An exhaust gas-purifying catalyst includes a support and a catalytic metal as one or more precious metals supported by the support. The support includes a composite oxide having a composition represented by a general formula AB.sub.C.sub.O.sub.3, wherein A represents one or more elements selected from the group consisting of lanthanum, neodymium, and yttrium, B represents iron or a combination of iron and aluminum, C represents one or more elements selected from the group consisting of iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, and each represents a numerical value within a range of more than 0 and less than 1, and and satisfy relational formulae of > and +1.

A method of preparing 4-methyl-3-decen-5-one. The method includes the step of oxidizing 4-methyl-3-decen-5-ol in the presence of (i) oxygen and (ii) a metal catalyst, wherein the metal catalyst contains a catalytic metal deposited on nanoparticle support.

An exhaust gas-purifying catalyst includes a support and a catalytic metal as one or more precious metals supported by the support. The support includes a composite oxide having a composition represented by a general formula AB.sub.C.sub.O.sub.3, wherein A represents one or more elements selected from the group consisting of lanthanum, neodymium, and yttrium, B represents iron or a combination of iron and aluminum, C represents one or more elements selected from the group consisting of iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, and each represents a numerical value within a range of more than 0 and less than 1, and and satisfy relational formulae of > and +1.

The invention relates to a four-component catalyst and a seven-component catalyst and refractory supports for use in the thermoneutral reforming of petroleum-based liquid hydrocarbon fuels.

The present invention relates to high efficient tubular catalytic steam reforming reactor configured from about 0.2 inch to about 2 inch inside diameter high temperature metal alloy tube or pipe and loaded with a plurality of rolled catalyst inserts comprising metallic monoliths. The catalyst insert substrate is formed from a single metal foil without a central supporting structure in the form of a spiral monolith. The single metal foil is treated to have 3-dimensional surface features that provide mechanical support and establish open gas channels between each of the rolled layers. This unique geometry accelerates gas mixing and heat transfer and provides a high catalytic active surface area. The small diameter, high aspect ratio tubular catalytic steam reforming reactors loaded with rolled catalyst inserts can be arranged in a multi-pass non-vertical parallel configuration thermally coupled with a heat source to carry out steam reforming of hydrocarbon-containing feeds. The rolled catalyst inserts are self-supported on the reactor wall and enable efficient heat transfer from the reactor wall to the reactor interior, and lower pressure drop than known particulate catalysts. The heat source can be oxygen transport membrane reactors.

A process to make a Fischer-Tropsch catalyst with improved hydrothermal stability, comprising: a. contacting a crystalline oxide material with a solution of a tungsten and a phosphorus to make a tungsten-phosphorus modified support; b. calcining the tungsten-phosphorus modified support at a temperature less than or equal to 750 C. to make a calcined tungsten-phosphorus modified support that has the improved hydrothermal stability and that can be used to support a Co-loaded Fischer-Tropsch catalyst. A Co-loaded Fischer-Tropsch catalyst having improved hydrothermal stability and higher C5+ hydrocarbon productivity is also provided. A Fischer-Tropsch synthesis process is provided, comprising contacting a gaseous mixture comprising a carbon monoxide and a hydrogen with the Co-loaded Fischer-Tropsch catalyst having the improved hydrothermal stability and higher C5+ productivity, at a pressure of from 0.1 to 3 MPa and at a reaction temperature of from 180 to 260 C., thereby producing a product comprising C5+ hydrocarbons.

A method of preparing 4-methyl-3-decen-5-one. The method includes the step of oxidizing 4-methyl-3-decen-5-ol in the presence of (i) oxygen and (ii) a metal catalyst, wherein the metal catalyst contains a catalytic metal deposited on nanoparticle support.

A process for the steam reforming of hydrocarbons comprises partially oxidising a feedgas comprising a hydrocarbon feedstock with an oxygen-containing gas in the presence of steam to form a partially oxidised hydrocarbon gas mixture at a temperature >1200 C. and passing the resultant partially oxidised hydrocarbon gas mixture through a bed of steam reforming catalyst, wherein the bed comprises a first layer and a second layer, each layer comprising a catalytically active metal on an oxidic support wherein the oxidic support for the first layer is a zirconia.

The present invention relates to a specific process for the reforming of ammonia, wherein the process comprises (i) providing a reactor containing a catalyst comprising a metal M1 selected from the group consisting of Ni, Co, or Ni and Co; (ii) preparing a feed gas stream comprising NH.sub.3; (iii) feeding the feed gas stream prepared in (ii) into the reactor provided in (i) and contacting the feed gas stream with the catalyst, wherein contacting is performed at a pressure of 1 to 50 bara, and at a temperature of 400 to 1,100 C.; (iv) removing an effluent gas stream from the reactor, the effluent gas stream comprising H.sub.2 and N.sub.2.

A reforming catalyst with improved surface area is provided by using high surface area alumina doped with a stabilizer metal as a catalyst support. The surface area of the catalyst can be higher than a typical reforming catalyst, and the surface area can also be maintained under high temperature operation. This can allow use of the catalyst for reforming in a higher temperature environment while maintaining a higher surface area, which can allow for improved dispersion and/or activity of an active metal such as rhodium on the catalyst support. The catalyst can be suitable for production of syngas from natural gas or other hydrocarbon-containing feeds.