A method of producing at least one compound comprising an alkenyl group from at least one compound comprising an alkyl group having two or more carbon atoms, the method comprising: (i) Providing a mixture comprising carbon dioxide and at least one compound comprising an alkyl group having two or more carbon atoms; and (ii) Contacting said mixture with a catalyst comprising one or both of palladium and platinum and one or more lanthanide, thereby converting at least a portion of the at least one compound comprising an alkyl group having two or more carbon atoms into a compound comprising an alkenyl group, the total of the weight of the palladium and/or platinum being more than 0.1 wt % of the catalyst.

The provided is a method for preparing a platinum-tin-metal-alumina catalyst by comprising: as an active ingredient, platinum which has a high activity in a direct dehydrogenation reaction of n-butane, tin which can increase the catalyst stability by preventing carbon deposition; additionally metal for reducing the level of catalyst inactivation over the reaction time; and an alumina carrier for supporting said components. Further, provided is a method for producing a high value product, C4 olefins from low cost n-butane by using the catalyst prepared by the method according to the present invention in a direct dehydrogenation reaction.

The present invention relates to a dehydrogenation process starting from reagents selected from single butenes, or mixtures thereof, or mixtures of butenes with butanes, to give 1-3 butadiene using catalytic composition of microspheroidal alumina and an active component containing a mixture comprising Gallium and/or Gallium oxides, Tin and/or Tin oxides, a quantity ranging from 1 ppm to 500 ppm with respect to the total weight of the catalytic composition of platinum and/or platinum oxides, and oxides of alkaline and/or alkaline earth metals.

A hydrogenation catalysts and methods of using them in hydrogenation is disclosed. More particularly, the present invention relates to hydrogenation catalysts useful for selectively hydrogenating acetylene and methylacetylene, especially in front-end streams, and methods of making and using them.

A hydrocarbon reforming catalyst for forming a synthetic gas containing hydrogen and carbon monoxide from a hydrocarbon-based gas, the hydrocarbon reforming catalyst containing a complex oxide having a perovskite structure, the complex oxide having at least a first crystal phase containing BaCeO.sub.3 as a primary component and also containing Ru.

Disclosed is a dehydrogenation catalyst for converting the C4 LPG, isobutane, and the C3 LPG, propane, into isobutene and propene at high yield via direct dehydrogenation, and a method for preparing the same. The present invention provides a dehydrogenation catalyst for converting a paraffin-based hydrocarbon having a carbon number of 3 or 4 into an olefin-based hydrocarbon via direct dehydrogenation, the dehydrogenation catalyst including a metal alloy (ZnOAl.sub.2O.sub.3) carrier composed of alumina (Al.sub.2O.sub.3) and zinc oxide (ZnO), and an active metal and an auxiliary active metal which are carried by the metal alloy carrier.

An alkane dehydrogenation catalyst including a support; and on the support. an active layer including gallium oxide, aluminum oxide, cerium oxide, a Group 1 metal oxide, and a Group 8-11 metal oxide. The catalyst composition of the examples comprises oxides of gallium, cerium, potassium, platinum and aluminium.

Disclosed are a complex oxide catalyst for dehydrogenation, a method of preparing the same, and use thereof, wherein the catalyst includes a first transition metal selected from the group consisting of gallium, vanadium, chromium, manganese, molybdenum, and zinc, a hydrogen-activating metal including at least one selected from the group consisting of Groups 8, 9, 10, and 11 elements in a periodic table, and alumina, the amount of the first transition metal being 0.1 wt % to 20 wt %, the amount of the hydrogen-activating metal being 0.01 wt % to 2 wt %, based on the amount of the alumina, the first transition metal being loaded on the alumina, and the hydrogen-activating metal being surrounded by the alumina.

A method of hydrogenation utilizing a reactant gas mixture comprising a carbon oxide and a hydrogen agent, and a hydrogenation catalyst comprising a mixed-metal oxide containing metal sites supported and/or incorporated into the lattice. The mixed-metal oxide comprises a pyrochlore, a brownmillerite, or mixtures thereof doped at the A-site or the B-site. The metal site may comprise a deposited metal, where the deposited metal is a transition metal, an alkali metal, an alkaline earth metal, or mixtures thereof. Contact between the carbon oxide, hydrogen agent, and hydrogenation catalyst under appropriate conditions of temperature, pressure and gas flow rate generate a hydrogenation reaction and produce a hydrogenated product made up of carbon from the carbon oxide and some portion of the hydrogen agent. The carbon oxide may be CO, CO.sub.2, or mixtures thereof and the hydrogen agent may be H.sub.2. In a particular embodiment, the hydrogenated product comprises olefins, paraffins, or mixtures thereof.

The present invention relates to a catalytically active material, the preparation thereof, and the use of the catalytically active material, e.g. in the catalytic oxidation of CO to CO.sub.2 or in the catalytic hydrogenation of alkyne. The catalytically active material comprises a support5 comprising a metal oxide, and atomically dispersed noble metal on the surface of the support, wherein the metal oxide is selected from TiO.sub.2, CeO.sub.2, ZnO, SnO.sub.2, Ga.sub.2O.sub.3, In.sub.2O.sub.3, ZrO.sub.2, and Fe.sub.2O.sub.3, the noble metal is selected from Pt, Pd, Rh, and Au, and the catalytically active material is obtainable by a method comprising a step of non-thermal plasma treatment in the presence of O.sub.2.