The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Jun. 27, 2008
Applicants:
Diethmar Richter, Berlin, DE;
Holger Thielert, Dortmund, DE;
Guenter Wozny, Gliencke, DE;
Inventors:
Assignee:
UHDE GmbH, Dortmund, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B 5/00 (2006.01); B00B 7/04 (2006.01); B00B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of removing aromatic hydrocarbons from coke-oven gas. The coke-oven gas is contacted with a wash liquid in a gas scrubber, and aromatic hydrocarbons are separated by absorption from the coke-oven gas. Subsequently the wash liquid enriched with aromatic hydrocarbons is heated, and the aromatic hydrocarbons are stripped from the wash liquid using water vapor. After cooling the wash liquid is finally returned to the gas scrubber. According to the invention biodiesel is used as the wash liquid.