Development and status of production energy consumption of China's iron and steel industry
HE Kun1, WANG Li1,2
1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. Beijing Engineering Research Centre of Energy Saving and Environmental Protection, Beijing 100083, China
Abstract：In the past decades, China's iron and steel industry has attached great importance to energy saving on the basis of ensuring the production growth. From 2006 to 2018, the comprehensive energy consumption per ton of steel decreased by 14.0%, and the comparable energy consumption per ton of steel decreased by 21.0% in key iron and steel enterprises in China. At present, the rapid growth stage of China's iron and steel industry has basically ended. In the transformation and upgrading stage, how to further reduce energy consumption of steel production is the focus of China's energy saving work. A comprehensive analysis on the energy utilization situation of China's steel enterprises is made, and the reasons for changes of energy consumption under the influence of multiple factors are studied, the actual energy utilization level of China's iron and steel enterprises is explained, and suggestions on energy saving development in the future are proposed. In addition, it is considered that, in the next few years, the increase of scrap ratio in China will gradually increase the difference of process structure among iron and steel enterprises, and the existing energy consumption indexes will only provide limited reference information. Therefore, it is necessary to study scientific and reasonable energy efficiency evaluation methods for iron and steel enterprises.
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2021, Vol. 31 
