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Title: Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst

Abstract

A process for the catalytic reduction of nitrogen oxides (NOx) in a gas stream (29) in the presence of H.sub.2 is provided. The process comprises contacting the gas stream with a catalyst system (38) comprising zirconia-silica washcoat particles (41), a pre-sulfated zirconia binder (44), and a catalyst combination (40) comprising palladium and at least one of rhodium, ruthenium, or a mixture of ruthenium and rhodium.

Inventors:
 [1];  [2];  [2]
  1. Orlando, FL
  2. Columbus, OH
Publication Date:
Research Org.:
Siemens Energy, Inc. (Orlando, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1019432
Patent Number(s):
7,976,805
Application Number:
US Patent Application 12/773,052
Assignee:
Siemens Energy, Inc. (Orlando, FL)
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Sobolevskiy, Anatoly, Rossin, Joseph A, and Knapke, Michael J. Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst. United States: N. p., 2011. Web.
Sobolevskiy, Anatoly, Rossin, Joseph A, & Knapke, Michael J. Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst. United States.
Sobolevskiy, Anatoly, Rossin, Joseph A, and Knapke, Michael J. Tue . "Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst". United States. https://www.osti.gov/servlets/purl/1019432.
@article{osti_1019432,
title = {Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst},
author = {Sobolevskiy, Anatoly and Rossin, Joseph A and Knapke, Michael J},
abstractNote = {A process for the catalytic reduction of nitrogen oxides (NOx) in a gas stream (29) in the presence of H.sub.2 is provided. The process comprises contacting the gas stream with a catalyst system (38) comprising zirconia-silica washcoat particles (41), a pre-sulfated zirconia binder (44), and a catalyst combination (40) comprising palladium and at least one of rhodium, ruthenium, or a mixture of ruthenium and rhodium.},
doi = {},
url = {https://www.osti.gov/biblio/1019432}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {7}
}

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Works referenced in this record:

Low temperature catalytic NOx–H2 reactions over Pt/TiO2-ZrO2 in an excess oxygen
journal, December 2001


The current state of research on automotive lean NOx catalysis
journal, September 1997


Low-temperature H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst
journal, March 2007