CAJ | 학술논문

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)。
침대탄포집계통대연매궤조열경제성방면적영향，이600MW초림계연매궤조위연구대상，연구료연소후탄포집적재생능모，제출료기우탄포집적태양능보조연매궤조열력계통집성방안，천술료해집성계통탄포집적공작원리화흡수궤리，건립료집성계통열경제성평개지표。이용계통령민도분석법，계산료탄포집솔대집성계통열경제성적영향，병장상관수거회제성곡선도가이대비분석。결과표명：당을순알용액농도위30%、CO2포집솔위85%、당지일조체도최가복사강도500W/m2시，해태양능집성계통적열효솔위43.604%，차시태양능-연매궤조탄포집전참적발전성본위0.5606￥/(kW·h)，CO2적감배성본위0.5557￥/(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·h),with 0.5557￥/(kgCO2) of the mitigation costs.