Method manufacturing for membrane Supporter coating on TiO₂

Method manufacturing for membrane Supporter coating on TiO₂

A CATALYST FOR PRODUCING OLEFINS FROM DEHYDROGENATION OF ALKANE AND A METHOD FOR PRODUCING OLEFINS USING SAID CATALYST

HOLLOW FIBER TYPE PHOTOCATALYST AND MANUFACTURING METHOD THEREOF

process for the production of an olefin oxide

The invention provides a process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a catalyst comprising a carrier and silver deposited on the carrier, which carrier comprises at least 85 weight percent α-alumina and has a surface area of at least 1.3 m 2 /g, a median pore diameter of more than 0.8 μm, and a pore size distribution wherein at least 80% of the total pore volume is contained in pores with diameters in the range of from 0.1 to 10 μm and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 μm is contained in pores with diameters in the range of from 0.3 to 10 μm.

Complex oxide, method for producing same, and exhaust gas purifying catalyst

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 3 /g, preferably not less than 0.40 cm 3 /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.

Catalyst for the epoxidation of alkenes

The present invention relates to a catalyst for preparing alkylene oxides, which is a supported silver catalyst having a novel promoter combination. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene in the presence of the stated catalyst.

Catalytically Active Material for the Hydrogenation Treatment of Hydrocarbons

A catalytically active material having adsorption properties is used for the hydrogenation treatment of hydrocarbons severely contaminated with inorganic constituents.

Capture mass composed of elemental sulphur deposited on a porous support for capturing heavy metals

The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a dry or moist gaseous effluent ( 1 ) by means of a capture mass ( 2 ) comprising a porous support at least part of which is of low mesoporosity and an active phase based on sulphur. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas or natural gas.

Photocatalytic element for purification and disinfection of air and water and method for the production thereof

The invention relates to the purification and disinfection of air and water. A photocatalytic element consists of sintered glass beads with a pore volume fraction from 20% to 40% and a pore size from 0.1 to 0.5 mm, the surface of which is coated with a titanium dioxide powder, having a specific surface area of 150-400 m 2 /g, at the rate of 0.5-2% relative to the total mass of the photocatalytic element. The surface of the glass beads has a relief shape with a relief depression of 0.5-10 pm. The method for producing the photocatalytic element comprises sintering the glass beads at a temperature that is 5-20° C. higher than the glass softening temperature, modifying the bead surface with chemical etching agents, and coating the bead surface with the titanium dioxide powder from a water suspension at a pH of 2.9±0.1.

Extruded resid demetallation catalyst

Catalyst supports, supported catalysts, and a method of preparing and using the catalysts for the demetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise alumina and 5 wt % or less titania. Catalyst prepared from the supports have at least 30 to 80 volume percent of its pore volume in pores having a diameter of between 200 and 500 angstroms. Catalysts in accordance with the invention exhibit improved catalytic activity and stability to remove metals from heavy feedstocks during a hydroconversion process. The catalysts also exhibit increased sulfur and MCR conversion.

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.

Exhaust gas purifying filter

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.

Exhaust gas purification filter

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.

Catalyst and method for synthesis of aromatic hydrocarbons through direct conversion of synthesis gas

Synthesis of aromatic hydrocarbons from synthesis gas in a fixed bed or a moving bed reactor loaded with a composite catalyst comprising Catalyst Component A and Catalyst Component B mixed via a mechanical mixing mode, wherein the active ingredient of the Catalyst Component A is active metal oxides; and the Catalyst Component B is one or both of ZSM-5 zeolite and metal modified ZSM-5; the pressure of the synthesis gas is 0.1-6 MPa; the reaction temperature is 300-600° C.; and the space velocity is 500-8000 h−1. The reaction process has a high product yield and selectivity, with the selectivity of aromatics reaching 50-85%, while the selectivity of the methane byproduct is less than 15%.

Porous one-dimensional polymeric graphitic carbon nitride-based nanosystems for catalytic conversion of carbon monoxide and carbon dioxide under ambient conditions

In some aspects and embodiments, the present application provides a wide range of porous 1-D polymeric graphitic carbon-nitride materials that are atomically doped with binary metals in different morphologies. In some embodiments, the graphitic carbon-nitride materials can be prepared with high mass production from inexpensive and natural abundant precursors. In some embodiments, the materials were used successfully for the oxidation of CO to CO2 under ambient reaction temperature in addition to the reduction of CO2 into hydrocarbons. In some embodiments, the materials can be used for practical and large-scale gas conversion for household or industrial applications.

Enzyme forming mesoporous assemblies embedded in macroporous scaffolds

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin, remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion.

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.

Benzene production from ethanol over gold/titanium dioxide catalysts

Disclosed is a catalyst capable of producing benzene from ethanol comprising a titanium dioxide support, gold nanostructures dispersed on the surface of the titanium dioxide support, and ethanol adsorbed onto the surface of the titanium dioxide support, wherein the catalyst is capable of producing benzene from the adsorbed ethanol such that the benzene carbon yield from the adsorbed ethanol is at least 10% when the catalyst is heated to a temperature of 350 to 700 K.

Porous shaped metal-carbon products

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.

Honeycomb catalyst and exhaust gas purifying apparatus

A honeycomb catalyst includes a honeycomb unit. The honeycomb unit has a plurality of through holes that are arranged in parallel in a longitudinal direction and partitions that are provided between the plurality of through holes. The honeycomb unit includes a zeolite, inorganic particles, and an inorganic binder. The zeolite includes a CHA-structured aluminosilicate having a Si/Al ratio of about 15 to about 50. The inorganic particles includes an oxide that has a positive coefficient of thermal expansion. A volume ratio of the zeolite to the inorganic particles is about 50:about 50 to about 90:about 10.

Organic matter decomposition catalyst, organic matter decomposition aggregate, and organic matter decomposition apparatus

An organic matter decomposition catalyst that contains a perovskite type complex oxide represented by A x B y M z O w , wherein A contains 90 at % or more of at least one element selected from the group consisting of Ba and Sr, B contains 80 at % or more of Zr, M is at least one element selected from the group consisting of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality.

Aluminum composite material

An object of the present invention is to provide an aluminum composite material having excellent adhesiveness between a support and a supported substance. The aluminum composite material of an embodiment of the present invention is an aluminum composite material having an oxide film-including aluminum base material having an oxide film on at least a part of a surface of an aluminum base material and a supported substance supported on the surface of the oxide film-including aluminum base material, in which an average film thickness of the oxide film is 1 nm or more and less than 100 nm, and the oxide film-side surface of the aluminum base material has at least one roughened structure selected from the group consisting of a roughened structure including concave portions having an average opening diameter of more than 5 μm and 100 μm or less, a roughened structure including concave portions having an average opening diameter of more than 0.5 μm and 5 μm or less, and an uneven structure including concave portions having an average opening diameter of more than 0.01 μm and 0.5 μm or less.

Hierarchical magnetic nanoparticle-enzyme mesoporous assemblies embedded in macroporous scaffolds

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin, remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion.

Catalyst

A catalyst for producing unsaturated aldehyde and unsaturated carboxylic acid, wherein the cumulative pore volume (A) of pores having a pore diameter of 1 μm or more and 100 μm or less, in the catalyst, is 0.12 ml/g or more and 0.19 ml/g or less, and the ratio (A/B) of the cumulative pore volume (A) to the cumulative pore volume (B) of pores having a pore diameter of 1 μm or more and 100 μm or less, in a pulverized product not passing through a Tyler 6 mesh, in a pulverized product obtained by pulverization of the catalyst under a particular condition is 0.30 or more and 0.87 or less.

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.

Molded sintered body, and method for producing molded sintered body

A molded sintered body containing a mayenite type compound, an inorganic binder sintered material, and a transition metal, wherein a content of the inorganic binder sintered material is 3 to 30 parts by mass with respect to 100 parts by mass of the molded sintered body, and the molded sintered body has at least one pore peak in each of a pore diameter range of 2.5 to 20 nm and a pore diameter range of 20 to 350 nm. A method for producing the molded sintered body, including mixing a precursor of a mayenite type compound and a raw material of an inorganic binder sintered material to prepare a mixture; molding the mixture to prepare a molded body of the mixture; firing the molded body to prepare a fired product; and supporting a transition metal on the fired product to produce a molded sintered body.

Exhaust gas purification catalyst

When the amount of coating is increased in a two-layer catalyst or the like containing two noble metals in respective different layers, gas diffusivity in the catalyst and use efficiency of a catalytic active site are reduced to thereby reduce purification performance. In view of this, an organic fiber having a predetermined shape is used as a pore-forming material in formation of an uppermost catalyst coating layer of a multi-layer catalyst, to thereby form an uppermost catalyst coating layer having a high-aspect-ratio pore excellent in connectivity and therefore excellent gas diffusivity.

Catalyst for hydrogen combustion, process for producing same, and method for hydrogen combustion

The hydrogen combustion catalyst includes a catalyst metal supported on a carrier made of an inorganic oxide, wherein: a functional group having at least one alkyl group with three or less carbon atoms is bonded to a terminal of a hydroxyl group on the carrier surface by substitution; platinum and palladium are supported as the catalyst metal; and a chlorine content is 300 ppm to 2,000 ppm per 1 mass % of the total supported amount of a supported amount of platinum and a supported amount of palladium. The total supported amount of platinum and palladium is preferably 0.1 to 5.0 mass % based on mass of a whole catalyst. In the hydrogen combustion catalyst according to the present invention, when treating a gas that contains iodine and hydrogen, catalyst poisoning by iodine is suppressed.

Platinum group metal catalysts supported on large pore alumina support

The present disclosure provides a three-way conversion (TWC) catalyst composition suitable for at least partial conversion of gaseous hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx). Generally, the catalyst composition comprises a platinum group metal component impregnated into a porous refractory oxide support, wherein the porous refractory oxide support has an average pore radius ranging from about 250 Å to about 5,000 Å, a total intrusion volume of at least about 1.8 ml/g, and a porosity of at least about 80%.

Hydrotreating catalyst, process for preparing the same and use thereof

The present invention relates to a hydrotreating catalyst and more particularly to a catalyst comprising of Group VIB and Group VIII metals impregnated on non-refractory oxide as a catalyst support and process for preparing and its use thereof.

Heterogeneous catalyst and method for selectively hydrogenating copolymer

A heterogeneous catalyst for selectively hydrogenating a copolymer is provided, which includes a porous support, a metal oxide wrapping a part of the surface of the porous support, and a plurality of palladium particles on the porous support and the metal oxide. A method for selectively hydrogenating a copolymer is also provided, which includes contacting a heterogeneous catalyst to a copolymer to process hydrogenation. The copolymer includes aromatic rings and nonaromatic double bonds, and the nonaromatic double bonds are hydrogenated, and the aromatic rings are substantially not hydrogenated. The heterogeneous catalyst includes a porous support, a metal oxide wrapping a part of the surface of the porous support, and a plurality of palladium particles formed on the porous support and the metal oxide.

Amorphous mesoporous and macroporous alumina with an optimized pore distribution, and process for its preparation

The invention concerns a process for the preparation of an amorphous mesoporous and macroporous alumina, comprising at least one step for dissolving an acidic precursor of aluminium, a step for adjusting the pH by adding at least one basic precursor to the suspension obtained in step a), a step for co-precipitation of the suspension obtained at the end of step b) by adding at least one basic precursor and at least one acidic precursor to the suspension, a filtration step, a drying step, a shaping step and a heat treatment step. The invention also concerns an amorphous mesoporous and macroporous alumina with a bimodal pore structure having: a specific surface area S BET of more than 100 m 2 /g; a median mesopore diameter, by volume determined by mercury intrusion porosimetry, of 18 nm or more; a median macropore diameter, by volume determined by mercury intrusion porosimetry, in the range 100 to 1200 nm, limits included; a mesopore volume, as measured by mercury intrusion porosimetry, of 0.7 mL/g or more; and a total pore volume, as measured by mercury porosimetry, of 0.8 mL/g or more.

Supported nickel catalysts used as direct internal reforming catalyst in molten carbonate fuel cells

Disclosed here is a supported catalyst comprising a thermally stable core, wherein the thermally stable core comprises a metal oxide support and nickel disposed in the metal oxide support, wherein the metal oxide support comprises at least one base metal oxide and at least one transition metal oxide or rare earth metal oxide mixed with or dispersed in the base metal oxide. Optionally the supported catalyst can further comprise an electrolyte removing layer coating the thermally stable core and/or an electrolyte repelling layer coating the electrolyte removing layer, wherein the electrolyte removing layer comprises at least one metal oxide, and wherein the electrolyte repelling layer comprises at least one of graphite, metal carbide and metal nitride. Also disclosed is a molten carbonate fuel cell comprising the supported catalyst as a direct internal reforming catalyst.

Titanium oxide fine particles and method for producing same

Provided are: titanium oxide fine particles having small primary particle diameters and small agglomerated particle diameters; and a method for producing titanium oxide fine particles. The BET diameters of the titanium oxide fine particles are 1-50 nm; the agglomerated particle diameters thereof are 1-200 nm; and the (agglomerated particle diameter)/(BET diameter) ratio is 1-40. Titanium (oxy)chloride is hydrolyzed in an aqueous solvent, while controlling the pH range and the temperature range. Preferably, titanium (oxy)chloride is subjected to a primary hydrolysis in an aqueous solvent, and a secondary hydrolysis is subsequently carried out, while adding titanium (oxy)chloride thereto.

Modified Y-type molecular sieve, catalytic cracking catalyst comprising the same, their preparation and application thereof

A modified Y-type molecular sieve has a rare earth content of about 4% to about 11% by weight on the basis of the oxide, a phosphorus content of about 0.05% to about 10% by weight on the basis of P2O5, a sodium content of no more than about 0.5% by weight on the basis of sodium oxide, a gallium content of about 0.1% to about 2.5% by weight on the basis of gallium oxide, and a zirconium content of about 0.1% to about 2.5% by weight on the basis of zirconia; and the modified Y-type molecular sieve has 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 about 20% to about 40%.

Catalyzed SCR Filter and Emission Treatment System

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia.

A process for preparation of a catalyst with a polyolefin coat

The present disclosure relates to a process for preparation of a catalyst with a polyolefin coat. The process of the present disclosure is simple, economical and requires 50% less reaction time to obtain a desired catalyst with polyolefin coat. The catalyst obtained by the process of the present disclosure is capable of reducing generation of polymer fines by at least 50%, which leads to improved plant operability and throughput.

Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst

Provided is a catalyst for oxidative dehydrogenation, a method of preparing the catalyst, and a method of performing oxidative dehydrogenation using the catalyst. The catalyst for oxidative dehydrogenation has improved durability and fillability by including a porous support coated with a metal oxide (AB 2 O 4 ) according to Equation 1: X wt %+ Y wt %=100 wt %,  <Equation 1> wherein X is a content of AB 2 O 4 and is 5 or more and less than 30, and Y is a content of the porous support and is more than 70 and 95 or less, wherein the metal oxide exhibits activity during oxidative dehydrogenation. Therefore, when the catalyst is used in oxidative dehydrogenation of butene, the conversion rate of butene and the selectivity and yield of butadiene may be greatly improved.

Honeycomb filter

A honeycomb filter includes a honeycomb structure having a porous partition wall disposed to surround a plurality of cells; and a plugging portion provided at one end of the cell, wherein the honeycomb structure has an inflow side region including a range of up to at least 30% with respect to the total length of the honeycomb structure with the inflow end face as the starting point and an outflow side region including a range of up to at least 20% with respect to the total length of the honeycomb structure with the outflow end face as the starting point, in the extending direction of the cell of the honeycomb structure, an average pore diameter of the partition wall in the inflow side region is 9 to 14 μm and an average pore diameter of the partition wall in the outflow side region is 15 to 20 μm.

Catalyst for treating exhaust gas

Provided is a catalyst composition having an aluminosilicate molecular sieve having an AEI structure and a mole ratio of silica-to-alumina of about 20 to about 30 loaded with about 1 to about 5 weight percent of a promoter metal, based on the total weight of the molecular sieve material. Also provided are method, articles, and systems utilizing the catalyst composition.

Catalyzed SCR Filter and Emission Treatment System

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia.

Exhaust gas purification catalyst and method for manufacturing same

An exhaust gas purification catalyst is disposed in an exhaust gas channel of an engine and includes a catalytic layer 22 provided on a substrate 21 . The catalytic layer 22 contains multiple types of γ-aluminas 23 and 24 which are different in composition and Pt 25 loaded on the multiple types of γ-aluminas 23 and 24.

Production of zeolite-based composite materials with hierarchichal porosity

A method is provided for generating a composite material with a support structure and a coating on the surface of the support structure, the coating comprising, as active component, crystals of a zeolite material or of a zeolite-like material, with intercrystalline mesopores and/or macropores being formed in the coating, characterized in that the method comprises the following steps: a) providing a suspension which comprises nanoscale starting crystals of a zeolite material or of a zeolite-like material, and also precursor compounds of the zeolite material or zeolite-like material, b) applying the suspension provided in step a) to the surface of the support structure, c) compacting the suspension applied in step b) by at least partially removing the solvent that forms the liquid phase of the suspension, to yield a coating which comprises the starting crystals and the precursor compounds, d) keeping the coating obtained in step c) on the surface of the support structure in a vapor-containing atmosphere at an elevated temperature, so that the precursor compounds present are converted into a zeolite material or a zeolite-like material and, together with the starting crystals, form the coating which comprises crystals of a zeolite material or of a zeolite-like material.

Four way conversion catalysts for gasoline engine emissions treatment systems

Catalyzed particulate filters comprise three-way conversion (TWC) catalytic material that permeates walls of a particulate filter such that the catalyzed particulate filter has a coated porosity that is less than an uncoated porosity of the particulate filter. The coated porosity is linearly proportional to a washcoat loading of the TWC catalytic material. A coated backpressure is non-detrimental to performance of the engine. Such catalyzed particulate filters may be used in an emission treatment system downstream of a gasoline direct injection engine for treatment of an exhaust stream comprising hydrocarbons, carbon monoxide, nitrogen oxides, and particulates.

Selective Hydrogenation Catalyst and Methods of Making and Using Same

A composition comprising an extruded inorganic support comprising an oxide of a metal or metalloid, and at least one catalytically active metal, wherein the extruded inorganic support has pores, a total pore volume, and a pore size distribution, wherein the pore size distribution displays at least two peaks of pore diameters, each peak having a maximum, wherein a first peak has a first maximum of pore diameters of equal to or greater than about 120 nm and a second peak has a second maximum of pore diameters of less than about 120 nm, and wherein greater than or equal to about 5% of a total pore volume of the extruded inorganic support is contained within the first peak of pore diameters.

Zirconia-based porous body and method for producing same

This invention provides a zirconia-based porous body having a pore diameter suitable for supporting catalytic active species, such as precious metals, small variability in pore diameter, and a sufficient specific surface area even after 12-hour heating at 1000° C. Specifically, the invention provides a zirconia-based porous body in particle form having (1) a pore diameter peak at 20 to 100 nm in the pore distribution by BJH method, a P/W ratio of 0.05 or more wherein W represents half width of the peak and P represents height of the peak in the measured pore distribution curve, and a total pore volume of 0.5 cm 3 /g or more; and (2) a pore diameter peak at 20 to 100 nm, the P/W ratio of 0.03 or more, a specific surface area of at least 40 m 2 /g, and a total pore volume of 0.3 cm 3 /g or more, after heat treatment at 1000° C. for 12 hours.

Mixed cerium- and zirconium-based oxide

The present invention relates to a mixed oxide of aluminium, of zirconium, of cerium, of lanthanum and optionally of at least one rare-earth metal other than cerium and lanthanum that makes it possible to prepare a catalyst that retains, after severe ageing, a good thermal stability and a good catalytic activity. The invention also relates to the process for preparing this mixed oxide and also to a process for treating exhaust gases from internal combustion engines using a catalyst prepared from this mixed oxide.

Plugged honeycomb structure

A plugged honeycomb structure including: a pillar-shaped honeycomb structure body having porous partition walls made of a material including silicon carbide, and plugging portions, wherein a porosity of the partition walls is from 42 to 52%, a thickness of the partition walls is from 0.15 to 0.36 mm, a ratio of a volume of pores having pore diameters of 10 μm or less to a total pore volume of the partition walls is 41% or less, a ratio of a volume of pores having pore diameters in a range of 18 to 36 μm to the total pore volume is 10% or less, the pore diameter indicating a maximum value of the log differential pore volume is in a range of 10 to 16 μm, and a half-value width of a peak including the maximum value of the log differential pore volume is 5 μm or less.

Processes and systems for petrochemical production integrating deep hydrogenation of middle distillates

Process scheme configurations are disclosed that enable deep hydrogenation of middle distillates. The hydrogenated middle distillates are processed in a steam cracker for conversion into light olefins. Feeds to the deep hydrogenation zone include diesel range streams from a diesel hydrotreating zone, a gas oil hydroprocessing zone, and/or a vacuum residue hydrocracking zone. The deep hydrogenation zone operates under conditions effective to reduce aromatic content in a diesel range feedstream from a range of about 10-40 wt % or greater, to a hydrogenated distillate range intermediate product having an aromatic content of less than about 5-0.5 wt %.

Processes and systems for petrochemical production integrating deep hydrogenation of middle distillates obtained from gas oil hydroprocessing

Process scheme configurations are disclosed that enable deep hydrogenation of middle distillates. The hydrogenated middle distillates are processed in a steam cracker for conversion into light olefins. Feeds to the deep hydrogenation zone include diesel range streams from a diesel hydrotreating zone, a gas oil hydroprocessing zone, and/or a vacuum residue hydrocracking zone. The deep hydrogenation zone operates under conditions effective to reduce aromatic content in a diesel range feedstream from a range of about 10-40 wt % or greater, to a hydrogenated distillate range intermediate product having an aromatic content of less than about 5-0.5 wt %.

Process and catalyst for preparing 1,4-butanediol

The present invention relates to a process for preparing 1,4-butanediol (BDO) by hydrogenating 2-butyne-1,4-diol (BYD) or 4-hydroxybutanal (4-HBA) in the presence of a catalyst of the Raney type having a porous foam structure, wherein the macroscopic pores have sizes in the range of 100 to 5000 μm, and a bulk density of up to 0.8 kg/L.

Honeycomb catalytic body

A honeycomb catalytic body including: a honeycomb structure having porous partition walls, and a catalyst layer including a vanadium catalyst, wherein a cell density of the honeycomb structure is in a range of 8 cells to 48 cells per square centimeter, an amount of the vanadium catalyst to be loaded is in a range of 150 g/L to 400 g/L, and a catalyst charging ratio represented by Equation (1) mentioned below in a cut face of the honeycomb catalytic body is from 50% to 100%. the catalyst charging ratio (%)=(the sectional area of the catalyst layer loaded onto the partition wall inner portions)/(the sectional area of the pores before the catalyst is loaded)×100.  Equation (1):

Exhaust gas purification catalyst

An exhaust gas purification catalyst includes: a first catalyst unit that consists of a hydrogen generating catalyst including a noble metal and an oxide that contains lanthanum, zirconium and an additional element such as neodymium; a second catalyst unit that consists of an oxygen storage/release material and a perovskite oxide disposed in contact with the oxygen storage/release material and represented by the general formula La x M1 1-x M2O 3-δ , where La is lanthanum, M1 is at least one element selected from the group consisting of barium (Ba), strontium (Sr) and calcium (Ca), M2 is at least one element selected from the group consisting of iron (Fe), cobalt (Co) and manganese (Mn), x satisfies 0<x≦1, and δ satisfies 0≦δ≦1; and a holding material that holds the first catalyst unit and the second catalyst unit in a mutually separated state.

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.

Methods for producing epoxidation catalysts and epoxidation methods utilizing these

Methods are provided for producing epoxidation catalysts. The present methods are able to produce catalysts having the desired loading levels of catalytic species at a lower vacuum level (having a higher minimum residual pressure) than previously appreciated by the art, thereby providing equipment cost and time savings.

Catalytic hollow fibers

A hollow fiber for use in production of hydrogen gas. The hollow fiber contains a porous support layer having an outer surface and an inner surface, a catalyst layer coated on the outer surface, and a selection layer coated on the inner surface. Also disclosed is a method of preparing such a hollow fiber.

Oligomerization catalyst and process for the production thereof

The invention relates to an oligomerization catalyst comprising nickel oxide and silica-alumina support material and to a process for oligomerization of C3- to C6-olefins using the oligomerization catalyst.

Cobalt-based catalyst on metal structure for selective production of synthetic oil via fischer-tropsch reaction, method of preparing the same, and method of selectively producing synthetic oil using the same

This invention relates to a cobalt-based catalyst on a metal structure for selective production of synthetic oil via Fischer-Tropsch reaction, a method of preparing the same and a method of selectively producing synthetic oil using the same, wherein zeolite, cobalt and a support are mixed and ground to give a catalyst sol, which is then uniformly thinly applied on the surface of a metal structure using a spray-coating process, thereby preventing generation of heat during Fischer-Tropsch reaction and selectively producing synthetic oil having a carbon chain shorter than that of wax. This catalyst is prepared by burning a powder mixture obtained by melt infiltration of a cobalt hydrate and a metal oxide support to give a catalyst powder including cobalt oxide/metal oxide support; hybridizing the catalyst powder including cobalt oxide/metal oxide support with a zeolite powder to give a hybrid catalyst powder; mixing the hybrid catalyst powder with an organic binder and an inorganic binder and grinding the mixed hybrid catalyst powder to give a hybrid catalyst sol; spray-coating a metal structure surface-treated with alumina by atomic layer deposition with the hybrid catalyst sol; and thermally treating the metal structure spray-coated with the hybrid catalyst sol.

Diesel particulate filter

A method of making a filter for filtering particulate matter from exhaust gas emitted from a lean-burn internal combustion engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the inlet surfaces comprise a bridge network comprising interconnected particles of refractory material over the pores of the porous structure, which method comprising the step of contacting inlet surfaces of the filter substrate with an aerosol comprising refractory material in dry powder form. The invention also relates to a filter obtainable by such method.

Catalyst and its use for the selective hydrodesulfurization of an olefin containing hydrocarbon feedstock

A catalyst and its use for selectively desulfurizing sulfur compounds present in an olefin-containing hydrocarbon feedstock to very low levels with minimal hydrogenation of olefins. The catalyst comprises an inorganic oxide substrate containing a nickel compound, a molybdenum compound and optionally a phosphorus compound, that is overlaid with a molybdenum compound and a cobalt compound. The catalyst is further characterized as having a bimodal pore size distribution with a large portion of its total pore volume contained in pores having a diameter less than 250 angstroms and in pores having a diameter greater than 1000 angstroms.

Supported Mixed Oxides Catalysts for Oxidative Coupling of Methane

A supported oxidative coupling of methane (OCM) catalyst comprising a support and an OCM catalytic composition characterized by the general formula A a Z b E c D d O x ; wherein A is an alkaline earth metal; wherein Z is a first rare earth element; wherein E is a second rare earth element; wherein D is a redox agent or a third rare earth element; wherein the first rare earth element, the second rare earth element, and the third rare earth element, when present, are not the same; wherein a is 1.0; wherein b is from about 0.1 to about 10.0; wherein c is from about 0.1 to about 10.0; wherein d is from about 0 to about 10.0; and wherein x balances the oxidation states.

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 Composition With Increased Bulk Active Site Accessibility For The Catalytic Thermoconversion Of Biomass To Liquid Fuels And Chemicals And For Upgrading Bio-Oils

Processes for making a catalytic system and catalytic systems for converting solid biomass into fuel or specialty chemical products, or for upgrading bio-oils are described. The catalyst system may comprise a non-zeolitic matrix with a hierarchical pore structure ranging from 300 to about 10 4 Angstrom pore size, a zeolite, such as MFI-type or IM-5 zeolite, and a binder.

Porous shaped 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 for producing olefins from dehydrogenation of alkane and a method for producing olefins using said catalyst

The present invention relates to a catalyst for producing olefins from dehydrogenation of alkane having 2 to 5 carbon atoms and a method for producing olefins using said catalyst, wherein said catalyst comprises a hierarchical zeolite nanosheet having a silica to alumina(SiO2/AI2O3) ratio more than 120 and group X metal(s) in a range of 0.3 to 5% by weight. The catalyst according to the conversion of precursor to yields and high olefins selectivity.

Exhaust gas purifier

An exhaust gas purification catalyst apparatus, which is superior in oxidation performance of, in particular, nitrogen monoxide, among hydrocarbons, carbon monoxide, nitrogen oxides and particulate components such as soot, included in exhaust gas from a lean burn engine, and combustion performance of light oil. The exhaust gas purification apparatus arranged with an oxidation catalyst (DOC) comprising a noble metal component for oxidizing carbon monoxide, hydrocarbons, in particular, nitrogen monoxide among nitrogen oxides, and for combusting light oil, a catalyzed soot filter (CSF) including a noble metal component for collecting a particulate component such as soot and removing by combustion (oxidation). The oxidation catalyst (DOC) has a catalyst layer where platinum (Pt), palladium (Pd) and barium oxide (BaO) are supported on alumina (Al 2 O 3 ) having a pore size of 12 to 120 nm, and ratio of platinum and palladium is 1:1 to 11:2 in weight equivalent.

Nonprecious metal catalyst for hydrogen production from neutral solutions

Catalysts comprising MoP and MoP2 are disclosed, wherein the catalyst is a composite. The catalyst may have a molar ratio of MoP:MoP2 within a range of 5:95 to 95:5. The catalyst may be used as a cathode active material for hydrogen generation from neutral pH solutions, such as wastewater or seawater. Methods of making the catalyst also are disclosed.

Porous shaped metal-carbon products

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.

Honeycomb-structured catalyst for organic substance decomposition and organic substance decomposing apparatus

A honeycomb-structured catalyst for decomposing an organic substance, which includes a catalyst particle. The catalyst particle contains a perovskite-type composite oxide represented by A x B y M z O w , where the A contains at least of Ba and Sr, the B contains Zr, the M is at least one of Mn, Co, Ni, and Fe, y+z=1, 1.001≤x≤1.05, 0.05≤z≤0.2, and w is a positive value that satisfies electrical neutrality. The toluene decomposition rate is greater than 90% when toluene is decomposed using the honeycomb-structured catalyst subjected to a heat treatment at 1200° C. for 48 hours and a gas that contains 50 ppm toluene, 80% nitrogen, and 20% oxygen as a volume concentration as a target at a space velocity of 30,000/h and a catalyst temperature of 400° C.

Soporte de catalizador y catalizadores preparados a partir del mismo.

Un catalizador soportado útil en procesos para refinar químicamente materiales de abastecimiento de hidrocarburo, el catalizador comprendiendo un metal del Grupo 6, un metal del Grupo 8 y opcionalmente fósforo, en donde el portador o soporte comprende alúmina porosa que comprende: (a) igual a o mayor que aproximadamente 78% a aproximadamente 95% de TPV en poros que tienen un diámetro menor que 200 Angstroms (Å); (b) mayor que aproximadamente 2% a menor que aproximadamente 19% de TPV en poros que tienen un diámetro de aproximadamente 200 a menor que aproximadamente 1000 Å; (c) igual a o mayor que 3% a menor que 12% de TPV en poros que tienen un diámetro igual a o mayor que aproximadamente 1000 Å.

Verbeterde werkwijze voor het omzetten van koolwaterstoffen.

Hydrodesulfurization process

A process for fixed bed hydrodesulphurization of residues with a total Ni + V content of at most 120 ppmw and a C5-asphaltene content above 0.5%w, over a catalyst having a pore volume above 0.30 ml/g with less than 10% of the pore volume in pores with a diameter above 100 nm (nanometers) and such a specific average pore diameter, p, and specific average particle diameter, d, that the quotient p/(d)0.9 meets the requirement 3 X 10 4 X (PH )2 < OR = p/(d)0.9 < OR = 17 X 10 4 X (PH )2, in which PH is the hydrogen partial pressure (P in nm, d in mm, PH in bar). Preferably the process is conducted at a pH2 of 80-180 bar, and a temperature of 300*-475*C over an alumina or silica-alumina based catalyst comprising nickel and/or cobalt and molybdenum and/or tungsten and having a pore diameter of 4.6 to 25.6 nm, a particle diameter of 0.5 - 2.5 nm and a sharp pore diameter distribution.

Process for demetallizing hydrocarbon oils

A B S T R A C T A process for the hydrodemetallization of hydrocarbon oils having a total vanadium and nickel content above 250 ppmw, in which process catalysts are applied having a surface area of at most 100 m2/g and such a porosity and particle size that a given relation between these parameters and the applied hydrogen partial pressure is satisfied.

Process for the catalytic conversion of hydrocarbon oils

Hydrocarbon oils of which more than about 70% by volume boils above about 360° C. and which have a C 5 -asphaltenes content of more than about 2.5% by weight are contacted at elevated temperature and pressure in the presence of hydrogen with a supported molybdenum containing catalyst, in which process hydrocarbon oils containing substantial amounts of nickel are converted at a pressure of at least about 80 bar, using a supported molybdenum containing catalyst having an average pore diameter in the range of about 30 to about 80 nm.

炭化水素の接触部分酸化用の触媒及び合成ガスの製造方法

Process for regenerating ruthenium catalysts for the ring hydrogenation of phthalates

THE PRESENT INVENTION RELATES TO A METHOD OF REGENERATING A RUTHENIUM CATALYST FOR THE HYDROGENATION OF PHTHALATES, WHICH COMPRISES FLUSHING THE CATALYST WITH INERT GAS IN A REGENERATION STEP UNTIL THE ORIGINAL ACTIVITY OR PART OF THE ORIGINAL ACTIVITY HAS BEEN ATTAINED.

Katalysator voor de selectieve oxidatie van zwavelverbindingen tot elementaire zwavel, werkwijze voor de bereiding van een dergelijke katalysator en werkwijze voor de selectieve oxidatie van zwavelverbindingen tot elementaire zwavel.

Process for preparing silver catalyst

A catalyst carrier and a process for preparing the catalyst carrier

Catalyst system for oxidative dehydrogenation reaction, reactor for oxidative dehydrogenation comprising same, and oxidative dehydrogenation method

Catalyst support

Preparation of silica gels

Silica xerogels having narrow pore diameter distribution in the range of 300-600 A. and surface areas in the range of from 200500 m.2/g., and process for preparing such silica xerogels comprising critically controlled steps of precipitation of the silica gel, heat aging the precipitated silica hydrogel slurry, washing the aged product with solutions of salts having a displacing effect on sodium, disintegrating the gel, displacing the water, drying the gel and calcining.

Preparation of silica gels

Silica xerogels having a narrow pore diameter distribution in the range of 300-600 A. and surface areas in the range from 200500 m.2/g. and the process of preparing such xerogels comprising critically controlled steps of precipitation of the silica gel, heat aging the precipitated silica hydrogel slurry, washing the aged product with solutions of salts having displacing effect on sodium, disintegrating the gel, drying the gel by azeotropic distillation with a solvent which is nonmiscible with water, and calcining. Also, a process for preparing such xerogels wherein the non-water miscible solvent is continuously recycled so that a minimum amount of solvent need be used.

Preparation of silica gels

Silica gels having narrow pore diameter distribution in the range of 300-600 A and surface areas in the range from 200-500 m.2/g., and the process of preparing such silica gels directly from water, comprising critically controlled steps of precipitation of the silica gel, heat aging the precipitated silica hydrogel slurry, washing the aged product with solutions of salts having a displacing effect on sodium, disintegrating the gel and freeze drying the hydrogel so as to remove substantially all of the water i.e., vacuum subliming the water from the gel after freezing said hydrogel particles at a temperature sufficient to maintain the water in the pores in the frozen state.

Мезопористый катализатор гидроконверсии остатков и способ его получения

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 100 959 A (51) МПК B01J 23/74 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017100959, 09.06.2015 (71) Заявитель(и): ИФП ЭНЕРЖИ НУВЕЛЛЬ (FR) Приоритет(ы): (30) Конвенционный приоритет: 13.06.2014 FR 14-55415 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.01.2017 R U (43) Дата публикации заявки: 13.07.2018 Бюл. № 20 (72) Автор(ы): БУАЛЛЕГ Малика (FR), ГИШАР Бертран (FR) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/189195 (17.12.2015) R U (54) МЕЗОПОРИСТЫЙ КАТАЛИЗАТОР ГИДРОКОНВЕРСИИ ОСТАТКОВ И СПОСОБ ЕГО ПОЛУЧЕНИЯ (57) Формула изобретения 1. Способ получения катализатора гидроконверсии, содержащего: - подложку по существу из обожженного оксида алюминия, - активную гидрирующую-дегидрирующую фазу, содержащую по меньшей мере один металлы группы VIB периодической системы элементов, необязательно по меньшей мере один металл группы VIII периодической системы элементов, необязательно фосфор, причем указанный катализатор имеет: - удельную поверхность SBET более 75 м2/г, - полный объем пор, измеренный ртутной порозиметрией, более или равный 0,55 мл/ г, - среднеобъемный диаметр мезопор более или равный 16 нм, - объем мезопор, измеренный интрузией на ртутном порозиметре, более или равный 0,50 мл/г, - объем макропор менее 15% от полного объема пор, причем указанный способ включает по меньшей мере следующие этапы: a) первый этап осаждения, в водной реакционной среде, по меньшей мере одного щелочного предшественника, выбранного из алюмината натрия, алюмината калия, аммиака, гидроксида натрия и гидроксида калия, и по меньшей мере одного кислотного предшественника, выбранного из сульфата алюминия, хлорида алюминия, нитрата Стр.: 1 A 2 0 1 7 1 0 0 9 5 9 A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" 2 0 1 7 1 0 0 9 5 9 EP 2015/062821 (09.06.2015) A 2 0 1 7 1 0 0 9 5 9 A R U 2 0 1 7 1 0 ...

含有钼和第viii族金属的催化剂及其用于加氢脱硫氢馏分油的用途

描述的是用于使馏分油原料加氢脱硫以生产低硫馏分油产物的催化剂和方法。所述催化剂包含无机氧化物材料、高浓度的钼组分和高浓度的第VIII族金属组分的煅烧混合物。被煅烧以形成所述煅烧混合物的混合物包含三氧化钼、第VIII族金属化合物和无机氧化物材料。通过混合前述起始材料和由这些起始材料形成聚结物、煅烧所述聚结物以获得可以用作催化剂或催化剂前体的煅烧混合物来制备所述催化剂。

催化涂布的载体、其制备方法以及包括它的反应器及其用途

本发明公开了包含至少一层多孔且含空穴的催化剂层的具有催化涂层的载体，其中该空穴是至少两维尺寸大于5微米或者截面积为至少10μm 2 的不规则空腔。该催化涂层的特征在于高的粘合强度且可优选用于微型反应器内。

一种可见光催化复合膜的制备方法

本发明公开一种可见光催化复合膜的制备方法，将二氧化钛和硅藻土分散在无水乙醇中，得悬浊液；硅烷偶联剂溶解于乙醇中，加入到悬浊液中，得经过偶联改性的硅藻土/二氧化钛无机粉体；加入到氯化铁溶液中，得经过Fe 3+ 修饰‑偶联改性的硅藻土/二氧化钛无机粉体；聚氨酯高分子溶液中加入经过Fe 3+ 修饰‑偶联改性的硅藻土/二氧化钛无机粉体搅拌均匀，再加入固含量为10%的碳酸钙粉体，搅拌得涂膜液；成膜，再浸泡于300mg/L的呫吨染料溶液中一定时间，得呫吨染料敏化硅藻土/二氧化钛复合膜，即可见光催化复合膜。本发明的复合膜具有光利用率高、催化效率高、稳定性好的特点。可用于降解水体污染物。

Носитель с каталитическим покрытием, способ его получения и содержащий его реактор, а также его применение

Настоящее изобретение относится к носителю с каталитическим покрытием, способу его получения, его применению в процессах с гетерогенными катализаторами, а также к реактору, который содержит указанный слой катализатора. Описан носитель с каталитическим покрытием, включающий в себя по меньшей мере один пористый и содержащий полости слой катализатора, где полости представляют собой хаотические пустоты с размерами более 5 мкм в по меньшей мере двух измерениях или с площадью поперечного сечения по меньшей мере 10 мкм 2 . Описан способ получения указанного выше носителя, включающий а) получение субстрата носителя, в) в случае необходимости, нанесение слоя, улучшающего сцепление, с) напыление суспензии с по меньшей мере 30%-ным содержанием твердого вещества, содержащей частицы каталитически активно вещества со средним диаметром по меньшей мере 5 мкм и/или его предшественника и, в случае необходимости, дополнительного компонента каталитически активного слоя, и d) в случае необходимости, одно- или многократное повторение стадии с). Описан реактор с поверхностью, предназначенной для покрытия, содержащий по меньшей мере один носитель с каталитическим покрытием, описанный выше. Описано применение носителя в способе каталитического окисления алифатических соединений, в способе окисления ксилола и/или нафталина до фталевой кислоты, в способе окислительного сочетания уксусной кислоты и этена с образованием винилацетата с помощью кислорода, в способе каталитического гидрирования органических соединений и в способе превращения синтез-газа. Технический эффект - каталитические покрытия отличаются высокой прочностью сцепления слоев, обладающих стабильностью, незначительными допуском толщины слоя и сопротивлением массопередаче и могут быть универсально использованы во множестве каталитических систем. 9 н. и 42 з.п. ф-лы, 5 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 424 849 (13) C2 (51) МПК B01J B01J B01J B01J B01J C07C ФЕДЕРАЛЬНАЯ СЛУЖБА C07C ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, C07C ...

액체상 트랜스알킬화 방법

본 발명은 파라-크실렌 및/또는 다른 크실렌을 형성하기 위해 1-고리 (C 9+ ) 방향족 화합물의 트랜스알킬화, 예컨대 트랜스알킬화에 촉매 방법 및 상응 촉매를 제공한다. 적당한 촉매는 3-D 12원 고리 골격 구조를 갖는 분자체, 1-D 12원 고리 골격 구조를 갖는 분자체, 적어도 6.0 옹스트롬의 기공 채널 크기를 갖는 산성 마이크로다공성 물질, 및/또는 MWW 골격 구조를 갖는 분자체를 포함한다. 방법은 트랜스알킬화 공정에 대한 공급물의 적어도 일부가 액체상인 트랜스알킬화를 수행하는 것을 포함한다. 경우에 따라, 트랜스알킬화 조건은 연속 액체상이 반응 환경 내에 존재하는 조건에 상응할 수 있다. 일부 실시양태는 나프탈렌 함유 공급원료 스트림에 대한 액체상 트랜스알킬화 공정을 포함한다.

액체상 트랜스알킬화 방법

본 발명은 파라-크실렌 및/또는 다른 크실렌을 형성하기 위해 1-고리 (C 9+ ) 방향족 화합물의 트랜스알킬화, 예컨대 트랜스알킬화에 촉매 방법 및 상응 촉매를 제공한다. 적당한 촉매는 3-D 12원 고리 골격 구조를 갖는 분자체, 1-D 12원 고리 골격 구조를 갖는 분자체, 적어도 6.0 옹스트롬의 기공 채널 크기를 갖는 산성 마이크로다공성 물질, 및/또는 MWW 골격 구조를 갖는 분자체를 포함한다. 방법은 트랜스알킬화 공정에 대한 공급물의 적어도 일부가 액체상인 트랜스알킬화를 수행하는 것을 포함한다. 경우에 따라, 트랜스알킬화 조건은 연속 액체상이 반응 환경 내에 존재하는 조건에 상응할 수 있다. 일부 실시양태는 나프탈렌 함유 공급원료 스트림에 대한 액체상 트랜스알킬화 공정을 포함한다.

Catalyst for producing ethylene oxide by gas-phase oxidation

A shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising silver deposited on a porous refractory support, the shaped catalyst body having a first face side surface, a second face side surface and a circumferential surface, characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a cylinder structure with a plurality of void spaces running in the cylinder periphery along the cylinder height to form a multilobe structure; a plurality of passageways extending from the first face side surface to the second face side surface, outer passageways being arranged around a central passageway with one outer passageway being assigned to each lobe, wherein neighboring outer passageways are arranged essentially equidistantly to each other and the outer passageways are arranged essentially equidistantly to the central passageway; a shortest distance A between two neighboring passageways in the range of 0.6 to 1.3 mm; a shortest distance B between each outer passageway and the circumferential surface in the range of 1.1 to 1.8 mm; and a BET surface area in the range of 1.6 to 3.0 m 2 /g. The shaped catalyst bodies allow for a favorable balance between mechanical stability, pressure drop and selectivity. The invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of a shaped catalyst body as defined above. The invention further relates to a process for preparing a shaped catalyst body as above, comprising i) impregnating a refractory support having a BET surface area in the range of 1.4 to 2.5 m 2 /g with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated.

催化剂载体和由其制备的催化剂

一种可用于化学精炼烃原料的过程的负载的催化剂，所述催化剂包含第6族的金属、第8族的金属和任选的磷，其中所述载体或担体包含多孔氧化铝，所述多孔氧化铝包含：(a) 在直径小于约200埃(A)的孔中，等于或大于约78%‑约95%的TPV；(b) 在直径为约200‑小于约1000 A的孔中，大于约2%‑小于约19%的TPV；(c) 在直径等于或大于约1000 A的孔中，等于或大于3%‑小于12%的TPV。

烯烃氢甲酰化反应的Co基多相催化剂及制备和应用

本发明涉及一种Co基多相催化剂制备方法及其应用，更具体地，涉及一种应用于高碳烯烃氢甲酰化反应的Co基多相催化剂，其由金属组分和有机膦配体聚合物组成，所述金属组分是金属Co，所述有机膦配体聚合物是含有乙烯基的有机膦配体经溶剂热聚合生成具有大比表面积和多级孔道结构的聚合物。本发明催化剂在高碳烯烃氢甲酰化反应中，反应活性和产物醛选择性优异，反应稳定性良好。采用新型Co基多相催化剂，降低了催化剂同反应物和产物的分离成本，适应于大规模工业化生产；同时选用非贵金属Co作为催化剂金属活性组分，有效提高了氢甲酰化反应过程的经济性。

Novel catalyst and process for hydrogenation of unsaturated hydrocarbons

Dienes and/or acetylene impurities in an olefin feed; in particular a propylene feed, may be selectively hydrogenated in a single stage by use of a catalyst of palladium supported on alumina which is substantially crystalline alpha alumina, wherein the average pore radius is 200-2000 Å, with a least 80% of the pores having a pore radius within the range of 100 to 3000 Å. The surface acidity of the catalyst is generally from 0.002 to 0.05 millimole of pyridine absorbed per gram of catalyst. The active palladium surface area is from 20 to 200 m 2 /g. The palladium is in the form of crystallines having an average size of at least 25 Å.

用于柴油发动机排放控制的多功能过滤器

提供多区域催化剂制品、制造多区域催化剂制品的方法和用多区域催化剂制品控制柴油发动机排气料流中的排放的方法，其中各种实施方案的排放处理系统通过单个多区域催化剂制品有效处理柴油机排气。

Catalysts with support coatings having increased macroporosity and method for producing the catalysts

A catalyst composition comprises a carrier having a refractory metal oxide support coating thereon and a catalytic platinum group metal dispersed on the support coating. A major portion of the support coating is comprised of a conventional, first metal oxide such as stabilized gamma alumina and a minor portion is provided by a macroporous, second metal oxide such as cordierite. The second metal oxide is conveniently provided by comminuting finished catalyst production scrap. In the method of the invention particles of the first metal oxide are combined with particles of the second metal oxide to form the coating.

Porous microcomposite of perfluorinated ion-exchange polymer and metal oxide, a network of silica, or a network of metal oxide and silica derived via a sol-gel process

Porous microcomposites comprising a perfluorinated ion-exchange polymer (PFIEP) containing pendant sulfonic acid and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of metal oxide, a network of silica, or a network of metal oxide and silica are prepared from PFIEP and one or more precursors selected from the group consisting of a metal oxide precursor, a silica precursor, and a metal oxide and silica precursor using an in situ process. Such microcomposites have a first set of pores having a pore size diameter ranging from about 0.5 nm to about 75 nm and may further comprise a second set of pores having a diameter ranging from about 75 nm to about 1000 nm. These microcomposites possess high surface area and exhibit high catalytic activity for a variety of reactions including, but not limited to, nitrations, esterifications, dimerizations, alkylations, polymerizations, acylations, and isomerizations.

Porous microcomposite of metal cation exchanged perfluorinated ion-exchanged polymer and network of metal oxide, silica or metal oxide and silica

Porous microcomposites comprising a perfluorinated ion-exchange polymer (PFIEP) containing pendant metal cation exchanged sulfonate groups, metal cation exchanged carboxylate groups, or metal cation exchanged sulfonate and carboxylate groups, wherein the metal cation may be ligand coordinated, and optionally pendant sulfonic acid groups, carboxylic acid groups, or sulfonic acid and carboxylic acid groups, the PFIEP being entrapped within and highly dispersed throughout a network of metal oxide, a network of silica or a network of metal oxide and silica can be prepared from PFIEP and one or more precursors selected from the group consisting of a metal oxide precursor, a silica precursor, and a metal oxide and silica precursor using an in situ process. Preferred metal cations are Cr, Sn, Al, Fe, Os, Co, Zn, Hg, Li, Na, Cu, Pd or Ru. Such microcomposites have a first set of pores having a pore size diameter ranging from about 0.5 nm to about 75 nm and may further comprise a second set of pores having a diameter ranging from about 75 nm to about 1000 nm. These microcomposites possess high surface area and exhibit high catalytic activity.

一种以离子液体作为粘结剂的涂层催化剂的制备和应用

本发明涉及一种用于制备涂层催化剂的方法及其应用。所述制备涂层催化剂的方法是将含活性组分的催化剂粉体在离子液体的作用下涂覆到惰性载体上，得到的涂层催化剂的外层活性组分含有钼、铋等氧化物，内层是氧化铝、氧化硅等惰性载体。催化剂制备时，可将催化剂粉体、离子液体一同(或分别)分散在乙醇中，并(同时)喷涂到惰性球形载体上，得到涂层催化剂。该催化剂经干燥、焙烧等处理后形成特定分布的孔，具有较高的机械强度，且在丙烯氧化制备丙烯醛、(甲基)丙烯醛氧化制备(甲基)丙烯酸和异丁烯氧化制备甲基丙烯醛时具有优良的反应性能。

用于选择氧化硫化物成为元素硫的催化剂，其制法及选择氧化硫化物成为元素硫的方法

本发明是关于选择氧化含硫化合物为元素硫的 催化剂的。该催化剂包括至少一种催化活性材料及 选择性地，一种载体材料。催化剂比表面大于 20m 2 /g，平均孔径至少25A。在反应条件下，催化 剂对克劳斯反应基本上不显示活性。

结构化的锆溶液

本发明涉及锆溶液或溶胶，其包括：(a)锆，(b)硝酸根、乙酸根和/或氯离子，和(c)一种或多种络合剂，其为包括以下官能团的至少一种的有机化合物：胺、有机硫酸根、磺酸根、羟基、醚或羧酸基团，其中组分(a):(b)的摩尔比为1:0.7到1:4.0，组分(a):(c)的摩尔比为1:0.0005到1:0.1，和所述锆溶液或溶胶的pH小于5。本发明还涉及用于制备锆溶液或溶胶的工艺，所述工艺包括如下步骤：(a)将锆盐溶解在硝酸、乙酸和/或盐酸中，和(b)向所得溶液添加一种或多种络合剂，所述一种或多种络合剂为包括以下官能团的至少一种的有机化合物：胺、有机硫酸根、磺酸根、羟基、醚或羧酸基团，和(c)将所述溶液或溶胶加热至至少75℃的温度。此外，本发明涉及由所述锆溶液或溶胶形成或能通过所述方法获得的产品。