Research status and prospects of migration, transformation and control of SO3 from coal-fired flue gas

doi:10.16085/j.issn.1000-6613.2017-2486

Abstract

Abstract: The increased plume turbidity, the phenomenon of blue/yellow smoke and the conversion into secondary aerosol after its entry into the atmosphere caused by SO₃ emission have aroused increasing attention. The emission of SO₃ in coal-fired power plant mainly consists of coal combustion and SO₂ oxidation in selective catalytic reduction (SCR). With the increasing application of SCR and the use of high sulfur coal, the control of SO₃ emission from coal-fired is imminent. This paper reviewed the migration, transformation and removal of SO₃ in SCR, low-low temperature electrostatic precipitator, wet flue gas desulfurization and wet electrostatic precipitator. At the same time, this paper expounds two kinds of SO₃ control technologies in flue gas of coal-fired power plant, one is to take advantage of the synergistic effects of existing pollutant control devices, and the other is to absorb SO₃ through the injection of alkaline absorbent. The different types of alkaline absorbent and the injection position were compared. A control method combining alkaline absorbent spray with desulfurization wastewater evaporation treatment in flue gas duct was put forward. It is pointed out that exploring the characteristics of SO₃ migration and transformation in flue gas system, as well as the reaction mechanism of alkaline adsorbent for removing SO₃ and its influencing factors are the developing directions on the research of SO₃ control technology in coal-fired flue gas.

Key words: sulfur trioxide, coal-flue gas, migration, transformation, control

摘要： SO₃排放导致的烟羽浊度增大、蓝烟/黄烟现象及其排入大气环境后转化为二次气溶胶等问题，已引起广泛关注。燃煤电厂SO₃的排放主要由煤燃烧以及SCR烟气脱硝中SO₂氧化形成，随着选择性催化还原（SCR）脱硝设施的推广应用及高硫煤使用量的增多，控制燃煤SO₃排放已迫在眉睫。本文分析综述了燃煤烟气SO₃在SCR脱硝过程、低低温电除尘、湿法烟气脱硫以及湿式电除尘中的生成、迁移转化及脱除特性。同时介绍了两类控制燃煤烟气系统中SO₃的技术，一是利用现有污染物控制设备的协同作用；二是喷射碱性吸收剂吸收SO₃，综合比较了各类碱性吸收剂以及不同喷射位置，提出一种将喷碱性吸收剂与脱硫废水烟道蒸发技术相结合的控制方法。最后指出探究烟气系统中SO₃迁移转化特性以及碱性吸附剂脱除SO₃的反应机理及其影响因素是未来燃煤烟气SO₃控制技术研究的发展方向。

关键词: 三氧化硫(SO₃), 燃煤烟气, 迁移, 转化, 控制

CLC Number:

X701.7

LI Xinyi, PAN Danping, HU Bin, CHENG Teng, YANG Linjun. Research status and prospects of migration, transformation and control of SO₃ from coal-fired flue gas[J]. Chemical Industry and Engineering Progress, 2018, 37(12): 4887-4896.

李欣怡, 潘丹萍, 胡斌, 程滕, 杨林军. 燃煤烟气中SO₃迁移转化特性及其控制的研究现状及展望[J]. 化工进展, 2018, 37(12): 4887-4896.

References

[1] MORETTI A L, TRISCORI R J, RITZENTHALER D P.A system approach to SO₃ mitigation[C]//Combined Power Plant Air Pollutant Control Mega Symposium, Baltimore, Maryland. USA. 2006.
[2] WALSH P M, MCCAIN J D, CUSHING K M.Evaluation and mitigation of visible acidic aerosol plumes from coal fired power boilers[R]. EPA contract No.EP-C-04-056. Washington:US Environmental Protection Agency. 2006.
[3] 马双忱, 苏敏, 孙云雪, 等. O₃氧化模拟烟气脱硫脱硝的实验研究[J]. 中国电机工程学报, 2010, 30(s1):81-84. MA Shuangchen, SU Min, SUN Yunxue, et al. Experimental studies on removal SO₂ and NO_x from simulating flue gas with O₃ oxidation[J]. Proceedings of the CSEE, 2010, 30(s1):81-84.
[4] SRIVASTAVA R K, MILLER C A, ERICKSON C, et al. Emissions of sulfur trioxide from coal-fired power plants[J]. Journal of the Air & Waste Management Association, 2004, 54(6):750.
[5] 杨彦. 火力发电厂湿法烟气脱硫系统烟囱腐蚀与防腐研究[D]. 北京:北京交通大学, 2010. YANG Yan. Corrosive and anticorrosive research on reinforce concrete chimney after wet flue gas desulfurization in power plant[D]. Beijing:Beijing Jiaotong University, 2010.
[6] 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. HU Dong, WANG Haigang, GUO Tingting, et al. Research and progress of the control technology of flue gas from coal-fired power plants[J]. Science Technology and Engineering, 2015, 15(35):92-99
[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. WANG Hongliang, XUE Jianming, XU Yueyang, et al. Formation and control of SO₃ from coal-fired power plants[J]. Electric Power Technology and Environmental Protection, 2014, 30(5):17-20.
[8] 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. CHEN Yan, XU Yueyang, XUE Jianming. Discussion on flue gas SO₃ forming mechanism, impact and its counter measures[J]. Electric Power Technology and Environmental Protection, 2011, 27(3):35-37.
[9] 西安热工研究院. 火电厂SCR烟气脱硝技术[M]. 北京:中国电力出版社, 2013. Xi'an Thermal Power Research Institute Co., Ltd. Fire power plant SCR flue gas denitration technology[M]. Beijing:China Electric Power Press, 2013.
[10] 顾卫荣, 周明吉, 马薇, 等. 选择性催化还原脱硝催化剂的研究进展[J]. 化工进展, 2012, 31(7):1493-1500. GU Weirong, ZHOU Mingji, MA Wei, et al. Research progress on selective catalytic reduction De-NO_x catalysts[J]. Chemical Industry and Engineering Progress, 2012, 31(7):1493-1500.
[11] 马双忱, 金鑫, 孙云雪, 等. SCR烟气脱硝过程硫酸氢铵的生成机理与控制[J]. 热力发电, 2010, 39(8):12-17. MA Shuangchen, JIN Xin, SUN Yunxue, et al. The formation mechanism of ammonium bisulfate SCR flue gas denitrification progress and control thereof[J]. Thermal Power Generation, 2010, 39(8):12-17.
[12] SVACHULA J, ALEMANY L J, FERLAZZO N, et al. Oxidation of sulfur dioxide to sulfur trioxide over honeycomb DeNoxing catalysts[J]. Industrial & Engineering Chemistry Research, 1993, 32(5):826-834.
[13] SCHWÃMMLE T, BERTSCHE F, HARTUNG A, et al. Influence of geometrical parameters of honeycomb commercial SCR-DeNO_x-catalysts on DeNO_x-activity, mercury oxidation and SO₂/SO₃-conversion[J]. Chemical Engineering Journal, 2013, 222(8):274-281.
[14] 束航. SCR烟气脱硝过程中硫酸(氢)铵细颗粒生成及分解特性研究[D]. 南京:东南大学, 2015. SU Hang. Investigation on the formation and decomposition mechanism of ammonium sulfate and ammonium bisulfate fine particles during SCR process of coal-dired flue gas[D]. Nanjing:Southeast University, 2015.
[15] 姜烨, 高翔, 吴卫红, 等. 选择性催化还原脱硝催化剂失活研究综述[J]. 中国电机工程学报, 2013, 33(14):18-31. JIANG Ye, GAO Xiang, WU Weihong, et al. Review of the deactivation of selective catalytic reduction DeNO_x catalysts[J]. Proceedings of the CSEE, 2013, 33(14):18-31.
[16] LI Z, JIANG J, MA Z, et al. Effect of selective catalytic reduction (SCR) on fine particle emission from two coal-fired power plants in China[J]. Atmospheric Environment, 2015, 120:227-233.
[17] 张玉华, 束航, 范红梅, 等. 商业V₂O₅-WO₃/TiO₂催化剂SCR脱硝过程中PM_2.5的排放特性及影响因素研究[J]. 中国电机工程学报, 2015, 35(2):383-389. ZHANG Yuhua, SHU Hang, FAN Hongmei, et al. Research on emission characteristics and influencing factors of PM_2.5 for selective catalytic reduction based on V₂O₅-WO₃/TiO₂ commercial catalysts[J]. Proceedings of the CSEE, 2015, 35(2):383-389.
[18] 崔占忠, 龙辉, 龙正伟, 等. 低低温高效烟气处理技术特点及其在中国的应用前景[J]. 动力工程学报, 2012, 32(2):152-158. CUI Zhanzhong, LONG Hui, LONG Zhengwei, et al. Technical features of lower temperature high efficiency flue gas treatment system and its application prospects in China[J]. Journal of Chinese Society of Power Engineering, 2012, 32(2):152-158.
[19] 郦建国, 吴泉明, 余顺利, 等. 燃煤电站电除尘器提效改造技术路线的选择[J]. 中国环保产业, 2013(3):58-62. LI Jianguo, WU Quanming, YU Shunli, et al. The selection of technology route of electric dust catcher in coal-fired power station[J]. China Environmental Protection Industry, 2013(3):58-62.
[20] 赵海宝, 郦建国, 何毓忠, 等. 低低温电除尘关键技术研究与应用[J]. 中国电力, 2014, 47(10):117-121. ZHAO Haibao, LI Jianguo, HE Yuzhong, et al. Research and application of key technology of low temperature electric dust removal[J]. Electric Power, 2014, 47(10):117-121.
[21] 林翔. 低低温电除尘器提效及多污染物协同治理探讨[J]. 机电技术, 2014(3):10-13. LIN Xiang. Discussion on the effective and multi-pollutant collaborative management of low-temperature electrostatic precipitator[J]. Mechanical & Electrical Technology, 2014(3):10-13.
[22] 胡斌, 刘勇, 任飞, 等. 低低温电除尘协同脱除细颗粒与SO₃实验研究[J]. 中国电机工程学报, 2016, 36(16):4319-4325. HU Bin, LIU Yong, REN Fei, et al. Experimental study on simultaneous control of fine particle and SO₃ by Low-low temperature electrostatic precipitator[J]. Proceedings of the CSEE, 2016, 36(16):4319-4325.
[23] 张绪辉. 低低温电除尘器对细颗粒物及三氧化硫的协同脱除研究[D]. 北京:清华大学, 2015. ZHANG Xuhui. Studies on synergetic removal of fine particulates and SO₃ by an extra cold-side electrostatic precipitator[D]. Beijing:Tsinghua University, 2015.
[24] SINANIS S, WIX A, ANA L, et al. Characterization of sulphuric acid and ammonium sulphate aerosols in wet flue gas cleaning processes[J]. Chemical Engineering & Processing Process Intensification, 2008, 47(1):22-30.
[25] WIX A, BRACHERT L, SINANIS S, et al. A simulation tool for aerosol formation during sulphuric acid absorption in a gas cleaning process[J]. Journal of Aerosol Science, 2010, 41(12):1066-1079.
[26] BRACHERT L, KOCHENBURGER T, SCHABER K. Facing the sulfuric acid aerosol problem in flue gas cleaning:pilot plant experiments and simulation[J]. Aerosol Science and Technology, 2013, 47(10):1083-1091..
[27] BRACHERT L, MERTENS J, KHAKHARIA P, et al. The challenge of measuring sulfuric acid aerosols:number concentration and size evaluation using a condensation particle counter (CPC) and an electrical low pressure impactor (ELPI⁺)[J]. Journal of Aerosol Science, 2014, 67(1):21-27.
[28] MERTENS J, BRACHERT L, DESAGHER D, et al. ELPI⁺ measurements of aerosol growth in an amine absorption column[J]. International Journal of Greenhouse Gas Control, 2014, 23:44-50.
[29] 兰新生, 苏长华, 周易谦. 石灰石/石膏湿法脱硫系统净烟气中SO₃(硫酸雾)来源的讨论[J]. 电力科技与环保, 2006, 22(6):34-36. LAN Xinsheng, SU Changhua, ZHOU Yiqian. Discussion on the source of suifur trioxide(sulfuric acid mist)in flue gas streams after WFGD system[J]. Electric Power Technology and Environmental Protection, 2006, 22(6):34-36.
[30] PAN D P, YANG L J, WU H, et al. Removal characteristics of sulfuric acid aerosols from coal-fired power plants[J]. Journal of the Air & Waste Management Association, 2017, 67(3):352-357.
[31] PAN D P, YANG J, WU H, et al. Formation and removal characteristics of sulfuric acid mist in a wet flue gas desulfurization system[J]. Journal of Chemical Technology & Biotechnology, 2017, 92(3):598-604.
[32] MERTENS J, BRUNS R, SCHALLERT B, et al. Effect of a gas-gas-heater on H₂SO₄ aerosol formation:implications for mist formation in amine based carbon capture[J]. International Journal of Greenhouse Gas Control, 2015, 39:470-477.
[33] 潘丹萍, 吴昊, 杨林军, 等. 电厂湿法脱硫系统对烟气中细颗粒物及SO₃酸雾脱除作用研究[J]. 中国电机工程学报, 2016, 36(16):4356-4362. PAN Danping, WU Hao, YANG Linjun, et al. Removal effect of wet flue gas desulfurization system on fine particles and SO₃ acid mist from coal-fired power plants[J]. Proceedings of the CSEE, 2016, 36(16):4356-4362.
[34] CHANG J, DONG Y, WANG Z, et al. Removal of sulfuric acid aerosol in a wet electrostatic precipitator with single terylene or polypropylene collection electrodes[J]. Journal of Aerosol Science, 2011, 42(8):544-554.
[35] JORDAN S, PAUR H R, CHERDRON W, et al. Physical and chemical properties of the aerosol produced by the electron beam dry scrubbing of flue gas (ES-Verfahren)[J]. Journal of Aerosol Science, 1986, 17(4):669-675.
[36] ANDERLOHR C, BRACHERT L, MERTENS J, et al. Collection and generation of sulfuric acid aerosols in a wet electrostatic precipitator[J]. Aerosol Science & Technology, 2015, 49(3):144-151.
[37] HUANG J, ZHANG F, SHI Y, et al. Investigation of a pilot-scale wet electrostatic precipitator for the control of sulfuric acid mist from a simulated WFGD system[J]. Journal of Aerosol Science, 2016, 100:38-52.
[38] MERTENS J, ANDERLOHR C, ROGIERS P, et al. A wet electrostatic precipitator (WESP) as countermeasure to mist formation in amine based carbon capture[J]. International Journal of Greenhouse Gas Control, 2014, 31(31):175-181.
[39] 雒飞, 胡斌, 吴昊, 等. 湿式电除尘对PM_2.5/SO₃酸雾脱除特性的试验研究[J]. 东南大学学报(自然科学版), 2017(1):91-97. LUO Fei, HU Bin, WU Hao, et al. Experimental study on removal properties of PM_2.5 and sulfuric acid mist by wet electrostatic precipitator[J]. Journal of Southeast University (Natural Science Edition), 2017(1):91-97.
[40] 纪培栋. SCR催化剂SO₂氧化机理及调控机制[D]. 杭州:浙江大学, 2016. JI Peidong. Research of SO₂ oxidation over SCR caralyst and regulatory mechanism[D]. Hangzhou:Zhejiang University, 2016.
[41] 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. LIU Hanxiao, YAO Yuping, LI Jianguo, et al. Study on the generation, management and test of SO₃ in flue gas of coal-fired power plants[J]. Electric Power, 2015, 48(9):152-156.
[42] 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. WANG Zhi, JIA Yingguang, QI Ning. The creation and harm of SO₃ for coal-fired boiler and SCR denitration[J]. Northeast Electric Power Technology, 2005, 26(9):1-3.
[43] UEDA Y, HAMAGUCHI R, MATSUURA K, et al. SO₃ removal system for flue gas in plants firing high-sulfur residual fuels[J]. Mitsubishi Heavy Industries Technical Review, 2012, 49(4):6-12.
[44] KONG Y, WOOD M D. Dry injection of trona for SO₃ control[J]. Power, 2010, 154(5):114.
[45] 高智溥, 胡冬, 张志刚, 等. 碱性吸附剂脱除SO₃技术在大型燃煤机组中的应用[J]. 中国电力, 2017, 50(7):102-108. GAO Zhibo, HU Dong, ZHANG Zhigang, et al. Application of alkaline adsorbent removal SO₃ technology in large coal-fired units[J]. Electric Power, 2017, 50(7):102-108.
[46] GRAY S, MILLER S, MESEROLE F, et al. "In-situ" SBS iniection technology for SO₃ control:Summary of operating performance and economics[C]//Air Quality Ⅴ Conference. Arlington, USA, 2005.
[47] MA S C, CHAI J, CHEN G D. Research on desulfurization wastewater evaporation:present and future perspectives[J]. Renewable and Sustainable Energy Reviews, 2016, 58:1143-1151.

Research status and prospects of migration, transformation and control of SO₃ from coal-fired flue gas

燃煤烟气中SO₃迁移转化特性及其控制的研究现状及展望

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