针对13种可能的洁净煤高效发电技术路线,分析对比各技术路线的发电效率、经济性、污染物排放等指标,并建立了能源可持续发展综合指标(energy sustainable development compositive index,ESDCI)。分析不同的指标权重对ESDCI的影响;并基于我国2030,2050年能源利用的不同情景,分析、预测不同发电技术的ESDCI变化趋势。研究结果指出:2030,2050年超超临界燃煤发电机组(ultra-supercritical pulverized coal power plant,USCPC)是电力工业最主要的高效洁净利用技术;如果采用二氧化碳捕集技术(carbon capture and storage,CCS)技术,多联产+CCS、USCPC+CCS以及整体煤气化联合循环发电系统(integrated gasification combined cycle,IGCC)+CCS是较好的选择。研究成果为确定我国煤炭高效洁净化利用的技术途径提供了参考。
A wire-mesh reactor capable of heating samples at a given heating-rate (1—1000 K·s-1) was used to investigate the effect of heating-rate on Ca-based absorbent performance of CO2 capture.BET method was used to analyze the morphology of the produced CaO,and the capabilities of the absorbent were compared.It was found that CaO calcined at a higher heating-rate had more appropriate pore distribution for CO2 capture,and the capability of CaO calcined at 1000 K·s-1 was 15% higher than that calcined at 1 K·s-1 determined by TGA.
