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The Scientific World Journal
Volume 2013, Article ID 247035, 8 pages
http://dx.doi.org/10.1155/2013/247035
Review Article

Advances in Energy Conservation of China Steel Industry

State Environmental Protection Key Laboratory of Eco-Industry, Institute of Thermal and Environmental Engineering, Northeastern University, Shenyang, Liaoning 118019, China

Received 18 January 2013; Accepted 5 February 2013

Academic Editors: A. Greco, A. J. N. Khalifa, and A. Parlak

Copyright © 2013 Wenqiang Sun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The course, technical progresses, and achievements of energy conservation of China steel industry (CSI) during 1980–2010 were summarized. Then, the paper adopted e-p method to analyze the variation law and influencing factors of energy consumptions of large- and medium-scale steel plants within different stages. It is pointed out that energy consumption per ton of crude steel has been almost one half lower in these thirty years, with 60% as direct energy conservation owing to the change of process energy consumption and 40% as indirect energy conservation attributed to the adjustment of production structure. Next, the latest research progress of some key common technologies in CSI was introduced. Also, the downtrend of energy consumption per ton of crude steel and the potential energy conservation for CSI during 2011–2025 were forecasted. Finally, it is indicated that the key topic of the next 15 years’ research on the energy conservation of CSI is the synergistic operation of material flow and energy flow. It could be achieved by the comprehensive study on energy flow network optimization, such as production, allocation, utilization, recovery, reuse, and resource, according to the energy quantity, quality, and user demand following the first and second laws of thermodynamics.