Differing from the startup temperature of partial oxidation of butane (POB) reaction stimulated by conventional rhodium-based or nickel-based catalyst reaches 700° C. or above, the present invention particularly discloses a novel catalyst consisting of fluorite-type oxide support and Ni active metal for being applied in hydrogen production by low temperature partial oxidation of light hydrocarbon (POLH), so as to effectively reduce the startup temperature of the POLH reaction. In the present invention, the said light hydrocarbon means methane, ethane, propane, or butane. Moreover, a variety of experimental data have proved that this novel catalyst makes the startup temperature of POB reactions be lowered to 250° C. On the other hand, the experimental data have also proved that, the carbon deposition formed on the catalyst during POB reaction can be obviously improved after adding a few amount of platinum into the constituting ingredients of the novel catalyst.

The present specification relates to a carrier-nanoparticle complex, a method for preparing the same, and a catalyst comprising the same.

A structured monolithic catalyst has a structured monolithic carrier and a coating of active components. The coating of active components comprises active metal components and a substrate. The active metal components conclude a first metal element, a second metal element, a third metal element and a fourth metal element. The first metal element includes Fe and Co; the second metal element is at least one selected from the group consisting of the metal elements of the Group IA and/or IIA; the third metal element is at least one selected from the group consisting of the non-noble metal elements of the Groups IB to VIIB; and the fourth metal element is at least one selected from the group consisting of the noble metal elements.

Nanoporous oxygen reduction catalyst material comprising PtNiIr, the catalyst material preferably having the formula Pt.sub.xNi.sub.yIr.sub.z, wherein x is in a range from 26.6 to 47.8, y is in a range from 48.7 to 70, and z is in a range from 1 to 11.4. The nanoporous oxygen reduction catalyst material is useful, for example, in fuel cell membrane electrode assemblies.

A process for the production of organic chemicals and fuels from lignin in the presence of a molybdenum or tungsten based catalyst, comprising mixing the lignin with the catalyst and a solvent in a sealed reactor, introducing an inert gas or hydrogen to the reactor to replace oxygen therein, and heating the sealed reactor to perform a depolymerization reaction at a reaction temperature of above 200° C. to obtain liquid products, which include aromatic compounds, esters, alcohols, monophenols and benzyl alcohols.

The present invention relates to a process for preparing acrolein from propylene by catalytic gas phase oxidation with molecular oxygen (for example air). The invention further relates to the use of particular propylene-containing starting materials, for example refinery grade propylene, for preparation of acrolein.

Materials and methods for converting brown grease to useful diesel fuel are described. One material is a palladium catalyst on a silicon/carbon support. A method comprises flowing fresh hydrogen over a reaction of diluted brown grease on a palladium/carbon catalyst.

A photocatalyst injection system including: a reactor primary system coolant collection section collecting a reactor primary system coolant containing a noble metal or noble metal ion from a reactor primary system; a photocatalyst addition section adding a photocatalyst to the collected reactor primary system coolant; an ultraviolet irradiation section irradiating, with ultraviolet rays, the coolant to which the photocatalyst has been added for producing, in the coolant, a noble metal-carrying photocatalyst in which the noble metal is carried on a surface of the photocatalyst; and a noble metal-carrying photocatalyst injection section injecting the coolant containing the noble metal-carrying photocatalyst into the reactor primary system.

Catalyst compositions, articles, systems and methods related to a three-way-catalyst composition comprising alumina doped with a transition metal.

A system for decomposing contaminants, including volatile compounds (VOCs), with a visible-spectrum photocatalytic composition.