Method for low-severity gasification of heavy petroleum residues

US9428706B2 · kind B2 · utility

Assignee

• AFINA ENERGY INC. · CA

Inventors

• Esteban Chornet · Sherbrooke, CA
• Aca Mincic · Keyano, CA
• Martin Gagnon · Ottawa, CA
• Boris Valsecchi · Sherbrooke, CA

Key dates

• Filing date: Dec 10, 2007
• Grant date: Aug 30, 2016
• Expiry date: Oct 25, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E20/18
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method for co-producing a sulfur-containing raw synthetic gas and an essentially desulfurized solid residue from a sulfur-containing heavy petroleum residue feedstock, comprising feeding a bubbling fluidized-bed gasification reactor with the feedstock, and converting the feedstock to a raw synthetic gas by a partial oxidation reaction in the presence of water at a temperature at or below about 1000° C. and a pressure at or below about 10 atm, thereby also producing an essentially desulfurized solid residue, while the sulfur components are essentially comprised in the raw synthetic gas; and separately recovering the essentially desulfurized solid residue and the sulfur-containing raw synthetic gas.