Process for producing high quality, high molecular weight microcrystalline wax derived from undewaxed bright stock

Patent · Tue Aug 26 04:00:00 EDT 1986

OSTI ID:5178114

Miller, S J

A process is described for preparing high molecular weight microcrystalline wax from a hydrocracked, undewaxed bright stock, comprising: (a) contacting the bright stock with hydrogen in the presence of a catalyst having hydrodenitrification activity under conditions effective to reduce the nitrogen content of the stock to produce a substantially nitrogen-free product; (b) contacting the substantially nitrogen-free product with hydrogen in the presence of a catalyst having hydrogenation activity under mild conditions to produce a wax-containing oil; and (c) solvent dewaxing the wax-containing oil to produce high molecular weight microcrystalline wax.

• Assignee: Chevron Research Co., San Francisco, CA
• Patent Number(s): US 4608151
• OSTI ID: 5178114
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRACKING
CRYSTAL STRUCTURE
DECOMPOSITION
DENITRIFICATION
DEWAXING
ELEMENTS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROCRACKING
HYDROGEN
HYDROGENATION
MICROSTRUCTURE
MOLECULAR WEIGHT
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PYROLYSIS
QUANTITY RATIO
SEPARATION PROCESSES
SOLVENT EXTRACTION
SYNTHESIS
THERMOCHEMICAL PROCESSES
WAXES