中国水泥熟料排放系数差异性及区域减排策略选择

发布时间：2018-03-07 13:06

本文选题：水泥熟料　切入点：排放系数　出处：《资源科学》2017年12期 　论文类型：期刊论文

【摘要】：水泥熟料是主要的CO_2排放源,其排放系数受原料种类和品质、生产工艺、生产规模等多种因素的影响。分析中国各地区熟料排放的差异性、减排潜力和策略选择,可以为区域降低熟料排放的方法和政策选择提供决策支持。本文以全国22省市中182条新型干法生产线和75条立窑生产线为样本,对中国水泥熟料排放系数差异性进行了分析,结论认为:(1)生产工艺的排放差异:立窑熟料排放系数高于新型干法;(2)生产规模的差异:随着生产规模的增加,燃料排放、电力排放呈现降低的趋势,而工艺排放则不受此影响;(3)熟料排放系数呈现从东部沿海向西部内陆逐渐增加的态势,从熟料排放系数构成来看,熟料高MgO含量将导致高的工艺排放,原料替代减排主要集中在钢铁和磷生产集中的华北和西南地区;高寒区域和西南地区也是高能源强度和高燃料排放的区域。论文进一步分析了工艺替代、规模生产和原料替代三种方式在调研省区的减排潜力,根据各种方法减排量所占份额,将驱动区域减排的方式选择归纳为单因素、双因素和均衡发展三种类型。文章认为调研区域应根据三种方式的份额,有目的地选择减排方式和设计相应的减排政策。
[Abstract]:Cement clinker is the main CO_2 emission source, and its emission coefficient is affected by various factors, such as the type and quality of raw material, production process, production scale, etc. The differences of clinker emissions, the potential of emission reduction and the selection of strategies are analyzed. In this paper, 182 new dry process production lines and 75 shaft kiln production lines in 22 provinces and cities of China are taken as samples to analyze the difference of cement clinker discharge coefficient in China. The conclusions are as follows: (1) the difference of production process emissions: the discharge coefficient of clinker in shaft kiln is higher than that of the new dry process (2) the scale of production is different: with the increase of production scale, the emission of fuel and electric power is decreasing. However, the discharge coefficient of clinker increased gradually from the east coast to the inland of the west. According to the composition of the clinker discharge coefficient, the high MgO content of clinker will lead to high process discharge. The emission reduction of feedstock substitution is mainly concentrated in North and Southwest China, where iron and steel and phosphorus production are concentrated; the high cold region and southwest region are also high energy intensity and high fuel emission regions. According to the share of emission reduction amount of various methods, the way of driving regional emission reduction is summed up as a single factor according to the scale production and feedstock substitution in the study of the potential of emission reduction in the provinces and regions. The paper points out that the research area should choose the emission reduction mode and design the corresponding emission reduction policy according to the share of the three ways.
【作者单位】：中国地质科学院矿产资源研究所;中国科学院地理科学与资源研究所;国土资源部成矿作用与资源评价重点实验室;中国地质科学院全球矿产资源战略研究中心;中国科学院大学;
【基金】：科技部国家重点研发计划(2016YFA0602802) 国家自然科学基金青年项目(41501590;41501604)
【分类号】：F426.71;X322

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