Selective catalytic reduction system and process using a pre-sulfated zirconia binder
Patent
·
OSTI ID:1176400
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.
- Research Organization:
- Siemens Energy, Inc., Orlando, FL, (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-05NT42644
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- Patent Number(s):
- 7,744,840
- Application Number:
- 12/472,633
- OSTI ID:
- 1176400
- Resource Relation:
- Patent File Date: 2009 May 27
- Country of Publication:
- United States
- Language:
- English
Low temperature catalytic NOx–H2 reactions over Pt/TiO2-ZrO2 in an excess oxygen
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journal | December 2001 |
The current state of research on automotive lean NOx catalysis
|
journal | September 1997 |
An investigation of the NO/H2/O2 reaction on noble-metal catalysts at low temperatures under lean-burn conditions
|
journal | November 1999 |
Low-temperature H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst
|
journal | March 2007 |
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