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:
Jan. 25, 2005
Filed:
Jul. 01, 2002
Edward Jobson, Romelanda, SE;
Mikael Larsson, Mölndal, SE;
Björn Heed, Göteborg, SE;
Stefan Witte, Västra Frölunda, SE;
Edward Jobson, Romelanda, SE;
Mikael Larsson, Mölndal, SE;
Björn Heed, Göteborg, SE;
Stefan Witte, Västra Frölunda, SE;
Enklaver AB and AB Volvo, Gothenburg, SE;
Abstract
Method and arrangement for treatment of a gas-flow in connection with a NOreducing catalyst () that include guiding the gas-flow through an exhaust gas treatment unit () having several ducts () with exchange of heat between the ducts (). The ducts () are connected to an inlet and an outlet, respectively, at the exhaust gas treatment unit () so that the gas-flow occurs during exchange of heat between incoming and outgoing flows. Reduction of NOcompounds in the gas-flow is accomplished by means of the NOreducing catalyst (). An adaptation of the temperature of the exhaust gas treatment unit () is affected to the prevailing operating condition of the NOreducing catalyst (). The method and apparatus enable provision of the required exhaust gas temperature for NOreduction, while also accommodating the temperature limitations imposed by sulphur absorption and regeneration subsystems.