中国钢铁行业低碳模式及其相关政策分析

基于全过程分析和情景分析建立耦合模型,从中国钢铁工业的发展模式和政策角度,结合中国当前成熟的节能减碳技术,分析中国钢铁工业CO2的低碳发展模式和相关政策,并探讨未来中国钢铁工业CO2的最优减排量和优化技术路线。分析结果表明:若控制好经济发展和钢产量速度,实施提出的减碳技术路线,与2010年相比到2020年中国钢铁工业在焦化、烧结、炼铁、转炉、电炉和轧钢工序单位产品可减少CO2排放量分别为77.33、4.4、7.13、54.36、116.2和42kg/t;若同时保证相关末端处理技术的实施,到2020年吨钢CO2排放量为1.49t。可见,建立中国钢铁工业的低碳发展模式,主要在于促进相关成熟技术利用的政策调整,该发展模式可为中国钢铁行业的持续发展提供一定的理论依据。

Low-carbon model and its relevant policy of iron and steel industry in China

From China’s iron and steel industry development and policy perspective, based on the coupling method of the whole process of analysis and scenario analysis, China’s steel industry low-carbon development model the related policies were analyzed, combined with China’s current carbon reduction technologies mature; moreover, the future of China’s steel industry CO2 emission reductions and the optimal route optimization techniques were discussed. Results show that up to 2020 on the condition that optimal techniques routes or scenarios would come true, coking, sintering, iron making, converter, electric furnace and steel rolling process can reduce the amount of CO2 emissions for 77.33, 4.4, 7.13, 54.36, 116.2 and 42kg/t, compared with 2010 respectively; if integrated considering various end-processing-technology implementation, to 2020 carbon dioxide emissions would be 1.49 t only. These also indicate that currently in order to reduce CO2 emissions of steel industry in China, the key task is to adjust and construct policy to promote energy-saving and carbon-reducing technology implement.