摘要
富氧燃烧技术在CO2减排捕集方面的优势使其在近年来燃煤锅炉领域受到重点关注。本文从富氧燃烧对燃煤锅炉燃烧、传热和污染物排放特性的影响方面,对近年来燃煤锅炉富氧燃烧技术的理论研究进展进行阐述,并对近年来富氧燃烧在传统煤粉锅炉和循环流化床(CFB)锅炉两个工艺路线的应用进展进行了总结,认为基于氧/燃料双向分级的富氧燃烧着火、传热与污染抑制,基于加压富氧燃烧的CFB燃烧、传热和污染抑制,富氧燃烧工业示范装置自动控制,以及富氧燃烧系统集成优化是燃煤锅炉富氧燃烧技术的研究难点和重点。今后除了在成本最大的制氧技术上寻求技术突破以外,还需要在分级富氧燃烧、加压富氧燃烧以及系统集成优化等方面进行深入研究。
Due to its advantages in terms of CO2 reduction and capture,oxy-fuel combustion technology has attracted much attentions in the field of coal-fired boilers in recent years.The theoretical research progress of coalfired boiler oxy-fuel combustion technology in recent years was described in terms of the effects of oxy-fuel combustion on the combustion,heat transfer and pollutant emission characteristics of coal-fired boilers.The application progress of oxy-fuel combustion on the conventional coal-fired boilers and fluidized bed boilers in recent years was introduced.The ignition,heat transfer and pollution emission of oxygen/fuel staged oxy-fuel combustion,and the ignition,heat transfer and pollution emission of oxy-fuel combustion in a pressurized fluidized bed,and the automatic control of oxy-fuel demonstration project,and integration optimization of oxy-fuel combustion system should be the research difficulties and key points.In addition to seeking technological breakthroughs in the most costly oxygen production technology,further studies should be carried out on the staged oxy-fuel combustion,the pressurized oxy-fuel combustion and the system integration optimization.
作者
刘建华
LIU Jianhua(North China Electric Power Research Institute Co.,Ltd.,Beijing 100045,China)
出处
《热力发电》
CAS
北大核心
2020年第7期48-54,共7页
Thermal Power Generation
基金
国家重点研发计划项目(2018YFB0605304)。
关键词
富氧燃烧
燃煤锅炉
CFB锅炉
污染物控制
CO2捕集
清洁燃烧
理论研究
oxy-fuel combustion
coal-fired boiler
CFB boiler
pollution emission
CO2 capture
clean combustion
theoretical research
