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. 21, 2015
Filed:
Feb. 28, 2012
Laure Bisson, Paris, FR;
Julien Hernandez, Antony, FR;
Rui Miguel Jorge Coelho Marques, Paris, FR;
Emmanuel Rohart, Sainte Soulle, FR;
Mila Bortun, Easton, PA (US);
Deborah Jayne Harris, Manchester, GB;
Clare Jones, Liverpool, GB;
Laure Bisson, Paris, FR;
Julien Hernandez, Antony, FR;
Rui Miguel Jorge Coelho Marques, Paris, FR;
Emmanuel Rohart, Sainte Soulle, FR;
Mila Bortun, Easton, PA (US);
Deborah Jayne Harris, Manchester, GB;
Clare Jones, Liverpool, GB;
Rhodia Operations, Paris, FR;
Magnesium Elektron Limited, Salford, GB;
Abstract
The invention relates to a method for treating a gas containing nitrogen oxides (NOx), in which an NOx-reduction reaction is carried out using a nitrogen-containing reducing agent, which invention is characterized in that the catalyst used for the reduction reaction is a catalytic system containing a composition comprising zirconium, cerium and niobium in the following percentages by weight, expressed in terms of the weight of oxide: 10-50% of cerium, 5-20% of niobium and the remainder consisting of zirconium.