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:
Apr. 01, 2014
Filed:
Aug. 29, 2011
Siva Sankar Reddy Putluru, KGS. Lyngby, DK;
Anders Riisager, Taastrup, DK;
Rasmus Fehrmann, Kobenhavn O, DK;
Siva Sankar Reddy Putluru, KGS. Lyngby, DK;
Anders Riisager, Taastrup, DK;
Rasmus Fehrmann, Kobenhavn O, DK;
Danmarks Tekniske Universitet, KGS. Lyngby, DK;
Abstract
The present invention concerns the selective removal of nitrogen oxides (NOx) from gases. In particular, the invention concerns a process, a highly alkali metal resistant heteropoly acid promoted catalyst and the use of said catalyst for removal of NOx from exhaust or flue gases, said gases comprising alkali or earth alkali metals. Such gases comprise for example flue gases arising from the burning of biomass, combined biomass and fossil fuel, and from waste incineration units. The process comprises the selective catalytic reduction (SCR) of NOx, such as nitrogen dioxide (NO) and nitrogen oxide (NO) with ammonia (NH) or a nitrogen containing compound selected from ammonium salts, urea or a urea derivative or a solution thereof as reductant.