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. 09, 2011
Filed:
Sep. 25, 2007
Soren Birk Rasmussen, Soborg, DK;
Arkady Kustov, Copenhagen, DK;
Rasmus Fehrmann, Copenhagen, DK;
Johannes Due-hansen, Gentofte, DK;
Soren Birk Rasmussen, Soborg, DK;
Arkady Kustov, Copenhagen, DK;
Rasmus Fehrmann, Copenhagen, DK;
Johannes Due-Hansen, Gentofte, DK;
Technical University of Denmark, Lyngby, DK;
Abstract
The present invention concerns the selective removal of nitrogen oxides (NOx) from gasses. In particular, the invention concerns a process, a catalyst and the use of a catalyst for the selective removal of nitrogen oxides in the presence of ammonia from gases containing a significant amount of alkali metal and/or alkali-earth compounds which process comprises using a catalyst combined of (i) a formed porous superacidic support, said superacidic support having an Hammett acidity stronger than Ho=−12, and (ii) a metal oxide catalytic component deposited on said superacidic support selected from the group consisting of oxides of Fe, Cu, V, Cr, Mn, and any mixtures thereof.