中国典型钢铁联合企业的碳足迹分析

doi:10.13228/j.boyuan.issn0449-749x.20140123

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Abstract By definition of ecological footprint，carbon footprint is expressed in forest area. And the MFA-IO model was established to analyze carbon footprint in the whole process of iron and steel enterprise. Carbon footprint of per ton steel，was calculated in five typical iron and steel enterprises. Results show that carbon footprint of iron-making is largest accounting for 70% in iron and steel enterprises. And coke and coal are large consumption in iron-making，coking and sintering process are less than iron-making. Analyzing the type of gas，carbon dioxide is a major contributor of carbon footprint in the whole production process. In the five cases，the contribution of CO2 values was accounted for about 70%. And the average carbon footprint of per ton steel products was 0.325 hm2/t. Among them，the Nanjing Steel carbon footprint of per ton steel products was up to 0.353 hm2/t，while Baosteel Branch’s smallest was only 0.303 hm2/t. The differences are mainly due to geographical differences，the distribution of energy around the enterprise and production equipment and technology. For overall analysis，the total carbon footprint was 19 895 800 hm2，the sum of the five provinces of forest area. This research shows that for only these five cases of iron and steel enterprises，the total GHG exceeded the purification capacity of the forest in the five provinces. Therefore，the study of China’s steel industry to reduce the carbon footprint is very necessary and urgent.

Key words： steel industry carbon footprint MFA-IO coupled model forest area industrial ecology

Received: 04 March 2014 Published: 18 March 2015

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	GAO Cheng-Kang
	CHEN Sha

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GAO Cheng-Kang,CHEN Sha. Carbon footprint analysis of typical chinese iron and steel enterprises[J]. Iron and Steel, 2015, 50(3): 1-8.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20140123 OR http://www.chinamet.cn/Jweb_gt/EN/Y2015/V50/I3/1

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