The present invention relates to a catalyst composition and a process for preparing thereof, wherein the catalyst composition is specifically active for hydro-conversion of LCO involving mainly the partial ring opening of multi-ring aromatics leading to the production of petrochemical feedstock. The catalyst composition comprises of a carrier comprising ultra-stable Y zeolite and binder alumina, group VIB and VIIIB metal species, and organic additives. The carrier is impregnated with metal solution to form active sites of WS.sub.2 slabs of dimensions in the range of 35-45 .

Photocatalysts and methods of using the same for producing hydrogen and oxygen from water are disclosed. The photocatalysts include photoactive titanium dioxide loaded with 0.5 wt. % to 4 wt. % of a hole-scavenging material comprising cobalt oxide and 0.1 wt. % to 1 wt. % of palladium (Pd) and/or a PdCo alloy.

A metal oxide catalyst capable of catalyzing an oxidative coupling of methane reaction is described. The metal oxide catalyst includes a lanthanum (La) cerium (Ce) metal oxide and further including a lanthanum hydroxide (La(OH).sub.3) crystalline phase. The catalyst is capable of catalyzing the production of C.sub.2+ hydrocarbons from methane and oxygen. Methods and systems of using the metal oxide catalyst to produce C.sub.2+ hydrocarbons from a reactant gas are also described.

The invention relates to a catalyst for a process for removing mercaptans and optionally disulfides (if present) from hydrocarbon streams, in particular C4 streams, in the presence of higher dienes, in particular C5 dienes. At the same time, the invention also relates to a process for removing mercaptans and disulfides (if present) from hydrocarbon streams, in particular C4 streams, in one embodiment in the presence of 1-butene, by thioetherification of the mercaptans with polyunsaturated hydrocarbons, wherein the process is carried out in a reactor with addition of hydrogen in the presence of higher dienes, in particular C.sub.5 dienes.

An acid-resistant alloy catalyst, comprising nickel, one or more rare earth element, tin, aluminum and molybdenum. The catalyst is cheap and stable, does not need a carrier, can be stably applied in industrial continuous production, and can lower the production cost.

Provided herein are screening methods to select catalysts having a desired set of target properties from a reference catalyst, and catalysts so obtained, as well as related catalysts material, composition, methods and systems.

A supported core-shell bimetallic catalyst with high selectivity for propane dehydrogenation, containing platinum (Pt) as active species, 3d transition metals (Fe, Co and Ni) as promoters and SBA-15 as support. The addition of 3d metals and the formation of Pt3d alloys in subsurface result in a core-shell bimetallic catalyst which promotes the propene selectivity by decreasing the d-band center of surface Pt atoms and facilitating the desorption of propene on Pt. In another aspect, the reduced usage of Pt is achieved with the addition of 3d transition metals as well as the increased utilization of Pt atoms. The catalyst can be effectively used as a catalyst for the preparation of propene by propane dehydrogenation and 85% of propene selectivity can be achieved in propane dehydrogenation.

A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound, and at least one type of metallic nanoparticles present in the skeletal body, the skeletal body having channels connecting with each other, the metallic nanoparticles being present at least in the channels of the skeletal body.

There is provided a catalyst with low-temperature activity, high selectivity, high poisoning resistance and high durability, as well as a method for producing it. A cluster-supporting catalyst having a silicon carbide carrier and precious metal clusters supported on the silicon carbide carrier, and a method for producing the cluster-supporting catalyst that includes sputtering with a precious metal target to generate precious metal clusters, and impacting the generated precious metal clusters on the surface of the silicon carbide carrier to support them on it.

Methods for making porous materials having metal alloy nanoparticles formed therein are described herein. By preparing a porous material and delivering the precursor solutions under vacuum, the metal precursors can be uniformly embedded within the pores of the porous material. Once absorption is complete, the porous material can be heated in the presence of one or more functional gases to reduce the metal precursors to metal alloy nanoparticles, and embed the metal alloy nanoparticles inside of the pores. As such, the metal alloy nanoparticles can be formed within the pores, while avoiding surface wetting and absorption problems which can occur with small pores.