火电行业SO_3控制技术研究进展
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摘要
当前火电厂基本实现了超低排放,然而在SCR工艺脱硝过程中由于1%SCR催化剂氧化点位的存在,SO_3的排放问题一直无法得到足够的重视和有效的解决。在阐明火电行业SO_3产生及危害的基础上,系统分析比较了SO_3国内外控制技术现状及进展情况,并针对降低燃煤硫含量、碱性物质以及喷射位置的选择、SCR中SO_2氧化抑制以及多种脱硫技术协同防控等几方面对今后的研究提出了可行性建议。
The thermal power plants basically realize ultra-low emission in these years. However,due to the presence of 1%SCR catalyst oxidation point in the denitrification process of SCR,the problem of SO_3 emission has not get enough attention and effective resolve. This paper indicates generation and harm of SO_3 in thermal power plants,and analyzes the control measures employed both at home and abroad to inhibit SO_3. At the same time,some feasibility suggestions for future research are put forward,including reducing the sulfur content in the coal,and selecting alkalinity absorbent and the area to inject,and SO_2 oxidation inhibition in the SCR,and developing synergic control system for SO_3.
The thermal power plants basically realize ultra-low emission in these years. However,due to the presence of 1%SCR catalyst oxidation point in the denitrification process of SCR,the problem of SO_3 emission has not get enough attention and effective resolve. This paper indicates generation and harm of SO_3 in thermal power plants,and analyzes the control measures employed both at home and abroad to inhibit SO_3. At the same time,some feasibility suggestions for future research are put forward,including reducing the sulfur content in the coal,and selecting alkalinity absorbent and the area to inject,and SO_2 oxidation inhibition in the SCR,and developing synergic control system for SO_3.
引文
[1]胡冬,王海刚,郭婷婷,等.燃煤电厂烟气SO3控制技术的研究及进展[J].科学技术与工程,2015,15(35):92-99.
[2]刘宇,单广波,闫松,等.燃煤锅炉烟气中SO3的生成、危害及控制技术研究进展[J].环境工程,2016,34(12):93-97.
[3]GB 13223—2011火电厂大气污染物排放标准[S].北京:中国标准出版社,2011.
[4]陈焱,许月阳,薛建明.燃煤烟气中SO3成因、影响及其减排对策[J].电力科技与环保,2011,27(3):35-37.
[5]朱崇兵,金保升,李锋,等.SO2氧化对SCR法烟气脱硝的影响[J].锅炉技术,2008,39(3):68-72.
[6]罗汉成,潘卫国,丁红蕾,等.燃煤锅炉烟气中SO3的产生机理及其控制技术[J].锅炉技术,2015,46(6):69-72.
[7]王宏亮,薛建明,许月阳,等.燃煤电站锅炉烟气中SO3的生成及控制[J].电力科技与环保,2014,30(5):17-20.
[8]王智,贾莹光,祁宁.燃煤电站锅炉及SCR脱硝中SO3的生成及危害[J].东北电力技术,2005,26(9):1-3.
[9]陈朋.钙基吸收剂脱除燃煤烟气中SO3的研究[D].济南:山东大学,2011.
[10]程凯.燃煤电站烟气脱硝SCR催化剂中型工业实验研究[D].济南:山东大学,2011.
[11]李锋,於承志,张朋,等.低SO2氧化率脱硝催化剂的开发[J].电力科技与环保,2010,26(4):18-21.
[12]Emissions Limits Database[EB/OL].http://www.emissionslimits.org.
[13]刘含笑,姚宇平,郦建国,等.燃煤电厂烟气中SO3生成、治理及测试技术研究[J].中国电力,2015,48(9):152-156.
[14]Kong Y,Wood M D.Dry Injection oftrona for SO3Control[J].Power,2010,154(5):114-120.
[15]胡永锋,白永锋.SCR法烟气脱硝技术在火电厂的应用[J].节能技术,2007,25(2):152-156.
[2]刘宇,单广波,闫松,等.燃煤锅炉烟气中SO3的生成、危害及控制技术研究进展[J].环境工程,2016,34(12):93-97.
[3]GB 13223—2011火电厂大气污染物排放标准[S].北京:中国标准出版社,2011.
[4]陈焱,许月阳,薛建明.燃煤烟气中SO3成因、影响及其减排对策[J].电力科技与环保,2011,27(3):35-37.
[5]朱崇兵,金保升,李锋,等.SO2氧化对SCR法烟气脱硝的影响[J].锅炉技术,2008,39(3):68-72.
[6]罗汉成,潘卫国,丁红蕾,等.燃煤锅炉烟气中SO3的产生机理及其控制技术[J].锅炉技术,2015,46(6):69-72.
[7]王宏亮,薛建明,许月阳,等.燃煤电站锅炉烟气中SO3的生成及控制[J].电力科技与环保,2014,30(5):17-20.
[8]王智,贾莹光,祁宁.燃煤电站锅炉及SCR脱硝中SO3的生成及危害[J].东北电力技术,2005,26(9):1-3.
[9]陈朋.钙基吸收剂脱除燃煤烟气中SO3的研究[D].济南:山东大学,2011.
[10]程凯.燃煤电站烟气脱硝SCR催化剂中型工业实验研究[D].济南:山东大学,2011.
[11]李锋,於承志,张朋,等.低SO2氧化率脱硝催化剂的开发[J].电力科技与环保,2010,26(4):18-21.
[12]Emissions Limits Database[EB/OL].http://www.emissionslimits.org.
[13]刘含笑,姚宇平,郦建国,等.燃煤电厂烟气中SO3生成、治理及测试技术研究[J].中国电力,2015,48(9):152-156.
[14]Kong Y,Wood M D.Dry Injection oftrona for SO3Control[J].Power,2010,154(5):114-120.
[15]胡永锋,白永锋.SCR法烟气脱硝技术在火电厂的应用[J].节能技术,2007,25(2):152-156.