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Title: Selective catalytic reduction system and process using a pre-sulfated zirconia binder

Abstract

A selective catalytic reduction (SCR) process with a palladium catalyst for reducing NOx in a gas, using hydrogen as a reducing agent is provided. The process comprises contacting the gas stream with a catalyst system, the catalyst system comprising (ZrO.sub.2)SO.sub.4, palladium, and a pre-sulfated zirconia binder. The inclusion of a pre-sulfated zirconia binder substantially increases the durability of a Pd-based SCR catalyst system. A system for implementing the disclosed process is further provided.

Inventors:
;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL, (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176400
Patent Number(s):
7744840
Application Number:
12/472,633
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02C - CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2009 May 27
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Sobolevskiy, Anatoly, and Rossin, Joseph A. Selective catalytic reduction system and process using a pre-sulfated zirconia binder. United States: N. p., 2010. Web.
Sobolevskiy, Anatoly, & Rossin, Joseph A. Selective catalytic reduction system and process using a pre-sulfated zirconia binder. United States.
Sobolevskiy, Anatoly, and Rossin, Joseph A. Tue . "Selective catalytic reduction system and process using a pre-sulfated zirconia binder". United States. https://www.osti.gov/servlets/purl/1176400.
@article{osti_1176400,
title = {Selective catalytic reduction system and process using a pre-sulfated zirconia binder},
author = {Sobolevskiy, Anatoly and Rossin, Joseph A.},
abstractNote = {A selective catalytic reduction (SCR) process with a palladium catalyst for reducing NOx in a gas, using hydrogen as a reducing agent is provided. The process comprises contacting the gas stream with a catalyst system, the catalyst system comprising (ZrO.sub.2)SO.sub.4, palladium, and a pre-sulfated zirconia binder. The inclusion of a pre-sulfated zirconia binder substantially increases the durability of a Pd-based SCR catalyst system. A system for implementing the disclosed process is further provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 29 00:00:00 EDT 2010},
month = {Tue Jun 29 00:00:00 EDT 2010}
}

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