Abstract: Naphthenic solvents and low aromatics mineral spirits are produced simultaneously by blending a hydrocarbon oil boiling in the range between about 100.degree. F. and about 600.degree. F. with an aromatics fraction having an initial boiling point similar to that of the oil to produce a blend containing in excess of about 10 weight percent aromatics, hydrogenating the blend in the presence of a hydrogenation catalyst until aromatics present in the blend have been converted into lower boiling naphthenic compounds, and thereafter fractionating the hydrogenated material to produce a highly naphthenic overhead fraction useful as a solvent and a low aromatics bottom fraction useful as mineral spirits.

Abstract: Hydroprocessing a high boiling hydrocarbon feed, such as coker gas oil, containing an aromatic carbon content of at least 35%, thereby reducing the aromatic carbon content level to less than 35% but not less than about 20%, prior to inclusion of this FCC feed component with the remainder of the FCC feed or cracking it alone with a crystalline zeolite aluminosilicate in a catalytic cracking zone.

Abstract: Liquid hydrocarbon feedstocks are hydrotreated in a reactor containing a first catalyst bed and a second catalyst bed by passing the hydrocarbon liquid down through both catalyst beds serially and introducing hydrogen between the two catalyst beds, the hydrogen flowing upwardly through the first catalyst bed and downwardly through the second catalyst bed. The process is useful for desulfurization and aromatic saturation of petroleum and coal-derived liquids.

Abstract: A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt.% platinum group metal, about 0.5 to about 5 wt.% cobalt, about 0.01 to about 5 wt.% tin and about 0.1 to about 3.5 wt.% halogen, wherein the platinum group metal, cobalt and tin are uniformly dispersed throughout the porous carrier material, wherein substantially all of the platinum group metal is present in the elemental metallic state, wherein substantially all of the tin is present in an oxidation state about that of the elemental metal, and wherein substantially all of the cobalt is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon conversion conditions, in which process there is effected a chemical consumption of hydrogen.

Abstract: A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite comprising a combination of a nickel component and a tungsten component with a silica-alumina carrier material wherein said carrier material is co-gelled silica-alumina consisting of from about 43 percent to about 57 percent by weight of alumina and from about 57 percent to 43 percent by weight silica and wherein said components are present in amounts sufficient to result in the composite containing, on an elemental basis, about 2 to about 10 percent by weight of the nickel component and about 8 to about 20 percent by weight of the tungsten component, in which process there is effected a chemical consumption of hydrogen. Key features of the subject composite are the criticality of the alumina content of the carrier material and the facility of using a co-gelled silica-alumina carrier material. The principal utility of the subject composite is in the hydrocracking of hydrocarbons.

Abstract: A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite of a porous carrier material, a platinum or palladium component, a rhodium component and a tin component, in which process there is effected a chemical consumption of hydrogen. A specific example of one such catalyst is a composite of a crystalline aluminosilicate, a platinum component, a rhodium component and a tin component, for utilization in a hydrocracking process. Other hydrocarbon hydroprocesses are directed toward the hydrogenation of aromatic nuclei, the ring-opening of cyclic hydrocarbons, desulfurization, denitrification, hydrogenation, etc.

Abstract: Lubricating oils are prepared by a sequence of steps comprising hydrorefining, fractionation and blending.

Abstract: Foots oil, the by-product left when high quality wax is recovered by a solvent dewaxing process, is usually used as cracker feed stock. There is disclosed a method of converting it to higher quality lubricant base stock by subjecting such to catalytic hydroprocessing utilizing a ZSM-5 or similarly behaving zeolite catalyst under hydrogen pressure followed by distillation of the product to remove light products such as naphtha, LPG and No. 2 fuel oil therefrom.

Abstract: A process for converting mixtures of C.sub.6 to C.sub.30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600.degree. to 750.degree.F. in the presence of a Group VIII metal on alumina catalyst, and from about 10 to 5,000 parts per million of nitrogen present as ammonia or an organonitrogen compound. The catalyst can additionally contain a Group VIB or VIIB metal.

Abstract: A naphtha is treated by heating in the presence of water, hydrogenating, and extracting desired aromatic components.

Abstract: A heat soaked polymer by-product from the production of gasoline using the 90.degree.-400.degree.F. steam cracker naphtha as feed is upgraded by first subjecting the same to a thermal polymerization and then subjecting the thermal polymerization product to a hydrotreating or hydrogenation step or both. Generally, the hydrotreatment is accomplished at relatively mild conditions so as to avoid any change in aromatic ring structure. Hydrogenation, on the other hand, is accomplished at more severe conditions so as to effect hydrogenation of the aromatic rings. In those cases where a mild hydrotreatment only is used, the products obtained are, generally, useful as aromatic oils of light color. Where more severe hydrogenation is used, on the other hand, the products are useful as naphthenic oils.