Abstract: A catalyst body comprising a carrier and a catalyst layer containing an alkali metal and/or an alkaline earth metal, loaded on the carrier, which catalyst further contains a substance capable of reacting with the alkali metal and/or the alkaline earth metal, dominating over the reaction between the main components of the carrier and the alkali metal and/or the alkaline earth metal. With this catalyst body, the deterioration of the carrier by the alkali metal and/or the alkaline earth metal is prevented; therefore, the catalyst body can be used over a long period of time.

Abstract: A catalyst includes a carrier body and a catalytic portion carried by the carrier body. The catalytic portion includes a plurality of distinct layers of catalytic material, which layers may be deposited through atomic layer deposition techniques. The catalyst may have a selectivity for the conversion of alkanes to alkenes of over 50%. The catalyst may be incorporated in a reactor such as a fluidized bed reactor or a single pass reactor.

Abstract: A process for the ammoxidation of a saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon to produce an unsaturated nitrile, said process comprising contacting the saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon with ammonia and an oxygen-containing gas in the presence of a catalyst composition comprising molybdenum, vanadium, antimony, niobium, tellurium, optionally at least one element select from the group consisting of titanium, tin, germanium, zirconium, hafnium, and optionally at least one lanthanide selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium. Such catalyst compositions are effective for the gas-phase conversion of propane to acrylonitrile and isobutane to methacrylonitrile (via ammoxidation).

Abstract: Supported catalysts comprising a support having a mean diameter of ?78 ?m, a vanadium oxide, an antimony oxide, one or more alkali metal or alkaline earth metal oxides, and one or more oxides of tungsten, molybdenum, titanium, iron, cobalt, nickel, manganese, potassium, copper or mixtures thereof; processes for preparing said catalysts; and processes for preparing an aromatic or heteroaromatic nitrile in the presence of such a supported catalyst.

Abstract: Catalytically active multielement oxide materials which contain at least one of the elements Nb and W and the elements Mo, V and Cu are prepared by a process in which an intimate dry blend containing ammonium ions is prepared and said dry blend is subjected to a thermal treatment in an atmosphere having a low molecular oxygen content at elevated temperatures, a portion of the ammonium ions contained in the intimate dry blend being decomposed with liberation of ammonia and the oxygen content of the thermal treatment atmosphere being increased in the course of the thermal treatment.

Abstract: The use of a complex oxide having the following composition (I). M012VaX1bX2cX3dX4eOx (I) wherein Mo is molybdenum; V is vanadium; 0 is oxygen; X1 is at least one element selected from tungsten, titanium, tantalum and niobium; X2 is at least one element selected from copper, antimony, tellurium and bismuth; X3 is at least one element selected from alkaline earth metals; X4 is at least one element selected from alkaline metals; and O<a?10; O?b?4; 0<c?5; O<d?2; 0?e?2; and x is a numerical value determined by the extents of the oxidation of the other elements, as a catalyst in the preparation of a partial oxidation product of a lower alcohol by direct oxidation of a lower alcohol in the vapor phase.

Abstract: A methanol oxidation catalyst is provided, which includes nanoparticles having a composition represented by the following formula 1: PtxRuyTzQu ??formula 1 In the formula 1, the T-element is at least one selected from a group consisting of Mo, W and V and the Q-element is at least one selected from a group consisting of Nb, Cr, Zr and Ti, x is 40 to 90 at. %, y is 0 to 9.9 at. %, z is 3 to 70 at. % and u is 0.5 to 40 at. %. The area of the peak derived from oxygen bond of T-element is 80% or less of the area of the peak derived from metal bond of T-element in a spectrum measured by an X-ray photoelectron spectral method.

Abstract: A methanol oxidation catalyst is provided, which includes nanoparticles having a composition represented by the following formula (1): PtxRuyMozTu ??(1) In the formula (1), the T-element is at least one selected from the group consisting of W and V, x is 20 to 80 at. %, y is 10 to 60 at. %, z is 1 to 30 at. % and u is 1 to 30 at. %. The area of the peak derived from oxygen bond of T-element is 80% or less of the area of the peak derived from metal bond of T-element in a spectrum measured by an X-ray photoelectron spectral method.

Abstract: A catalyst composition having the formula: Mo1VaSbbNbcMdOx wherein M is gallium, bismuth, silver or gold, a is 0.01 to 1, b is 0.01 to 1, c is 0.01 to 1, d is 0.01 to 1 and x is determined by the valence requirements of the other components. Other metals, such as tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, platinum, boron, arsenic, lithium, sodium, potassium, rubidium, calcium, beryllium, magnesium, cerium, strontium, hafnium, phosphorus, europium, gadolinium, dysprosium, holmium, erbium, thulium, terbium, ytterbium, lutetium, lanthanum, scandium, palladium, praseodymium, neodymium, yttrium, thorium, tungsten, cesium, zinc, tin, germanium, silicon, lead, barium or thallium may also be components of the catalyst. This catalyst is prepared by co-precipitation of metal compounds which are calcined to form a mixed metal oxide catalyst that can be used for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process.

Abstract: Embodiments of the present invention are directed to ternary and/or quaternary catalyst alloys for a direct methanol fuel cell (DMFC). The catalyst has the composition (Pt1-xRux)yM?zM?1-y-z, where M? is selected from the group consisting of W, Mo, Nb, and Ta; M? is selected from the group consisting of V, Co, Ni, Mn, and Cu; x ranges from about 0 to about 1; y ranges from about 0.01 to about 0.99; and y+z is about equal to 1. The catalyst may be deposited onto a porous carrier, and the deposition method may include ion-beam sputtering. The onset voltages of the present compositions are lower than that of conventional Pt—Ru binary systems by approximately 0.355 volts, and thus provide enhanced catalytic activity.

Abstract: Catalytic compositions for conversion of substituted aromatic feed materials to oxidized products comprising aromatic carboxylic acid derivatives of the substituted aromatic feed materials comprise at least two metal or metalloid elements, at least one of which is palladium, platinum, vanadium or titanium, and at least one of which is a Group 5, 6, 14 or 15 metal or metalloid. A process for oxidizing substituted aromatic feed materials comprises contacting the feed material with oxygen in the presence of such a catalytic composition in a liquid reaction mixture.

Abstract: Disclosed is an oxide catalyst for use in catalytic oxidation or ammoxidation of propane or isobutane in the gaseous phase, which comprises a composition represented by the Mo1VaSbbNbcZdOn (wherein: Z is at least one element selected from the group consisting of tungsten, chromium, titanium, aluminum, tantalum, zirconium, hafnium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, zinc, boron, indium, germanium, tin, lead, bismuth, yttrium, gallium, rare earth elements and alkaline earth metals; and a, b, c, d, and n are, respectively, the atomic ratios of V, Sb, Nb, Z and O, relative to Mo), wherein 0.1?a<0.4, 0.1<b?0.4, 0.01?c?0.3, 0?d?1, with the proviso that a<b, and n is a number determined by and consistent with the valence requirements of the other elements present. Also disclosed is a process for producing an unsaturated carboxylic acid or an unsaturated nitrile by using the above-mentioned oxide catalyst.

Abstract: Multimetal oxide materials which contain Mo and V and, if required, one or more of the elements from the group consisting of lanthanides, transition elements of the Periodic Table of the Elements and elements of the third to sixth main group of the Periodic Table of the Elements and which are prepared in the presence of an alkali metal other than Li and have the i-phase structure are used as active material in catalysts for partial gas-phase oxidations.

Abstract: The present invention provides a method for producing a catalyst comprising an inert carrier an a mixed metal oxide as a catalytically active component supported on the inert carrier, the method comprising the steps of: a) adding organic acid(s) into solvent(s) and salt of each metal component which will form a mixed metal oxide, to prepare a catalyst precursor solution for the mixed metal oxide; b) adjusting pH of the catalyst precursor solution using a basic solution; c) containing the catalyst precursor solution for the mixed metal oxide, of which the pH is adjusted, on the inert carrier, d) removing the solvent(s); and e) calcining the resultant from step d. The catalyst produced by the present method has improved reproducibility, activity and yield, while maintaining a high selectivity.

Abstract: The present invention is directed to high activity titanium oxide DeNOx catalysts. In preferred embodiments, by depositing vanadium oxide on a titania supported metal oxide such as tungsten oxide, an improved catalyst may be generated. This catalyst may be used in the treatment of exhaust from sources such as automobiles and industrial plants.

Abstract: A process for preparing a mixed metal oxide catalyst. The process includes the steps of admixing metal compounds, at least one of which is an oxygen containing compound, and at least one solvent to form a solution, removing the solvent from the solution to obtain a catalyst precursor, calcining the catalyst precursor at a temperature from about 350° C. to about 850° C. under a gaseous atmosphere comprising CO2, and forming a mixed-metal oxide catalyst. A process for reducing the formation of tellurium metal in a mixed metal oxide catalyst including tellurium is also provided.

Abstract: An object of the present invention is to provide: a catalyst for production of acrylic acid which is a catalyst usable for production of acrylic acid and is excellent in the catalytic performances such as catalytic activity and in the physical properties such as physical strength of the catalyst itself; and a process for production of acrylic acid using this catalyst. As a means of achieving this object, a catalyst for production of acrylic acid according to the present invention is a catalyst obtained by drying a mixed liquid of starting materials including molybdenum and vanadium as essential components to give a dried material, molding the dried material with a liquid binder, and calcining the resultant molding, with the catalyst being characterized in that an ignition loss ratio of the dried material is from 5 to 40% by mass.

Abstract: A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.

Abstract: A process fro producing fro producing a high-performance catalyst for use in a reaction for acrylic acid production from propane or propylene through air oxidation, is provided. A process for producing a metal oxide catalyst having the following composition formula, the process comprising the following steps (1) and (2): Composition formula MoViAjBkCxOy (wherein A is Te or Sb; B is at least one element selected from the group consisting of Nb, Ta, and Ti; C is Si or Ge; i and j each are 0.01-1.5 and j/i is from 0.3 to 1.0; k is 0.001-3.0; x is 0.002-0.

Abstract: The invention relates to mixed oxide catalysts for the catalytic gas-phase oxidation of olefins and methylated aromatics, processes for producing the catalysts and the reaction with air or oxygen in the presence of inert gases in various ratios at elevated temperatures and pressure to form aldehydes and carboxylic acids.

Abstract: The present invention is directed to molybdenum compositions and methods for making such metal oxide compositions, specifically, such compositions having high surface area, high metal/metal oxide content, and/or thermal stability with inexpensive and easy to handle materials.

Abstract: An object of the present invention is to provide: a catalyst for production of acrylic acid which catalyst is so high active as to give a still higher selectivity of acrylic acid (which is the objective product) or a long-catalytic-life-time catalyst for production of acrylic acid which catalyst is so high active as to be able to give a high acrylic acid yield while suppressing the temperature rise of the oxidation reaction to a low one; and processes for production of acrylic acid using these catalysts.

Abstract: A support for a gas-phase oxidation catalyst, the support including a solid acid, of which acid strength (H0) meets an inequality: ?5.6?H0?1.5; a gas-phase oxidation catalyst including the above support and a complex oxide containing molybdenum and vanadium as essential components, the complex oxide being supported on the support; a process for producing acrylic acid by gas-phase catalytic oxidation of acrolein with molecular oxygen, the process including carrying out the gas-phase catalytic oxidation in a presence of the above gas-phase oxidation catalyst; and a process for producing the above support, the process including controlling an acid strength (H0) of a solid acid so as to meet an inequality: ?5.6?H0?1.5 by adjusting a calcination temperature in a preparation of the solid acid contained in the support.

Abstract: The Fischer-Tropsch catalyst of the present invention is a transition metal-based catalyst having a high surface area, a smooth, homogeneous surface morphology, an essentially uniform distribution of cobalt throughout the support, and a small metal crystallite size. In a first embodiment, the catalyst has a surface area of from about 100 m2/g to about 250 m2/g; an essentially smooth, homogeneous surface morphology; an essentially uniform distribution of metal throughout an essentially inert support; and a metal oxide crystallite size of from about 40 ? to about 200 ?. In a second embodiment, the Fischer-Tropsch catalyst is a cobalt-based catalyst with a first precious metal promoter and a second metal promoter on an aluminum oxide support, the catalyst having from about 5 wt % to about 60 wt % cobalt; from about 0.0001 wt % to about 1 wt % of the first promoter, and from about 0.01 wt % to about 5 wt % of the second promoter.

Abstract: Process for the regeneration of exhausted catalysts, containing one or more calcium aluminates, for steam cracking reactions, comprising treating said exhausted catalysts in a stream of water vapour at a temperature ranging from 700 to 950° C., preferably from 720 to 850° C., and at a pressure ranging from 0.5 to 2 atm.

Abstract: A process for charging a longitudinal section of a catalyst tube with a homogeneous fixed catalyst bed section whose active composition is at least one multielement oxide or comprises elemental silver on an oxidic support body and whose geometric shaped catalyst bodies and shaped inert bodies have a specific inhomogeneity of their longest dimensions.

Abstract: Catalytic compositions and processes are disclosed for economical conversions of lower alkane hydrocarbons. Broadly, the present invention discloses solid compositions containing mixed metal oxides that exhibit catalytic activity for ammoxidation of lower alkane hydrocarbons to produce an unsaturated nitrile in high yield. Generally, these solid oxide compositions comprise, as component elements, molybdenum (Mo), vanadium (V) niobium (Nb) and at least one active element selected from the group consisting of the elements having the ability to form positive ions. Mixed metal oxide catalytic compositions advantageously comprise one or more crystalline phases at least one of which phases has predetermined unit cell volume and aspect ratio. Also described are methods for forming the improved catalysts having the desired crystalline structure and ammoxidation processes for conversion of lower alkanes.

Abstract: Catalytic compositions and processes are disclosed for economical conversions of lower alkane hydrocarbons. Broadly, the present invention discloses solid promoter treated compositions containing mixed metal oxides that exhibit catalytic activity for ammoxidation of lower alkane hydrocarbons to produce an unsaturated nitrile in high yield. Generally, these solid oxide compositions comprise, as component elements, molybdenum (Mo), vanadium (V) niobium (Nb) and at least one active element selected from the group consisting of the elements having the ability to form positive ions. Mixed metal oxide catalytic compositions advantageously are formed process steps comprising impregnation of a base catalyst with an aqueous medium comprising sources of one or more promoter element drying the resulting material; and thereafter subjecting the dried material to heat treatment, under a gaseous atmosphere that is substantially free of dioxygen, at elevated temperatures of at least 400° C.

Abstract: A catalyst formulation for an organic fuel cell includes a noble metal and an admetal. The catalyst formulation can include a noble metal and an admetal in a heterogeneous mixture or a solid solution with up to about 90% degree of alloying. The admetal can encourage the oxidation of catalyst poisons at room temperature and therefore reduces the exhaustion of the fuel cell.

Abstract: A catalyst for gas phase oxidation of methylbenzenes in the presence of molecular oxygen to produce corresponding aromatic aldehydes, a method for preparing the catalyst, and a method for producing aromatic aldehydes from methylbenzenes by using the catalyst. The catalyst comprises a compound represented by the following formula (1): WaXbYcOx ??(1) wherein W represents a tungsten atom, X represents one or more alkali metals selected from the group consisting of Li, Na, K, Rb, and Cs, Y represents one or more elements selected from the group consisting of Fe, Co, Ni, Cu, Mn, Re, Cr, V, Nb, Ti, Zr, Zn, Cd, Y, La, Ce, B, Al, Sn, Mg, Ca, Sr, and Ba, O stands for an oxygen atom, and the ratio of a:b:c is 12:0.001˜1:0˜5.

Abstract: Novel sorbent systems for the desulfurization of cracked-gasoline and diesel fuels are provided which are comprised of a bimetallic promotor on a particulate support such as that formed of zinc oxide and an inorganic or organic carrier. Such bimetallic promotors are formed of at least two metals of the group consisting of nickel, cobalt, iron, manganese, copper, zinc, molybdenum, tungsten, silver, tin, antimony and vanadium with the valence of same being reduced, preferably to zero. Processes for the production of such sorbents are provided wherein the sorbent is prepared from impregnated particulate supports or admixed to the support composite prior to particulation, drying, and calcination. Further disclosed is the use of such novel sorbents in the desulfurization of cracked-gasoline and diesel fuels whereby there is achieved not only removal of sulfur but also an increase in the olefin retention in the desulfurized product.

Abstract: A catalyst for fuel reforming including a metal catalyst that includes at least one active component A selected from the group consisting of Pt, Pd, Ir, Rh and Ru; and an active component B that is at least one metal selected from the group consisting of Mo, V, W, Cr, Re, Co, Ce and Fe, oxides thereof, alloys thereof, or mixtures thereof, and a carrier impregnated with the metal catalyst, and a method of producing hydrogen by performing a fuel reforming reaction using the catalyst for fuel reforming. The catalyst for fuel reforming has excellent catalytic activity at a low temperature and improved hydrogen purity. Therefore, when the catalyst for fuel reforming is used, high-purity hydrogen, which can be used as a fuel of a fuel cell, can be produced with high purity.

Abstract: Process for modifying catalysts via the deposition of carbon containing residues in the presence of one or more solvents, where the gas phase over the catalyst treatment solution during the treatment is air or an inert gas, and/or the liquid phase contains a templating agent and/or base. The modified catalyst can be used for stereo-, chemo- and regioselective transformations of organic compounds.

Abstract: A process for preparing a coated catalyst in which a finely divided mixture of a multielement oxide comprising the elements Mo and V and a molybdenum oxide or a molybdenum oxide former is applied to the surface of a support body as an active composition.

Abstract: The present invention is to provide a catalyst for removing nitrogen oxides which is capable of keeping sufficient denitrification performance, i.e., a high removal rate of nitrogen oxides in exhaust gas having a high NO2 content especially under conditions where the ratio of NO2/NO in exhaust gas is 1 or higher, a catalyst molded product therefor, and an exhaust gas treating method. The catalyst is designed for removing nitrogen oxides, which is used to denitrify exhaust gas containing nitrogen oxides having a high NO2 content, which comprises: at least one kind of oxide selected from the group consisting of copper oxides, chromium oxides, and iron oxides as a component for reducing NO2 to No; and which further comprises: at least one kind of titanium oxide; at least one kind of tungsten oxide; and at least one kind of vanadium oxide as components for reducing NO to N2.

Abstract: Carbon fibers containing at least one element (I) selected from the group consisting of Fe, Co and Ni, at least one element (II) selected from the group consisting of Sc, Ti, V, Cr, Mn, Cu, Y, Zr, Nb, Tc, Ru, Rh, Pd, Ag, a lanthanide, Hf, Ta, Re, Os, Ir, Pt and Au, and at least one element (III) selected from the group of W and Mo, wherein the element (II) and the element (III) each is 1 to 100 mol % relative to the mols of element (I).

Abstract: This invention relates to methods for making a stabilized transition alumina of enhanced hydrothermal stability, which include the introduction of at least one structural stabilizer; a steaming step before or after the introduction step, wherein steaming is effective in transforming a transition alumina at least partially to boehmite and/or pseudoboehmite; and a calcining step to create a stabilized transition alumina. The combination of the structural stabilizer and the steaming step is believed to impart high hydrothermal stability to the alumina crystal lattice. Particularly preferred structural stabilizers include boron, cobalt, and zirconium. The stabilized transition alumina is useful as a catalyst support for high water partial pressure environments, and is particularly useful for making a catalyst having improved hydrothermal stability. The invention more specifically discloses Fischer-Tropsch catalysts and processes for the production of hydrocarbons from synthesis gas.

Abstract: Disclosed is an oxide catalyst for use in catalytic oxidation or ammoxidation of propane or isobutane in the gaseous phase, which comprises a composition represented by the Mo1VaSbbNbcZdOn (wherein: Z is at least one element selected from the group consisting of tungsten, chromium, titanium, aluminum, tantalum, zirconium, hafnium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, zinc, boron, indium, germanium, tin, lead, bismuth, yttrium, gallium, rare earth elements and alkaline earth metals; and a, b, c, d, and n are, respectively, the atomic ratios of V, Sb, Nb, Z and O, relative to Mo), wherein 0.1?a<0.4, 0.1<b?0.4, 0.01?c?0.3, 0?d?1, with the proviso that a<b, and n is a number determined by and consistent with the valence requirements of the other elements present. Also disclosed is a process for producing an unsaturated carboxylic acid or an unsaturated nitrile by using the above-mentioned oxide catalyst.

Abstract: A catalyst for production of acrylic acid which catalyst is so high in activity as to give a still higher selectivity of acrylic acid or a long-catalytic-life-time catalyst for production of acrylic acid which catalyst is so high in activity as to be able to give a high acrylic acid yield while suppressing the temperature rise of the oxidation reaction to a low one; and processes for production of acrylic acid using these catalysts. The catalyst includes an oxide and/or a composite oxide as an essential catalytic component, wherein the oxide and/or the composite oxide has a metal element composition shown by general formula (1): MoaVbWcCudOx ??(1) (wherein: when a=12, then 1?b?14, 0?c?12, 0 ?d?10, and 0<c+d; and x is a numerical value determined by oxidation states of the elements); with any of the vanadium, tungsten, and copper being maldistributed in the surface side or core side of the catalyst.

Abstract: The present invention relates to a process for producing a metal oxide catalyst which is suitable for production of acrylic acid or acrylonitrile in one stage by a catalytic oxidation reaction of propane in a high yield. The present invention is characterized by using a fine particle of metallic tellurium obtained by reducing a Te compound with a reductant as a raw material for producing an oxide catalyst including metal elements Mo—V—Nb—Te. The fine particle of metallic tellurium is preferably one containing primary particles having a particle size of not more than 4.0 ?m. By using a metal oxide obtained by the process of the present invention, acrylic acid can be produced from propane by a one-stage oxidation reaction in a higher yield not less than 40%.

Abstract: An ammoxidation catalyst comprising a molybdenum (component (1)), bismuth (component (2)), at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese and copper (component (3)) and at least one element selected from the group consisting of lanthanum, cerium, praseodymium and neodymium (component (4)), over which an organic compound is subject to ammoxidation which is a composite oxide fluid bed catalyst, is prepared by i) preparing a first solution that comprises at least a portion of component (1), at least a portion of component (2), and at least a portion of component (3) but none of component (4); ii) preparing a second solution by adding a solution of component (4) to the first solution; and iii) drying the second solution obtained and calcining the solid matter obtained from the drying step.

Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; calcining the recovered insoluble material in a non-oxidizing atmosphere; admixing the calcined recovered insoluble material with (i) at least one promoter element or compound thereof and (ii) at least one solvent for the at least one promoter element or compound thereof; removing the at least one solvent to form a catalyst precursor; and calcining the catalyst precursor.

Abstract: A method for producing a catalyst by contacting a mixed metal oxide catalyst with water, and optionally, an aqueous metal oxide precursor to produce a modified mixed metal oxide, and calcining the modified mixed metal oxide.

Abstract: A heavy oil is hydrorefined using a hydrorefining catalyst. A spent hydrorefining catalyst whose activity has decreased is heat treated (S1) and pulverized to obtained a regenerated powder (S2). This regenerated powder is fractionated according to its metal content (S3), formed (S6), dried (S7), and calcined (S7) to manufacture a regenerated catalyst whose volume of pores with a diameter of 50 to 2000 nm is at least 0.2 ml/g, and whose volume of pores with a diameter over 2000 nm is no more than 0.1 mL/g. Using this regenerated catalyst, a heavy oil containing at least 45 wt ppm vanadium and nickel as combined metal elements is hydrodemetalized, and the vanadium and nickel are recovered from the used regenerated catalyst (SS1). Through hydrorefining, the metal components are recovered more efficiently, and the spent catalyst can be reused to manufacture a regenerated catalyst that exhibits high reaction, activity.

Abstract: The present invention relates to a process for preparing a catalyst for partial oxidation of propylene and iso-butylene, and more particularly to a process for preparing a catalyst for partial oxidation of propylene and iso-butylene that can stably prepare a catalyst that shows high activity for conversion of propylene and iso-butylene to obtain acrolein and methacrolein with a high yield, by dissolving salts of metals acting as a catalyst in a nitric acid aqueous solution or in an organic acid solution to prepare a catalyst suspension, drying the catalyst solution in a microwave oven, and then pulverizing and molding the dried catalyst, and calcining the catalyst.

Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield and used to produce.

Abstract: The invention relates to a method for the oxidative dehydrogenation of ethane. The inventive method is characterized in that it consists of bringing the ethane into contact with the catalyst containing Mo, Te, V, Nb and at least a fifth element A which is selected from Cu, Ta, Sn, Se, W, Ti, Fe, Co, Ni, Cr, Zr, Sb, Bi, an alkali metal, an alkaline-earth metal and a rare earth, in which at least Mo, Te, V and Nb are present in the form of at least one oxide, said catalyst presenting, in calcined form, an X-ray diffractogram with more than ten intense diffraction lines, typically, the most intense lines corresponding to diffraction angles 2? of 7.7°±0.4, 8.9°±0.4, 22.1°+0.4, 26.6°±0.4, 26.9°±0.4, 27.1°±0.4, 28.1°±0.4, 31.2°±0.4, 35.0°±0.4 and 45.06°±0.

Abstract: A high temperature denitration catalyst of a gas turbine single plant contains TiO2, at least one of WO3 and MoO3 and V2O5 of 0.5 wt % or less, preferably 0.2 wt % or less, or none of V2O5, and is optimized to be used in a temperature range up to a maximum 450 to 600° C. The used high temperature denitration catalyst is immersed into a V-containing water solution and dried and/or burned. An intermediate temperature denitration catalyst is produced containing a V2O5 component of 0.5 wt % or more, preferably 1.0 wt % or more, and is optimized for use in a temperature range of 250 to 450° C. This intermediate temperature denitration catalyst is re-used in a combined cycle plant after being modified or in other plants.

Abstract: Processes for preparing a composition comprising (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, and (iii) an oxygen storage component are disclosed. Preferably, the process comprise forming a single slurry of components (i)–(iii), spray drying and calcining to obtain metal oxide particles comprising components (i)–(iii). Preferably, the slurry comprise a base peptized acidic metal oxide containing slurry wherein the component (ii) is provided in the slurry as a metal of the base. Compositions prepared are impregnated with a noble metal to provide compositions useful to reduce gas phase reduced nitrogen species and NOx in an effluent off gas of a fluid catalytic cracking regenerator.

Abstract: A process for preparing a supported catalyst or catalyst precursor containing carbon, said process comprising: a. preparing a liquid mixture of (i) at least one catalyst support or catalyst support precursor; (ii) at least one metal-containing compound, wherein said metal is selected from V, Cr, Mn, Fe, Co, Ni, Cu, Mo and W, and (iii) at least one polar organic compound which acts as a solvent for the metal-containing compound, said liquid mixture comprising 0 to 20 wt % of water based on the total weight of the mixture; b. converting said mixture to a paste or solid residue; and c. combusting the residue in an oxygen-containing atmosphere to at least partially convert the organic compound to carbon and to form said supported catalyst or catalyst precursor.