Invention Grant
US07988940B2 Selective catalytic reduction system and process for treating NOx emissions using a zinc or titanium promoted palladium-zirconium catalyst
有权
选择性催化还原系统和使用锌或钛促进的钯 - 锆催化剂处理NOx排放的方法
- Patent Title: Selective catalytic reduction system and process for treating NOx emissions using a zinc or titanium promoted palladium-zirconium catalyst
- Patent Title (中): 选择性催化还原系统和使用锌或钛促进的钯 - 锆催化剂处理NOx排放的方法
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Application No.: US12773057Application Date: 2010-05-04
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Publication No.: US07988940B2Publication Date: 2011-08-02
- Inventor: Anatoly Sobolevskiy , Joseph A. Rossin , Michael J. Knapke
- Applicant: Anatoly Sobolevskiy , Joseph A. Rossin , Michael J. Knapke
- Applicant Address: US FL Orlando
- Assignee: Siemens Energy, Inc.
- Current Assignee: Siemens Energy, Inc.
- Current Assignee Address: US FL Orlando
- Main IPC: B01D53/56
- IPC: B01D53/56 ; B01D53/74 ; G05D21/00
Abstract:
A process and system (18) for reducing NOx in a gas using hydrogen as a reducing agent is provided. The process comprises contacting the gas stream (29) with a catalyst system (38) comprising sulfated zirconia washcoat particles (41), palladium, a pre-sulfated zirconia binder (44), and a promoter (45) comprising at least one of titanium, zinc, or a mixture thereof. The presence of zinc or titanium increases the resistance of the catalyst system to a sulfur and water-containing gas stream.
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