中国钢铁行业“超低排放”向“减污降碳”过渡的技术思考

钢铁行业是我国国民经济的重要基础产业,但同时也是我国污-碳排放量最大的工业行业。2019年4月,五部委联合印发了《关于推进实施钢铁行业超低排放的意见》,率先引领了工业烟气超低排放,我国钢铁行业大气污染排放量实现了大幅削减。“十四五”以来,在“双碳”背景下,随着减污降碳的提出,现有超低排放技术所带来的碳增量效应问题逐渐凸显,又对钢铁行业带来了新的技术需求。本工作阐述了我国钢铁行业超低排放的技术进展,归纳了钢铁行业减污降碳发展方向,并提出了未来钢铁行业绿色低碳发展建议,为推动中国钢铁行业的高质量绿色发展提供参考。

Technical consideration on the transition from "ultra-low emissions" to "reduction of pollution and carbon emissions" in China's iron and steel industry

The iron and steel industry plays an important role in China's national economy, and it is also the largest pollution-carbon emission in China. In April 2019, five ministries and commissions jointly issued the "Opinions on Promoting the Implementation of Ultra-low Emissions in the Iron and Steel Industry", leading to a beginning of ultra-low emissions for industrial flue gas, and the air pollution emissions of China's steel industry achieved a significant reduction. Since the "14th Five-Year Plan", under the background of carbon peaking and carbon neutrality, with the proposal of pollution and carbon reduction, the problem of carbon incremental effect caused by ultra-low emission technologies has gradually become prominent, which has brought new technological needs to the steel industry. This work expounds the technological progress of ultra-low emissions in China's steel industry, summarizes the development direction of pollution and carbon reduction in the steel industry, and puts forward suggestions for the green and low-carbon development of the steel industry in the future, providing a reference for promoting the high-quality green development of China's steel industry.