPSD). Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates. 1. A hydroisomerization catalyst , comprising:a base extrudate comprising at least one molecular sieve selective towards isomerization of n-paraffins, a first alumina having a high nanopore volume and a broad pore size distribution, and a second alumina having a high nanopore volume and a narrow pore size distribution, wherein the base extrudate has a particle density of 0.75 to 0.95 cc/g; andat least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table.2. The hydroisomerization catalyst of claim 1 , wherein the first alumina has a pore size distribution characterized by a full width at half-maximum claim 1 , normalized to pore volume claim 1 , of 15 to 25 nm·g/cc.3. The hydroisomerization catalyst of claim 2 , wherein the first alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g4. The hydroisomerization catalyst of claim 2 , wherein the second alumina has a pore size distribution characterized by a full width at half-maximum claim 2 , normalized to pore volume claim 2 , of 5 to 15 nm·g/cc.5. The hydroisomerization catalyst of claim 4 , wherein the second alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g.6. The hydroisomerization catalyst of claim 1 , wherein a pore size distribution plot for the base extrudate will indicate a maximum peak with a shoulder located at a pore size between 7 and 14 nm.7. The hydroisomerization catalyst of claim 1 , wherein the base extrudate has a nanopore volume in the 6 nm to 11 nm range of 0.25 to 0.4 cc/g claim 1 , a nanopore volume in the 11 ...

Подробнее
Номер записи: 97
31-03-2016 дата публикации

HYDROISOMERIZATION CATALYST MANUFACTURED USING A HIGH NANOPORE VOLUME ALUMINA SUPPORTS

Номер: US20160089666A1
Автор: KRISHNA Kamala Raghunathan, Lei Guan-Dao, Maesen Theodorus Ludovicus Michael, Zhang Yihua
Принадлежит:

The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, and a second HNPV alumina having a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc. Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates. 1. A hydroisomerization catalyst , comprising: at least one molecular sieve selective towards isomerization of n-paraffins,', 'a first alumina having a high nanopore volume and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, and', 'a second alumina having a high nanopore volume and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc;, 'a base extrudate comprising'}the catalyst further comprising at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table.2. The hydroisomerization catalyst of claim 1 , wherein the first alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g3. The hydroisomerization catalyst of claim 2 , wherein the second alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g.4. The hydroisomerization catalyst of claim 1 , wherein the second alumina has a nanopore volume in the 2 nm to 50 nm range of 0.7 to 2 cc/g.5. The hydroisomerization catalyst of claim 1 , wherein a pore size distribution plot for the base extrudate will indicate a maximum peak with a shoulder located at a pore size between 7 and 14 nm.6. The hydroisomerization catalyst of claim 1 , wherein the base extrudate has a nanopore volume in the 6 nm to 11 nm range of 0.25 to 0.4 cc/g claim 1 , a nanopore volume ...

Подробнее
Номер записи: 98
30-03-2017 дата публикации

METHOD FOR PRODUCING A CATALYST

Номер: US20170087539A1
Автор: BELTRAMINI Jorge, KONAROVA Muxina, TANG Fengqiu
Принадлежит:

Molybdenum sulphide containing catalysts are provided which have been produced using a microemulsion approach. The catalysts thereby produced have a unique morphology which directly translates into improved performance in the conversion of syngas to alcohol and in the selectivity of this reaction towards producing ethanol. 141-. (canceled)42. A method of producing a catalyst including the steps of:(a) providing a non-polar solvent;(b) forming MoS2 within the non-polar solvent by combining, in aqueous solution added to the non-polar solvent, a sulfide compound, and a molybdenum compound; and(c) adding a salt of a transition metal selected from the group consisting of nickel, cobalt, and iron to the non-polar solvent;to thereby to form a water-in-oil emulsion and produce the catalyst.43. The method of claim 42 , wherein the step of forming the MoS2 within the non-polar solvent is achieved by: (i) adding an aqueous solution of the sulfide to the non-polar solvent claim 42 , and (ii) adding an aqueous solution of the molybdenum compound to the non-polar solvent.44. The method of claim 42 , wherein the non-polar solvent is selected from the group consisting of oils claim 42 , aliphatic hydrocarbons claim 42 , saturated cyclic hydrocarbons claim 42 , aromatic hydrocarbons claim 42 , and halogenated hydrocarbons.45. The method of claim 42 , wherein the aqueous solution of the molybdenum compound is added to the non-polar solvent containing the aqueous solution of the sulfide.46. The method of claim 42 , wherein the sulfide compound is any at least water-soluble sulfide source.47. The method of claim 42 , wherein the molybdenum compound is any molybdenum containing compound that is water soluble.48. The method of claim 47 , wherein the molybdenum compound is selected from the group consisting of ammonium molydates claim 47 , molybdenum oxides and water soluble alkali metal claim 47 , and alkaline earth metal molybdates.49. The method of claim 42 , wherein the salt of the ...

Подробнее
Номер записи: 99
30-03-2017 дата публикации

Hydrocarbon Conversion

Номер: US20170088490A1
Автор: Chen Tan-Jen, Keusenkothen Paul F.
Принадлежит:

The invention relates to the conversion of paraffinic hydrocarbon to oligomers of greater molecular weight and/or to aromatic hydrocarbon. The invention also relates to equipment and materials useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading. Corresponding olefinic hydrocarbon is produced from the paraffinic hydrocarbon in the presence of a dehydrogenation catalyst containing a catalytically active carbonaceous component. The corresponding olefinic hydrocarbon is then converted by oligomerization and/or dehydrocyclization in the presence of at least one molecular sieve catalyst. 1. A process for producing aromatics , comprising:{'sub': n+', 'm−, '(a) providing a feed which comprises ≧1 wt. % of a first hydrocarbon and further comprises a second hydrocarbon, wherein (i) the first hydrocarbon comprises C paraffinic hydrocarbon, (ii) the second hydrocarbon comprises C hydrocarbon, (iii) n is a positive integer ≧2 and m is a positive integer ≦n−1, and (iv) the feed has a first hydrocarbon:second hydrocarbon molar ratio in the range of from 0.001 to 100;'}{'sup': '2', '(b) providing a first multi-component catalyst, the first catalyst having dehydrogenation functionality and comprising (i) ≧10 wt. % of at least one inorganic oxide component having a surface area ≧10 m/g and a pore volume ≧0.1 ml/g, (ii) ≧0.01 wt. % of at least one catalytically active carbonaceous component, and (iii) ≧0.05 wt. % of at least one element selected from Groups 5-11 of the Periodic Table;'}(c) providing a second multi-component catalyst, the second catalyst having dehydrocyclization functionality and comprising ≧10 wt. % of a molecular sieve component and ≧0.005 wt. % of a dehydrogenation component comprising at least one element selected from Groups 3 to 13 of the Periodic Table;{'sub': n+', 'm−, "(d) reacting the feed in the presence of the first catalyst under catalytic dehydrogenation conditions effective for dehydrogenating ≧10 wt. % of the C ...

Подробнее
Номер записи: 100