基于水足迹理论的煤制油产业布局评价

发布时间：2018-11-16 21:25

【摘要】：煤制油是我国应对石油危机的重要途径之一,但其高耗水的特点使其备受争议。利用水足迹理论对全国五大煤炭基地2015年规划的煤制油产业进行了蓝水足迹和灰水足迹的测算,分析了煤制油产业对这些区域水资源的耗用情况及冲击程度。结果显示,神东、晋东和新疆伊犁3个基地的煤制油产业蓝水足迹超过了1亿t、灰水足迹超过了3亿t,其中神东地区作为最大的煤制油产地两项数值分别达到1.9亿t和4.1亿t与当地水资源总量对比,宁东地区煤制油耗水冲击最大,占当地水资源总量的28.2%;新疆伊犁地区比例最小,为0.36%。通过对这5个煤炭基地以区域为尺度的水足迹结构分析和评价比较,得出了两种煤制油工艺的水资源消耗差异,并且为煤制油产业在五大基地的合理布局给出了依据,与此同时为接下来煤制油产业的技术革新和流程优化也提出了相应的建议。
[Abstract]:Oil production from coal is one of the important ways to deal with the oil crisis in China, but its high water consumption makes it controversial. Based on the water footprint theory, the blue water footprint and ash water footprint of the five major coal bases in 2015 are calculated, and the consumption and impact degree of the coal oil industry to these regions are analyzed. The results show that the blue water footprint and ash water footprint of the three bases in Shendong, Jindong and Yili of Xinjiang are over 100 million tons and 300 million tons, respectively. As the largest producing area of coal oil, Shendong area has two values of 190 million t and 410 million t, respectively, compared with the total amount of local water resources. The impact of water consumption of coal to oil production in Ningdong area is the greatest, accounting for 28.2t of the total local water resources. The proportion of Yili area in Xinjiang is the smallest, 0.36. Based on the analysis and evaluation of the water footprint structure of the five coal bases on a regional scale, the differences in water resources consumption between the two coal production processes are obtained, and the basis for the rational distribution of the coal oil production industry in the five major bases is given. At the same time, the technical innovation and process optimization of coal oil industry are also proposed.
【作者单位】：清华大学化学工程系;清华大学环境学院国家环境保护生态工业重点实验室;
【基金】：水体污染控制与治理重大专项(2012ZX07203-004,2012ZX07301-005)
【分类号】：F426.22;TE665

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