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:
Oct. 01, 2019
Filed:
Jan. 30, 2017
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Nuria Martín García, Valencia, ES;
Manuel Moliner Marín, Valencia, ES;
Avelino Corma Canós, Valencia, ES;
Joakim Reimer Thøgersen, Virum, DK;
Peter Nicolai Ravnborg Vennestrøm, Copenhagen S, DK;
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
A method for the removal of nitrogen oxides from exhaust, flue or off gas by selective catalytic reduction in presence of ammonia as a reductant, comprising the steps of contacting the exhaust gas together with the ammonia or a precursor thereof with an SCR catalyst comprising a Fe-AEI zeolite material essentially free of alkali metal ions (Alk), having the following molar compositions:SiOAlOFe:Alkwherein o is in the range from 0.001 to 0.2;wherein p is in the range from 0.001 to 0.2;wherein Alk is one or more of alkali metal ions and wherein q is below 0.02.