基本信息:
- 专利标题： A METHOD OF PURIFYING WASTE GASES AND A GAS BURNER
- 专利标题（中）：清理方法排气和燃气燃烧器
- 申请号：EP98948008.2 申请日：1998-09-29
- 公开(公告)号：EP1024884B1 公开(公告)日：2005-09-14
- 发明人： LINDSKOG, Nils
- 申请人： Sandvik Intellectual Property AB
- 申请人地址： 811 81 Sandviken SE
- 专利权人： Sandvik Intellectual Property AB
- 当前专利权人： Sandvik Intellectual Property AB
- 当前专利权人地址： 811 81 Sandviken SE
- 代理机构： Örtenblad, Bertil Tore
- 优先权： SE9703819 19971020; SE9800473 19980218
- 国际公布： WO1999020375 19990429
- 主分类号： B01D53/94
- IPC分类号： B01D53/94 ; F01N3/28 ; F23C11/00 ; F23C6/04
摘要：
A method of cleansing nitrogen oxide (NOx), hydrocarbon (HC) and carbon monoxide (CO) from waste gases, such as the waste gases or exhaust gases originating from burners and internal combustion engines. The waste gases, or exhaust gases, are passed through a catalyst for catalytic cleansing of the gases. The air-fuel ratio, or the lambda value (L), is reduced to a level below L=1. The gases are passed through a first catalyst and then through a second catalyst, to bring the CO-content of the gas in the first catalyst to a sufficiently high level and to reduce NOx to N2 to an extent such as to bring the NOx content down to a predetermined level. Sufficient oxygen (O2) is delivered to the gases at a point between the first and second catalysts to oxidize both CO and HC to CO2 and H2O to such an extent as to reduce the CO-content of the gas to a predetermined level. A gas burner to carry out the method is also disclosed.
公开/授权文献:
- EP1024884A1 A METHOD OF PURIFYING WASTE GASES, AND A GAS BURNER 公开/授权日：2000-08-09