碱性吸附剂脱除SO3技术在大型燃煤机组中的应用

doi:10.11930/j.issn.1004-9649.2017.07.102.07

中国电力 ›› 2017, Vol. 50 ›› Issue (7): 102-108.DOI: 10.11930/j.issn.1004-9649.2017.07.102.07

碱性吸附剂脱除SO₃技术在大型燃煤机组中的应用

高智溥, 胡冬, 张志刚, 郭婷婷, 王海刚, 陈坤洋

中国大唐集团科学技术研究院有限公司火力发电技术研究所,北京 102206

收稿日期:2017-04-01 出版日期:2017-07-05 发布日期:2017-07-25
作者简介:高智溥（1962—）,男,河北廊坊人,高级工程师,从事发电技术的相关研究。E-mail: gaozhipu@cdt-kxjs.com
基金资助:
中国大唐集团公司技术改造专项（DTJG2015-GJ088）

Application of SO₃ Removal with Alkaline Sorbent Injection in Large Capacity Coal-Fired Power Plants

GAO Zhipu, HU Dong, ZHANG Zhigang, GUO Tingting, WANG Haigang, CHEN Kunyang

Institute of Thermal Power Generation Technology, China Datang Corporation Science and Technology Research Institute Co., Ltd., Beijing 102200, China

Received:2017-04-01 Online:2017-07-05 Published:2017-07-25
Supported by:
; This work is supported by CDT Technical Upgrading Specific Fund (No.DTJG2015-GJ088)

摘要/Abstract

摘要： 为解决燃煤机组空气预热器（简称空预器）堵塞、烟道腐蚀、硫酸氢铵粘结除尘设备、烟囱蓝羽等问题,应对未来严格的SO₃排放标准,研究了碱性吸附剂脱除SO₃技术。对比了碱性吸附剂干粉注射系统与浆液注射系统的技术特征;研究了不同碱性吸附剂的适用范围及其在中国的资源储量和价格;以燃煤硫分1%的600 MW机组为例,分析了吸附剂注射系统的技术经济性。结果表明：碱性吸附剂注射技术是解决SO₃污染及相关问题的有效方法;不同吸附剂在适合的位置注射均能满足SO₃脱除率的要求,注射位置和经济性是影响技术路线确定的关键;浆液注射系统年运行费用约为干粉注射系统的2.9倍;在中国应用的干粉注射系统推荐采用Ca（OH）₂或MgO等吸附剂,Ca（OH）₂注射位置可选择空预器进出口,MgO注射位置以SCR装置进出口为主。

关键词: 燃煤机组, 燃煤烟气, SO₃, 干粉注射, 浆液注射, 空气预热器

Abstract: In order to solve the problems of air heater fouling, duct corrosion, ammonium bisulfate adhering to ESP and plume opacity to meet the strict SO₃ emission standards in the future, the SO₃ removal technology with alkaline sorbent is studied in this paper. The technical characteristics of the dry sorbent injection are compared with those of the slurry injection. In addition, the applicable scope of different alkaline sorbents is studied, and the reserves and prices of the mineral resources in China are also investigated. Then the technical and economic characteristics of the sorbent injection system are analyzed on a 600 MW coal-fired unit that fires the coal with 1% sulfur content. The results show that the technology of alkaline sorbent injection is an effective way to solve SO₃ pollution and related issues. All sorbents injected in suitable positions can meet the requirements of SO₃ removal efficiency. The injecting location and the economy are vital for determining the technical route. The operation cost of the slurry injection system is about 2.9 times of that of the dry sorbent injection system in China. The dry sorbents such as Ca(OH)₂ and MgO are recommended, Ca(OH)₂ is better to be injected at the inlet or outlet of the air heater and MgO to be injected at the SCR inlet or outlet.

Key words: coal-fired flue gas, SO₃, dry sorbent injection, slurry injection, air heater

中图分类号:

TM621

高智溥, 胡冬, 张志刚, 郭婷婷, 王海刚, 陈坤洋. 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 Zhipu, HU Dong, ZHANG Zhigang, GUO Tingting, WANG Haigang, CHEN Kunyang. Application of SO₃ Removal with Alkaline Sorbent Injection in Large Capacity Coal-Fired Power Plants[J]. Electric Power, 2017, 50(7): 102-108.

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https://www.electricpower.com.cn/CN/Y2017/V50/I7/102

参考文献

[1] 莫华,朱杰,黄志杰,等. 超低排放下不同湿法脱硫技术脱除SO 3 效果测试与分析[J]. 中国电力,2017,50（3）：46-50.
MO Hua, ZHU Jie, HUANG Zhijie, et al . Test and study on SO 3 removal performance of different wet flue gas desulfurization technologies at ultra-low pollutants emission[J]. Electric Power, 2017, 50(3): 46-50.
[2] 张曦丹,朱法华,汤光华,等. 一种提高SO 2 和NO x 分析仪稳定性与准确度的方法[J]. 中国电力,2017,50（3）：51-54,76.
ZHANG Xidan, ZHU Fahua, TANG Guanghua, et al . A novel method to improve the stability and accuracy of SO 2 and NO x analyzer [J]. Electric Power, 2017, 50(3): 51-54, 76.
[3] 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: 750-762.
[4] 胡冬,王海刚,郭婷婷,等. 燃煤电厂烟气SO 3 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 development of mitigating technology of SO 3 in flue gas from coal power plants[J]. Science Technology and Engineering, 2015, 15(35): 92-99.
[5] PETERSON J, JONES A F. SO 3 Mitigation guide[R]. California: Electric Power Research Institute, 1994.
[6] 孙丽梅,单忠健. 国内外煤炭燃前脱硫工艺的研究进展[J]. 洁净煤技术,2005,11（1）：55-58.
SUN Limei, SHAN Zhongjian. Research progress of coal desulfurization at host combustion in domestic and abroad[J].Clean Coal Technology, 2005, 11(1): 55-58.
[7] MUZIO L J, OFFEN G R. Assessment of dry sorbent emission control technologies: Part i. fundamental process [J]. Journal of the Air Pollution Control Association, 1987, 37(5): 642-654.
[8] PLUMLEY A L, BORIO, D C, LEWIS R D. Feasibility of furnace limestone injection for SO 2 control [R]. California: Electric Power Research Institute, 1992.
[9] PRITCHARD S, KANEKO S, SUYAMA K, et al . Optimizing SCR catalyst design and performance for coal-fired boilers [C]//EPA/EPRI 1995 Joint Symposium Stationary Combustion NO x Control. Kansas, USA, 1995.
[10] BENSON S A, LAUMB J D, CROCKER C R, et al . SCR catalyst performance in flue gases derived from subbituminous and lignite coals [J]. Fuel Processing Technology, 2005, 86: 577-613.
[11] 王平,林海波,姚友工,等.SCR催化剂再生技术在燃煤电厂的应用[J].中国电力,2015,48（4）：40-43.
WANG Ping, LIN Haibo, YAO Yougong, et al . Application of SCR catalyst regeneration technology in coal-fired power plants [J]. Electric Power, 2015, 48(4): 40-43.
[12] RHUDY R. Sulfuric acid removal process evaluation: short-term results [R]. California: Electric Power Research Institute, 2001.
[13] SCHMIDTCHEN P A, HATERN M J, LOMBARDI D E, et al . High activity magnesia use for SCR related SO 3 problems [C]// Proceedings of 2002 Conference on Selective Catalytic Reduction (SCR) and Selective Non-catalytic Reduction（SNCR） for NO x Control. Pennsylvania, USA, 2002.
[14] RHUDY R. Sulfuric acid removal process evaluation: Long-term results [R]. California: Electric Power Research Institute, 2002.
[15] KONG Y, MICHAEL D. Dry injection of trona for SO 3 control [EB/OL]. (2016-05-06)[2015/07/27]. http://www.powermag.com/dry-injection-of-trona-for-SO 3 -control.
[16] WANG J M. Leaching behavior of coal combustion products and the environmental implication in road construction[D]. Missouri: Missouri University of Science and Technology, 2011.
[17] BLYTHE G, DOMBROWSKI K, MILLER S. Results of full-scale testing of sodium bisulfite injection for flue gas sulfuric acid control [R]. California: Electric Power Research Institute, 2006.
[18] GRAY S, MILLER S, MESEROLE F, et al . “In-Situ” SBS iniection technology for SO 3 control: Summary of operating performance and economics[C]//Air Quality V Conference. Arlington, USA, 2005.
[19] BIONDA J, AITA K. The effect of SO 3 sorbent on ESP performance: A state of the art review[R]. California: Electric Power Research Institute, 2006.
[20] HELFRITCH D J, FELDMAN P, WEINSTEIN L B. Electrostatic precipitator upgrade for furnace sorbent injection[R]. California: Electric Power Research Institute, 1989.
[21] BLYTHE G. Furnace injection of alkaline sorbents for sulfuric acid removal [R]. Texas: URS Corporation, 2004.
[22] 李良友,王洪有,王瑛. 石灰石资源的开发利用[J]. 矿产综合利用,1998（6）：43-48.
LI Liangyou, WANG Hongyou, WANG Ying. A review on the exploitation of limestone resource in China[J]. Multipurpose Utilization of Mineral Resources, 1998(6): 43-48.
[23] 贺占海. 我国天然碱工业发展战略[C]//中国纯碱工业发展战略研究. 2004：38-42.
[24] 孟树昆,贾明星. 有色金属系列丛书：中国镁业[M]. 北京：冶金工业出版社,2013.

碱性吸附剂脱除SO₃技术在大型燃煤机组中的应用

Application of SO₃ Removal with Alkaline Sorbent Injection in Large Capacity Coal-Fired Power Plants

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