Union Oil Company of California

Eric L Moorehead

Paul R Robinson

John W Ward

Suheil F Abdo

Sidney Y Shen

Jay A Switzer

Jon D Probst

Donald B Ackelson

The pour point and/or cloud point of the lube fractions comprising a waxy hydrocarbon feedstock containing straight and branched chain paraffins is reduced by contacting the feedstock in a dewaxing zone, preferably in the presence of added hydrogen, with a dewaxing catalyst comprising (1) an intermediate pore crystalline molecular sieve having a pore size between about 5.0 Angstroms and about 7.0 Angstroms and (2) a large pore crystalline molecular sieve having a pore size above about 7.0 Angstroms and typically selected from the group consisting of silicoaluminophosphates, ferrosilicates, aluminophosphates and Y zeolites. A hydrocarbon fraction of reduced paraffin content is recovered from the effluent of the dewaxing zone. Preferred intermediate pore crystalline molecular sieves are silicalite and a ZSM-5 type zeolite. Preferred large pore crystalline molecular sieves are silicoaluminophosphates such as SAPO-5 and ammonium exchanged and steamed Y zeolites.

Process and catalyst for the dewaxing of shale oil

A catalyst containing a non-hydrolyzable halogen component is employed to hydroprocess a hydrocarbon oil.

Hydroprocessing with a catalyst containing non-hydrolyzable halogen

A catalyst containing a non-hydrolyzable halogen component and an amorphous refractory oxide having controlled pore sizes is employed to hydroprocess a hydrocarbon oil.

Hydroprocessing with a specific pore sized catalyst containing

A novel siliceous crystalline composition of matter further comprising one or more metals is prepared by admixing a basic silica salt and a dissolved metal salt in the presence of a quaternary ammonium ion and subsequently heating under pressurized conditions. This novel composition of matter is useful as a catalyst for oxidation, alkylation, disproportionation, synthesis gas conversion, hydrocracking, and hydrodewaxing.

Fischer-Tropsch synthesis process utilizing a catalyst containing a

Siliceous metal-containing crystalline compositions

An oxidation catalyst of large surface area for converting C.sub.4 to C.sub.10 hydrocarbons to maleic anhydride comprises the oxides of vanadium, phosphorus and, optionally and preferably, tin, in combination with a microporous crystalline silica or a crystalline zeolite having a silica-to-alumina ratio of at least 6.0

Oxidation catalyst

Process for producing maleic anhydride utilizing a catalyst containing a

A novel siliceous crystalline composition of matter further comprising one or more metals is prepared by admixing a basic silica salt and a dissolved metal salt in the presence of a quarternary ammonium ion and subsequently heating under pressurized conditions. This novel composition of matter is useful as a catalyst for oxidation, alkylation, disproportionation, synthesis gas conversion, hydrocracking, and hydrodewaxing.

Hydrodewaxing process utilizing a catalyst containing a siliceous

Full-range shale oils or fractions thereof, after hydrotreating, or hydrowaxed and then hydrogenated to produce lubricating oil fractions boiling above 650.degree. F., having a pour point at or below +10.degree. F., and a viscosity index of at least 95. In the preferred operation, the hydrogenation is effected with a noble metal-containing catalyst wherein the noble metal is dispersed by cation exchange into a carrier comprising a silica-alumina cogel or copolymer dispersed in a large pore alumina gel matrix. It has been found with shale oils that the hydrogenation in the preferred embodiment also results in hydrocracking of some of the polynaphthenic compounds. Since polynaphthenic compounds can contribute to or themselves cause low viscosity index in lubricating base oil, the invention is believed particularly applicable to those feedstocks, not necessarily of shale origin, wherein it is desired or necesary to raise the viscosity index by hydrogenation with simultaneous hydrocracking of polynaphtenic compounds .

Process for producing lubrication oil of high viscosity index

Full-range shale oils or fractions thereof, after hydrotreating, are hydrodewaxed and then hydrogenated to produce lubricating oil fractions boiling above 650.degree. F., having a pour point at or below +10.degree. F., and a viscosity index of at least 95.

Process for producing lubrication oil of high viscosity index from shale

A spindle oil is hydrotreated and then hydrodewaxed in the presence of a catalyst containing at least 70 percent by weight of an intermediate pore molecular sieve in the support so as to produce a selected fraction having a low pour point and viscosity comparable to the original spindle oil, said fraction being then suitable as a 'cutter stock' for lowering the pour point of fuel oils.

Hydrocarbon refining process

An oxidation catalyst of large surface area for converting C.sub.4 to C.sub.10 hydrocarbons to maleic anhydride comprises the oxides of vanadium, phosphorus and, optionally and preferably, tin, in combination with a microporous crystalline silica or a crystalline zeolite having a silica-to-alumina ratio of at least 6.0.

Process for making maleic anhydride

Oxidative dehydrogenation catalysts suitable for converting C.sub.4 to C.sub.8 mono-olefins to conjugated dienes comprise vanadium, phosphorus, and alkali metal components, and preferably also a tin component, in combination with a microporous crystalline silica or a crystalline zeolite having a silica-to-alumina ratio of at least 6.0. In one embodiment, the catalyst has a surface area between 30 M.sup.2 /g to 450 M.sup.2 /g and the vanadium has an average valence in the range of from 3.50 to 4.95.

Oxidative-dehydrogenation process

High surface area oxidative dehydrogenation catalysts which are suitable for converting C.sub.4 to C.sub.8 mono-olefins to diolefins are disclosed, comprising the oxides of an alkali metal, vanadium, phosphorus, and preferably tin in combination with a crystalline silica having a surface area between 30 M.sup.2 /g to 450 M.sup.2 /g and wherein the vanadium has an average valence in the range of from 3.5 to 4.95.

Growing community of inventors

Diamond Bar, CA, United States of America

Eric L Moorehead