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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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 25. Отображено 25.
14-05-2024 дата публикации

Member for continuous production of carbon nanobrush, and method for continuous production of carbon nanobrush

Номер: US0011981568B2
Автор: Ryota Yuge, Hideyuki Satou
Принадлежит: NEC CORPORATION, NEC Corporation

An object of the present invention is to provide a member and a method for producing a fibrous carbon nanohorn aggregate with high efficiency. According to an embodiment of the present invention, there is provided a carbon nanohorn aggregate production member for producing a fibrous carbon nanohorn aggregate in which single-walled carbon nanohorns are aggregated radially and are connected in a fibrous form, comprising: a target fixing jig having a target housing section on an upper surface which has a partition and is capable of mounting a plurality of rod-shaped catalyst-containing carbon targets without making a mutual contact, and a jig guide for movement on a side surface; a jig for target fixing jig movement which is slidably engaged with the jig guide for movement; and a target fixing jig guide which is inclined downward, and is equipped with a guide rail which is adapted to an arrangement of the plurality of rod-shaped catalyst-containing carbon targets, wherein the target fixing ...

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Номер записи: 1
18-04-2024 дата публикации

COMPLEX OXIDE AND METHOD FOR PRODUCING THE SAME

Номер: US20240123429A1
Автор: Takahiro SATO, Satoshi WATANABE
Принадлежит:

An object of the present invention is to provide a CeO2—ZrO2-based complex oxide having a sufficiently reduced particle size and a method for producing the CeO2—ZrO2-based complex oxide, and there are provided a complex oxide containing a zirconium element, a cerium element, and optionally another rare earth metal element, wherein D50and D90of the complex oxide measured by a laser diffraction scattering particle size distribution measurement method are 0.5 μm or less and 1 μm or less, respectively, and a method for producing the complex oxide.

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Номер записи: 2
11-06-2024 дата публикации

Method for transesterification of carboxylic acid esters

Номер: US0012006286B2
Автор: Jamal Ftouni, Matthias Welker, Samuel Rentsch
Принадлежит: OMYA INTERNATIONAL AG

The present invention relates to a method for transesterification of carboxylic acid esters by heterogeneous catalysis using a catalyst that is obtainable by calcination of surface-reacted calcium carbonate. The invention further relates to the use of said method in the production of fuel or fuel components, such as biodiesel. Further aspects of the present invention relate to the transesterified ester obtainable by the inventive method and to its use as fuel or as fuel component. Still another aspect of the present invention relates to a corresponding transesterification catalyst and to its use in transesterification reactions.

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Номер записи: 3
09-05-2024 дата публикации

REDUCING AGENT, GAS PRODUCTION METHOD, AND METHOD FOR INCREASING CONVERSION EFFICIENCY

Номер: US20240150181A1
Автор: Risa SAKURAI, Keisuke IIJIMA, Koji TAKIZAWA, Souichirou SUZUKI
Принадлежит: SEKISUI CHEMICAL CO., LTD.

There are provided, for example, a reducing agent that can be used in a chemical looping method, a method of producing a gas using such a reducing agent and a method of increasing conversion efficiency, through which the efficiency of converting carbon dioxide into carbon monoxide is high. The reducing agent of the present invention is a reducing agent that produces valuables containing carbon by reducing carbon dioxide, including a granular support having a plurality of pores and an angle of repose of 45° or more and an oxygen carrier which is supported on the support and has oxygen ion conductivity. In addition, in the reducing agent of the present invention, the support preferably has an average pore size of 0.1 nm or more.

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Номер записи: 4
04-06-2024 дата публикации

Chromium-catalyzed production of alcohols from hydrocarbons

Номер: US0011999679B2
Автор: Carlos A. Cruz, Masud M. Monwar, Max P. McDaniel, Jared Barr, Kathy S. Clear, William C. Ellis
Принадлежит: Chevron Phillips Chemical Company LP

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support.

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Номер записи: 5
28-03-2024 дата публикации

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTERING EFFICIENCY

Номер: US20240100478A1
Автор: Jan SCHOENHABER, Gabriela KUCEROVA, Naina DEIBEL, Carolin BRAUN, Massimo COLOMBO, Meike Antonia GOTTHARDT
Принадлежит: UMICORE AG & CO. KG

The present invention relates to a wall flow filter for removing particles from the exhaust gas of internal combustion engines, which comprises a wall flow filter substrate having a length L and coatings Z and F that differ from one another, wherein the wall flow filter substrate comprises channels E and A, which extend in parallel between a first and a second end of the wall flow filter substrate, are separated by porous walls and form surfaces OE or OA, and wherein the channels E are closed at the second end and the channels A are closed at the first end, and wherein the coating Z is located in the porous walls and/or on the surfaces OA, but not on the surfaces OE, and comprises palladium and/or rhodium a cerium/zirconium mixed oxide, characterized in that the coating F is located in the porous walls and/or on the surfaces OE, but not on the surfaces O, and comprises a ceramic membrane and no precious metal.

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Номер записи: 6
13-06-2024 дата публикации

TEMPERATURE CONTROL DEVICE FOR LIQUID HYDROGEN STORAGE TANK, AND LIQUID HYDROGEN STORAGE SYSTEM USING SAME

Номер: US20240191841A1
Автор: Hwa Long YOU, Tae Hoon KIM, Kyu Hyung DO, Byung Il CHOI, Ae Jung YOON
Принадлежит:

Provided is a liquid hydrogen storage system including: a hydrogen storage tank coupled to a vessel hull and configured to store liquid hydrogen; a catalyst for conversion of para hydrogen in the liquid hydrogen into ortho hydrogen; and a catalyst holder disposed at an upper portion of the hydrogen storage tank and configured to hold the catalyst. A catalytic reaction to convert the para hydrogen into the ortho hydrogen occurs as the temperature of the upper portion of the hydrogen storage tank increases.

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Номер записи: 7
14-05-2024 дата публикации

Method of preparing solid-supported palladium catalyst

Номер: US0011980870B2
Автор: M. Nasiruzzaman Shaikh
Принадлежит: King Fahd University of Petroleum and Minerals, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

A solid-supported Pd catalyst is suitable for C—C bond formation, e.g., via Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions, with a support that is reusable, cost-efficient, regioselective, and naturally available. Such catalysts may contain Pd nanoparticles on jute plant sticks (GS), i.e., Pd@GS, and may be formed by reducing, e.g., K2PdCl4with NaBH4in water, and then used this as a “dip catalyst.” The dip catalyst can catalyze Suzuki-Miyaura and Mizoroki-Heck cross coupling-reactions in water. The catalysts may have a homogeneous distribution of Pd nanoparticles with average dimensions, e.g., within a range of 7 to 10 nm on the solid support. Suzuki-Miyaura cross-coupling reactions may achieve conversions of, e.g., 97% with TOFs around 4692 h−1, Mizoroki-Heck reactions with conversions of, e.g., a 98% and TOFs of 237 h−1, while the same catalyst sample may be used for 7 consecutive cycles, i.e., without addition of any fresh catalyst.

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Номер записи: 8
16-05-2024 дата публикации

EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST

Номер: US20240157340A1
Автор: Hiroki TANAKA, Itaru MORITA, Yuki NAGAO, Yoshinori ENDO
Принадлежит:

An object of the present invention is to provide an exhaust gas purifying catalyst composition and an exhaust gas purifying catalyst, each of which has improved exhaust gas purification performance, and the present invention provides an exhaust gas purifying catalyst composition containing a Ce-based oxide particle, a Ce—Zr-based composite oxide particle, an Al-based oxide particle, and a noble metal element, wherein an amount of Ce in terms of CeO2in the Ce-based oxide particle is 90% by mass or more based on a mass of the Ce-based oxide particle, wherein an amount of Ce in terms of CeO2in the Ce—Zr-based composite oxide particle is 5% by mass or more and 90% by mass or less based on a mass of the Ce—Zr-based composite oxide particle, wherein the Ce-based oxide particle has an average particle size of 0.10 μm or more and 15 μm or less, and wherein an amount of the Ce-based oxide particle in the exhaust gas purifying catalyst composition is 2.0% by mass or more and 30% by mass or less based ...

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Номер записи: 9
25-06-2024 дата публикации

Processes for direct conversion of crude oil to light olefins and light aromatics through steam enhanced catalytic cracking over a core shell cracking catalyst

Номер: US0012018215B1
Автор: Aaron Chi Akah, Musaed Salem Al-Ghrami, Abdullah Mohammed Aitani, Mohammed Abdul Bari Siddiqui, Ziyauddin R. Qureshi
Принадлежит: Saudi Arabian Oil Company, King Fahd University of Petroleum and Minerals, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

A process for converting a hydrocarbon feed may comprise contacting a hydrocarbon feed with steam in the presence of a cracking catalyst under steam enhanced catalytic cracking conditions. The contacting the hydrocarbon feed with the steam in the presence of the cracking catalyst may cause at least a portion of the hydrocarbon feed to undergo steam catalytic cracking reactions to produce a cracked effluent comprising C2to C4olefins, C6to C10aromatic compounds, or both. The cracking catalyst may be a nanoparticle comprising: a core and a shell. The core may comprise one or more ZSM-5 zeolite particles and have an outer surface. The shell may comprise a plurality of fibers extending radially outward from the outer surface of the core. The plurality of fibers may comprise silica.

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Номер записи: 10
27-06-2024 дата публикации

Decarbonized Olefins Production using Process Intensification

Номер: US20240207821A1
Автор: Mitrajit Mukherjee, Vamsi M. Vadhri, Narenda Joshi, Sankaran Sundaresan
Принадлежит:

A mixed metal oxide Selective Oxygen Carrier (SOC) suitable for the selective oxidation of hydrogen comprising bismuth oxides, rare earth oxides, and a dopant of Ti, Zr, and Hf and is characterizable by a high level of oxygen carrying capacity, selectivity and stability. The SOC can be synthesized using a sol gel procedure, co-precipitating salts, or the incipient wetness method. The invention includes a process of dehydrogenating a paraffin over a SOC. A SOC can also be used to catalytically crack hydrocarbons.

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Номер записи: 11
16-05-2024 дата публикации

METHOD FOR THE HYDROGENATION OF AROMATIC NITRO COMPOUNDS

Номер: US20240157343A1
Автор: Bernd Pennemann, Lennart Sandbrink, Eberhard Zirngiebl, Thomas Kaese, Hans-Jürgen Quella, Paul Sprenger, Daniel Ullrich, Marc Williams
Принадлежит:

The present invention relates (i) to a method for producing a doped copper-tetraammine-salt-based hydrogenation catalyst suitable for the hydrogenation of an aromatic nitro compound such that an aromatic amine is obtained, the hydrogenation catalyst comprising copper in metal form or in oxidic form and a doping metal selected from iron, cobalt, manganese, vanadium, zinc or a mixture of two or more thereof in metal form or in oxidic form on a carrier, the carrier comprising silicon dioxide shaped bodies and/or silicon carbide shaped bodies, (ii) to a doped copper-tetraammine-salt-based hydrogenation catalyst obtainable using the aforementioned method according to the invention, and (iii) to a method for producing an aromatic amine, comprising the hydrogenation of an aromatic nitro compound in the presence of a doped copper-tetraammine-salt-based hydrogenation catalyst comprising copper in metal form or in oxidic form and comprising a doping metal in metal form or in oxidic form on a carrier ...

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Номер записи: 12
02-04-2024 дата публикации

Method for fabricating nickel-cerium dioxide-aluminum oxide hybrid nanoparticle cluster catalyst, nickel-cerium dioxide-aluminum oxide hybrid nanoparticle cluster catalyst and method for synthesizing polyetheramine

Номер: US0011944960B2
Автор: De-Hao Tsai, Hung-Yen Chang, Guan-Hung Lai
Принадлежит: NATIONAL TSING HUA UNIVERSITY, Chang Chun Plastics Co., Ltd., Chang Chun Petrochemical Co., LTD., DAIREN CHEMICAL CORP.

The present disclosure provides a method for fabricating a nickel-cerium dioxide-aluminum oxide hybrid nanoparticle cluster catalyst. The method includes a solution preparation step, an aerosolizing step, a drying step, a first calcining step, a reducing gas adding step, and a second calcining step. The solution preparation step is provided for preparing a precursor solution. The aerosolizing step is performed for obtaining an atomized droplet. The drying step is performed for converting to a precursor crystallite. The first calcining step is performed for obtaining an oxidation state catalyst. The reducing gas adding step is performed for adding hydrogen. The second calcining step is performed for obtaining the nickel-cerium dioxide-aluminum oxide hybrid nanoparticle cluster catalyst.

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Номер записи: 13
30-05-2024 дата публикации

SYNTHESIS OF ZEOLITES WITH INTERCONNECTED NANOSHEETS

Номер: US20240173705A1
Автор: Jeffrey D. Rimer, Rishabh Jain
Принадлежит: University of Houston System

Interconnected zeolite nanosheets with a structural motif resembling self-pillared pentasil zeolites are synthesized through the use of MEL or MFI-type zeolites as crystalline seeds. The use of MEL- or MFI-type zeolites as crystalline seeds induces the spontaneous formation of pillared zeolites, thus avoiding, for the first time, the use of any organic or branching template for the crystallization of these hierarchical structures.

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Номер записи: 14
18-04-2024 дата публикации

CATALYST MATERIALS WITH TUNABLE ACTIVITY

Номер: US20240123430A1
Автор: Vasily SIMANZHENKOV, Xiaoliang GAO, Marie BARNES, Perry DE WIT
Принадлежит:

A catalyst material includes molybdenum (Mo): vanadium (V). the molar ratio of Mo:V being between 1:0.12 and 1:0.49; tellurium (Te), the molar ratio of Mo:Te being between 1:0.01 and 1:0.30; niobium (Nb), the molar ratio of Mo:Nb being between 1:0.01 and 1:0.30; and beryllium (Be), the molar ratio of Mo:Be being from 1:1 to 1:50.

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Номер записи: 15
11-04-2024 дата публикации

METAL-SEMICONDUCTOR HYBRID STRUCTURES, SYNTHESES THEREOF, AND USES THEREOF

Номер: US20240116035A1
Автор: Shutang CHEN, Gugang CHEN
Принадлежит:

Aspects of the present disclosure generally relate to semiconductor nanoparticles, metal-semiconductor hybrid structures, processes for producing semiconductor nanoparticles, processes for producing metal-semiconductor hybrid structures, and processes for producing conversion products. In an aspect is provided a process for producing a metal-semiconductor hybrid structure that includes introducing a first precursor comprising a metal from Group 11-Group 14 to an amine and an anion precursor to form a semiconductor nanoparticle comprising the Group 11-Group 14 metal; introducing a second precursor comprising a metal from Group 7-Group 11 to the semiconductor nanoparticle to form a metal-semiconductor mixture; and introducing the metal-semiconductor mixture to separation conditions to produce the metal-semiconductor hybrid structure. In another aspect is provided a metal-semiconductor hybrid structure that includes a first component comprising a metal from Group 11-Group 14 and an element ...

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Номер записи: 16
28-03-2024 дата публикации

CATALYST SYSTEMS AND METHODS FOR PRODUCING OLEFINS USING THE SAME

Номер: US20240100510A1
Автор: Lin Luo, Yang Yang, Matthew T. Pretz
Принадлежит: Dow Global Technologies LLC

According to one or more embodiments of the present disclosure, a fluidization promoter useful for dehydrogenation includes from 0.1 wt. % to 10 wt. % gallium, from 5 ppm to 500 ppm platinum, less than 5 wt. % alkali metal or alkaline earth metal, and a support material. A median particle size of the fluidization promoter is from 20 μm to 50 μm. Catalyst systems useful for dehydrogenation and methods for producing olefins using the same are also disclosed.

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Номер записи: 17
21-05-2024 дата публикации

Partial oxidation process of hydrocarbons

Номер: US0011986803B2
Автор: Jungup Bang, Do Heui Kim, Gyo Hyun Hwang, Jongwook Jung, Yongju Bang, Youngseok Ryou, Jeongeun Kim
Принадлежит: LG CHEM, LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

A partial oxidation process of hydrocarbons is provided, including bringing an inlet gas into contact with a catalyst, the inlet gas including a hydrocarbon raw material gas and a hydrogen chloride gas, wherein the catalyst includes a catalyst material including palladium (Pd), which catalyst material is supported on a carrier including cerium oxide (CeO2) and an amount of catalyst material supported on the carrier is 2 wt % to 10 wt % based on a total weight of the catalyst.

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Номер записи: 18
18-06-2024 дата публикации

Method for converting a gas comprising carbon monoxide into methane by means of a catalytic material containing praseodymium and nickel on alumina

Номер: US0012012367B2
Автор: Arnaud Lahougue, Emmanuel Rohart, Gaelle Gicquel, Sandra Capela, Yilmaz Kara, Stephane Fortin, Myriam De Saint Jean
Принадлежит: ENGIE, ENERCAT

The invention relates to a method for converting a gas into methane (CH4) which includes: a step of activating a catalytic material including praseodymium oxide (Pr6O11) associated with nickel oxide (NiO) and alumina (Al2O3), the respective proportions of which are, relative to the total mass of these three compounds: Pr6O11: 1 wt % to 20 wt %, NiO: 1 wt % to 20 wt %, and Al2O3: 60 to 98 wt %; and a step of passing a gas including at least one carbon monoxide (CO) over the activated catalytic material.

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Номер записи: 19
27-06-2024 дата публикации

A CATALYTICALLY ACTIVE PRODUCT AND A METHOD OF PRODUCING SUCH A CATALYTICALLY ACTIVE PRODUCT

Номер: US20240207834A1
Автор: Fredrik SILVERSAND
Принадлежит: Catator AB

A method of producing a catalytically active product (10) is disclosed. The method comprises providing a substrate (11) and depositing a first material (12) and particles (13) of a second material on the substrate, wherein the particles (13) of the second material have a higher melting point than the first material (12). Then, the substrate (11) with the first material (12) and said particles (13) is heated to a temperature where the first material (12) is melted and the particles (13) of the second material are not melted, wherein the first material (12) and the particles (13) are adhered to the substrate (11), wherein particles (13) are partly embedded in the first material (12) and form a rough surface. A ceramic material is deposited on the rough surface formed by the particles (13) to form a ceramic layer (14) thereon, wherein a catalytically active material (16) id added to the ceramic layer (14). Disclosed is also a catalytically active product.

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Номер записи: 20
23-05-2024 дата публикации

MODIFIED ZEOLITE CATALYST COMPOSITIONS AND METHODS OF USE

Номер: US20240165600A1
Автор: Dorai Ramprasad
Принадлежит: W.R. Grace & Co.-Conn.

A modified zeolite catalyst composition is disclosed formed from a zeolite, alumina binder, and matrix. The modified zeolite catalyst composition may contain fluorine. Also disclosed, are methods for the preparation of pyridine and/or its alkylpyridine derivatives in high yield utilizing the modified zeolite catalyst composition.

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Номер записи: 21
25-04-2024 дата публикации

PROCESSES FOR PREPARING C2 TO C4 HYDROCARBONS AND PROCESS FOR PREPARING A FORMED HYBRID CATALYST

Номер: US20240132423A1
Автор: Glenn Pollefeyt, Fang Du, Ewa Tocha, Alexey Kirilin, Christopher Ho, David F. Yancey, Davy L. S. Nieskens, Andrzej Malek
Принадлежит: Dow Global Technologies LLC

A process for preparing C2to C4hydrocarbons includes introducing a feed stream including hydrogen gas and a carbon-containing gas selected from the group consisting of carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor, and converting the feed stream into a product stream including C2to C4hydrocarbons in the reaction zone in the presence of a formed hybrid catalyst. The formed hybrid catalyst includes a metal oxide catalyst component including gallium oxide and zirconia, a microporous catalyst component that is a molecular sieve having 8-MR (Membered Ring) pore openings, and a binder including alumina, zirconia, or both.

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Номер записи: 22
09-05-2024 дата публикации

EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST

Номер: US20240149252A1
Автор: Itaru MORITA, Hiroki TANAKA, Yuki NAGAO, Yoshinori ENDO
Принадлежит:

An object of the present invention is to provide an exhaust gas purifying catalyst composition and an exhaust gas purifying catalyst, each of which has improved exhaust gas purification performance, and the present invention provides an exhaust gas purifying catalyst composition containing a Ce-based oxide particle, a Ce—Zr-based composite oxide particle, and a noble metal element, wherein the Ce-based oxide particle contains at least one type of additional element selected from Al, Mg, La, Pr, Y, and Nd, and wherein an amount of the at least one type of additional element in terms of oxide in the Ce-based oxide particle is 0.1% by mass or more and 20% by mass or less based on a mass of the Ce-based oxide particle.

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Номер записи: 23
16-05-2024 дата публикации

CATALYST, AND METHOD FOR PRODUCING CYCLOPENTENE

Номер: US20240158319A1
Автор: Chihiro NISHINOHARA, Takashi SASANUMA
Принадлежит: ZEON CORPORATION

The purpose of the present invention is to provide a catalyst that enables a hydrogenation reaction of cyclopentadiene to cyclopentene in a gas phase that exhibits both a high conversion rate and high selectivity, and a method for producing the cyclopentene in a gas phase that exhibits both a high conversion rate and high selectivity. A catalyst according to the disclosure and a method for producing cyclopentadienecyclopentene according to the disclosure are a catalyst and a method for producing cyclopentene using the catalyst that is used in a hydrogenation reaction of cyclopentadiene in a gas phase to form the cyclopentene, the catalyst including palladium (Pd) and a titanium dioxide (TiO2) support, wherein the titanium dioxide (TiO2) support contains anatase-type titanium dioxide (TiO2).

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Номер записи: 24
16-05-2024 дата публикации

PORE-ENCAPSULATED CATALYSTS FOR SELECTIVE HYDROGENOLYSIS OF PLASTIC WASTE

Номер: US20240157338A1
Автор: Aaron D. SADOW, Wenyu HUANG, Frédéric A. PERRAS, Marek PRUSKI, Akalanka TENNAKOON, Xun WU, Anne M. LAPOINTE
Принадлежит:

Disclosed herein is a catalyst which comprises a silica core having an outer surface and a mesoporous silica shell having an outer surface and an inner surface with the inner surface being inside the outer surface of said mesoporous silica shell proximate to and surrounding the outer surface of said silica core. Wherein the outer surface of the mesoporous silica shell has openings leading to pores within the mesoporous silica shell which extend toward the outer surface of said silica core. The catalyst also includes catalytically active metal nanoparticles positioned within the pores proximate to said core, wherein the catalytic metal nanoparticles comprise about 0.0001 wt % to about 1.0 wt % of the catalyst. Also disclosed are methods of making the catalyst and using it to carry out a process for catalytically hydrogenolysizing a polyolefinic polymer.

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Номер записи: 25