Abstract: Disclosed is a hydrocracking process wherein the feedstock is contacted in a first reaction zone with a first reaction zone catalyst comprising a nickel component and a tungsten component deposed on a support component consisting essentially of an alumina component and a crystalline molecular sieve component. The effluent from the first reaction zone effluent is then contacted in a second reaction zone with a second reaction zone catalyst comprising a cobalt component and a molybdenum component deposed on a support component comprising an alumina component and a crystalline molecular sieve component.

Abstract: Disclosed is a multiple stage process wherein a hydrocarbon feedstock is hydrotreated in a hydrotreating stage. After removal of ammonia and hydrogen sulfide from the hydrotreated feedstock, the hydrotreated feedstock is hydrocracked in a three zone hydrocracking stage.

Abstract: The present invention relates to a process for producing aromatic compounds from a hydrocarbon gas containing C.sub.3 through C.sub.5 paraffinic hydrocarbons under conversion conditions in the presence of a catalyst comprising a borosilicate molecular sieve, a platinum metal component and a gallium metal component.

Abstract: The present invention relates to a process for producing aromatic compounds from a hydrocarbon gas containing paraffinic hydrocarbons under conversion conditions in the presence of a catalyst comprising a gallosilicate molecular sieve and a platinum metal component.

Abstract: The present invention relates to a process for producing aromatic compounds from hydrocarbon gas containing paraffinic hydrocarbons under conversion conditions in the presence of a catalyst comprising a gallosilicate molecular sieve, a Group VIII metal component, and a Group IB metal component.

Abstract: A two-stage hydrocarbon process is disclosed wherein a hydrocarbon feedstock is first hydrotreated followed by a hydrocracking step wherein a portion of the hydrotreated feedstock is hydrocracked in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 25 to 60 wt. % based on the weight of the support component with the balance being alumina.

Abstract: The present invention relates to a hydrocracking process that utilizes a catalyst that contains a combination of two ultrastable zeolite Y components providing improved naphtha yield and catalyst activity.

Abstract: Hydrotreating catalyst composition comprising a hydrogenating component consisting essentially of a metal component in which the metal is selected from Group VIB and a phosphorus component, deposed on the surface of a support comprising a porous refractory inorganic oxide and free of zeolite component exhibits excellent hydrotreating activity and lifetime, particularly in the hydrodenitrogenation of high nitrogen feeds, e.g., whole shale oils or fractions thereof, and in the hydrodesulfurization and hydrodemetallation of high sulfur feeds, e.g., vacuum or atmospheric residual.

Abstract: Disclosed is a hydrocracking process wherein the feedstock is contacted in a first reaction zone with a first reaction zone catalyst comprising a nickel component and a tungsten component deposed on a support component consisting essentially of an alumina component and a crystalline molecular sieve component. The effluent from the first reaction zone effluent is then contacted in a second reaction zone with a second reaction zone catalyst comprising a molybdenum component deposed on a support component comprising an alumina component and a crystalline molecular sieve component.

Abstract: Sulfur oxides are removed from a gas by an absorbent which comprises an inorganic oxide composition in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium, wherein said inorganic oxide composition is selected from the group consisting of MgAl.sub.2 O.sub.4, mixtures of alumina with magnesium oxide and mixtures of magnesium oxide with MgAl.sub.2 O.sub.4. The absorbent can be circulated through a fluidized catalytic cracking process together with hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.

Abstract: Disclosed is a hydrocracking process employing a plurality of reaction zones wherein at least one reaction zone contains a small nominal size hydrocracking catalyst (10 to 16 U.S. Sieve mesh size) and wherein the catalyst situated upstream of the small nominal size hydrocracking has a particle size greater than the small nominal size hydrocracking catalyst.

Abstract: The present invention relates to a process for immediately and intimately mixing a fluidizable cracking catalyst with a fluid hydrocarbon in a riser reactor. The process involves passing the hydrocarbon through a stationary fluid feedstock feed means in fixed relationship with the upstream end of the riser. The feedstock is atomized by a nozzle attached to the downstream end of the feed means. A hollow plug valve positioned concentrically around the feed means is capable of moving in a reciprocating fashion to permit the flow of catalyst to the riser.

Abstract: A hydrocarbon conversion process is disclosed involving the hydrocracking of a catalytic cycle oil in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 25 to 60 wt. % based on the weight of the support component with the balance being alumina.

Abstract: A hydrocarbon conversion process is disclosed involving the hydrocracking of a catalytic cycle oil in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 10 to 40 wt. % based on the weight of the support component with the balance of the support component being alumina.

Abstract: The process of the invention relates to the production of dehazed white oil possessing long-term low temperature storage stability. The white oil is dehazed with a dehazing catalyst comprising a Group VIII metal incorporated with a shape-selective molecular sieve selected from the Group consisting of a ZSM-5 type zeolite and a crystalline borosilicate molecular sieve.

Abstract: The present invention relates to a process for immediately and intimately mixing a fluidizable cracking catalyst with a fluid hydrocarbon in a riser reactor. The process involves passing the hydrocarbon through a hollow plug valve engageable with the upstream end of a riser reactor. The hydrocarbon is atomized by a nozzle attached to the downstream end of the hollow plug valve. The plug valve is capable of moving in a reciprocating fashion to permit the flow of catalyst to the riser.

Abstract: The present invention relates to a process for producing aromatic compounds from a hydrocarbon gas containing paraffinic hydrocarbons under conversion conditions in the presence of a catalyst comprising a gallosilicate molecular sieve and a platinum metal component.

Abstract: The present invention relates to a process for producing aromatic compounds from hydrocarbon gas containing paraffinic hydrocarbons under conversion conditions in the presence of a catalyst comprising a gallosilicate molecular sieve, a Group VIII metal component, and a Group IB metal component.

Abstract: Disclosed is a hydrocracking process wherein the feedstock is first contacted with a first catalyst containing a nickel component and a tungsten component supported on a support containing alumina and a crystalline molecular sieve followed by subsequent contact with a second hydrocracking catalyst containing a cobalt component and a molybdenum component supported on a support containing silica-alumina and a crystalline molecular sieve and the first catalyst. This subsequent contact with the second and first catalysts is carried out either serially or in one step wherein the first and second catalysts are physically mixed.

Abstract: Disclosed is a hydrocracking process wherein the feedstock is contacted in a first reaction zone with a first reaction zone catalyst comprising a nickel component and a molybdenum component deposed on a support consisting essentially of a refractory inorganic oxide. The effluent from the first reaction zone is then contacted in a second reaction zone with a second reaction zone catalyst comprising a nickel component and a tungsten component deposed on a support component consisting essentially of an alumina component and a crystalline molecular sieve component. The effluent from the second reaction zone effluent is then contacted in a third reaction zone with a third reaction zone catalyst comprising a cobalt component and a molybdenum component deposed on a support component comprising a silica-alumina component and a crystalline molecular sieve component.