Abstract: A single stage catalyst system and process for using same in a single stage operation for hydrodewaxing and hydrotreating petroleum residua is disclosed. The catalyst comprises a ZSM-5 type zeolite in an alumina binder having specified metals content and pore volume characteristics.

Abstract: The pour point of a hydrocarbon charge stock boiling in the range of 400.degree. F. to 1050.degree. F., and particularly a lubricating oil charge stock boiling between 600.degree. F. and 1050.degree. F. is reduced by catalytically dewaxing the charge stock in the presence of a zeolite catalyst and subsequently subjecting at least the liquid portion thereof to hydrotreating in the presence of a hydrotreating catalyst comprising a hydrogenating component and a siliceous porous crystalline material from the class of ZSM-5, ZSM-11, ZSM-23 and ZSM-35 zeolites.

Abstract: A method for enhancing both the pour point and viscosity index (V.I.) of crude oils of high wax content by contact of the same with two different zeolites, such as ZSM-5 and ZSM-35 is disclosed.

Abstract: A new CoMo/alumina catalyst of improved stability and activity for demetalation/desulfurization of residual oil fractions having about 40 to 75% of its pore volume in 150-200 A diameter pores and up to about 5% of its pore volume in 500 A+ diameter pores.

Abstract: A method for enhancing both the pour point and viscosity index (V.I.) of crude oils of high wax content by contact of the same with two different zeolites, such as ZSM-5 and ZSM-35 is disclosed.

Abstract: Catalyst poisoning contaminants such as arsenic and selenium are removed from hydrocarbonaceous fluids particularly shale oil by contact with high-sodium alumina in the presence of hydrogen; saturation of conjugated diolefins is also effected.

Abstract: A new CoMo/alumina catalyst of improved stability and activity for demetalation/desulfurization of residual oil fractions having about 40 to 75% of its pore volume in 150-200 A diameter pores and up to about 5% of its pore volume in 500 A+ diameter pores.

Abstract: This invention is concerned with removing metal and sulfur contaminants from residual oil fractions by catalytic contact with an improved catalyst comprising the oxides or sulfides of a Group VIB metal and an iron group metal supported on an alumina that contains dispersed Delta and/or Theta phase alumina, the catalyst having at least 45% of its pore volume in pores 30 to 150A diameter, at least 10% of its pore volume in pores less than 30A diameter, and at least 15% of its pore volume in pores greater than 300A diameter. The process can be used to prepare feedstock for catalytic cracking.

Abstract: Desulfurization, denitrogenation, deoxygenation and CCR reduction of highly aromatic petroleum and coal derived liquids are conducted with hydrogen and with a refractory base catalyst incorporating at least one Group VIA metal and at least one Group VIII metal. The catalyst has a surface area of between about 100 and 300 m.sup.2 /g and a total pore volume of between about 0.3 and 1.

Abstract: Novel catalyst support, catalyst and process for hydrodemetalizing sulfur and metal-contaminated hydrocarbon oils such as residual petroleum fractions or whole crudes. The process may be used to prepare feedstocks suitable for fluid catalytic cracking. The novel catalyst support is alumina modified with rare earth oxide.

Abstract: This invention is concerned with removing metal and sulfur contaminants from residual oil fractions by catalytic contact with an improved catalyst comprising the oxides or sulfides of a Group VIB metal and an iron group metal supported on an alumina that contains dispersed Delta and/or Theta phase alumina, the catalyst having at least 45% of its pore volume in pores 30 to 150A diameter, at least 10% of its pore volume in pores less than 30A diameter, and at least 15% of its pore volume in pores greater than 300A diameter. The process can be used to prepare feedstock for catalytic cracking.

Abstract: This disclosure concerns the demetalation and desulfurization of metal and sulfur containing petroleum oils, preferably those containing residua hydrocarbon components, through the use of a catalyst comprising a hydrogenating component composited on a refractory base, preferably an alumina, whose pores are substantially distributed over a narrow 180A to 300A diameter range.