发明申请
US20070082306A1 Method of maintaining a fuel Wobbe index in an IGCC installation
有权
在IGCC安装中维持燃料Wobbe指数的方法
- 专利标题: Method of maintaining a fuel Wobbe index in an IGCC installation
- 专利标题(中): 在IGCC安装中维持燃料Wobbe指数的方法
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申请号: US11248387申请日: 2005-10-12
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公开(公告)号: US20070082306A1公开(公告)日: 2007-04-12
- 发明人: Raymond Drnevich , Troy Raybold
- 申请人: Raymond Drnevich , Troy Raybold
- 主分类号: F23N1/02
- IPC分类号: F23N1/02
摘要:
A method of reducing a modified Wobbe index of a fuel stream fed to diffusion combustors of a gas turbine that is used in connection with an IGCC installation in which a nitrogen stream is fed into the head ends of the combustor of NOx control and the modified Wobbe index of the fuel stream has been increased in an amount that is greater than at least about 10 percent of a design Wobbe index for the fuel to be fed to the gas turbine. The reason for the increase is the conversion of the carbon monoxide within the fuel stream to hydrogen and carbon dioxide by a water gas shift reaction and subsequent removal of the carbon dioxide. The nitrogen stream is maintained at the same level both with and without conversion and subsequent removal of carbon atoms. The nitrogen stream is divided to subsidiary streams that are respectively fed into the head end of the combustors and that are mixed with a fuel to lower the modified Wobbe index to acceptable levels for the gas turbine.