火电厂脱硝尿素制氨工艺比选及应用进展  

Comparison and selection of ammonia production process in urea denitrifieation of thermal power plants

作　　者：胡剑利 陈雨帆 沈思言 黄永杰 潘乐刚 李文华 杨景焜 陈臻 HU Jian-li;CHEN Yu-fan;SHEN Si-yan;HUANG Yong-jie;PAN Le-gang;LI Wen-hua;YANG Jing-kun;CHEN Zhen(zheneng Wenzhou Power Generation Co.,Ltd,Wenzhou 325600,China;Zhejiang Provincial Key Laboratory of Energy Eifficiency and Pollution Control Technology for Thermal Power Generation,Hangzhou 311121,China;Zhejiang Energy Group R&D,Hangzhou 311121,China;Zhejiang Zheneng Taizhou Second Power Generation Co.Ltd.,Taizhou 317100,China)

机构地区：[1]浙江浙能温州发电有限公司,浙江温州325600 [2]浙江省火力发电高效节能与污染物控制技术研究重点实验室,浙江杭州311121 [3]浙江浙能技术研究院有限公司,浙江杭州311121 [4]浙江浙能台州第二发电有限责任公司,浙江台州317100

出　　处：《能源工程》2021年第4期43-47,53,共6页Energy Engineering

摘　　要：对尿素制氨工艺进行了研究,并对相关应用实例进行了调研。从反应机理、性能差异、应用现状等方面入手,分析并比选了火电厂脱硝尿素制氨工艺。研究表明,尿素水解与热解均有广泛的应用,并有各自的优缺点;稀释风来源对空预器差压上升速率的影响要大于尿素分解方式;尿素制氨工艺宜采用冷自然风或冷一次风作为稀释风风源。In this paper,we study the urea ammonia production process and investigate the related application exam-ples.we analyze and compare the ammonia production process of thermal power plants denitrification system in the as-pects of reaction mechanism,performance difference,application and so on.Studies have shown that urea hydrolysis and pyrolysis are widely used with their respective advantages and disadvantages.Dilution air source has more effect than urea decomposition mode on resistance rise rate of air preheater.Cold natural or primary air should be used as di-lution air in urea ammonia production process.

关 键 词：火电厂脱硝 尿素水解 尿素热解 性能差异表 空预器差压上升速率 

分 类 号：X773[环境科学与工程—环境工程]