Solvent dewaxing waxy hydrocarbon distillates using a combination polyacrylate polymer and polymethacrylate polymer dewaxing aid

Patent · Tue May 29 04:00:00 EDT 1984

OSTI ID:6483245

Briens, C L; Ewener, P C; Sankey, B M

This invention relates to solvent dewaxing processes, for dewaxing waxy hydrocarbon oils using a dewaxing aid. The dewaxing aid comprises a mixture of (A) polyalkyl arcylate having alkyl group side chain length of from 10-26 carbons (excluding branching) and (B) an n-alkyl methacrylate polymer having alkyl group side chain length of from 10-20 carbons (excluding branching). Component (A) typically has a number average molecular weight of from 3,000 to 500,000 while component (B) typically has a number average molecular weight of from 5,000 to 200,000. The combination (A) plus (B) may be employed in a weight ratio within the range from about 1/100 to 100/1, preferably about 1/6 to 2/1 and at an aid does level ranging from about 0.01 wt % to 1 wt %, preferably 0.02 to 0.2 wt % active ingredient.

• Assignee: Exxon Research and Engineering Co. (Canada)
• Patent Number(s): US 4451353
• OSTI ID: 6483245
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CARBON
CHEMICAL COMPOSITION
DEWAXING
DISPERSIONS
DISTILLATES
ELEMENTS
ENERGY SOURCES
ESTERS
EXTRACTION
FILTRATION
FOSSIL FUELS
FUELS
HEAT EXCHANGERS
MIXING
MIXTURES
MOLECULAR STRUCTURE
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
POLYACRYLATES
POLYMERS
POLYVINYLS
QUANTITY RATIO
SEPARATION PROCESSES
SLURRIES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SUSPENSIONS
WAXES