Catalytic dewaxing
Patent
·
OSTI ID:5571866
This patent describes a catalytic process for dewaxing a waxy lubricating oil stock boiling in the range of about 450{degrees} F.+ and selected from the group consisting of a low nitrogen content deasphalted raffinate, distilled hydrocracker bottoms, and mixtures thereof. It comprises contacting the waxy stock and hydrogen gas with a catalyst comprising a crystalline aluminosilicate zeolite having a Constraint Index of 1 to about 12 and a silica to alumina ratio greater than 12, the contacting being conducted under a combination of conditions including a temperature of 400{degrees} to about 725{degrees} F.; hydrotreating the effluent prior to recovering the dewaxed lubricating oil stock and low octane by-product naptha.
- Assignee:
- Mobil Oil Corp., Fairfax, VA (United States)
- Patent Number(s):
- US 5053117; A
- Application Number:
- PPN: US 7-557244
- OSTI ID:
- 5571866
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
ALKANES
ALKENES
BY-PRODUCTS
CATALYTIC CRACKING
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COAL TAR OILS
CRACKING
DECOMPOSITION
DEWAXING
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROCRACKING
LUBRICANTS
LUBRICATING OILS
NAPHTHA
OCTANE
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
ALKANES
ALKENES
BY-PRODUCTS
CATALYTIC CRACKING
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COAL TAR OILS
CRACKING
DECOMPOSITION
DEWAXING
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROCRACKING
LUBRICANTS
LUBRICATING OILS
NAPHTHA
OCTANE
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES