Environment Impact Analysis of Four Different Cement Production Strategies

Abstract:

With development of the economic, China has been the largest cement production country in the world. But the big production of cement also causes serious ecological environmental problems. In this study, a cradle-to-gate life cycle assessment was carried out for four typical cement factories in China. The results indicated that new suspension preheater (NSP) process and power plant were mainly to blame for most emissions and environmental performances, and GWP is the most prominent category in the accumulative environmental performance of cement production. Any of the strategies for cleaner production of cement considered in this study, including larger production scale, cogeneration and using calcium carbide slag as secondary material, has effect in improving the environmental performance, but the final single result show that the utilization of calcium carbide slag is the best method, and it could reduce the environmental impact obviously.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 2023-2032
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.2023
• Online since: June 2017
• Authors: Yu Feng Zhang*, Bo Xue Sun, Yu Liu, Xian Zheng Gong, Zhi Hong Wang
• Keywords: Carbide Slag, Cement Production, Cogeneration, Life Cycle Assessment (LCA)

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