中文摘要：

对3类典型煤基动力系统,即供电功率为300、1000 MW的燃煤动力系统、300 MW煤气化联合循环动力系统与300 MW煤基化工动力多联产系统,采取及未采取CO2减排措施的8种不同工艺过程进行了能源、环境、经济（3E）性能的分析和综合评价。结果表明：各系统3E性能主要与产品生产阶段相关。联产系统的3E性能整体优于单产系统,未回收CO2与CO2循环的双气头多联产系统的当量供电效率为35.78%和37.71%,对应供电成本为0.182和0.179 RMB/（kW h）,单位供电量CO2排放量为0.712和0.641kg/（kW h）,以1000 MW煤粉炉电站为参比系统,对应CO2的减排成本为0.67和0.53 RMB/kg,且对碳税变化不敏感。联产系统中,CO2循环的系统的3E性能总体优于未回收CO2的系统,但其经济性受甲醇市场价格的影响显著。

英文摘要：

Three types of typical coal-based power system, pulverized coal-fired boiler system, integrated gasification combined cycle system and dual-gas polygeneration system, were evaluated to compare the CO2 recycle impact on the systems in terms of energy consumption and efficiency, CO2 emission and economic cost （3E）. The results show that the key point of 3E performance of these systems depends on the products selection particular in the systems with or without CO2 recycle utilization. 3E index of the D-PL systems is better than that of the stand-alone plants. The equivalent power supply efficiency of D-PL systems without and with CO2 recycling are 35.78% and 37.71% respectively. Power supply costs are 0.182 RMB/（kW.h） and 0.179 RMB/（kW.h）, and CO2 emission of per power supply unit are 0.712 kg/（kW.h） and 0.641 kg/（kW.h）. The costs of CO2 reduction are -0.67 RMB/kg and -0.53 RMB/kg when the PC1000 MW is taken as the reference. The D-PL systems are not sensitive to the carbon tax changes. 3E index of the D-PL-CR system is better than that of the D-PL system in the polygeneration systems, but the economy index of which is influenced significant by methanol prices.