TWO-STAGE HYDROCARBON DEWAXING HYDROTREATING PROCESS

摘要

TWO-STAGE HYDROCARBON DEWAXING HYDROTREATING PROCESS The pour point of a hydrocarbon charge stock boiling in the range of 204.degree. to 566.degree.C (400.degree.F to 1050.degree.F), and particularly a lubricating oil charge stock boiling from 316.degree. to 566.degree.C (600.degree.F to 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 selected from ZSM-5, ZSM-11, ZSM-23 and ZSM-35 zeolites.