摘要
分别从原料来源、工艺流程、占地、投资运行成本、运行安全等方面对液氨蒸发工艺、尿素热解、尿素水解制氨工艺及其特点进行了分析与对比。结果表明,液氨蒸发工艺的建设及运行成本均低于尿素制氨工艺;尿素制氨工艺的占地面积少,原料费较低;尿素水解制氨工艺的运行成本低于热解制氨工艺。同时,提出选择脱硝还原剂制备技术方案应考虑的因素及各工艺技术的发展趋势。
Three processes(liquid ammonia evaporation,urea pyrolysis,urea hydrolysis) to produce ammonia used as reductant in denitrification by selective catalytic reduction(SCR) method was compared on aspects such as raw material sources,technological process,land occupation,investment operating cost and running safety.Results show that,compared with ammonia production from urea,the liquid ammonia evaporation process has low construction and operation costs,while the urea methods can save the land occupation area and raw material cost.Running cost of urea hydrolysis process is lower than that of the pyrolysis process.Factors that should be considered in selecting the preparation programs of NOx reducing agent,as well as the development trends of each technology are both proposed.
出处
《热力发电》
CAS
北大核心
2013年第2期103-105,共3页
Thermal Power Generation
关键词
烟气脱硝
还原剂制备
液氨蒸发
尿素
热解
水解
flue gas denitrification
reducer preparation
liquid ammonia volatilization
urea
pyrolysis
hydrolysis
