贫燃再燃技术在管式加热炉上的应用前景  

Application Prospect of Fuel-lean Reburning Technology in Tube Furnace

作　　者：钱坚民 韩顺连[2] 刘波[3] 

机构地区：[1]上海石化统谊设备检测有限公司,上海200540 [2]泰州机电高等职业技术学校,江苏泰州225300 [3]华东理工大学机械与动力工程学院,上海200237

出　　处：《石油化工设备》2013年第5期50-54,共5页Petro-Chemical Equipment

基　　金：中国石油化工股份有限公司资助项目(312016)

摘　　要：介绍了再燃、贫燃再燃脱硝技术以及再燃脱硝技术NOx的还原机理,分析了再燃比、再燃区温度、当量比和停留时间等参数对再燃脱硝效率的影响。结合管式加热炉结构和管内介质的特点,指出在不增加炉膛高度的情况下,应该充分利用炉内烟气回流,实现贫燃再燃脱硝技术,有效降低NOx排放。Reburning technology, fuel-lean reburning technology and mechanism of NOx reduc- tion in reburning combustion were reviewed. The study also analyzed effect of several parameters such as mass ratio of reburn fuel to total fuel, rehurning region temperature, equivalence ratio, residence time on reburning De-NOx efficiency. Taking into account the characteristics such as fluid in the tube and structure of petrochemical tube furnace, reburning or fuel-lean reburning DeNOx technology could be applied to petrochemical tube furnace without increasing the furnace height by taking full advantage of the recirculation in furnace.

关 键 词：管式加热炉 氮氧化物 贫燃再燃脱硝 应用前景 

分 类 号：TK223.23[动力工程及工程热物理—动力机械及工程]