Abstract: The invention provides an activated carbon supported cobalt based catalyst for directly converting of synthesis gas to mixed linear alpha-alcohols and paraffins, comprising cobalt, an activated carbon carrier, a metal promoter which is at least one selected from the group consisting of a zirconium component, a lanthanum component, a cerium component, a chromium component, a vanadium component, a titanium component, a manganese component, a rhenium component, a potassium component, a ruthenium component, a magnesium component and a mixture thereof, wherein the cobalt and the promoter are deposited on the activated carbon carrier or substantially uniformly dispersed therein, and the metal promoter is present in the form of a metal, an oxide or a combination thereof.

Abstract: The present invention relates to a catalyst system which is a mixture of at least two catalytic species, the first catalytic species being a dehydrogenation catalyst and the second catalytic species being an epoxidation catalyst and comprising silver. The present invention also relates to a process for the production of epoxides, in particular a process for the production of an epoxide from an alkane or a mixture comprising an alkane and an alkene, which process comprises contacting said alkane or mixture comprising said alkane and said alkene and a source of oxygen with such a catalyst system comprising a mixture of at least two catalytic species, the first catalytic species providing dehydrogenation activity and the second catalytic species providing epoxidation activity and comprising silver.

Abstract: A catalyst for purifying exhaust gases includes a substrate, and projections. The substrate is provided with straight-flow gas-flow passages. The projections protrude from the straight-flow gas-flow passages in a height of 50 ?m or more, and include a precipitate, which is composed of at least one catalytic ingredient selected from the group consisting of alkali metals and alkaline-earth metals.

Abstract: A catalyst includes 5-75% wt cobalt supported on an oxidic support consisting of aluminium and 0.01-20% wt lithium, and a process for preparing the catalyst. The catalysts are useful for the Fischer-Tropsch synthesis of hydrocarbons.

Abstract: Disclosed is an electrode catalyst for fuel cells, achieving enhanced utilization efficiency of the catalyst. Also disclosed are an electrode for fuel cells by use of the catalyst and a fuel cell. The electrode catalyst for fuel cells is featured in that a compound having at least one functional group and at least one proton-accepting group in the molecule is adsorbed onto a metal catalyst, and the functional group being partially or wholly constituted of a sulfur element or a nitrogen element as its constituent atoms.

Abstract: Methods for synthesizing dimeric or higher polymeric reaction products of nitrogen aromatics comprise contacting a composition comprising the nitrogen aromatic with a catalyst composition. The catalyst is in particulate form and comprises a first metal substrate having a second reduced metal coated on the substrate.

Abstract: A method and catalysts for producing a hydrogen-rich syngas are disclosed. According to the method a CO-containing gas contacts a water gas shift (WGS) catalyst, in the presence of water, preferably at a temperature of less than about 450° C. to produce a hydrogen-rich syngas. Also disclosed is a water gas shift catalyst formulated from: a) Pt, its oxides or mixtures thereof, b) at least one of Fe and Rh, their oxides and mixtures thereof, and c) at least one member selected from the group consisting of Sc, Y, Ti, Zr, V, Nb, Ta, Mo, Re, Co, Ni, Pd, Ge, Sn, Sb, La, Ce, Pr, Nd, Sm, and Eu, their oxides and mixtures thereof. The WGS catalyst may be supported on a carrier, such as any one member or a combination of alumina, zirconia, titania, ceria, magnesia, lanthania, niobia, yttria and iron oxide. Fuel processors containing such water gas shift catalysts are also disclosed.

Abstract: Especially physically stable metal oxide catalyst supports are prepared by suspending a metal oxide in a continuous phase, activating by fine dispersion, coagulation to a viscoelastic mass, shaping, drying, and calcining. The catalyst support thus prepared may be treated with catalytic agents to produce supported catalysts for olefin oxidation.

Abstract: Process of depositing nanoparticles of a metal or of an alloy of said metal, said metal being chosen from the metals from columns VIIIB and IB of the Periodic Table, dispersed on a substrate by chemical vapour deposition (CVD), from one or more precursors, in which the deposition is carried out in the presence of a gas comprising more than 50 vol % of a reactive oxidizing gas. Substrate comprising at least one surface, dispersed on which are nanoparticles made of a metal or of an alloy of metals, for example made of silver or a silver alloy. Use of the substrate to catalyse a chemical reaction, for example an NOx elimination reaction.

Abstract: The present invention relates to a novel method for preparing a new type of catalyst for the oxidation of CO in a reactant gas or air. The method provides the preparation of a catalyst having nano-sized metal particles and a capping agent deposited on a solid support. The size and distribution of the metal particles can be easily controlled by adjusting reaction condition and the capping agent used. The catalyst prepared has high activity at low temperature toward selective oxidation of CO and is stable over an extended period of time. The catalyst can be used in air filter devices, hydrogen purification processes, automotive emission control devices (decomposition of NOx, x is the integer 1 or 2), F-T synthesis, preparation of fuel-cell electrode, photocatalysis and sensors.

Abstract: A multi-phase catalyst for the simultaneous conversion of oxides of nitrogen, carbon monoxide, and hydrocarbons is provided. A catalyst composition comprising the multi-phase catalyst and methods of making the catalyst composition are also provided. The multi-phase catalyst may be represented by the general formula of CeyLn1-xAx+sMOZ, wherein Ln is a mixture of elements originally in the form of single-phase mixed lanthanides collected from natural ores, a single lanthanide, or a mixture of lanthanides; A is an element selected from a group consisting of Mg, Ca, Sr, Ba, Li, Na, K, Cs, Rb, or any combination thereof; and M is an element selected from the group consisting of Fe, Mn, Cr, Ni, Co, Cu, V, Zr, Pt, Pd, Rh, Ru, Ag, Au, Al, Ga, Mo, W, Ti, or any combination thereof; x is a number defined by 0?x<1.0; y is a number defined by 0?y<10; s is a number defined by 0?s<10; where s=0 only when y>0 and y=0 only when s>0.

Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.

Abstract: Composite combustion catalyst particles are described and disclosed. A metal core of a combustible metal can be coated with a metal oxide coating. Additionally, a catalyst coating can at least partially surround the metal oxide coating to form a composite catalyst particle. The composite catalyst particles can be dispersed in a variety of fuels such as propulsion fuels and the like to form an enhanced fuel. During initial stages of combustion, the catalyst coating acts to increase combustion of the fuel. As combustion proceeds, the metal core heats sufficiently to disturb the metal oxide coating. The metal core then combusts in highly exothermic reactions with an oxidizer and the catalyst coating to provide improved energy densities to the enhanced fuel.

Abstract: A process for regenerating a hydrogenation catalyst which has been used in a gas-phase hydrogenation, which comprises stripping at from 50 to 300° C. with a substance or a substance mixture which under the process conditions has no oxidizing action and is present in the gaseous state is described.

Abstract: The present invention discloses a catalyst, system, and process for oxidizing mercury. The catalyst can include a substrate and a layer attached to at least part of the substrate. The layer contains a noble metal and has an average thickness of less than 100 nanometers. The substrate can be a plurality of glass fibers that provides for a relatively high surface area for the layer to be attached to. In the alternative, the substrate can be a porous substrate that provides for a high surface area for the layer to be attached to.

Abstract: A method of producing a catalyst support comprising a substrate, and coating formed on the surface of the substrate and including powder of a first metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, wherein the coating is obtained by heat treating the substrate after applied with a coating composition obtained by mixing the first metal oxide powder together with a fluid raw material composition containing raw material of a second metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, at a shear rate of 1000 sec?1 or higher.

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

Abstract: The present invention provides a process for producing supported ruthenium oxide comprising a step of supporting a ruthenium compound on a carrier and then calcining it in an oxygen-containing gas atmosphere, wherein the ruthenium compound has a total of each content of sodium, calcium, magnesium, iron, silicon, aluminum, copper and zinc of 500 weight ppm or less based on the amount of ruthenium.

Abstract: The invention provides a catalyst containing active elements including copper deposited on alumina containing at least 0.03 g of titanium, expressed in metal form, per kg of alumina and use thereof in gas hase reactions, such as the oxychlorination of ethylene to 1,2-dichloroethane. This catalyst is suitable for maintaining a constant oxygen content in the tail gases and hence in the recycled gases. The invention further pertains to the use of an alumina containing at least 0.03g titanium, expressed in metal form, per Kg of alumina, as catalyst support and as catalyst diluent. In an example a catalyst containing CuCl2, MgCl2, KCl and LiCl deposited on alumina containing 1.13 g of titanium, expressed in metal form, per Kg of alumina was used for the oxychlorination of ethylene to 1,2-dichloroethane in a fluidized bed reactor.

Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.

Abstract: An object of the present invention is to provide a catalyst which, in the FT process, exhibits a high chain growth probability, and a high catalytic activity, can stably and smoothly promote the reaction, exhibits a high productivity of C5+, and can efficiently produce liquid hydrocarbons, and a process therefore. The invention relates to a hydrocarbon-producing catalyst obtainable by supporting a ruthenium compound on a support composed of a manganese oxide and an aluminum oxide, and which satisfies at least one of characteristics (1) and (2): (1) the catalyst being treated with an aqueous alkaline solution and subsequently subjected to calcination treatment in the air at 150 to 500° C., (2) the aluminum oxide being an aluminum oxide wherein pore volume formed by pores having a pore diameter of 8 nm or more accounts for 50% or more of total pore volume.

Abstract: A method for preparing an exhaust gas catalyst includes preparing a washcoat comprising a catalytically effective amount of at least one catalytically active metal disposed upon an oxide support; disposing the catalytically active metal-oxide support washcoat upon a catalyst substrate; drying the washcoated catalyst substrate using microwave energy to affix the precious metals to the oxide support; and conventionally calcining the dried washcoated catalyst substrate. The catalysts comprising a substrate having dispersed thereon an inorganic oxide washcoat, the washcoat having been affixed to the substrate by microwave drying, exhibit high exhaust gas purifying performance and long durability. The catalysts thus produced further provide a long in-service lifetime for reforming organic fuel species into hydrogen, carbon monoxide and light hydrocarbons used in the nitrogen oxides reduction process.

Abstract: A method of producing catalyst powder of the present invention has a step of precipitating any one of a noble metal particle (5) and a transition metal particle (10) in a reversed micelle (1); a step of precipitating, in the reversed micelle (1) in which any one of the noble metal particle (5) and the transition metal particle (10) is precipitated, a porous support material (7) which supports the noble metal particle (5) and the transition metal particle (10); and a step of precipitating the other of the noble metal particle (5) and the transition metal particle (10) in the reversed micelle (1) in which any one of the noble metal particle (5).

Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.

Abstract: A reagent suitable for use as a catalyst comprises a first metal species substrate having a second reduced metal species coated thereon, the second reduced metal species being less electropositive than the first metal. Methods of manufacture are also provided.

Abstract: A composite single phase crystalline mixed metal oxide NOx scavenger formed of a solid solution, wherein the solid solution has a well defined single phase crystalline structure, as determined by conventional x-ray Diffraction method; and, a NOx scavenger disposed within the single phase oxide structure, without formation of additional X-ray discrete phase, wherein the NOx scavenger is formed from oxides of an element selected from the group consisting of alkali metals, alkaline earth metals, transition metals, rare earth metals and mixtures thereof. The aforementioned single phase oxide may further posses a cubic fluorite structure and said composite cubic oxide NOx scavenger may be advantageously applied to the control of emissions, of both gaseous and solid or particulate nature, from internal combustions especially engines operating under the principle of compression ignition.

Abstract: A honeycomb structure includes at least one honeycomb unit a NOx occluding catalyst and a noble metal catalyst. The at least one honeycomb unit includes inorganic particles and an inorganic binder and has a plurality of cell walls extending from one end face to another end face of the at least one honeycomb unit along a longitudinal direction of the at least one honeycomb unit to define a plurality of cells. The NOx occluding catalyst and the noble metal catalyst are provided at the plurality of cell walls. An amount of the noble metal catalyst provided on a surface of at least one of the plurality of cell walls is greater than an amount of the noble metal catalyst provided in a center part along a thickness of the at least one of the plurality of cell walls.

Abstract: A honeycomb structure includes a plurality of honeycomb fired bodies combined with one another. The honeycomb fired bodies include a center-portion honeycomb fired body located in a center portion in a cross section perpendicular to a longitudinal direction and a peripheral-portion honeycomb fired body located in a peripheral portion in the cross section. The center-portion honeycomb fired body has a substantially rectangular cross-sectional shape and has an area from about 2500 mm2 to about 5000 mm2 in the cross-section. A cross-sectional shape of the peripheral-portion honeycomb fired body is different from the cross-sectional shape of the center-portion honeycomb fired body. A cross-sectional area of the peripheral-portion honeycomb fired body perpendicular to the longitudinal direction is from about 0.9 times to about 1.3 times as large as the cross-sectional area of the center-portion honeycomb fired body.

Abstract: The invention concerns a process for preparing metallic nanoparticles with an anisotropic nature by using two different reducing agents, preferably with different reducing powers, on a source of a metal selected from columns 8, 9 or 10 of the periodic table of the elements.

Abstract: A method of producing catalyst powder of the present invention has a step of precipitating a noble metal particle (2) and a porous carrier (1) in a reversed micelle substantially simultaneously; and a step of precipitating a transition metal particle (3) in the reversed micelle. By this method, it is possible to obtain catalyst powder which restricts an aggregation of the noble metal particles even at a high temperature and is excellent in a catalytic activity.

Abstract: The inventors have discovered catalyst ignition promoters comprising one or more activated metals. The catalyst ignition promoters are easily prepared from a number of metal sources, including spent catalysts, are activated quickly and provide effective catalyst ignition independent of the quality of the metals that comprise the catalytic converter. The one or more activated metals comprising the ignition promoter are prepared by contacting them with one or more chemical treatments. The activated metal components are prepared into suitable articles, referred to as ignition strips, that are placed in contact with one or more oxidative coupling catalysts, typically in the form of gauzes. The ignition promoters reduce the activation energy for catalyst ignition (also referred to “light off”), enabling ignition of catalyst gauzes that are new, used, contaminated, damaged and combinations thereof at a relatively low auto-ignition temperatures.

Abstract: A pillar-shaped honeycomb structure has a plurality of cells longitudinally placed in parallel with one another with a wall portion therebetween, wherein the honeycomb structure mainly includes inorganic fibers which form the honeycomb structure without lamination interfaces.

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 for selective hydrogenation of acetylenes and diolefins, particularly in a raw gas feed stream for front end selective hydrogenation. The catalyst contains a low surface area carrier with a surface area from about 2-20 m2/g, wherein the pore volume of the pores of the carrier is greater than about 0.4 cc/g, at least 90 percent of the pore volume of the pores is contained within pores having a pore diameter greater than about 500 ? and about 1 to about 2 percent of the total pore volume is contained in pores with a pore diameter from about 500 to about 1,000 ?. The palladium comprises about 0.01 to about 0.1 weight % and a Group IB metal comprises about 0.005 to about 0.06 weight % of the catalyst.

Abstract: Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or are impregnated with a material exhibiting soft Lewis acid properties. Methods according to the invention comprise contacting a fluid containing organosulfur contaminants with a mesoporous, nanocrystalline metal oxide. In a preferred embodiment, nanocrystalline metal oxide particles are formed into pellets (14) and placed inside a fuel filter housing (12) for removing organosulfur contaminants from a hydrocarbon fuel stream.

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

Abstract: Catalysts which are prepared by reducing catalyst precursors which comprise a) cobalt and b) one or more elements of the alkali metal group, of the alkaline earth metal group, of the group consisting of the rare earths or zinc or mixtures thereof, the elements a) and b) being present at least partly in the form of their mixed oxides, and a process for the preparation of these catalysts and the use thereof for the hydrogenation of unsaturated organic compounds. Furthermore, a process for regenerating these catalysts by treatment of the catalyst with a liquid is described.

Abstract: A vermiculite supported catalyst for carbon monoxide (CO) preferential oxidation (PROX) is disclosed. The CO PROX catalyst comprises at least one catalytic agent, one optional modifier agent, one carrier material, and a vermiculite support. The process for preparing the vermiculite supported catalyst in this invention includes depositing first the carrier material on a vermiculite support followed by calcination to form the carrier-containing support, and wet impregnating the catalytic agent and the optional modifier agent on the carrier-containing support followed by drying and calcination to form the CO preferential oxidation catalyst.

Abstract: The present invention features a catalytic material which includes a metal catalyst anchored to a nano-sized crystal containing a metal oxide. Furthermore, the present invention features a method of producing the catalytic material described herein. Finally, the present invention features using the catalytic material for removing contaminants and for getting the desired products.

Abstract: A selective hydrogenation process and a layered catalyst composition for use in the selective hydrogenation process are disclosed. The process is useful for the selective hydrogenation of diolefins having from about 8 to about 19 carbon atoms per molecule to monoolefins.

Abstract: For the oxygen reduction reaction at the cathode of proton exchange membrane fuel cells, a metal alloy catalyst contains the metals Pd, M1 and M2 where M1 and M2 are different metals selected from Co, Fe, Au, Cr and W (but excluding the combination PdCoAu). Preferred ternary alloys for use as catalysts may be selected from PdCoCr, PdCoW, PdFeCr, PdFeW, PdCrW, PdWAu, PdCrAu, PdCoFe and PdFeAu. Compositional ranges that are specially effective are assessed by a high throughput physical vapour deposition method. Catalysts especially suitable for use in direct methanol fuel cells are identified.

Abstract: A water gas shift catalyst comprising a precious metal deposited on a support, wherein the support is prepared from a mixture comprising a low surface area material, such as an aluminate, particularly a hexaaluminate, and a high surface area material, such as a mixed metal oxide, particularly a mixture of zirconia and ceria, to which may be added one or more of a high surface area transitional alumina, an alkali or alkaline earth metal dopant and an additional dopant selected from Ga, Nd, Pr, W, Ge, Au, Ag, Fe, oxides thereof and mixtures thereof.

Abstract: A hydrogenation catalyst is used for the catalytic hydrogenation of an ester-containing aldehyde mixture and the catalyst contains a ?-alumina having a BET surface area of from 70 to 350 m2/g as support material, and at least one component having hydrogenation activity and being selected from the group consisting of nickel, cobalt and mixtures thereof.

Abstract: A catalyst for selective hydrogenation of acetylenes and diolefins, particularly in a raw gas feed stream for front end selective hydrogenation. The catalyst contains a low surface area carrier with a surface area from about 2-20 m2/g, wherein the pore volume of the pores of the carrier is greater than about 0.4 cc/g, wherein at least 90 percent of the pore volume of the pores is contained within pores having a pore diameter greater than about 500 ? and wherein from about 1 to about 2 percent of the total pore volume is contained in pores with a pore diameter from about 500 to about 1,000 ?, palladium, wherein the palladium comprises from about 0.01 to about 0.1 weight percent of the catalyst, and a Group IB metal, wherein the Group IB metal comprises from about 0.005 to about 0.06 weight percent of the catalyst.

Abstract: The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides and at least one metal compound which is dropped into a metal salt solution.

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 a combination comprising a palladium component, an antimony component and/or a bismuth component, and one or more Group 4, 5, 6 or 14 metal or metalloid components. 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: A method for applying a mixed metal oxide catalyst to a metallic substrate for the creation of a robust, high temperature catalyst system for use in decomposing propellants, particularly hydrogen peroxide propellants, for use in propulsion systems. The method begins by forming a prepared substrate material consisting of a metallic inner substrate and a bound layer of a noble metal intermediate. Alternatively, a bound ceramic coating, or frit, may be introduced between the metallic inner substrate and noble metal intermediate when the metallic substrate is oxidation resistant. A high-activity catalyst slurry is applied to the surface of the prepared substrate and dried to remove the organic solvent. The catalyst layer is then heat treated to bind the catalyst layer to the surface. The bound catalyst layer is then activated using an activation treatment and calcinations to form the high-activity catalyst system.

Abstract: A catalyst for purifying exhaust gases includes a carrier substrate and a catalyst layer which is carried on the carrier substrate and contains a noble metal, a porous oxide and an addition oxide containing at least one selected from the group consisting of Ni, Bi, Sn, Fe, Co, Cu and Zn. Only a downstream section of the carrier substrate, which is located on a downstream side of an exhaust gas stream contains the addition oxide, whereas an upstream section of the carrier substrate does not contain the addition oxide. With this arrangement, in the upstream section of the carrier substrate, the noble metal and the addition oxide do not exist together so that the noble metal is not deteriorated with the addition oxide. As a result, in the upstream section, the purification performance as a three-way catalyst is favorably achieved, thereby restraining the emission of H2S while maintaining the three-way performance.

Abstract: The present invention provides a catalytic system comprising a catalyst comprising nanoporous or mesoporous palladium and an ion-exchange electrolyte, processes for manufacturing the catalytic system and catalyst, and processes for oxidising or reducing organic and/or inorganic molecules using the catalyst or catalytic system.

Abstract: A dehydrogenation catalyst is described comprising an iron oxide, an alkali metal or compound thereof, and silver or a compound thereof. Further a process is described for preparing a dehydrogenation catalyst that comprises preparing a mixture of iron oxide, an alkali metal or compound thereof, and silver or a compound thereof and calcining the mixture. A process for dehydrogenating a dehydrogenatable hydrocarbon and a process for polymerizing the dehydrogenated hydrocarbon are also described.