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Title: Process of activation of a palladium catalyst system

Abstract

Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and hydrogen over the catalyst system and increasing a temperature of the catalyst system to a temperature of at least 180.degree. C. at a heating rate of from 1-20.degree./min. Use of activation processes described herein leads to a catalyst system with superior NOx reduction capabilities.

Inventors:
 [1];  [2];  [2]
  1. Orlando, FL
  2. Columbus, OH
Issue Date:
Research Org.:
Siemens Energy, Inc. (Orlando, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1026670
Patent Number(s):
7989385
Application Number:
12/613,176
Assignee:
Siemens Energy, Inc. (Orlando, FL)
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:  
FC26-05NT42644
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. Process of activation of a palladium catalyst system. United States: N. p., 2011. Web.
Sobolevskiy, Anatoly, Rossin, Joseph A, & Knapke, Michael J. Process of activation of a palladium catalyst system. United States.
Sobolevskiy, Anatoly, Rossin, Joseph A, and Knapke, Michael J. Tue . "Process of activation of a palladium catalyst system". United States. https://www.osti.gov/servlets/purl/1026670.
@article{osti_1026670,
title = {Process of activation of a palladium catalyst system},
author = {Sobolevskiy, Anatoly and Rossin, Joseph A and Knapke, Michael J},
abstractNote = {Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and hydrogen over the catalyst system and increasing a temperature of the catalyst system to a temperature of at least 180.degree. C. at a heating rate of from 1-20.degree./min. Use of activation processes described herein leads to a catalyst system with superior NOx reduction capabilities.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}

Works referenced in this record:

Industrial H2-SCR of NO on a novel Pt/MgO–CeO2 catalyst
journal, September 2007