Catalysts to reduce NO.sub.x in an exhaust gas stream and methods of preparation
Abstract
Catalysts, systems and methods are described to reduce NO.sub.x emissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having a catalyst comprising silver on a particulate alumina support, the silver having a diameter of less than about 20 nm. Methods of manufacturing catalysts are described in which ionic silver is impregnated on particulate hydroxylated alumina particles.
- Inventors:
-
- Basking Ridge, NJ
- Princeton, NJ
- Hamilton, NJ
- Ringoes, NJ
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1043901
- Patent Number(s):
- 8173574
- Application Number:
- 11/857,896
- Assignee:
- BASF Corporation (Florham Park, NJ)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- DOE Contract Number:
- FC26-02NT41218
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Koermer, Gerald S, Moini, Ahmad, Furbeck, Howard, and Castellano, Christopher R. Catalysts to reduce NO.sub.x in an exhaust gas stream and methods of preparation. United States: N. p., 2012.
Web.
Koermer, Gerald S, Moini, Ahmad, Furbeck, Howard, & Castellano, Christopher R. Catalysts to reduce NO.sub.x in an exhaust gas stream and methods of preparation. United States.
Koermer, Gerald S, Moini, Ahmad, Furbeck, Howard, and Castellano, Christopher R. Tue .
"Catalysts to reduce NO.sub.x in an exhaust gas stream and methods of preparation". United States. https://www.osti.gov/servlets/purl/1043901.
@article{osti_1043901,
title = {Catalysts to reduce NO.sub.x in an exhaust gas stream and methods of preparation},
author = {Koermer, Gerald S and Moini, Ahmad and Furbeck, Howard and Castellano, Christopher R},
abstractNote = {Catalysts, systems and methods are described to reduce NO.sub.x emissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having a catalyst comprising silver on a particulate alumina support, the silver having a diameter of less than about 20 nm. Methods of manufacturing catalysts are described in which ionic silver is impregnated on particulate hydroxylated alumina particles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 08 00:00:00 EDT 2012},
month = {Tue May 08 00:00:00 EDT 2012}
}
Works referenced in this record:
Selective reduction of NO on Ag/Al2O3 catalysts prepared from boehmite needles
journal, October 1998
- Takagi, K.; Kobayashi, T.; Ohkita, H.
- Catalysis Today, Vol. 45, Issue 1-4
Catalytic reduction system of NOx in exhaust gases from diesel engines with secondary fuel injection
journal, August 1998
- Nakatsuji, T.; Yasukawa, R.; Tabata, K.
- Applied Catalysis B: Environmental, Vol. 17, Issue 4
Low temperature selective oxidation of ammonia to nitrogen on silver-based catalysts
journal, January 2003
- Gang, Lu; Anderson, B. G.; van Grondelle, J.
- Applied Catalysis B: Environmental, Vol. 40, Issue 2
Alumina: Catalyst and Support. I. Alumina, its Intrinsic Acidity and Catalytic Activity 1
journal, May 1960
- Pines, Herman; Haag, Werner O.
- Journal of the American Chemical Society, Vol. 82, Issue 10