Abstract: A method of producing a crude product from a hydrocarbon feed is provided. A hydrocarbon feed is contacted with a catalyst containing a Col. 6-10 metal or compound thereof to produce the crude product, where the catalyst has a pore size distribution with a median pore diameter ranging from 105 ? to 150 ?, with 60% of the total number of pores in the pore size distribution having a pore diameter within 60 ? of the median pore diameter, with at least 50% of its pore volume in pores having a pore diameter of at most 600 ?, and between 5% and 25% of its pore volume in pores having a pore diameter between 1000 ? and 5000 ?.

Abstract: An exhaust gas purifying catalyst (1) is composed of: a noble metal (2); a first compound (3); and a second compound (4). The noble metal (2) is supported on the first compound (3). The exhaust gas purifying catalyst (1) includes units having a structure in which the first compound (3) supporting the noble metal (2) is surrounded by the second compound (4), and the first compound (3) supporting the noble metal (2) is isolated from one another by the second compound (4). The noble metal (2) is one or more selected from [Pt, Pd and Rh], the first compound (3) contains Ti as a main component, and the second compound (4) contains, as a main component, one or more selected from [Al and Si].

Abstract: A stabilized platinum nanoparticle has a core portion surrounded by a plurality of outer surfaces. The outer surfaces include terrace regions formed of platinum atoms, and edge and corner regions formed of atoms from a second metal. The stabilized nanoparticle may be formed by combining a platinum nanoparticle with a metal salt in a solution. Ions of the second metal react with platinum and replace platinum atoms on the nanoparticle. Platinum atoms from the edge and corner regions react with the second metal ions quicker than surface atoms from the terraces, due to a greater difference in electrode potential between the platinum atoms at the edge and corner regions, as compared to the second metal in the solution. The platinum nanoparticle may include surface defects, such as steps and kinks, which may also be replaced with atoms of the second metal. In an exemplary embodiment, the platinum nanoparticle is a cathode catalyst in an electro-chemical cell.

Abstract: The invention relates to a bulk catalyst comprising at least 60 wt % metal oxidic particles comprising one or more Group VIII metals and Group VIB metal molybdenum, comprising less than 10 mole % of a second Group VIB metal and comprising a Group V metal in an amount less than 10 mole %, which bulk catalyst has been calcined at a temperature below a temperature where the hexagonal metastable crystal structure changes to an inactive crystalline structure, and which bulk catalyst has a metastable hexagonal phase characterized by an X-ray diffraction pattern having reflections at 33-35 and 58-61 °2?; and to a process for the manufacture of the bulk catalyst, to the corresponding sulphided bulk catalyst and to the use of said bulk catalyst or sulphided bulk catalyst in the hydroprocessing of a hydrocarbon feedstock.

Abstract: A highly durable mercury oxidation catalyst contains V2O5 and MoO3 as active components, and is capable of preventing volatilization of MoO3 in the mercury oxidation catalyst. A method of producing the mercury oxidation catalyst is provided. A mercury oxidation catalyst oxidizing mercury in an exhaust gas into mercury oxide includes: TiO2 as a carrier, V2O5 and MoO3 supported on the carrier as active components, and at least one kind of element or compound selected from the group consisting of W, Cu, Co, Ni, and Zn or the compounds thereof supported on the carrier as a MoO3 volatilization preventing component.

Abstract: A method for forming a cobalt-containing Fischer-Tropsch catalyst involves precipitating a cobalt oxy-hydroxycarbonate species by turbulent mixing, during which a basic solution collides with an acidic solution comprising cobalt. The method further involves depositing the cobalt oxy-hydroxycarbonate species onto an acidic support to provide a catalyst comprising cobalt and the acidic support. The acidic support comprises a zeolite, a molecular sieve, or combinations thereof.

Abstract: In the catalyst for purifying a combustion exhaust gas containing nitrogen oxides, 50 wt. % or greater of the amount of Ru and/or Ir to be supported is adjusted to fall within a depth of 150 ?m from the surface layer of a substrate; and the catalyst is prepared by immersing the substrate in a metal colloid solution of Ru and/or Ir to be supported or an aqueous solution containing at least one compound selected from compounds of Ru and/or Ir to be supported.

Abstract: The invention is drawn to a catalyst having a substantially bimodal support phase and an active metal phase that is suitable and stable for desulfurization of high-olefin content naphtha streams with minimal octane-loss running at low hydrogen pressure. The active metal phase preferably includes cobalt, molybdenum and at least one additional metal selected from the alkali-metals group.

Abstract: A catalyst for use in the production of an unsaturated aldehyde and/or an unsaturated carboxylic acid, the catalyst comparing (or, preferably, being composed of) a mixed oxide containing molybdenum, bismuth and iron, which has improved mechanical strength, is produced by a method including the steps of (1) drying an aqueous solution or an aqueous slurry containing raw materials of the catalyst and then firstly calcining a dried product in a molecular oxygen-containing gas atmosphere to obtain a calcined product; (2) heating the calcined product obtained in Step (1) in the presence of a reducing material to obtain a reduced product having a mass loss of 0.05 to 6%; and (3) secondly calcining the reduced product obtained in Step (2) in a molecular oxygen-containing gas atmosphere.

Abstract: Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.

Abstract: A nano-particle comprising: an interior region comprising a mixed-metal oxide; and an exterior surface comprising a pure metal. In some embodiments, the mixed-metal oxide comprises aluminum oxide and a metallic pinning agent, such as palladium, copper, molybdenum, or cobalt. In some embodiments, the pure metal at the exterior surface is the same as the metallic pinning agent in the mixed-metal oxide in the interior region. In some embodiments, a catalytic nano-particle is bonded to the pure metal at the exterior surface. In some embodiments, the interior region and the exterior surface are formed using a plasma gun. In some embodiments, the interior region and the exterior surface are formed using a wet chemistry process. In some embodiments, the catalytic nano-particle is bonded to the pure metal using a plasma gun. In some embodiments, the catalytic nano-particle is bonded to the pure metal using a wet chemistry process.

Abstract: A hydroprocessing catalyst composition that comprises a shaped support that is formed from a mixture of inorganic oxide powder and catalyst fines and wherein the shaped support has incorporated therein at least one metal component, a chelating agent and a polar additive. The hydroprocessing catalyst composition is prepared by incorporating into the shaped support a metal component, a chelating agent and a polar additive. The hydroprocessing catalyst composition has particular application in the catalytic hydroprocessing of petroleum derived feedstocks.

Abstract: Process for the selective oxidation of ethane to ethylene and/or acetic acid, and/or the selective oxidation of ethylene to acetic acid, by contacting ethane and/or ethylene with a molecular oxygen-containing gas at elevated temperature in the presence of a spray-dried supported catalyst composition. The supported catalyst composition includes molybdenum, vanadium and niobium metal components, supported on a support comprising alpha-alumina. The supported catalyst is prepared by forming a slurry of the metal components and alpha-alumina support particles or an alpha-alumina support precursor, and spray-drying the slurry.

Abstract: An electrode catalyst for a fuel cell, a method of preparing the same, and a membrane electrode assembly and a fuel cell including the same. The electrode catalyst includes a catalyst particle that incorporates a plurality of palladium atoms, a plurality of atoms of a transition metal, and a plurality of atoms of a precious metal having a higher standard reduction potential than the transition metal, where all of the plurality of atoms of the transition metal are respectively surrounded by at least one of the palladium atoms, the neighboring atoms of the transition metal, or the atoms of the precious metal.

Abstract: A catalyst including active particles that have a core including a first metal oxide, and a shell including an alloy of a second metal with a reduction product of the first metal oxide; a method of preparing the catalyst; a fuel cell including the catalyst; an electrode for lithium air battery that includes the active particles; and a lithium air battery including the electrode.

Abstract: Provided are exhaust systems and components suitable for use in conjunction with gasoline engines to treat gaseous emissions such as hydrocarbons, nitrogen oxides, and carbon monoxides. Layered three-way conversion (TWC) catalysts comprise an outer layer whose rhodium is supported by an oxygen storage component, such as a ceria-zirconia composite, and the outer layer is substantially free from alumina as a support. The rhodium-containing layer can be free of all other precious metals, such as platinum and palladium. A lower palladium layer is provided where the palladium is supported by a refractory metal oxide. The lower palladium layer can be free of rhodium and platinum and can contain an oxygen storage component that is the same or different from that in the rhodium-containing layer. Methods of making and using these catalysts are also provided.

Abstract: A method for forming a cobalt-containing Fischer-Tropsch catalyst involves precipitating a cobalt oxy-hydroxycarbonate species by turbulent mixing, during which a basic solution collides with an acidic solution comprising cobalt. The method further involves depositing the cobalt oxy-hydroxycarbonate species onto a support material to provide a catalyst comprising cobalt and the support material. The support material comprises one or more of alumina, silica, magnesia, titania, zirconia, ceria-zirconia, and magnesium aluminate.

Abstract: A novel M—Pd—Cr2O3 (M?Pt, Ru, Rh, Os, Au and Ag) nanocomposite cocatalysts and its preparation method. The cocatalysts loaded on CdS photocatalyst enhances the photocatalytic activities toward H2 evolution from aqueous solutions (NH4)2SO3, a regenerable electron donor, under sunlight radiation. An embodiment provides a new and facile method and system for the preparation of M—Pd—Cr2O3 nanocomposite cocatalysts at room temperature. Pd—Cr2O3 loaded CdS photocatalyst has higher hydrogen evolution activity than that of a plain Pd metal loaded CdS and its performance is comparable to that of Pt/CdS photocatalyst. Formation of a Pd—Cr2O3 composite with reduced size of nanoparticles results in an increase in the photocatalyst activity for H2 evolution.

Abstract: Disclosed is a composition useful in the hydrolysis of sulfur compounds that are contained in a gas stream. The composition comprises alumina, a group VI metal component and a group VIII metal component. The composition has a pore structure such that a large percentage of its total pore volume is contained within the pores having a pore diameter greater than 10,000 angstroms.

Abstract: Disclosed is a method of forming a hybrid Fischer-Tropsch catalyst extrudate for use in synthesis gas conversion reactions. The method includes extruding a mixture of ruthenium loaded metal oxide support particles, particles of an acidic component and a binder sol to form an extrudate. The resulting extrudate contains from about 0.1 to about 15 weight percent ruthenium based on the weight of the extrudate. In a synthesis gas conversion reaction, the extrudate is contacted with a synthesis gas having a H2 to CO molar ratio of 0.5 to 3.0 at a reaction temperature of 160° C. to 300° C., a total pressure of 3 to 35 atmospheres, and an hourly space velocity of 5 to 10,000 v/v/hour, resulting in hydrocarbon products containing 1-15 weight % CH4; 1-15 weight % C2-C4; 70-95 weight % C5+; 0-5 weight % C21+ normal paraffins; and 0-10 weight % aromatic hydrocarbons.

Abstract: The present invention relates to petrochemistry and gas chemistry, and discloses a support for catalysis of exothermic processes, particularly the Fischer-Tropsch process, methanol synthesis, hydrogenation and purification of exhaust gases. The support comprises metallic aluminium in the form of a mixture of dispersed powders of flaky and spherical aluminium and the support is in the form of pellets, preferably cylinders, tablets, balls, obtained by extrusion, pelletization, tabletting, rounding or liquid molding. The catalyst prepared on the support comprises an active metal selected from the group consisting of Co, Fe, Ni, Ru, Rh, Pt, Pd, Cu and mixtures thereof.

Abstract: A hydrocarbon-reforming catalyst comprising a composite oxide having a composition represented by the following formula (I) in which Co, Ni and M are dispersed in the composite oxide and a process for producing a synthesis gas by using the catalyst are provided. aM.bCo.cNi.dMg.eCa.fO??(I) wherein a, b, c, d, e, and f are molar fractions, a+b+c+d+e=1, 0.0001<a?0.20, 0<b?0.20, 0?c?0.20, 0.001<(b+c)?0.20, 0.60?(d+e)?0.9989, 0<d<0.9989, 0<e<0.9989, f=the number necessary for element to keep charge equilibrium with oxygen. And M is at least one element among Group 3B elements and Group 6A elements in the Periodic Table. The reforming catalyst is able to maintain a high catalytic activity over a long period in reforming hydrocarbons.

Abstract: Exemplary embodiments of the present invention relate to the processing of hydrocarbon-containing feedstreams in the presence of an active catalyst component comprising a surface, and a metal oxide film coated on the surface of the active catalyst component. The catalysts and processes of the present invention can improve overall hydrogenation, product conversion, as well as improved resistance to catalytic deactivation due to sulfur and nitrogen compounds present in the hydrocarbon feedstreams.

Abstract: A catalyst is provided and includes fine catalyst particles of a composition represented by formula (1): PtuRuxTayTz, in which T is at least one element selected from the group consisting of Hf, W, Ni, and V; u, x, y, and z are 10 to 98.9 atm %, 0.1 to 50 atm %, 0.5 to 35 atm %, and 0.5 to 35 atm %, respectively, or formula (2): PtuRuxTayTz, in which T is at least one element selected from the group consisting of Ct, Mo, Nb, Zr, and T; u, x, y, and z are 40 to 70 atm %, 0.1 to 50 atm %, 0.5 to 15 atm %, and 0.5 to 15 atm %, respectively.

Abstract: Large quantities of explosive hydrogen-oxygen mixtures can be produced by leaks or accidents in technical plants, e.g. nuclear reactors. The invention relates to a catalyst, a catalyst system, an arrangement for recombining hydrogen with oxygen, and a method for producing a catalyst. The inventive catalyst is characterized in that the ignition point of the mixture is exceeded under no circumstances even though the catalyst works in a strictly passive manner without outside intervention and the recombination is an exothermal reaction. The basic idea is to design the catalyst such that the catalyst autonomously limits the activity thereof in accordance with the prevailing temperature.

Abstract: In one embodiment, a visible light responsive photocatalyst powder has organic gas decomposition performance that responds nonlinearly to an amount of irradiated light under visible light in an illuminance range of not less than 200 lx nor more than 2500 lx. The visible light responsive photocatalyst powder has a gas decomposition rate of 20% or more, for example, when visible light having only a wavelength of not less than 380 nm and an illuminance of 2500 lx is irradiated, the gas decomposition rate (%) being set as a value calculated based on [formula: (A?B)/A×100], where A represents a gas concentration before light irradiation and B represents a gas concentration when not less than 15 minutes have elapsed from the light irradiation and, at the same time, the gas concentration is stable, the gas concentrations being measured while allowing an acetaldehyde gas having an initial concentration of 10 ppm to flow into a flow-type apparatus in which 0.2 g of a sample is placed.

Abstract: The invention relates to a catalyst for electro-chemical applications comprising an alloy of platinum and a transition metal, wherein the transition metal has an absorption edge similar to the absorption edge of the transition metal in oxidic state, measured with x-ray absorption near-edge spectroscopy (XANES) wherein the measurements are performed in concentrated H3PO4 electrolyte. The invention further relates to a process for an oxygen reduction reaction using the catalyst as electrocatalyst.

Abstract: Disclosed are a mixed catalyst comprising catalyst A and catalyst B mixed in a volume ratio ranging from 1:0.1 to 1:10, heavy crude oil ebullated-bed hydrotreating systems comprising at least one ebullated-bed reactor comprising the mixed catalyst, and heavy crude oil ebullated-bed hydrotreating processes comprising: introducing heavy crude oil and hydrogen into at least one ebullated-bed reactor, reacting the heavy crude oil and the hydrogen with the mixed catalyst in the at least one ebullated-bed reactor to produce reaction products; and discharging the reaction products from the top of the at least one ebullated-bed reactor.

Abstract: The invention relates to a multilayer catalyst for the partial oxidation of hydrocarbons in gaseous phase, comprising a monolithic ceramic or metallic substrate having a solid macroporous structure consisting of one or more structures, on which a first active layer with a crystal-line perovskitic structure is deposited, having general formula AxA? 1-xByB? 1-YO3±? wherein: A is a cation of at least one of the rare earth elements, A? is a cation of at least one element selected from groups Ia, IIa and VIa of the periodic table of elements, B is a cation of at least one element selected from groups IVb, Vb, VIb, VIIb, or VIII of the periodic table of elements, B? is a cation of at least one element selected from groups IVb, Vb, VIb, VIIb or VIII of the periodic table of elements Mg2+ or Al3+, x is a number which is such that 0?x?1, y is a number which is such that 0?y?1, and ? is a number which is such that 0???0, 5, a second more external active layer consisting of a dispersion of a noble metal and a possible s

Abstract: The isomerization catalyst is a solid acid catalyst formed with a base of tungstated zirconium mixed oxides loaded with at least one hydrogenation/dehydrogenation metal catalyst from Groups 8-10 (IUPAC, 2006) and impregnated with at least one alkali metal from Group 1 (IUPAC, 2006). The metal from Groups 8-10 is preferably selected from platinum, palladium, ruthenium, rhodium, iridium, osmium and mixtures thereof, and most preferably is platinum. The Group I alkali metal is selected from lithium, sodium, potassium rubidium and cesium and mixtures thereof, and is preferably lithium, sodium, or potassium. Preferable, the catalyst forms, by weight, a base having between about 80-90% zirconium mixed oxides and between about 10-20% tungstate; between about 0.1-3.00% Group 8-10 metal; and between about 0.01-1.00% Group 1 alkali metal.

Abstract: The invention relates to a hydrodesulfurization nanocatalyst, use of the hydrodesulfurization nanocatalyst in a hydrodesulfurization process and a process for producing the hydrodesulfurization nanocatalyst. The hydrodesulfurization nanocatalyst can include a nanostructured alumina material, at least one metal selected from group VI B of the periodic table of elements, and at least one metal selected from group VIII B of the periodic table of elements.

Abstract: A dehydrogenation catalyst is described that comprises an iron oxide, an alkali metal or compound thereof, and rhenium or a compound thereof. A process for preparing a dehydrogenation catalyst comprising preparing a mixture of iron oxide, an alkali metal or compound thereof, and rhenium or a compound thereof is also described. Additionally, a dehydrogenation process using the catalyst and a process for preparing polymers are described.

Abstract: Disclosed is a composition useful in the hydrolysis of sulfur compounds that are contained in a gas stream. The composition comprises alumina, a group VI metal component and a group VIII metal component. The composition has a pore structure such that a large percentage of its total pore volume is contained within the pores having a pore diameter greater than 10,000 angstroms.

Abstract: Carried catalysts for producing alcohols from gaseous mixtures containing hydrogen and carbon monoxide, e.g., syngas, are made from precursors of a particulate inert porous catalyst substrate impregnated with the oxides or salts of molybdenum, cobalt, and a promoter alkali or alkaline earth metal, in a molybdenum to cobalt molar ratio of from about 2:1 to about 1:1, preferably about 1.5:1, and in a cobalt to alkali metal molar ratio of from about 1:0.08 to about 1:0.30, preferably about 1:0.26-0.28. The catalysts are “activated” by reducing the catalyst precursor material in a reducing environment at from about 600° C. to about 900° C., preferably about 800° C. Alcohols are produced by passing gas mixtures containing at least CO and H2 in ratios of from 1:1 to 3:1 through a reactor containing the catalyst, at from about 240° C. to about 270° C., and a pressure of 1000-1200 psi.

Abstract: A bulk metal oxide catalyst composition of the general formula (X)b(M)c(Z)d(O)e ??(I) wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron, and zinc; one of b and c is the integer 1; and d and e and the other of b and c each are a number greater than 0 such that the molar ratio of b:c is in the range of from 0.5:1 to 5:1, the molar ratio of d:c is in the range of from 0.2:1 to 50:1, and the molar ratio of e:c is in the range of from 3.7:1 to 108:1; is prepared by controlled (co)precipitation of component metal compounds, refractory oxide material, and alkali compound in protic liquid. Resulting compositions find use in hydrotreatment processes involving particularly hydrodesulphurisation and hydrodenitrification.

Abstract: A catalyst composition and process facilitates the oxidative reforming of low molecular weight hydrocarbons, such as methane, to other hydrocarbons having 2 or more carbon atoms (“C2+ compounds”). Compositions having a formula comprising a metal, tungsten, manganese and oxygen effectively catalyze the oxidative reforming of methane with a high rate of conversion and selectivity. Controlling feed gas flow and catalyst bed temperature controls the exothermic OCM reaction, avoiding runaway reactions or coking. A single or multiple reactor system can be utilized for the oxidative reforming reactions. Using two reactors in series, catalyst embodiments produced favorable yields of C2+ compounds, in the presence or absence of a distributed oxygen feed, and with or without interstage effluent cooling. Removal of desirable end products from the reactor effluent, followed by recycling of the residual effluent, increases the conversion to, and ultimate yield of desirable end product.

Abstract: Process for producing homopolymers or copolymers of conjugated dienes by contacting monomeric material having at least one conjugated diene with a catalyst system including two or more different transition metal compounds and optionally one or more activators. Preferred transition metal compounds are based on cobalt and chromium, especially complexes thereof having benzimidazole ligands.

Abstract: The invention discloses a multi-metallic bulk catalyst with layered structure, wherein the metals in the multi-metallic bulk catalyst is consisted of a Group VIII metal MI, at least one metal MII with the valence of +3 and at least two Group VIB metals MIII+MIV, wherein (the mole number of MI+the mole number of MII):(the mole number of MIII+the mole number of MIV) is from 1:9 to 9:1; the mole number of MI:the mole number of MII is from 1:5 to 5:1; and the mole number of MIII:the mole number of MIV is from 1:5 to 5:1. The invention also discloses the preparation method and use of the above catalyst. The invention is use for the hydrodesulfurization of diesel distillate including 4,6-dimethyldibenzothiophene, wherein the catalyst exhibits a extreme high hydrodesulfurization activity. Thus, the ultra-deep hydrodesulfurization is achieved and the cost of the bulk catalyst is reduced.

Abstract: A catalyst and a method of preparation of said catalyst is described herein. The catalyst includes one or more metals from Columns 6-10 of the Periodic Table and/or one or more compounds of one or more metals from Columns 6-10 of the Periodic Table, a pore size distribution with a median pore diameter ranging from 105 ? to 150 ?, with 60% of the total number of pores in the pore size distribution having a pore diameter within 60 ? of the median pore diameter, with at least 50% of its pore volume in pores having a pore diameter of at most 600 ?, and between 5% and 25% of its pore volume in pores having a pore diameter between 1000 ? and 5000 ?. Methods of producing said catalyst are described herein. Crude products and products made from said crude products are described herein.

Abstract: The present invention relates to a method of preparing a heteropoly acid catalyst used for the production of methacrylic acid by gas phase oxidation of methacrolein, more precisely a method of preparing a heteropoly acid catalyst comprising the steps of preparing a slurry by adding metal precursors and ammonium salt to protonic acid Keggin-type heteropoly acid aqueous solution and stirring thereof; and drying, molding and firing the slurry to give a catalyst. The present invention provides a method of preparing a heteropoly acid catalyst exhibiting high methacrolein conversion rate and methacrylic acid selectivity without pre-firing process by using high purity protonic acid Keggin-type heteropoly acid and ammonium salt.

Abstract: The present invention concerns a catalyst for carrying out hydrocarbon synthesis starting from a mixture comprising carbon monoxide and hydrogen, the active phase of which comprises at least one metal from group VIII deposited on a support formed by at least one oxide, in which said metal from group VIII is selected from the group constituted by cobalt, nickel, ruthenium or iron, and in which said catalyst has an atomic ratio (Co/Al)not ground/(CO/Al)ground, measured by X-ray photo-emission spectroscopy, in the range 1 to 12. The invention also concerns the catalyst preparation process and its use.

Abstract: Process for the preparation of a catalytic specie consisting essentially of a metallic support, which is coated with a ceramic active phase layer, mainly compound of the general formula (I): [RhxNiyMglAlm(OH)2]z+(An?z/n)kH2O,??(I) wherein An? is mainly a silicate or a polysilicate anion; 0?x?0.3; 0?y?0.9; 0?l?0.9; 0?m?0.5; 0?k?10; x+y>0; 0.5?y+l?0.9; x+y+l+m=1; and z is the total electrical charge of the cationic element or a compound of the general formula (II): [AzA?1-z][B1-x-yNixRhy]O3-???(II) wherein A and A? are different and are selected from the Lanthanide or the Actinide families or from the group IIa of the Mendeleev's periodical table of elements; B is selected from the transition metal groups of columns IIIb, IVb, Vb, VIb, VIIb, Ib and IIb and group VIIIb of the Mendeleev's periodical table of elements; 0?x?0.7, 0?y?0.5, 0?x+y?0.

Abstract: A supported catalyst with a solid sphere structure of the present invention includes an oxide supporting body and a metal such as Ni, Co, Fe, or a combination thereof distributed on the surface and inside of the supporting body. The supported catalyst with a solid sphere structure can maintain a spherical shape during heat treatment and can be used with a floating bed reactor due to the solid sphere structure thereof.

Abstract: A catalyst system for generating at least one polyol from a feedstock comprising saccharide is performed in a continuous or batch manner. Generating the polyol involves, contacting, hydrogen, water, and a feedstock comprising saccharide, with a catalyst system to generate an effluent stream comprising at least one polyol and recovering the polyol from the effluent stream. The catalyst system comprises at least one unsupported component and at least one supported component.

Abstract: Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.

Abstract: The invention relates to a nickel tungsten bulk catalyst, to a process for the manufacture of said catalyst and to the use of said catalyst for the hydrotreatment, in particular the hydrodesulphurisation and hydrodenitrogenation of hydrocarbon feedstock. The catalyst comprises nickel tungsten metal oxidic particles obtainable by a process comprising forming a slurry of a first solid metal compound comprising Group VNI metal nickel and a second solid metal compound comprising Group VIB metal tungsten in a protic liquid, reacting the first and second solid metal compounds at elevated temperature whereby the first and second solid metal compounds remain at least partly in the solid state during the entire reaction to form the nickel tungsten oxidic bulk catalyst.

Abstract: A catalyst system for the reduction of NOx comprises a catalyst comprising a metal oxide catalyst support, a catalytic metal oxide comprising at least one of gallium oxide or silver oxide, and at least one promoting metal selected from the group consisting of silver, cobalt, molybdenum, tungsten, indium, bismuth and mixtures thereof. The catalyst system further comprises a gas stream comprising an organic reductant, and a compound comprising sulfur. A method for reducing NOx utilizing the said catalyst system is also provided.

Abstract: A pliable refractory metal carrier (46) may have coated thereon an anchor layer (47) to improve adherence to the carrier (46) of a catalytic coating (48). The conformable catalyst member (26, 82, 82?, 126, 226, 326) may be bent to conform to a curved or bent exhaust pipe (20, 220, 320) within which it is mounted. The pliable metal carrier may be in the form of a tube such as carrier (46) having perforations (54) formed therein, or it may be a metal strip (76) which is folded into accordion pleats (80) and has perforations (78) formed therein. The perforations (54, 78) serve to permit the passage of exhaust gas therethrough. A series of interior closures (58) and annular baffles (60) may be provided to import a serpentine flow path to gases flowed through an exhaust pipe (22) containing a conformable catalyst member (226) therein. A mounting member (68) may be supplied to fasten one end of the conformable catalyst member (226) to the discharge end of an exhaust pipe (220).

Abstract: The invention relates to a process for recovering Group VIB metals from a catalyst, in particular a spent bulk catalyst, comprising one or more Group VIB metals and one or more Group VIII metals. Further, the invention relates to a solid Group VIB metal compound obtainable by the process according to the invention having the general formula H2XO4, wherein X=W1-yMoy, wherein y is between 0 and 1 and to its use in a process for the manufacture of a fresh catalyst.

Abstract: The cathode catalyst includes a zeolite-containing carrier, and a ruthenium (Ru)-M-tellurium (Te) alloy supported on the carrier, where M is selected from the group consisting of tungsten (W), molybdenum (Mo), and combinations thereof. The cathode catalyst has a high activity and selectivity for a reduction reaction of an oxidant, and is highly stable under an acidic atmosphere thereby being capable of improving performances of a membrane-electrode assembly and fuel cell system.