Refinery anti-foulant-asphaltene dispersant

Patent · Tue Mar 31 00:00:00 EST 1992

OSTI ID:5253657

Stephenson, W K; Mercer, B D; Comer, D G

This patent describes a method of dispersing asphalt and asphaltene in petroleum, crude oil, or any hydrocarbon fraction thereof exposed to heat transfer processes in an oil refinery. It comprises: adding an effective anti-foulant amount of asphalt-asphaltene polymeric anti-foulant to the petroleum, crude oil, or fraction thereof, the polymeric anti-foulant comprising an admixture of Polymer A and Polymer B ranging from 95 to 5 weight percent A and from 5 to 95 weight percent B, wherein Polymer A is an alkyl substituted phenol-formaldehyde liquid resin having a weight average molecular weight ranging from about 1,000 to about 20,000, and an alkyl substituent may be a linear or branched alkyl group; an Polymer B is a hydrophilic-lipophilic vinylic polymer.

• Assignee: Nalco Chemical Co., Naperville, IL (United States)
• Patent Number(s): US 5100531; A
• Application Number: PPN: US 7-687160
• OSTI ID: 5253657
• Resource Relation: Patent File Date: 18 Apr 1991
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM REFINERIES
ANTIFOULANTS
ASPHALTENES
ASPHALTS
CHEMICAL REACTION KINETICS
DISPERSIONS
HEAT TRANSFER
PETROLEUM FRACTIONS
POLYMERS
BITUMENS
ENERGY SOURCES
ENERGY TRANSFER
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
KINETICS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
REACTION KINETICS
TAR
020400* - Petroleum- Processing
020500 - Petroleum- Products & By-Products