发明授权
- 专利标题: Process temperature control in oxy/fuel combustion system
- 专利标题(中): 氧/燃料燃烧系统中的过程温度控制
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申请号: US12238731申请日: 2008-09-26
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公开(公告)号: US08555796B2公开(公告)日: 2013-10-15
- 发明人: Mark Daniel D'Agostini
- 申请人: Mark Daniel D'Agostini
- 申请人地址: US PA Allentown
- 专利权人: Air Products and Chemicals, Inc.
- 当前专利权人: Air Products and Chemicals, Inc.
- 当前专利权人地址: US PA Allentown
- 代理商 Michael K. Boyer; Larry S. Zelson
- 主分类号: F23N5/02
- IPC分类号: F23N5/02 ; F23B80/00
摘要:
An oxy/fuel combustion system having a furnace arranged and disposed to combust a fuel to form a combustion fluid. The system further includes a convective section having at least one heat exchanger arranged and disposed to exchange heat between the combustion fluid and steam for use in a steam turbine. A flue gas recycle is arranged and disposed to recycle at least a portion of the combustion fluid as a recycled flue gas, the flue gas recycle having at least two expellant locations downstream of a primary combustion zone. The system includes a flow control mechanism that provides controlled amounts of the recycled flue gas to the at least two expellant locations to control temperature of the steam.