基于北京市2014年煤炭消费情况,采用等效能值法具体量化了北京市及各行业实施以电代煤所能带来SO2、NOx与CO2减排量,同时在此基础上,分析了同等替代比例下各行业实施以电代煤的减排贡献率.结果表明:实施以电代煤可以极大降低SO2、NOx与CO2的排放量,电能每替代100万t的煤炭,SO2、NOx与CO2减排量分别为5.61×103t、0.42×103t、0.57×106t;城镇居民生活消费实施以电代煤对SO2减排起主要作用,贡献率达到53.11%,而NOx与CO2减排贡献中,工业占据主导地位,贡献率分别为94.06%和68.36%;具体煤炭消费行业的减排贡献率与各行业煤炭消费总量有关,非金属矿物制造业实施以电代煤可取得较大的工业行业减排效益,而房地产业则对服务业的减排贡献较为突出.%Based on the analysis of coal consumption in Beijing in 2014, the equivalent energy value method was applied to specifically quantifies the reduced emissions of SO2, NOx and CO2 resulting from the measure of electricity in place of coal in Beijing and specific industry. Meanwhile, the reduction contribution rates of different industrial sectors were analyzed under the same substitute proportion. The results show the implementation of electricity in place of coal indeed reduces emission of SO2, NOx and CO2. The reduced emissions of three gases were 5.61×103t、0.42×103t、0.57×106t when 100t coal was substituted by electrial energy. For SO2, the implementation of electricity in place of coal in resident life plays a leading role and the corresponding contribution rate was 53.11%. However, for NOx and CO2, the industy occupies a leading position with contribute rates of 94.06% and 68.36%. The contribution rate of each industrial sector is associated with the corresponding coal consumption. The implementation of electricity in place of coal in Nonmetal Mineral Products and Real Estate would make prominent contribution to the reduction emission of SO2, NOx and CO2in industry and service industry.
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