基于热经济学的O_2/CO_2循环燃烧系统和MEA吸附系统的技术-经济评价  

TECHNO-ECONOMIC EVALUATION OF O_2/CO_2 RECYCLE COMBUSTION SYSTEM AND MEA SCRUBBING SYSTEM BASED ON THERMOECONOMICS

作　　者：熊杰[1] 赵海波[1] 柳朝晖[1] 郑楚光[1] 陈猛[1] 

机构地区：[1]华中科技大学煤燃烧国家重点实验室,湖北武汉430074

出　　处：《工程热物理学报》2008年第10期1625-1629,共5页Journal of Engineering Thermophysics

基　　金：国家重点基础研究专项经费项目(No.2006CB705807);国家高技术基金项目(No.2005AA529330)

摘　　要：化石燃料(特别是煤炭)燃烧所产生的CO_2已经越来越受到关注,O_2/CO_2循环燃烧方式和MEA(mono ethanol amine,单乙醇胺)吸附系统是两种重要的具有CO_2减排特征的能量转换系统.本文以某电厂300 MW燃煤机组为基础,以过程仿真技术为平台,利用热经济学成本分析的方法对该机组的两种CO_2减排方式(O_2/CO_2循环燃烧方式和MEA吸附方式)进行了技术-经济评价,并比较它们的经济性能.系统评价指标选定为系统的发电成本(cost of electricity)和CO_2减排成本(CO_2 avoidance costs).分析结果显示:无论是哪一个指标,O_2/CO_2循环燃烧系统都要比MEA吸附系统小一些,O_2/CO_2循环燃烧系统更经济、更可取.The attention about CO2 produced from the combustion of fossil fuel （especially coal） has been more and more, O2/CO2 recycle combustion system and MEA scrubbing system were two kinds of important energy conversion systems which can control the CO2 emission. The base research system was oriented to a 300 MW pulverized coal fired power plant, the process simulation method was choosed as platform, and The thchno-economic evaluation based on thermoeconomic cost analysis of the above two systems has been finished to compare their economic performance. The cost of electricity and the CO2 avoidance cost were chosen as the evaluation indexes. The results show that the cost of electricity and the CO2 avoidance cost of O2/CO2 recycle combustion system are all smaller than that of MEA scrubbing system, the O2/CO2 reclycle combustion one is more economic.

关 键 词：热经济学 O2/CO2循环燃烧 MEA吸附 CO2减排 技术-经济评价 

分 类 号：TK123[动力工程及工程热物理—工程热物理]