title: Variation Trend and Driving Factors of Greenhouse Gas Emissions from Chinese Magnesium Production.
abstract: 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 CO2eq/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.
authors.affiliation: Center of National Materials Life Cycle Assessment, College of Materials Science and Engineering, Beijing University of Technology , No. 100 Pingleyuan, Beijing, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.affiliation: Center of National Materials Life Cycle Assessment, College of Materials Science and Engineering, Beijing University of Technology , No. 100 Pingleyuan, Beijing, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Center of National Materials Life Cycle Assessment, College of Materials Science and Engineering, Beijing University of Technology , No. 100 Pingleyuan, Beijing, China.
authors.forename: Zuo-Ren
authors.initials: ZR
authors.lastname: Nie
authors.affiliation: Center of National Materials Life Cycle Assessment, College of Materials Science and Engineering, Beijing University of Technology , No. 100 Pingleyuan, Beijing, China.
authors.forename: Xianzheng
authors.initials: X
authors.lastname: Gong
authors.affiliation: Center of National Materials Life Cycle Assessment, College of Materials Science and Engineering, Beijing University of Technology , No. 100 Pingleyuan, Beijing, China.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Wang
mesh_terms: D002245:Carbon Dioxide / Q000032:analysis*; D002617:Chemical Industry / Q000379:methods* / Q000706:statistics & numerical data; D002681:China; D017752:Greenhouse Effect; D008274:Magnesium
chemical_list: D002245:Carbon Dioxide; D008274:Magnesium