Process for minimizing solids contamination of liquids from coal pyrolysis

US4263124A · kind A · utility

Assignee

• Occidental Petroleum · US

Inventors

• Gary H. Wickstrom · Yorba Linda, US
• Everett W. Knell · Los Alamitos, US
• Benjamin Wade Shaw · Brooks Road, US
• Yue Wang · Beijing, CN

Key dates

• Filing date: Jun 5, 1979
• Grant date: Apr 21, 1981
• Expiry date: Jun 5, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G1/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

In a continuous process for recovery of liquid hydrocarbons from a solid carbonaceous material by pyrolysis of the carbonaceous material in the presence of a particulate source of heat, particulate contamination of the liquid hydrocarbons is minimized. This is accomplished by removing fines from the solid carbonaceous material feed stream before pyrolysis, removing fines from the particulate source of heat before combining it with the carbonaceous material to effect pyrolysis of the carbonaceous material, and providing a coarse fraction of reduced fines content of the carbon containing solid residue resulting from the pyrolysis of the carbonaceous material before oxidizing carbon in the carbon containing solid residue to form the particulate source of heat.