IGCC系统减排CO_2的性能比较和分析  

PERFORMANCE COMPARISON AND ANALYSIS OF IGCC WITH CO_2 EMISSION REDUCTION

作　　者：范江[1] 刘姝玮[1] 马素霞[1] 

机构地区：[1]太原理工大学电气与动力工程学院,太原副教授硕士生导师030024

出　　处：《煤炭转化》2012年第4期80-83,共4页Coal Conversion

基　　金：国家高技术研究发展计划(863)项目(2009AA05Z216)

摘　　要：分别对IGCC系统、IGCC燃烧前捕捉CO2系统以及CO2循环利用的纯氧燃烧系统的产气率和能耗进行了计算.结果表明,当煤种和气化条件不变时,燃烧前捕捉CO2会使IGCC系统的燃气轮机和蒸汽轮机做功量减少,热效率降低5.851%.当减排86.55%的CO2时,系统热效率为42%,有利于IGCC清洁高效运行.若采用CO2循环的纯氧燃烧技术,其系统热效率比未循环CO2的燃烧前捕捉系统低,但可以实现CO2的零排放.Gas producing ratio and energy consumption rate were computed respectively in the IGCC system, the IGCC system with pre-combustion CO2 capturing and that with oxy- combustion CO2 recycling. It was showed from the computed results that when coal and the gasi- fication were in the same condition, the steam and gas turbine＇s work declined and the IGCC sys- tem thermal efficiency reduced by 5. 851%, which was due to the capturing of CO2 gas. When CO2reduction rate was 86.55%, the thermal efficiency was 42% and conducive to the operating of IGCC efficiently and cleanly. If adopting the CO2 recycling combustion technology, the system thermal efficiency was lower than that of the pre-combustion CO2 capturing system, but in which zero CO2 emission could be achieved.

关 键 词：IGCC CO2减排 系统热效率 

分 类 号：TM611.3[电气工程—电力系统及自动化]