Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Reexamination Certificate
2011-08-09
2011-08-09
Vanoy, Timothy C (Department: 1734)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
C502S345000, C502S325000, C502S353000, C502S305000, C502S324000, C502S300000
Reexamination Certificate
active
07993617
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.
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Due-Hansen Johannes
Fehrmann Rasmus
Kustov Arkady
Rasmussen Soren Birk
Fish & Richardson P.C.
Technical University of Denmark
Vanoy Timothy C
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