Variation Trend and Driving Factors of Greenhouse Gas Emissions from Chinese Magnesium Production

被引：8

作者：

Gao, Feng ^{[1
]}

Liu, Yu ^{[1
]}

Nie, Zuo-Ren ^{[1
]}

Gong, Xianzheng ^{[1
]}

Wang, Zhihong ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Ctr Natl Mat Life Cycle Assessment, Beijing, Peoples R China

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2015年 / 49卷 / 21期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

INDEX DECOMPOSITION ANALYSIS; ENERGY USE; STEEL; SUBSTITUTION; BENEFITS; IMPACT; IRON;

D O I：

10.1021/acs.est.5b01860

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

As the largest magnesium producer in the world, China is facing a great challenge of greenhouse gas (GHG) emissions reduction. In this paper, the variation trend and driving factors of GHG emissions from Chinese magnesium production were evaluated and the measures of technology and policy for effectively mitigating GHG emissions were provided. First, the energy-related and process-oriented GHG inventory is compiled for magnesium production in China. Then, the driving forces for the changes of the energy-related emission were analyzed by the method of Logarithmic Mean Divisia Index (LMDI) decomposition. Results demonstrated that Chinese magnesium output from 2003 to 2013 increased by 125%, whereas GHG emissions only increased by 16%. The emissions caused by the fuels consumption decline most significantly (from 28.4 to 6.6 t CO(2)eq/t Mg) among all the emission sources. The energy intensity and the energy structure were the main offsetting factors for the increase of GHG emissions, while the scale of production and the international market demand were the main contributors for the total increase. Considering the improvement of technology application and more stringent policy measures, the annual GHG emissions from Chinese primary magnesium production will be controlled within 22 million tons by 2020.

引用

页码：12662 / 12669

页数：8

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