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:
Sep. 02, 2003
Filed:
Sep. 20, 2000
Applicant:
Inventor:
Ralf Sigling, Alpharetta, GA (US);
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 5/386 ; B01D 5/356 ;
U.S. Cl.
CPC ...
B01D 5/386 ; B01D 5/356 ;
Abstract
With a catalyst that is operated in a dust-containing off-gas, there is a problem with the catalyst becoming blocked by individual particles contained in a gas flowing onto the catalyst. The invention describes a catalyst body with a multiplicity of first longitudinal passages, which also contains second longitudinal passages. The second longitudinal passages have a larger passage cross-section than the first longitudinal passages. As a result, the advantage of a high specific surface area per volume of the catalyst is maintained in combination with simultaneous permeability to individual particles.