Method for removing asphaltene deposits

US7754657B2 · kind B2 · utility

Assignee

• INEOS USA LLC · US

Inventors

• Marvin I. Trimble · Swan Hills, CA
• Mark Fleming · Cambridge, US
• Blair L. Andrew · Lacombe, CA
• Greg A. Tomusiak · Red Deer, CA
• Peter M. DiGiacinto · Seabrook, US
• Luc M. Heymans · Düsseldorf, DE

Key dates

• Filing date: Jul 20, 2006
• Grant date: Jul 13, 2010
• Expiry date: Nov 17, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G75/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compositions comprising at least one C4-C30 olefin or oxidation product thereof and kerosene or an aromatic solvent are particularly effective for use in removing asphaltene and asphaltene-containing organic deposits and in preventing or reducing the precipitation and deposition of asphaltenes from hydrocarbon fluids. When added to heavy oils comprising asphaltenes, alone or in combination with dispersants and further inhibitors, the invented compositions lower viscosity and pour point, and aid in preventing asphaltene precipitation during transport and in combustion.