高级再燃气体脱硝特性的研究  

Study on NO reduction by advanced gas reburning

作　　者：高攀[1] 路春美[1] 甄天雷[1] 刘磊[2] 

机构地区：[1]山东大学能源与动力工程学院,山东济南250061 [2]莱芜钢铁股份有限公司,山东莱芜271104

出　　处：《燃料化学学报》2007年第5期632-636,共5页Journal of Fuel Chemistry and Technology

基　　金：山东省自然科学基金(Z2006F04)

摘　　要：Advanced reburning(AR) is one of the novel NOx control technologies.Some primary parameters of AR have been investigated by the experiments,NOx reduction performance of two fuels is analyzed contrastively.Results show that the NO removal efficiency increases quickly with the molar ratio of gas to NO and the residence time(within 0.34 s) during reburning process when the temperature is 1 050 ℃.There exists an optimum reburning stoichiometric ratio(0.7～0.8) and a molar ratio of NH3/NO(2.0) for AR process.The optimum ratio of natural gas/NO is 3.63 at the temperature of 1 200 ℃.The optimum reburning temperatures of natural gas and liquefied petroleum gas are about 1 250 ℃ and 1 050 ℃,respectively.When the residence time exceeds 0.34 s,the NO reduction efficiency of advanced natural gas reburning rises slowly,but that of advanced liquefied petroleum gas reburning increases rapidly.Advanced reburning(AR) is one of the novel NOx control technologies.Some primary parameters of AR have been investigated by the experiments,NOx reduction performance of two fuels is analyzed contrastively.Results show that the NO removal efficiency increases quickly with the molar ratio of gas to NO and the residence time(within 0.34 s) during reburning process when the temperature is 1 050 ℃.There exists an optimum reburning stoichiometric ratio(0.7～0.8) and a molar ratio of NH3/NO(2.0) for AR process.The optimum ratio of natural gas/NO is 3.63 at the temperature of 1 200 ℃.The optimum reburning temperatures of natural gas and liquefied petroleum gas are about 1 250 ℃ and 1 050 ℃,respectively.When the residence time exceeds 0.34 s,the NO reduction efficiency of advanced natural gas reburning rises slowly,but that of advanced liquefied petroleum gas reburning increases rapidly.

关 键 词：高级再燃 NOx 脱硝效率 影响因素 

分 类 号：TK16[动力工程及工程热物理—热能工程] TK411+.51