基于碳捕集的太阳能-燃煤机组热力性能及技术经济分析  

Analysis thermodynamic performances and techno-economic of solar coal-fired units based on carbon capture

作　　者：赵文升[1] 白睿[1] 王继选[1] 韩中合[1] 王营营[1] 

机构地区：[1]电站设备状态监测与控制教育部重点实验室(华北电力大学),河北保定071003

出　　处：《化工进展》2014年第5期1338-1343,共6页Chemical Industry and Engineering Progress

基　　金：中央高校基本科研业务专项资金项目(13XS38)

摘　　要：针对碳捕集系统对燃煤机组热经济性方面的影响,以600MW超临界燃煤机组为研究对象,研究了燃烧后碳捕集的再生能耗,提出了基于碳捕集的太阳能辅助燃煤机组热力系统集成方案,阐述了该集成系统碳捕集的工作原理和吸收机理,建立了集成系统热经济性评价指标。利用系统灵敏度分析法,计算了碳捕集率对集成系统热经济性的影响,并将相关数据绘制成曲线图加以对比分析。结果表明:当乙醇胺溶液浓度为30%、CO2捕集率为85%、当地日照达到最佳辐射强度500W/m2时,该太阳能集成系统的热效率为43.604%,此时太阳能-燃煤机组碳捕集电站的发电成本为0.5606$/(kW·h),CO2的减排成本为0.5557$/(kgCO2)。This research investigated the regeneration energy consumption of carbon capture after combustion on a 600 MW supercritical coal-fired unit. Advanced solar thermal system of coal-fired unit based on carbon capture,the working principle and absorption mechanism of the carbon capture system were discussed. The evaluation index of economic for the integrated system was also set up. The economic effects of the carbon capture rate on the integrated system were calculated using the method of sensitivity analysis. The results showed that when the concentration of cholamine was 30%, carbon capture rate was 85%,meanwhile the local sunlight reached the best radiation intensity of 500 W/m2,thermal efficiency of the solar system was 43.604%and the generating cost of solar coal-fired units was 0.5606￥/（kW＆#183;h）,with 0.5557￥/（kgCO2） of the mitigation costs.

关 键 词：太阳能 碳捕集率 热经济性指标 发电成本 

分 类 号：TK284[动力工程及工程热物理—动力机械及工程] X5[环境科学与工程—环境工程]