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工程科学学报,第40卷,第7期:767-775,2018年7月 Chinese Journal of Engineering,Vol.40,No.7:767-775,July 2018 DOI:10.13374/j.issn2095-9389.2018.07.001;http://journals.ustb.edu.cn 钢铁行业烧结烟气多污染物协同净化技术研究进展 闫伯骏),邢奕12)四,路培2)区,苏伟),姜博),崔晓旭) 1)北京科技大学能源与环境工程学院,北京1000832)工业污染物资源化处理北京市重点实验室,北京100083 ☒通信作者,E-mail:xing bkd@163.com 摘要基于我国钢铁行业烧结烟气排放标准、排放特征和现行污染物控制技术,分析了国内外先进的多污染物协同控制技 术一活性炭(焦)吸附工艺、湿法脱硫除尘+选择性催化还原协同净化技术、循环流化床多组分污染物协同净化工艺、高性 能烧结废气净化工艺、新型密相半干法烟气集成治理技术等工艺的技术思路、特点和存在问题等,并针对钢铁行业的实际需 求对多污染物协同控制技术的发展提出了建议. 关键词钢铁行业:烧结烟气;多污染物:协同净化:脱硫:脱硝 分类号X551 A critical review on the research progress of multi-pollutant collaborative control technologies of sintering flue gas in the iron and steel industry YAN Bo-jun),XING Yi),LU Pei,SU Wei),JIANG Bo),CUI Xiao-xu) 1)School of Energy and Environmental Engineering.University of Science and Technology Beijing.Beijing 100083.China 2)Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:xing_bkd@163.com ABSTRACT The emission of flue gas in the iron and steel industry is high and contains a series of pollutants which that vary widely, especially in sintering process.With the depth of pollution control in China and the increasingly stringent emission standards,the flue gas pollutants of the steel industry require urgent management.At present,the sintering flue gas is mainly treated in the desulfurization and dust removal stages.Moreover,the measures for the management of nitrogen oxides and other pollutants have not yet been fully im- plemented in China's steel industry.Almost all the air pollution control techniques in the industry are aimed at single pollutant purifi- cation,where only few are targeted for multi-pollutant purification.Currently,the single pollutant treatment techniques can be divided into wet,semi-dry,and dry.Among them,the semi-dry and dry methods have gradually attracted much attention because of their high purification efficiency,compactness,and cost-effectiveness.Thus,they have become the main single pollutant treatment technologies for the sintering flue gas emission in the iron and steel industry.The present commonly used multi-pollutant removal technology is a sin- gle pollutant purification technique in series.With the increasingly stringent environmental standards in the steel industry,the original pollution control technologies and concepts have shown obvious deficiencies.This has seriously affected the development of China's iron and steel enterprises and smog management process.In addition,the tandem technology of single pollutant removal processes has the disadvantages of large area and high energy consumption.However,the simultaneous purification of multi-pollutants involves a simple process,short process flow,and low operation cost,and thus,it has become a research hotspot.Based on China's iron and steel indus- try sintering flue gas emission standards,emission characteristics,and current pollutant control technology,the technical ideas,char- acteristics and existing problems of multi-pollutant-coordinated control technology were analyzed,such as activated carbon adsorption process,IJS-FGD synergy pollutant purification process,MEROS technology,and a new type of dense semi-dry flue gas comprehen- 收稿日期:2017-07-04 基金项目:国家自然科学基金资助项目(U1560110):国家重点研发计划资助项目(2017Y℉C0210300):中央高校基本科研业务费专项资助项目工程科学学报,第 40 卷,第 7 期:767鄄鄄775,2018 年 7 月 Chinese Journal of Engineering, Vol. 40, No. 7: 767鄄鄄775, July 2018 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2018. 07. 001; http: / / journals. ustb. edu. cn 钢铁行业烧结烟气多污染物协同净化技术研究进展 闫伯骏1) , 邢 奕1,2) 苣 , 路 培1,2) 苣 , 苏 伟1) , 姜 博1) , 崔晓旭1) 1) 北京科技大学能源与环境工程学院, 北京 100083 2) 工业污染物资源化处理北京市重点实验室, 北京 100083 苣通信作者,E鄄mail: xing_bkd@ 163. com 摘 要 基于我国钢铁行业烧结烟气排放标准、排放特征和现行污染物控制技术,分析了国内外先进的多污染物协同控制技 术———活性炭(焦)吸附工艺、湿法脱硫除尘 + 选择性催化还原协同净化技术、循环流化床多组分污染物协同净化工艺、高性 能烧结废气净化工艺、新型密相半干法烟气集成治理技术等工艺的技术思路、特点和存在问题等,并针对钢铁行业的实际需 求对多污染物协同控制技术的发展提出了建议. 关键词 钢铁行业; 烧结烟气; 多污染物; 协同净化; 脱硫; 脱硝 分类号 X551 收稿日期: 2017鄄鄄07鄄鄄04 基金项目: 国家自然科学基金资助项目(U1560110);国家重点研发计划资助项目(2017YFC0210300);中央高校基本科研业务费专项资助项目 A critical review on the research progress of multi鄄pollutant collaborative control technologies of sintering flue gas in the iron and steel industry YAN Bo鄄jun 1) , XING Yi 1,2) 苣 , LU Pei 1,2) 苣 , SU Wei 1) , JIANG Bo 1) , CUI Xiao鄄xu 1) 1) School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China 2) Beijing Key Laboratory of Resource鄄oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, China 苣 Corresponding author, E鄄mail: xing_bkd@ 163. com ABSTRACT The emission of flue gas in the iron and steel industry is high and contains a series of pollutants which that vary widely, especially in sintering process. With the depth of pollution control in China and the increasingly stringent emission standards, the flue gas pollutants of the steel industry require urgent management. At present, the sintering flue gas is mainly treated in the desulfurization and dust removal stages. Moreover, the measures for the management of nitrogen oxides and other pollutants have not yet been fully im鄄 plemented in China爷s steel industry. Almost all the air pollution control techniques in the industry are aimed at single pollutant purifi鄄 cation, where only few are targeted for multi鄄pollutant purification. Currently, the single pollutant treatment techniques can be divided into wet, semi鄄dry, and dry. Among them, the semi鄄dry and dry methods have gradually attracted much attention because of their high purification efficiency, compactness, and cost鄄effectiveness. Thus, they have become the main single pollutant treatment technologies for the sintering flue gas emission in the iron and steel industry. The present commonly used multi鄄pollutant removal technology is a sin鄄 gle pollutant purification technique in series. With the increasingly stringent environmental standards in the steel industry, the original pollution control technologies and concepts have shown obvious deficiencies. This has seriously affected the development of China蒺s iron and steel enterprises and smog management process. In addition, the tandem technology of single pollutant removal processes has the disadvantages of large area and high energy consumption. However, the simultaneous purification of multi鄄pollutants involves a simple process, short process flow, and low operation cost, and thus, it has become a research hotspot. Based on China蒺s iron and steel indus鄄 try sintering flue gas emission standards, emission characteristics, and current pollutant control technology, the technical ideas, char鄄 acteristics and existing problems of multi鄄pollutant鄄coordinated control technology were analyzed, such as activated carbon adsorption process, LJS鄄鄄FGD synergy pollutant purification process, MEROS technology, and a new type of dense semi鄄dry flue gas comprehen鄄
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