Hydroprocessing catalysts and methods for making thereof

An improved process to make a slurry catalyst for the upgrade of heavy oil feedstock is provided. In the process, at least a metal precursor feedstock is portioned and fed in any of the stages: the promotion stage; the sulfidation stage; or the transformation stage of a water-based catalyst precursor to a slurry catalyst. In one embodiment, the promoter metal precursor feedstock is split into portions, the first portion is for the sulfiding step, the second portion is for the promotion step; and optionally the third portion is to be added to the transformation step in the mixing of the sulfided promoted catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In another embodiment, the Primary metal precursor feedstock is split into portions.

Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides

A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least one period of exposure to a reducing atmosphere. The catalyst has an initial activity and the catalyst has a final activity after the at least one period of exposure to the reducing atmosphere. The final activity is within 30% of the initial activity at a temperature between 200 and 500° C.

Nanoporous photocatalyst having high specific surface area and high crystallinity and method for preparing the same

Disclosed is a nanoporous photocatalyst having a high specific surface area and high crystallinity and a method for preparing the same, capable of preparing nanoporous photocatalysts, which satisfy both of the high specific surface area of 350 m 2 /g to 650 m 2 /g and high crystallinity through a simple synthetic scheme, in mass production at a low price. The nanoporous catalyst having a high specific area and high crystallinity includes a plurality of nanopores having an average diameter of about 1 nm to about 3 nm. A micro-framework of the nanoporous photocatalyst has a single crystalline phase of anatase or a bicrystalline phase of anatase and brookite, and a specific surface area of the nanoporous photocatalyst is in a range of about 350 m 2 /g to 650 m 2 /g.

Catalyst support materials with oxygen storage capacity (osc) and method of making thereof

A new type of catalyst support with oxygen storage capacity (OSC) and methods of making the same are disclosed. The composition ratio is x(Ce 1-w Zr w 0 2 ):yM:zL:(1-x-y-z)AI 2 0 3 , where Ce 1-w Zr w 0 2 is the oxygen storage composition with stabilizer Zr0 2 , molar ratio (w) in the range of 0 to about 0.8, and a weight ratio (x) of about 0.05 to about 0.8; M is an interactive promoter for oxygen storage capacity with a weight ratio (y) of 0 to about 0.10; and L is a stabilizer for the support Al 2 0 3 with weight ratio (z) of from 0 to about 0.10. In some cases, M or L can act as both OSC promoter and thermal stabilizer. The weight percentage range of ceria-zirconia and other metal and rare earth oxides (x+y+z) is from about 5 to about 80% relative to total oxides. Combining platinum group metals (PGM) and adhesive with the catalyst supports, a new wash coat made therefrom is provided that comprises a mixture of catalyst support materials according to the relationship (a)RE-Ce—Zr0 2 +(3)CZMLA+(1-a-β)RE-AI 2 0 3 , where RE-Ce—Zr0 2 is a commercial OSC material of rare earth elements stabilized ceria zirconia having a weight ratio (a) ranging from 0 to about 0.7; CZMLA is the catalyst support material of the present disclosure having a weight ratio (β) ranging from about 0.2 to about 1 such that (α+β)<1; and RE-AI 2 0 3 is rare earth element stabilized alumina having a weight ratio equal to (1-α-β). The new wash coat made therefrom exhibits a lower activation temperature compared with traditional formulation of wash coat by at least 50° C. The new wash coat made therefrom also requires less RE-Ce—Zr0 2 oxide and/or less PGM in the formulation of emission control catalyst for gasoline and diesel engines.

Production of catalytically active activated carbons

The invention is directed to a method for preparing catalytically active activated carbon, to catalytically active activate carbon obtainable by the method, and to the use of the catalytically active activated carbon. The method of the invention method comprises the steps of: i) mixing charcoal with one or more organic nitrogen-containing compounds, said nitrogen-containing compounds comprising, next to a first nitrogen atom, at least two or more further heteroatoms selected from the group consisting of nitrogen and oxygen, wherein said further heteroatoms have a lone pair; ii) drying the mixture obtained in step i); iii) activating the dried mixture using steam, thereby producing catalytically active activated carbon.

Method for Transforming Nitrogen-Containing Compounds

The invention relates to a method for the selective catalytic transformation of nitrogen-containing compounds. The transformation relates to the selective catalytic reduction (SCR) of nitrogen oxides, or the selective catalytic oxidation (SCO) of nitrogen hydrides and nitrogen-containing organic compounds, preferably in waste gas flows of combustion processes with motors and without motors and industrial applications. The catalytic converter comprises a titano-(silico)-alumo-phosphate.

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

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.

Carbon supported catalyst comprising a modifier and process for preparing the carbon supported catalyst

The invention is related to a carbon supported catalyst comprising a carbon-comprising support with a BET surface area in a range from 400 m 2 /g to 2000 m 2 /g, a modifier comprising at least one mixed metal oxide, comprising niobium and titanium, and/or a mixture, comprising niobium oxide and titanium oxide, a catalytically active metal compound, wherein the catalytically active metal compound is platinum or an alloy comprising platinum and a second metal or an intermetallic compound comprising platinum and a second metal, the second metal being selected from the group consisting of cobalt, nickel, chromium, copper, palladium, gold, ruthenium, scandium, yttrium, lanthanum, niobium, iron, vanadium and titanium. The invention is further related to a process for preparing the carbon supported catalyst.

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

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.

Polyolefin production with chromium-based catalysts

A method including contacting a chromium-based catalyst with a reducing agent in a solvent to lower an oxidation state of at least some chromium in the chromium-based catalyst to give a reduced chromium-based catalyst, drying the reduced chromium-based catalyst at a temperature, and adjusting the temperature to affect the flow index response of the reduced chromium-based catalyst.

Shaped porous carbon products

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.

Catalyst System and Use in Heavy Aromatics Conversion Processes

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.

Middle distillate hydrocracking catalyst

The present invention is directed to an improved hydrocracking catalyst containing an amorphous silica-alumina (ASA) base and alumina support. The ASA base is characterized as having a high nanopore volume and low particle density. The alumina support is characterized as having a high nanopore volume. Hydrocracking catalysts employing the combination high nanopore volume ASA base and alumina support exhibit improved hydrogen efficiency, and greater product yield and quality, as compared to hydrocracking catalysts containing conventional ASA base and alumina components.

Silver-carrying zeolite molded article

Provided are: a silver-carrying zeolite molded article in which aggregation of silver is inhibited and which has excellent capability of dispersing silver, when compared to conventional silver-carrying zeolite molded articles; and a method for producing the silver-carrying zeolite molded article. In the silver-carrying zeolite molded article, the molar ratio of Si/Al2 is 2.0-3.0, the molar ratio of (alkali metal+Ag)/Al is 0.9-1.1, the total amount of SiO2, Al2O3, Ag2O, and alkali metal oxides is 90 wt % or more, the contained amount of silver ions is 5 wt % or more, and only a single type of zeolite is contained. The molded article can be produced by subjecting a zeolite molded article having zeolite purity of 90% or more to an ion exchange treatment using a silver-containing aqueous solution.

Methanation Catalyst

The invention relates to use of a catalyst comprising particles of nickel dispersed in a porous silica matrix for catalysing a methanation reaction. There is also described a method for methanation of a feedstock at least comprising gases carbon monoxide and hydrogen, said method comprising contacting the feedstock with the catalyst.

Carbon-based noble metal-transition metal catalyst enabling high selective conversion and production method therefor

Provided are a carbon-based noble metal-transition metal composite catalyst enabling high selective conversion of a carboxylic acid functional group into an alcohol functional group by pre-treating a carbon carrier including a predetermined ratio or more of mesopores, and a production method therefor.

Small crystal zsm-5, its synthesis and use

A molecular sieve having the framework structure of ZSM-5 is described comprising crystals having an external surface area in excess of 100 m2/g (as determined by the t-plot method for nitrogen physisorption) and a unique X-ray diffraction pattern.

Extrudable composition comprising a titanium-containing zeolitic material having framework type mww

A process for preparing an extrudable composition comprising a titanium-containing zeo-litic material having framework type MWW, the process comprising providing a titanium-containing zeolitic material having framework type MWW, having a water absorption ca-pacity of at least 11 weight-%, subjecting the titanium-containing zeolitic material having framework type MWW an acid treatment, optionally incorporating zinc in the acid-treated titanium-containing zeolitic material having framework type MWW; preparing a composi-tion comprising the titanium-containing zeolitic material having framework type MWW obtained from (ii) or (iii), a precursor of a silica binder, water, and a kneading agent, wherein the composition does not comprise a polyethylene oxide.

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

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.

Materials and methods for production of activated carbons

The invention is directed to improved methods for producing high-quality activated carbons from biochar. The invention also provides materials and methods for creation of activated carbons useful for purification of water, adsorption of gases or vapors, and catalyst supports. The methods include ash modification, physical activation, the addition of a catalyst, chemical activation, and removal and/or recycling of the catalyst. The usefulness of the present method is that it results in the production of a high-quality activated carbon from a waste product of the biofuel manufacturing process, thereby increasing the economic sustainability and viability of the biofuel production process itself.

METHOD FOR TRAPPING AND DECONTAMINATING A GASEOUS MEDIUM IN THE PRESENCE OF A MONOLITH COMPRISING TiO2 AND SILICA

Method for treating a gaseous feedstock containing molecular oxygen and one or more volatile compounds, which method comprises the following steps: a) bringing said gaseous feedstock containing molecular oxygen and one or more volatile organic compounds into contact with a monolith comprising silica and titanium dioxide, said monolith comprising a type-I macropore volume, of which the diameter of the pores is greater than 50 nm and less than or equal to 1000 nm, of between from 0.1 to 3 ml/g, and a type-II macropore volume, of which the diameter of the pores is greater than 1 μm and less than or equal to 10 μm, of between from 1 to 8 ml/g; b) irradiating said monolith with at least one irradiation source producing at least one wavelength lower than 400 nm in order to convert said volatile organic compounds into carbon dioxide, said step b) being carried out at a temperature between −30° C. and +200° C. and at a pressure between 0.01 MPa and 70 MPa.

Filtration media for removing chloramine, chlorine and ammonia, and method of making the same

An activated carbon-based media for efficient removal of chloramines as well as chlorine and ammonia from an aqueous stream is presented, and a method for making the same. The method involves preparing activated carbon that remove chloramines efficiently from chloramine-rich aqueous media. In particular, this application relates to the use of high performance catalytically active carbon for an efficient removal of chloramine from drinking water in the form of a solid carbon block or granular carbon media. The activated carbon is treated with a nitrogen-rich compound, such as, melamine.

Low-temperature oxidation catalyst with particularly marked hydrophobic properties for the oxidation of organic pullutants

The present invention relates to a catalyst comprising a macroporous noble metal-containing zeolite material and a porous SiO 2 -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.

Carbonylation process and catalyst system therefor

A catalyst system for a liquid phase carbonylation reaction comprising a homogeneous acid catalyst component and a porous solid component, in particular for use in the formation of glycolic acid by carbonylation of formaldehyde. The homogeneous acid catalyst component is, for instance, sulphuric acid whilst the solid component can be unfunctionalised silica. A process for the carbonylation of an aldehyde to form a carboxylic′ acid or derivative thereof is also described. The process comprises the steps of contacting the catalyst with carbon monoxide, water and the aldehyde.

Catalyst systems that include metal co-catalysts for the production of propylene

Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; dispersing a solid metal-based co-catalyst onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.

CATALYST COMPOSITE AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx

The present invention relates to a process for the preparation of a catalyst for selective catalytic reduction comprising• (i) preparing a mixture comprising a metal-organic framework material comprising an ion of a metal or metalloid selected from groups 2-5, groups 7-9, and groups 11-14 of the Periodic Table of the Elements, and at least one at least monodentate organic compound, a zeolitic material containing a metal as a non-framework element, optionally a solvent system, and optionally a pasting agent,• (ii) calcining of the mixture obtained in (i); and further relates to a catalyst per se comprising a composite material containing an amorphous mesoporous metal and/or metalloid oxide and a zeolitic material, wherein the zeolitic material contains a metal as non-framework element, as well as to the use of said catalyst.

Supported perovskite-oxide composites for enhanced low temperature thermochemical conversion of co2 to co

Disclosed herein is a catalyst composite containing a perovskite-oxide and an oxide support, methods of preparing a catalyst composite containing a perovskite-oxide and an oxide support, and the use thereof for CO2 conversion by a reverse water gas shift chemical looping (RWGS-CL) process.

Hydrothermal performance of catalyst supports

A high surface area catalyst with a mesoporous support structure and a thin conformal coating over the surface of the support structure. The high surface area catalyst support is adapted for carrying out a reaction in a reaction environment where the thin conformal coating protects the support structure within the reaction environment. In various embodiments, the support structure is a mesoporous silica catalytic support and the thin conformal coating comprises a layer of metal oxide resistant to the reaction environment which may be a hydrothermal environment.

Aqueous Methods for Titanating A Chromium/Silica Catalyst

Methods for synthesizing a water-soluble titanium-silicon complex are disclosed herein. The titanium-silicon complex can be utilized to produce titanated solid oxide supports and titanated chromium supported catalysts. The titanated chromium supported catalysts subsequently can be used to polymerize olefins to produce, for example, ethylene based homopolymer and copolymers.

Exhaust gas purification underfloor catalyst and catalyst system

An exhaust gas purification underfloor catalyst characterized in having a catalyst layer having a lower layer and an upper layer, the lower layer containing alumina and CeO 2 , the noble metal content of the lower layer being at most 0.5 mass % in relation to the mass of the lower layer, the upper layer containing Rh, alumina, and CeO 2 , the amount of noble metals other than Rh contained being 1 mol % or less in relation to the total amount of noble metals contained in the upper layer, the total amount of CeO 2 contained in the lower layer and the upper layer being 14 g/L to 30 g/L, the amount of CeO 2 contained in the upper layer being 7 g/L to 25 g/L, and the amount of CeO 2 contained in the lower layer being 20% or more of the amount of CeO 2 contained in the upper layer.

Organosilica materials and uses thereof

Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula wherein each R 1 is a Z 1 OZ 2 Z 3 SiZ 4 group, wherein each Z 1 represents a hydrogen atom, a C 1 -C 4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z 2 and Z 3 independently represent a hydroxyl group, a C 1 -C 4 alkyl group, a C 1 -C 4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z 4 represents a C 1 -C 8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.

Alloy Nanoparticles Loaded Network Structure and Method for Producing Alloy Nanoparticles Loaded Porous Body

A protein template is added to a solution in which metal ions of iron and copper are dissolved to introduce the metal ions into the protein template; the protein template is separated from metal ions that have not been incorporated in the protein template; the metal ions that have been incorporated in the protein template are reduced to obtain a protein containing alloy nanoparticles of iron and copper; a sol or gel in which a co-continuous body is dispersed is frozen; the frozen sol or gel is dried in a vacuum to obtain a porous body; the porous body is allowed to support the alloy nanoparticle containing protein; and the protein is removed.

Honeycomb monolith structure loaded with nanozeolites for enhanced propylene selectivity in methanol conversion

A catalyst system and a process for methanol to light olefin conversion with enhanced selectivity towards propylene. The catalyst system comprises a honeycomb monolith catalyst support coated with aluminosilicate nanozeolite catalysts on the edges and inside the channels of the support structure. The aluminosilicate nanozeolite catalysts have not been pre-modified with a promoter metal. The catalyst system gives higher hydrothermal stability to the catalyst compared to randomly packed pellet catalysts and allows methanol to be converted to predominantly propylene at a low temperature, with decreased selectivity towards C 2 , higher olefins and paraffinic hydrocarbons.

Porous carbon and method of preparing the same

This disclosure relates to porous carbon and a method of preparing the same. The porous carbon of the present invention is derived from a carbonitride compound having a composition comprising metal and nitrogen. The porous carbon of the present invention comprises both micropores and mesopores, and has a large specific surface area, and thus, may be usefully used in various fields.

Method for producing hydrocarbon liquid fuel

A method for producing a hydrocarbon liquid fuel including hydrocracking a raw material oil in the presence of a hydrocracking catalyst, at a supplying pressure of hydrogen of from 0.1 to 1.0 MPa, a liquid space velocity of liquid volume of the raw material oil of from 0.05 to 10.0 hr −1 , and a flow rate of the hydrogen from 50 to 3,000 NL per 1 L of the raw material oil, wherein the hydrocracking catalyst is produced by a method including stirring a sulfur compound and a cracking catalyst in an aqueous medium to allow liquid-solid separation (step 1); stirring a solid product obtained in the step 1 and a metal component in an aqueous medium to allow liquid-solid separation (step 2); baking a solid product obtained in the step 2 (step 3); and reducing a solid product obtained in the step 3, or reducing a solid product obtained in the step 3, and then subjecting a reduced product to sulfurization treatment (step 4). According to the present invention, the hydrocracking of a raw material oil such as fats and oils and biomass retort oils, or a hydrocarbon or the like in petroleum oils, in a given composition can be accomplished by supplying a low-pressure hydrogen of a normal pressure or so.

Methods For Making Fluorided Chromium (VI) Catalysts, And Polymerization Processes Using the Same

Methods for preparing a fluorided chromium catalyst can include a step of calcining a supported chromium catalyst at a peak calcining temperature to produce a calcined supported chromium catalyst, followed by contacting the calcined supported chromium catalyst at a peak fluoriding temperature with a vapor comprising a fluorine-containing compound to produce the fluorided chromium catalyst. The peak fluoriding temperature can be at least 50° C. less, and often from 200° C. to 500° C. less, than the peak calcining temperature. Polymers produced using the fluorided chromium catalyst can have a beneficial combination of higher melt index, narrower molecular weight distribution, and lower long chain branch content.

Novel zeolite synthesis with a fluoride source

Provided are a novel synthesis technique for producing pure phase aluminosilicate zeolite and a catalyst comprising the phase pure zeolite in combination with a metal, and methods of using the same.

Organosilica materials and uses thereof

Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z 1 OZ 2 OSiCH 2 ] 3 (I), wherein each Z 1 and Z 2 independently represent a hydrogen atom, a C 1 -C 4 alkyl group or a bond to a silicon atom of another monomer and at least one other trivalent metal oxide monomer are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for catalysis etc., are also provided herein.

PROCESS FOR THE CATALYTIC REMOVAL OF CARBON DIOXIDE, NOx FROM EXHAUST GASES

The present invention relates to a method for the catalytic removal of carbon dioxide and NO x from waste gases in a reactor charged with activated carbon catalyst. The method comprises the following steps: a. saturating the catalyst with water b. saturating or partially saturating the waste gases with water, c. introducing the waste gases into the reactor, d. catalytically converting NOx into NO 2 − and, in parallel with this, catalytically converting CO 2 into carbon and O 2 on the same catalyst, e. washing out the activated carbon catalyst with water and discharging the carbon as a solid and NO 2 — dissolved in water or in the base.

Molding for a hydrophobic zeolitic material and process for its production

The present invention relates to A process for the production of a molding, comprising (I) providing a zeolitic material; (II) mixing the zeolitic material provided in step (I) with one or more binders; (III) kneading of the mixture obtained in step (II); (IV) molding of the kneaded mixture obtained in step (III) to obtain one or more moldings; (V) drying of the one or more moldings obtained in step (IV); and (VI) calcining of the dried molding obtained in step (V); wherein the zeolitic material provided in step (I) displays a water adsorption ranging from 1 to 15 wt.-% when exposed to a relative humidity of 85%, as well as to a molding obtainable or obtained according to the inventive process in addition to a molding per se and to their respective use.

Manufacturing method of honeycomb structure

The manufacturing method of the honeycomb structure includes a raw material preparing step of adding the powder of porous silica as the inorganic pore former to a forming raw material and kneading the forming raw material to prepare the kneaded forming raw material, an extruding step of extruding the obtained forming raw material to form a honeycomb formed body, and a firing step of firing the extruded honeycomb formed body to form a honeycomb structure containing a cordierite component, and an amount of oil to be absorbed by the porous silica to be added to the forming raw material is in a range of 50 to 190 ml/100 g, and a BET specific surface area of the porous silica is in a range of 340 to 690 m 2 /g.

Structure

A structure includes a base material; a surface layer that contains a binder resin and a titanium compound particle having absorption at 450 nm and 750 nm in a visible absorption spectrum and a BET specific surface area within a range of 100 m 2 /g to 1200 m 2 /g.

Zeolite composite catalysts for conversion of heavy reformate to xylenes

Embodiments of zeolite composite catalysts and methods of producing the zeolite composite catalysts are provided, where the methods comprise dissolving in an alkaline solution a catalyst precursor comprising at least one mesoporous zeolite while heating, stirring, or both to yield a dissolved zeolite solution, where the mesoporous zeolite has a molar ratio of SiO 2 /Al 2 O 3 of at least 30, where the mesoporous zeolite comprises zeolite beta, adjusting the pH of the dissolved zeolite solution, aging the pH adjusted dissolved zeolite solution to yield solid zeolite composite from the dissolved zeolite solution, and calcining the solid zeolite composite to produce the zeolite composite catalyst, where the zeolite composite catalyst has a mesostructure comprising at least one disordered mesophase and at least one ordered mesophase, and where the zeolite composite catalyst has a surface area defined by the Brunauer-Emmett-Teller (BET) analysis of at least 600 m 2 /g.

Method of chemical looping reforming at low temperatures with hydrogen from water splitting

Chemical looping reform methods comprising heating an oxygen carrier in the presence of a catalyst and plasma radicals to react the oxygen carrier with a fuel to provide a reduced oxygen carrier; and contacting the reduced oxygen carrier with water or carbon dioxide to produce hydrogen or carbon monoxide, respectively, and regenerate the oxygen carrier. The chemical looping reform methods are carried out at low temperatures such as from 150° C. to 1000° C., preferably from 150° C. to 500° C. Catalyst used in the chemical looping reform methods include a sintered rare earth metal oxide oxygen carrier and perovskite. Methods of preparing the catalyst are also provided.

Polyolefin production with chromium-based catalysts

A method including contacting a chromium-based catalyst with a reducing agent in a solvent to lower an oxidation state of at least some chromium in the chromium-based catalyst to give a reduced chromium-based catalyst, drying the reduced chromium-based catalyst at a temperature, and adjusting the temperature to affect the flow index response of the reduced chromium-based catalyst.

High surface area pentasil zeolite and process for making same

where M is an alkali, alkaline earth, or rare earth metal such as sodium or strontium, R can be a mixture of organoammonium cations and E is a framework element such as gallium, iron, boron, or indium. These zeolites are characterized by unique x-ray diffraction patterns and compositions and have catalytic properties for carrying out various hydrocarbon conversion processes.

Trans-metallated mof catalyst

A metal organic framework comprising zinc (II) ions and second metal ions, such as iron (II) ions, cobalt (II) ions, and copper (II) ions as nodes or clusters and coordinated 1,3,5-benzenetricarboxylic acid struts or linkers between them forming a porous coordination network in the form of polyhedral crystals that are isostructural to HKUST-1. Transmetallation processes for producing the metal organic frameworks, as well as methods for applications of the metal organic frameworks as catalysts, specifically catalysts for the oxidation of cyclic hydrocarbons, such as toluene, cyclohexane, and methylcyclohexane.

Methods of producing composite zeolite catalysts for heavy reformate conversion into xylenes

A method of forming a composite zeolite catalyst includes combining a silicon source and an aqueous organic structure directing agent having a polyamino cation compound to form a silica intermediary gel, introducing an aluminum precursor to the silica intermediary gel to form a catalyst precursor gel, evaporating water in the catalyst precursor gel to form a catalyst gel, and heating the catalyst gel to form a composite zeolite catalyst particle having an intergrowth region with a mixture of both Beta crystals and ZSM-5 crystals. An associated method of making xylene includes feeding heavy reformate to a reactor, the reactor containing the composite zeolite catalyst, and producing xylene by simultaneously performing dealkylation and transalkylation of the heavy reformate in the reactor, where each composite zeolite catalyst particle is able to catalyze both the dealkylation and transalkylation reactions.

Process of Making Olefins or Alkylate by Reaction of Methanol and/or DME or by Reaction of Methanol and/or DME and Butane

Methods of simultaneously converting butanes and methanol to olefins over Ti-containing zeolite catalysts are described. The exothermicity of the alcohols to olefins reaction is matched by endothermicity of dehydrogenation reaction of butane(s) to light olefins resulting in a thermo-neutral process. The Ti-containing zeolites provide excellent selectivity to light olefins as well as exceptionally high hydrothermal stability. The coupled reaction may advantageously be conducted in a staged reactor with methanol/DME conversion zones alternating with zones for butane(s) dehydrogenation. The resulting light olefins can then be reacted with iso-butane to produce high-octane alkylate. The net result is a highly efficient and low cost method for converting methanol and butanes to alkylate.

Shaped porous carbon products

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.

Process for the production of a zeolitic material via solvent-free interzeolitic conversion

A process for preparing a zeolitic material containing YO2 and X2O3, where Y and X represent a tetravalent element and a trivalent element, respectively, is described. The process includes (1) a step of preparing a mixture containing one or more structure directing agents, seed crystals, and a first zeolitic material containing YO2 and X2O3 and having FAU-, GIS-, MOR-, and/or LTA-type framework structures; and (2) a step of heating the mixture for obtaining a second zeolitic material containing YO2 and X2O3 and having a different framework structure than the first zeolitic material. The mixture prepared in (1) and heated in (2) contains 1000 wt % or less of H2O based on 100 wt % of YO2 in the framework structure of the first zeolitic material. A zeolitic material obtainable and/or obtained by the process and its use are also described.

Catalyst for synthesizing multi-wall carbon nanotubes, method for producing catalyst, and multi-wall carbon nanotubes synthesized by catalyst

The present invention relates to a catalyst for synthesizing multi-wall carbon nanotubes and, more specifically, to a catalyst for synthesizing multi-wall carbon nanotubes, capable of easily disperse the synthesized multi-wall carbon nanotubes and significantly improving conductivity, to a method for producing the catalyst, and to multi-wall carbon nanotubes synthesized by the catalyst.

A chromium catalyst, its preparation and use

Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chromium (III) oxide and chromium (VI) oxide at an amount of about 10,000 ppm or less based on total chromium oxide contents in the chromium oxide catalyst composition.

Catalyst support materials with oxygen storage capacity (osc) and method of making thereof

A wash coat is formed by combining platinum group metals (PGM) and an adhesive with a mixture of catalyst support materials according to the relationship (α)RE-Ce—ZrO 2 +(β)CZMLA+( 1 −α−β)RE-Al 2 O 3 . The RE-Ce—ZrO 2 is a commercial material of rare earth elements stabilized ceria zirconia having a weight ratio (α) ranging from 0 to about 0.7; CZMLA is a catalyst support material comprising a core support powder coated with a solid solution and has a weight ratio (β) ranging from about 0.2 to about 1 such that (α+β)≦1. RE-Al 2 O 3 is rare earth element stabilized alumina having a weight ratio equal to (1−α−β). The wash coat exhibits a lower activation temperature compared with traditional wash coat formulations by at least 50° C. This wash coat also requires less RE-Ce—ZrO 2 oxide and/or less PGM in the formulation for use as an emission control catalyst for gasoline and diesel engines.

Hybrid binary catalysts, methods and uses thereof

The present disclosure describes hybrid binary catalysts (HBCs) that can be used as engine aftertreatment catalyst compositions. The HBCs provide solutions to the challenges facing emissions control. In general, the HBCs include a porous primary catalyst and a secondary catalyst. The secondary catalyst partial coats the surfaces (e.g., the internal porous surface and/or the external surface) of the primary catalyst resulting in a hybridized composition. The synthesis of the HBCs can provide a primary catalyst whose entire surface, or portions thereof, can be coated with the secondary catalyst.

A tin-containing zeolitic material having a bea framework structure

A process for preparing a tin-containing zeolitic material having framework type BEA, comprising providing an aqueous synthesis mixture comprising a boron source, a silicon source, and a BEA structure directing agent; subjecting the synthesis mixture provided in to hydrothermal pre-crystallization conditions; adding the tin source to the obtained mixture; subjecting the obtained aqueous synthesis mixture to hydrothermal crystallization conditions, obtaining a tin-containing zeolitic material having framework type BEA comprised in its mother liquor.

Reactivated Hydroprocessing Catalysts for Use in Sulfur Abatement

Disclosed herein are methods, systems, and compositions for providing catalysts for tail gas clean up in sulfur recovery operations. Aspects of the disclosure involve obtaining catalyst that was used in a first process, which is not a tailgas treating process and then using the so-obtained catalyst in a tailgas treating process. For example, the catalyst may originally be a hydroprocessing catalyst. A beneficial aspect of the disclosed methods and systems is that the re-use of spent hydroprocessing catalyst reduces hazardous waste generation by operators from spent catalyst disposal. Ultimately, this helps reduce the environmental impact of the catalyst life cycle. The disclosed methods and systems also provide an economically attractive source of high-performance catalyst for tailgas treatment, which benefits the spent catalyst generator, the catalyst provider, and the catalyst consumer.

Menetelmä katalyyttikantajan valmistamiseksi, katalyytti olefiinipolymerisointia varten ja menetelmä olefiinien polymerisoimiseksi mainitulla katalyytillä

Chromium-catalyzed production of alcohols from hydrocarbons

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state 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. In addition, these processes can further comprise a step of calcining all or a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.

Chromium-catalyzed production of alcohols from hydrocarbons

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state 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. In addition, these processes can further comprise a step of calcining all or a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.

Support for catalysts, process for the manufacture of a precursor gel of a support for catalysts, catalyst for the polymerization of olefins and process for the polymerization of olefins by means of this catalyst

Support for catalysts, containing at least two constituents chosen from silica, alumina and aluminium phosphate, having a specific surface of 100 to 800 m 2 /g, a crystallization temperature greater than or equal to 700° C. and a pore volume of 1.5 to 4 cm 3 /g, the specific surface (SS) and the pore volume (PV) corresponding to the relationship: SS<(PV×564-358). Process for the manufacture of such a support, according to which an alcohol, water, a silicon alkoxide and an acid are mixed under conditions such that gelling or precipitation of silica is prevented, an acidic solution of an aluminium compound and/or a solution of a source of phosphate ions are added thereto, a gelling agent is added thereto, a gel is recovered which is washed with water and then by means of an organic liquid, the gel is then dried until a powder is obtained, and the powder is calcined. Polymerization of olefins in the presence of a catalyst containing chromium on a support as described above.

Organosilica materials for use as adsorbents for oxygenate removal

This invention relates in certain aspects to a process for removing oxygenates from a stream, preferably a hydrocarbon stream comprising contacting an organosilica material with the hydrocarbon steam, where the organosilica material is a polymer of at least one monomer of Formula [Z1OZ2SiCH2]3, wherein Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C6 alkyl group or an oxygen atom bonded to a silicon atom of another monomer.

Methods of preparing a catalyst utilizing hydrated reagents

A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C. for a time period of from about 30 minutes to about 6 hours to form a pre-catalyst.

Methods of preparing a catalyst utilizing hydrated reagents

A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C. for a time period of from about 30 minutes to about 6 hours to form a pre-catalyst.

催化剂载体的制法、烯烃聚合催化剂和用该催化剂的烯烃聚合方法

制备含有二氧化硅和至少一种选自氧化铝和磷酸铝的组分的催化剂载体的方法，根据这种方法，在避免二氧化硅的胶凝化和沉淀的条件下，混合醇、水、烃氧基硅和酸，向其中加入铝化合物的酸性溶液和/或磷酸根离子源的溶液，加入胶凝剂，收集凝胶，用水洗涤，再用有机液体洗涤，然后用雾化法干燥凝胶，直至得到粉末并焙烧粉末。 在含有载于上述载体的铬的催化剂存在下聚合烯烃。

Modified particles, catalyst for olefin polymerization containing the same, and method for producing olefin polymer

Modified particles obtained by a process comprising contacting water-containing particles(a), an organometallic compound(b) and a compound(c) having a functional group containing active hydrogen or a non-proton donative Lewis basic functional group, and having an electron attractive group; a carrier of said particles; a catalyst component for olefin polymerization of said particles; a catalyst for olefin polymerization comprising said particles(A) and a transition metal compound(B), and optionally, an organometallic compound (C); and a method for producing an olefin polymer with said catalyst for olefin polymerization.

Olefin polymerization catalyst system comprising mesoporous organosilica support

A catalyst system comprising a combination of: 1) an activator; 2) one or more metallocene catalyst compounds; 3) a support comprising an organosilica material, which may be a mesoporous organosilica material. The organosilica material may be a polymer of at least one monomer of Formula [Z 1 OZ 2 SiCH 2 ] 3 (I), where Z 1 represents a hydrogen atom, a C 1 -C 4 alkyl group, or a bond to a silicon atom of another monomer and Z 2 represents a hydroxyl group, a C 1 -C 4 alkoxy group, a Ci-C 6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

Olefin polymerization catalyst system comprising mesoporous organosilica support

A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising a phenoxide transition metal compound; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include biphenyl phenol catalysts (BPP). The organosilica material is a polymer of at least one monomer of Formula [Z 1 OZ 2 SiCH 2 ] 3 (I), where Z 1 represents a hydrogen atom, a C 1 -C 4 alkyl group, or a bond to a silicon atom of another monomer and Z 2 represents a hydroxyl group, a C 1 -C 4 alkoxy group, a C 1 -C 6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

乙烯气相聚合方法

本发明涉及一种用于在基于铬化合物、钛化合物和二氧化硅载体材料的催化剂组合物的存在下生产乙烯聚合物的气相聚合方法。所述二氧化硅载体材料具有在685m 2 /g与800m 2 /g之间的表面积(SA)、在1.65cm 3 /g与1.85cm 3 /g之间的孔体积(PV)和在25微米与35微米之间范围内的平均粒度。所述催化剂组合物通过干燥催化剂进料器注入聚合反应器中。

乙烯气相聚合方法

本发明涉及一种用于在基于铬化合物、钛化合物和二氧化硅载体材料的催化剂组合物的存在下生产乙烯聚合物的气相聚合方法。所述二氧化硅载体材料具有在685m 2 /g与800m 2 /g之间的表面积(SA)、在1.65cm 3 /g与1.85cm 3 /g之间的孔体积(PV)和在25微米与35微米之间范围内的平均粒度。所述催化剂组合物通过干燥催化剂进料器注入聚合反应器中。

Verfahren zur Herstellung von Siliciumoxyd-Aluminiumoxyd-Katalysatoren fuer Kohlenwasserstoffumwandlungen, insbesondere zum Spalten

Catalyst systems and methods of synthesizing catalyst systems

Embodiments of catalyst systems and methods of synthesizing catalyst systems are provided. The catalyst system may include a core comprising a zeolite; and a shell comprising a microporous fibrous silica. The shell may be in direct contact with at least a majority of an outer surface of the core. The catalyst system may have a Si/Al molar ratio greater than 5. At least a portion of the shell may have a thickness of from 50 nanometers (nm) to 360 nm.

Processo para a fabricação de um suporte para catalisadores e catalisador e processo para a polimerizacão de olefinas

幅広い分子量を有するポリエチレンの製造

宽分子量聚乙烯的生产方法

本发明涉及烷基铝活化剂和助催化剂用于改进铬型催化剂体系的用途。烷基铝使得可以可变控制聚合物分子量、控制侧分支、同时具有理想的生产率，并且可以直接施加于催化剂或单独施加于反应器中。将烷基铝化合物直接加入到反应器中(就地)消除了诱导时间。

Production of broad molecular weight polyethylene

THE PRESENT INVENTION IS DIRECTED TO THE USE OF ALUMINUM ALKYL ACTIVATORS AND CO-CATALYSTS TO IMPROVE THE PREFORMACE OF CHROMIUM-BASED CATALYSTS. THE ALUMINUM ALKYLS ALLOW FOR THE VARIABLE CONTROL OF POLYMER MOLECULAR WEIGHT, CONTROL OF SIDE BRANCHING WHILE POSSESSING DESIRABLE PRODUCTIVITIES, AND MAY BE APPLIED TO THE CATALYST DIRECTLY TO THE REACTOR (IN-SITU) ELIMINATES INDUCTION TIMES.

宽分子量聚乙烯的生产方法

本发明涉及烷基铝活化剂和助催化剂用于改进铬型催化剂体系的用途。烷基铝使得可以可变控制聚合物分子量、控制侧分支、同时具有理想的生产率，并且可以直接施加于催化剂或单独施加于反应器中。将烷基铝化合物直接加入到反应器中(就地)消除了诱导时间。

宽分子量聚乙烯的生产方法

本发明宽分子量聚乙烯的生产方法涉及烷基铝活化剂和助催化剂用于改进铬型催化剂体系的用途。烷基铝使得可以可变控制聚合物分子量、控制侧分支、同时具有理想的生产率，并且可以直接施加于催化剂或单独施加于反应器中。将烷基铝化合物直接加入到反应器中(就地)消除了诱导时间。

Production of broad molecular weight polyethylene

THE PRESENT INVENTION IS DIRECTED TO THE USE OF ALUMINUM ALKYL ACTIVATORS AND CO-CATALYSTS TO IMPROVE THE PREFORMACE OF CHROMIUM-BASED CATALYSTS. THE ALUMINUM ALKYLS ALLOW FOR THE VARIABLE CONTROL OF POLYMER MOLECULAR WEIGHT, CONTROL OF SIDE BRANCHING WHILE POSSESSING DESIRABLE PRODUCTIVITIES, AND MAY BE APPLIED TO THE CATALYST DIRECTLY OR SEPARATELY TO THE REACTOR. ADDING THE ALKYL ALUMINUM COMPOUND DIRECTLY TO THE REACTOR (IN-SITU) ELIMINATES INDUCTION TIMES.

宽分子量聚乙烯的生产方法

本发明宽分子量聚乙烯的生产方法涉及烷基铝活化剂和助催化剂用于改进铬型催化剂体系的用途。烷基铝使得可以可变控制聚合物分子量、控制侧分支、同时具有理想的生产率，并且可以直接施加于催化剂或单独施加于反应器中。将烷基铝化合物直接加入到反应器中(就地)消除了诱导时间。

宽分子量聚乙烯的生产方法

本发明涉及烷基铝活化剂和助催化剂用于改进铬型催化剂体系的用途。烷基铝使得可以可变控制聚合物分子量、控制侧分支、同时具有理想的生产率，并且可以直接施加于催化剂或单独施加于反应器中。将烷基铝化合物直接加入到反应器中(就地)消除了诱导时间。

宽分子量聚乙烯的生产方法

本发明涉及烷基铝活化剂和助催化剂用于改进铬型催化剂体系的用途。烷基铝使得可以可变控制聚合物分子量、控制侧分支、同时具有理想的生产率，并且可以直接施加于催化剂或单独施加于反应器中。将烷基铝化合物直接加入到反应器中(就地)消除了诱导时间。

Organosilica materials and uses thereof

Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula (I) wherein each R1 is a Z1OZ2SiZ4 group, wherein each Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer unit; Z2 and Z3 each independently represent a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z4 represents a C1-C8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.

Proceso para producir alquenos de oxigenados utilizando catalizadores de heteropoliacidos soportados.

La presente invención se relaciona a un catalizador de heteropoliácido soportado, a un proceso para producir alquenos de oxigenados en la presencia de dicho catalizador y al uso de dicho catalizador en un proceso para producir alquenos de oxigenados a una alta productividad aunque evitando la formación de alcanos.

Soportes de catalizador, catalizadores y su manufactura y uso.

Un proceso para la preparación de partículas de soporte catalizador de xerogel de sílice que tienen áreas de superficie elevada que involucran el endurecimiento de un hidrogel de sílice a un pH desde 3 hasta 5 y a una temperatura de 45°C o más. El endurecimiento a pH bajo conduce a un gel de sílice que puede convertirse en un xerogel que tiene un volumen de poro de 1.5 cm3/g o más y un área superficial de 600 m2/g o más mediante retiro de líquido de la estructura de poro mediante intercambio por solvente con un solvente líquido que tiene una tensión superficial de 35 mN/m o menos. Las partículas resultantes son útiles para transportar compuestos de metal catalizador, tales como compuestos de cromo, en la estructura de poro a fin de actuar como precursores de catalizador. Estos precursores de catalizador pueden activarse en partículas de catalizador porosas, adecuadas para uso en la polimerización de olefina a fin de proporcionar elevada actividad y para formar polímeros de alto peso molecular (polímeros de bajo MI) con buena resistencia a la fisura.

一种含膦多孔有机聚合物负载型催化剂及其制备方法和应用

本发明公开了一种多级孔结构含膦多孔有机聚合物负载型催化剂及其在1‑辛烯生产中的应用,所述多相催化剂中以金属Rh、Ru、Ir的一种或多种作为活性组分，以多级孔结构含膦多孔有机聚合物作为载体，含膦有机聚合物由单齿有机磷配体自聚而成。此类配位键型多相催化剂适用于固定床，浆态床，鼓泡床和滴流床等反应器中。本发明提供的多相催化剂在1‑辛烯氢甲酰化制备壬醛生产中具有很好的表现，能够生产高正异比的壬醛，正异比可达10以上，该多相催化剂稳定性好，催化剂与反应物、产品的分离简单而且高效。

Support for catalysts, process for the manufacture of a precursor gel of a support for catalysts, process for the preparation of a support for catalysts, catalyst for the polymerization of olefins andprocess for the polymerization of olefins by means of this catalyst

SUPPORT FOR CATALYSTS,CONTAINING AT LEAST TWO CONSTITUENTS CHOSEN FROM SILICA, ALUMINA AND ALUMINIUM PHOSPHATE, HAVING A SPECIFIC SURFACE OF 100 TO 800 M2/G, A CRYSTALLIZATION TEMPERATURE GREATER THAN OR EQUAL TO 700?C AND A PORE VOLUME OF 1.5 TO 4 CM3/G, THE SPECIFIC SURFACE (SS) AND THE PORE VOLUME (PV) CORRESPONDING TO THE RELATIONSHIP.SS < (PV X 564 - 358).PROCESS FOR THE MANUFACTURE OF SUCH A SUPPORT, ACCORDING TO WHICH AN ALCOHOL,WATER, A SILICON ALKOXIDE AND AN ACID ARE MIXED UNDER CONDITIONS SUCH THAT GELLING OR PRECIPITATION OF SILICA IS PREVENTED, AN ACIDIC SOLUTION OF AN ALUMINIUM COMPOUND AND/OR A SOLUTION OF A SOURCE OF PHOSPHATE IONS ARE ADDED THERETO, A GELLING AGENT IS ADDED THERETO,A GEL IS RECOVERED WHICH IS WASHED WITH WATER AND THEN BY MEANS OF ORGANIC LIQUID,THE GEL IS THEN DRIED UNTIL A POWDER IS OBTAINED, AND THE POWDER IS CALCINED.POLYMERIZATION OF OLEFINS IN THE PRESENCE OF A CATALYST CONTAINING CHROMIUM ON A SUPPORT AS DESCRIBED ABOVE.

Chromium-catalyzed production of alcohols from hydrocarbons

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state 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. In addition, these processes can further comprise a step of calcining all or a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.

Chromium-catalyzed production of alcohols from hydrocarbons

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.

Catalytic oxidation of primary amines to oximes by elemental oxygen

A process for the production of oximes which comprises contacting, in the vapor phase, a primary saturated aliphatic or alicyclic amine of 2 to 12 carbon atoms with an elemental oxygen gas in the presence of an effective amount of a catalyst comprising an alumina or oxygen-containing tungsten substance on a metal oxide support using temperatures between about 130° and 230° C. at atmospheric pressure is disclosed. Preferred alumina catalysts are alumina xerogels, γ-alumina and acidic, fluorinated alumina. Preferred oxygen-containing tungsten catalysts are WO 3 on γ-alumina or WO 3 on alumina xerogels.

Methods for producing fluorided-chlorided silica-coated alumina activator-supports and catalyst systems containing the same

Methods for the preparation of fluorided-chlorided silica-coated alumina activator-supports are disclosed. These comprise (a) calcining a silica-coated alumina at a peak calcining temperature to produce a calcined silica-coated alumina; (b) contacting the calcined silica- coated alumina with a chlorine-containing compound and calcining at a peak chloriding temperature to produce a chlorided silica-coated alumina; and (c) contacting the chlorided silica-coated alumina with a fluorine-containing compound and calcining at a peak fluoriding temperature to produce the fluorided-chlorided silica-coated alumina. These activator-supports can be used in catalyst systems further comprising a metallocene compound and optionally a co-catalyst, for the production of olefin-based polymers, such as polyethylene and polypropylene.

铬催化从烃生产醇

公开了将烃反应物转化为醇化合物和/或羰基化合物的工艺，这些工艺包括以下步骤：用UV‑可见光谱中的波长的光束照射所述烃反应物和包含六价氧化态的铬的负载型铬催化剂以还原所述负载型铬催化剂的至少一部分，以形成还原的铬催化剂，以及水解所述还原的铬催化剂以形成包含所述醇化合物和/或所述羰基化合物的反应产物。此外，这些工艺可进一步包括煅烧所述还原的铬催化剂的全部或部分以再生所述负载型铬催化剂的步骤。

Adsorbent for heteroatom species removal and uses thereof

Adsorbent materials including a porous material support and about 0.5 wt. % to about 30 wt. % of a Group 8 metal ion are provide herein. Methods of making the adsorbent material and processes of using the adsorbent material, e.g., for heteroatom species separation, are also provided herein.

Method of preparing a catalyst

Procede de preparation d'un support pour catalyseurs, catalyseur pour la polymerisation d'olefines et procede pour la polymerisation d'olefines au moyen de ce catalyseur

Procédé pour la fabrication d'un support contenant de la silice et au moins un constituant choisi parmi l'alumine et le phosphate d'aluminium, selon lequel on mélange un alcool, de l'eau, un alcoolate de silicium et un acide dans des conditions telles qu'on évite une gélification ou précipitation de silice, on y ajoute une solution acide d'un composé d'aluminium et/ou une solution d'une source d'ions phosphates, on y ajoute un agent gélifiant, on recueille un gel que l'on soumet à un lavage à l'eau et ensuite au moyen d'un liquide organique, puis on sèche le gel par atomisation jusqu'à l'obtention d'une poudre, et on calcine la poudre. Polymérisation d'oléfines en présence d'un catalyseur contenant du chrome sur un support tel que décrit ci-dessus.

Katalyyttikantaja, menetelmä katalyyttikantajan prekursorigeelin valmistamiseksi

Process for the preparation of a support for catalysts, catalyst for the polymerization of olefins and process for the polymerization of olefins by means of this catalyst

Process for the manufacture of a support containing silica and at least one constituent chosen from alumina and aluminium phosphate, according to which an alcohol, water, a silicon alkoxide and an acid are mixed under conditions such that gelling or precipitation of silica is prevented, an acidic solution of an aluminium compound and/or a solution of a source of phosphate ions are added thereto, a gelling agent is added thereto, a gel is recovered which is washed with water and then by means of an organic liquid, the gel is then dried by atomization until a powder is obtained, and the powder is calcined. Polymerization of olefins in the presence of a catalyst containing chromium on a support as described above.

催化剂载体、其制备方法、烯烃聚合催化剂和用这些催化剂的烯烃聚合方法

包括选自氧化硅、氧化铝和磷酸铝中至少两种组分的催化剂载体，其比表面积为100-800m 2 /g，结晶温度大于或等于700℃，孔体积为1.5-4cm 3 /g，其比表面积(SS)和孔体积(PV)对应于如下关系式： SS＜(PV×564-358) 该载体的制备方法，根据该方法，醇、水、烃氧基硅和酸在不导致二氧化硅凝胶化和沉淀的条件下进行混合，将铝化合物的酸性溶液和/或磷酸根离子源的溶液加入其中，将胶凝剂加入其中，得到凝胶，用水洗涤，然后用有机液体洗涤，再干燥直到得到粉末，并对得到的粉末进行焙烧。在含有在上面描述载体上铬的催化剂的存在下进行烯烃聚合。

Procedimiento de preparacion de un soporte para catalizadores, catalizadorpara la polimerizacion de olefinas y procedimiento para lapolimerizacionde olefinas por medio de este catalizador.

Un procedimiento para la fabricación de un soporte que contiene sílice yal menos un constituyente seleccionado entre la alúmina y el fosfato dealuminio, según el cual se mezcla un alcohol, agua, un alcoholato desilicio y un ácido en condiciones tales que se evitan una gelificación oprecipitación de sílice, se añade a lo anterior una solución ácida de uncompuesto de aluminio y/o una solución de una fuente de iones fosfato, seañade al todo un agente gelificante, se recoge un gel que se somete a unlavado con agua y a continuación por medio de un líquido orgánico, se secaluego el gel por atomización hasta la obtención de un polvo, y se calcinael polvo. Polimerización de olefinas en presencia de un catalizador quecontiene cromo sobre un soporte tal como se describe anteriormente.

Process for the preparation of a support for catalysts, catalyst for the polymerization of olefins by means of this cata

PROCESS FOR THE MANUFACTURE OF A SUPPORT CONTAINING SILICA AND AT LEAST ONE CONSTITUENT CHOSEN FROM ALUMINA AND ALUMINIUM PHOSPHATE, ACCORDING TO WHICH AN ALCOHOL,WATER, A SILICON ALKOXIDE AND AN ACID ARE MIXED UNDER CONDITIONS SUCH THAT GELLING OR PRECIPITATION OF SILICA IS PREVENTED, AN ACIDIC SOLUTION OF AN ALUMIUM COMPOUND AND/OR A SOLUTION OF A SOURCE OF PHOSPHATE IONS ARE ADDED THERETO, A GELLING AGENT IS ADDED THERETO, A GEL IS RECOVERED WHICH IS WASHED WITH WATER AND THEN BY MEANS OF AN ORGANIC LIQUID, THE GEL IS THEN DRIED ATOMIZATION UNTIL A POWDER IS OBTAINED, AND THE POWER CALCINED. POLYMERIZATION OF OLEFINS IN THE PRESENCEOF A CATALYST CONTAINING CHROMIUM ON A SUPPORT AS DESCRIBED ABOVE. (FIG. 1)