Analysis on Influence Factors of Greenhouse Gas Emissions of Magnesium Production Process

Abstract:

Magnesium is a promising lightweight and green metallic engineering material, but the environmental impact of primary magnesium production stage, especially greenhouse gas (GHG) emissions cannot be ignored. In this study, the life cycle energy consumption and GHG emissions caused by the production of primary magnesium in the years of 2003-2013 in China were calculated; the factor decomposition was conducted to analyze the GHG emissions of magnesium production process by using logarithmic mean Divisia index method (LMDI), including energy GHG emission factors, energy structure, energy consumption per ton of primary magnesium, production, emissions per unit of dolomite and ferrosilicon, and dolomite and ferrosilicon consumptions per ton of primary magnesium. The results showed that GHG emissions of primary magnesium production increased 260.29*10⁴ t CO_2eq in total from 2003 to 2013. The variety magnesium production contributed the biggest part of GHG emissions, accounting for 418.17%. The energy structure took second place on the contribution of GHG emissions, accounting for-161.49%. The nest part was energy consumption per ton of primary magnesium, accounting for-138.97%. While, the contribution of energy GHG emission factors, emissions per unit of dolomite and ferrosilicon, and dolomite and ferrosilicon consumptions per ton of primary magnesium was relatively small, which were 0.88%, 0.00% -2.72% -4.73% and-11.13%, respectively. Thus, it is the key methods to reduce GHG emissions by optimizing the energy structure and decreasing the energy consumption.

• Periodical: Materials Science Forum (Volume 847)
• Pages: 321-327
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.847.321
• Online since: March 2016
• Authors: Yan Cui Cao, Feng Gao, Zhi Hong Wang, Xian Zheng Gong, Xiao Qing Li
• Keywords: Greenhouse Gas Emission, Logarithmic Mean Divisia Index Method, Primary Magnesium

References

[1] H. X. Liu, Y. N. Dai, Y. Tian, T. Qu, Q. C. Yu. The environmental issues of the magnesium produced in China using the Pidgeon process. Light Metal, (2010) 43-48.

[2] S. Ehrenberger, H.E. Friedrich, Assessment of greenhouse gas emissions of magnesium use in transport. Light Metal Age, 72 (2014) 50-53.

[3] R. X. Guo, Current status and prospect of magnesium resources and magnesium chemical materials. Inorganic Chemicals Industry, 44 (2012) 1-7.

[4] J. H. Yin, The development and the prospects of world magnesium industry. World nonferrous Metals, (2005) 58-66.

[5] S Ramakrishnan, P Koltun. Global warming impact of the magnesium produced in China using the Pidgeon process. Resources Conservation and Recycling, 24 (2004) 49–64.

DOI: 10.1016/j.resconrec.2004.02.003

[6] Feng Gao, Zuoren Nie, Zhihong Wang, Xianzheng Gong and Tieyong Zuo, Life cycle assessment of primary magnesium production using the Pidgeon process in China. Int J Life Cycle Assess, 2009, 14(5): 480-489.

DOI: 10.1007/s11367-009-0101-9

[7] Z. Y. GAO, Y. Wang, The decomposition analysis of change of energy consumption for production in China. Statistical Research, 24 (2007) 52-57.

[8] Q. Zhu, X. Z. Peng, Z. M. Lu, Factors decomposition and empirical analysis of variations in energy carbon emission in China. Resources Science, 31 (2009) 2072-(2079).

[9] J.W. Sun, R. Q. Zhao, Research on carbon emission estimation and factor decomposition of China from 1995 to 2005. Journal of Natural Resources, 25 (2010) 1284-1294.

[10] Boyd G A, McDonald J F, Ross M, Hanson D A, Separating the changing composition of US manufacturing production from energy efficiency improvements: a Divisia index approach. The Energy Journal, 2 (1987) 77-96.

DOI: 10.5547/issn0195-6574-ej-vol8-no2-6

[11] Ang BW, Choi KH. Decomposition of aggregate energy and gas emission intensities for industry: a refined Divisia index method. The Energy Journal. 3 (1997) 59-73.

DOI: 10.5547/issn0195-6574-ej-vol18-no3-3

[12] Liu Lan-Cui, Fan Ying, Wu Gang etc. Using LMDI method to analyze the change of China's industrial CO2 emissions from final fuel use：An empiric alanalysis. Energy Policy, 35 (2007) 5892-5900.

DOI: 10.1016/j.enpol.2007.07.010

[13] J. J. Cai, Z. Ye, W. Q. Sun. Analysis of influence factors on energy consumption in Chinese steel industry from 1995 to 2010. Journal of Northeastern University (Natural Science), 34 (2013) 1438-1441.

[14] IPCC 2006, 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the NationalGreenhouse Gas Inventories Programme, Eggleston H.S., Buendia L., Miwa K., Ngara T. and Tanabe K. (eds). Published: IGES, Japan.

[15] China nonferrous metals industry yearbook editing committee, The Yearbook of Nonferrous Metals Industry of China. Beijing: China national nonferrous metals industry association, 2004-(2013).

DOI: 10.1016/s1003-6326(13)62800-9

[16] Xianghua Di, Zuoren Nie, Tieyong Zuo, Life Cycle Inventory for electricity industry in China, The International Journal of Life Cycle Assessment, (2006).

DOI: 10.1007/bf02977598

[17] http: /www. wri. org. cn/files/wri/GHG-Protocol-Tool-for-Energy-Consumption-in-China-V2%201. pdf.

[18] H. M. Zhou, Life cycle assessment on iron and steel processes, Beijing University of Technology PhD thesis, (2001).