The present invention relates to a method for the selective hydrogenation of an unsaturated compound, particularly a method in an unsaturated compound or a mixture containing unsaturated compounds for increase of the light sulphides weight, hydrogenation of a polyunsaturated compound and isomerization of a monounsaturated compound. The method uses a supported catalyst. The supported catalyst contains at least one Group VIB non-noble metal oxide and at least one Group VIII non-noble metal oxide deposited on a carrier; and the catalyst has an optimized acid distribution on the surface of the catalyst, and more preferably has an optimized Group VIII/VIB metal ratio and a Group VIII non-noble metal density per unit of catalyst surface area.

A method for making a metal oxide material and catalyzing the oxidative coupling of methane, including mixing a metal cation-containing oxidizer portion and a reducing fuel portion with water to define an aqueous solution, evaporatively removing water from the aqueous solution to yield a concentrated liquid, burning the concentrated liquid yield an homogeneous metal oxide powder, flowing methane from a first source and oxygen from a second source over the homogeneous metal oxide powder, and catalyzing an oxidative coupling of methane reaction with the homogeneous metal oxide powder. The homogeneous metal oxide powder contains metal oxides selected from the group including LaSrAlO.sub.4, LaAlO.sub.3, Sr.sub.3Al.sub.2O.sub.6, Na.sub.2WO.sub.4Mn/SiO.sub.2, and combinations thereof.

A supported catalyst useful in processes for chemically refining hydrocarbon feedstocks is prepared, the catalyst comprising a metal from Group 6 of the Periodic Table, a metal from Groups 8, 9 or 10 and optionally phosphorous, wherein the metals, and phosphorous when present, are carried on a foraminous carrier or support, the carrier or support, preferably comprises porous alumina having a total pore volume (TPV) of about 0.6 cc/g to about 1.1 cc/g and comprising: (a) equal to or greater than about 78% to about 95% of TPV in pores having a diameter of less than about 200 Angstroms (); (b) greater than about 2% to less than about 19% of the TPV in pores having a diameter of about 200 () to less than about 1000 ; (c) equal to or greater than 3% to less than 12% of the TPV in pores having a diameter equal to or greater than about 1000 ; and (d) a pore mode equal to or greater than about 90 and less than about 160 . Preferably the support exhibits a d50 greater than about 100 and less than about 150 .

A supported catalyst useful in processes for chemically refining hydrocarbon feedstocks is prepared, the catalyst comprising a metal from Group 6 of the Periodic Table, a metal from Groups 8, 9 or 10 and optionally phosphorous, wherein the metals, and phosphorous when present, are carried on a foraminous carrier or support, the carrier or support, preferably comprises porous alumina having a total pore volume (TPV) of about 0.6 cc/g to about 1.1 cc/g and comprising: (a) equal to or greater than about 78% to about 95% of TPV in pores having a diameter of less than about 200 Angstroms (); (b) greater than about 2% to less than about 19% of the TPV in pores having a diameter of about 200 () to less than about 1000 ; (c) equal to or greater than 3% to less than 12% of the TPV in pores having a diameter equal to or greater than about 1000 ; and (d) a pore mode equal to or greater than about 90 and less than about 160 . Preferably the support exhibits a d50 greater than about 100 and less than about 150 .

A selective nickel-based hydrogenation catalyst and the preparation thereof, characterized in that: provided that the catalyst is weighed 100%, it comprises nickel oxide 14-20% as active component, lanthanum oxide and/or cerium oxide 2-8%, and VIB element oxide 1-8% as aids, 2-8% silica, 1-8% alkaline earth metal oxides, and alumina as the balance. The catalyst specific surface area is 60-150 m.sup.2/g, and the pore volume is 0.4-0.6 ml/g. The catalyst has good hydrogenation performance, especially impurity and colloid resistance and hydrogenation stability. The catalyst can be applied to the diolefin selective hydrogenation of medium or low-distillate oil, especially of the full-distillates pyrolysis gasoline.

A selective nickel-based hydrogenation catalyst and the preparation thereof, characterized in that: provided that the catalyst is weighed 100%, it comprises nickel oxide 14-20% as active component, lanthanum oxide and/or cerium oxide 2-8%, and VIB element oxide 1-8% as aids, 2-8% silica, 1-8% alkaline earth metal oxides, and alumina as the balance. The catalyst specific surface area is 60-150 m.sup.2/g, and the pore volume is 0.4-0.6 ml/g. The catalyst has good hydrogenation performance, especially impurity and colloid resistance and hydrogenation stability. The catalyst can be applied to the diolefin selective hydrogenation of medium or low-distillate oil, especially of the full-distillates pyrolysis gasoline.

A composition that comprises a support material that is loaded with an active metal or metal precursor, an amine component, and a non-amine containing polar additive. The composition is useful in the hydroprocessing of hydrocarbon feedstocks. The composition is prepared by incorporating a metal solution into a support material followed by incorporating therein an amine component and a non-amine containing polar additive.

A composition that comprises a support material that is loaded with an active metal or metal precursor, an amine component, and a non-amine containing polar additive. The composition is useful in the hydroprocessing of hydrocarbon feedstocks. The composition is prepared by incorporating a metal solution into a support material followed by incorporating therein an amine component and a non-amine containing polar additive.

A process for neutralizing and for controlling acid gas emissions during the neutralization, solidification, or stabilization of acidic waste products in liquids, sludge, or soil, resulting from the acid treatment of petroleum products.

The present invention relates to a hydrocracking catalyst, a process for preparing the same and use thereof The present catalyst comprises a cracking component and a hydrogenation component, wherein the cracking component comprises from 0 to 20 wt. % of a molecular sieve and from 20 wt. % to 60 wt. % of an amorphous silica-alumina, the hydrogenation component comprises at least one hydrogenation metal in a total amount of from 34 wt. % to 75 wt. % calculated by the mass of oxides, each amount is based on the total weight of the catalyst. The present catalyst is prepared by directly mixing an acidic component powder material with an impregnating solution, impregnating, filtering, drying, molding, and drying and calcining.