Mobil Oil Corporation

Robert C Wilson, Jr

Stephen M Oleck

Stuart S Shih

Albert B Schwartz

Roland H Heck

Philip Jay Angevine

John P McWilliams

Thomas R Stein

Sadi Mizrahi

Henry R Ireland

Frederick Banta

Catherine T Sigal

Margaret I Nemet-Mavrodin

Stephen M Cleck

Heavy oils are simultaneously subjected to hydrocracking and dewaxing using a catalyst comprising zeolite beta and an X or Y or other faujasite zeolite together with a hydrogenation component. The process is able to effect a bulk conversion of the oil while, at the same time, yielding a low pour point product.

Catalysts for cracking and dewaxing hydrocarbon oils

A method is provided for removing trace amounts of organic chlorides from feedstocks by passing the feedstock in contact with a guard bed catalyst comprising shaped particles formed by extruding a mixture of magnesium oxide and a binder inert to the feedstock. The process has particular importance in removing organic chlorides from toluene feedstocks prior to contacting toluene with a disproportionation or alkylation catalyst comprising magnesium-ZSM-5.

Guard bed catalyst for organic chloride removal from hydrocarbon feed

A single catalyst system capable of demetalizing, hydrotreating and hydrodewaxing petroleum residue in a single stage process is described. The catalyst system utilized includes one or more metal oxides or sulfides of Group VIA and Group VIII of the periodic Table impregnated on a base of refractory oxide material and Zeolite Beta. The catalyst also has about 75% of its pore volume in pores no greater than 100 Angstrom units in diameter and about 20% of its pore volume in pore greater than about 300 Angstrom units in diameter.

Catalyst composition comprising Zeolite Beta

There is provided a zeolite containing catalyst support for denitrogenation of oil feedstocks such as shale oil. The denitrogenation catalyst contains an active hydrogenation catalyst component such as a nickel/molybdenum catalyst.

Zeolite containing catalyst support for denitrogenation of oil feedstocks

The catalytic demetalation and desulfurization of a residual oil is substantially improved by subjecting the residual oil to hydrodewaxing prior to the demetalation and desulfurization comprising prior to contacting the residual oil with demetalation and desulfurization catalysts, contacting the residual oil, under hydrodewaxing operating conditions effective to significantly reduce the pour point of the residual oil and to cause substantially little demetalization of the residual oil, with a catalyst comprising about 1 to about 10 weight percent of a Group VIB metal, the metals based on the total catalyst, and being present as the oxides or sulfides on a support comprising a composite of alumina and about 5 to about 25 weight percent of a ZSM-5 crystalline zeolite based on the total composite, the catalyst having at least 60 percent of its pore volume in the 50 to 200 Angstroms diameter range or at least 50% of the pore volume in the 30 to 100 Angstroms diameter range.

Process for dewaxing of petroleum oils prior to demetalation and

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 diameter of less than 150 Angstroms.

Process for hydrotreating petroleum residua and catalyst therefor

A catalytic multi-stage hydrocarbon conversion process is provided for reducing high metals content, sulfur content and pour point of the catalytically reacted residual oil by the use of sequential combination of catalytic compositions. In the first stage, the residual oil, under demetalation and desulfurization reaction conditions, is passed over a catalyst comprising about 1 to about 10 weight percent of a Group VIB metal, based on the total catalyst weight, on a supporting comprising at least 85 weight percent alumina. The resulting catalyst contains at least 65 percent of its pore volume in the 150 to 300 Angstroms diameter range or at least 60 percent of its pore volume in the 100 to 200 Angstroms diameter range. The resulting product of stage 1, under desulfurization and dewaxing conditions, is then passed over a second catalyst comprising about 1 to about 10 percent of an iron group metal and about 5 to about 25 weight percent of a Group VIB metal, based on the total catalyst weight, on a support comprising a composite of alumina and a minor amount of about 5 to about 25 weight percent of a ZSM-5 crystalline zeolite based on the total composite. The resulting catalyst contains at least 60 percent of its pore volume in the 50 to 200 Angstroms diameter range or at least 50% of its pore volume in the 30 to 100 Angstroms diameter range.

Multi-stage process for demetalation, desulfurization and dewaxing of

The pour point of a hydrocarbon charge stock boiling above about 850.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.

Two-stage hydrocarbon dewaxing hydrotreating process

Process for hydrocracking and dewaxing hydrocarbon oils

A high quality lube base stock oil of low pour point and excellent stability is produced from a waxy crude oil fraction in a single-stage hydrodewaxing process by using an improved ZSM-5 type catalyst having nickel-molybdenum, cobalt-molybdenum or a molybdenum hydrogenation agent incorporated thereon.

Hydrodewaxing with Mo, Ni-Mo, or Co-Mo on Zsm-5 type catalysts

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.

Process for simultaneous hydrodesulfurization and hydrodewaxing with a

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.

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.

Growing community of inventors

Woodbury, NJ, United States of America

Robert C Wilson, Jr