Multi-bed hydrodewaxing process

Patent · Tue Jul 01 04:00:00 EDT 1986

OSTI ID:5512267

Penick, J E

A continuous cascading multi-bed process is described for catalytic hydrodewaxing of waxy, heavy hydrocarbon fraction feedstock comprising the conversion steps of: partially dewaxing the feedstock by contacting the feedstock at elevated temperature with a first catalyst bed comprising a ZSM-5 type crystalline zeolite in the presence of hydrogen; subsequently contacting the partially dewaxed effluent from the first bed with at least one separate hdyrogenation catalyst bed under hydrotreating conditions to saturate olefinic reaction products of the dewaxing step; further catalytically dewaxing the hydrotreated feedstock in contact with ZSM-5 type catalyst in at least one additional catalytic dewaxing step; and further hydrogenating the dewaxed feedstock in additional hydrotreating step.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4597854
• OSTI ID: 5512267
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKENES
CATALYSIS
CATALYSTS
CHEMICAL REACTIONS
DEWAXING
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGEN
HYDROGENATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
SEPARATION PROCESSES
VISCOSITY
ZEOLITES