The invention relates to a V—Ni.sub.2P/g-C.sub.3N.sub.4 photocatalyst, a preparation method, and application thereof. The V—Ni.sub.2P/g-C.sub.3N.sub.4 photocatalyst is a composite material of V—Ni.sub.2P and g-C.sub.3N.sub.4, wherein V—Ni.sub.2P has the spherical structure formed by nanosheets; the mass ratio of the V—Ni.sub.2P and g-C.sub.3N.sub.4 is (0.01 to 0.2):1.

The disclosure describes a process for methanol synthesis remarkable in that it comprises the steps of (a) providing syngas (3), (b) providing at least one first catalytic composition (9) comprising at least one first methanol synthesis catalyst; (c) putting into contact said syngas (3) with said first catalytic composition (9) under first temperature conditions, to provide a first gaseous effluent (15); (d) providing at least one second catalytic composition (17) comprising at least one second methanol synthesis catalyst; (e) putting into contact at least a part of said first gaseous effluent (15) with said second catalytic composition (17), to provide a second gaseous effluent (23) and a second liquid effluent (21); (f) recovering methanol from first (15) and/or second (23) gaseous effluent. The use of a first catalytic composition (9) that comprises at least one first methanol synthesis catalyst in such a process for methanol synthesis is also described.

A catalyst for producing dibasic amine by hydrogenation of dibasic nitrile contains the following components or reaction product thereof: a) an active component, wherein the active component comprises Ni and/or an oxide thereof; b) an auxiliary, wherein the auxiliary comprises one or more of Mg, Cu, Co, Zn, Zr, Mo and/or oxides thereof; C) support, wherein the relative content of α-NiO in the catalyst is less than 2.0 a.u. A process for producing dibasic amine by hydrogenation of dibasic nitrile is also provided.

The present teachings are directed to inorganic oxide materials that include Al.sub.2O.sub.3, CeO.sub.2, and at least one of MgO and Pr.sub.6O.sub.11. The present teachings are also directed to catalysts having at least one noble metal supported on these inorganic oxide materials, as well as methods for treating exhaust gases from internal combustion engines using such catalysts.

The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.

Catalyst for oxygen storage capacity applications that include a zinc doped manganese-iron spinel mixed oxide material. The zinc doped manganese-iron spinel mixed oxide material may be synthesized by a co-precipitation method using a precipitation agent such as sodium carbonate and exhibits a high oxygen storage capacity.

The present invention relates generally to catalysts and methods for use in olefin production. More particularly, the present invention relates to novel amorphously supported single-center, Lewis acid metal ions and use of the same as catalysts.

A method of preparing hydrodesulfurization catalysts having cobalt and molybdenum sulfide deposited on a support material containing mesoporous silica. The method utilizes a sulfur-containing silane that dually functions as a silica source and a sulfur precursor. The method involves an one-pot strategy for hydrothermal treatment and a single-step calcination and sulfidation procedure. The application of the hydrodesulfurization catalysts in treating a hydrocarbon feedstock containing sulfur compounds to produce a desulfurized hydrocarbon stream is also specified.

A method of preparing hydrodesulfurization catalysts having cobalt and molybdenum sulfide deposited on a support material containing mesoporous silica. The method utilizes a sulfur-containing silane that dually functions as a silica source and a sulfur precursor. The method involves an one-pot strategy for hydrothermal treatment and a single-step calcination and sulfidation procedure. The application of the hydrodesulfurization catalysts in treating a hydrocarbon feedstock containing sulfur compounds to produce a desulfurized hydrocarbon stream is also specified.

A method of preparing hydrodesulfurization catalysts having cobalt and molybdenum sulfide deposited on a support material containing mesoporous silica. The method utilizes a sulfur-containing silane that dually functions as a silica source and a sulfur precursor. The method involves an one-pot strategy for hydrothermal treatment and a single-step calcination and sulfidation procedure. The application of the hydrodesulfurization catalysts in treating a hydrocarbon feedstock containing sulfur compounds to produce a desulfurized hydrocarbon stream is also specified.