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:
Nov. 25, 2008
Filed:
Jun. 20, 2002
Applicants:
Pekka Simell, Vantaa, FI;
Esa Kurkela, Espoo, FI;
Inventors:
Pekka Simell, Vantaa, FI;
Esa Kurkela, Espoo, FI;
Assignee:
Valtion Teknillinen Tutkimuskeskus, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 3/24 (2006.01); C01B 3/36 (2006.01); C10J 3/46 (2006.01); C10J 3/54 (2006.01); B01J 7/00 (2006.01); B01J 25/00 (2006.01); B01J 23/00 (2006.01); H01M 8/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for the purification of gasification gas obtained from a carbonaceous material. The purification is carried out by adding oxygen or an oxygen-containing gas to the gasification gas and by contacting the gas mixture with a solid catalyst. According to the invention the catalyst contains at least one zirconium compound, such as zirconium oxide, which is used in particulate form as such or, for example, combined with an inert, honeycomb-structured support. By the purification, ammonia and organic tarry impurities can be removed from the gas simultaneously.