[1]陆斌,杨林军,辛成运.蒸汽相变促进湿法脱硫净烟气中细颗粒物的脱除[J].东南大学学报(自然科学版),2011,41(1):118-123.[doi:10.3969/j.issn.1001-0505.2011.01.023]
 Lu Bin,Yang Linjun,Xin Chengyun.Improving removal of fine particles from wet-process desulfurized flue gas by heterogeneous condensation[J].Journal of Southeast University (Natural Science Edition),2011,41(1):118-123.[doi:10.3969/j.issn.1001-0505.2011.01.023]
点击复制

蒸汽相变促进湿法脱硫净烟气中细颗粒物的脱除()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第1期
页码:
118-123
栏目:
环境科学与工程
出版日期:
2011-01-20

文章信息/Info

Title:
Improving removal of fine particles from wet-process desulfurized flue gas by heterogeneous condensation
作者:
陆斌杨林军辛成运
(东南大学能源与环境学院,南京210096)
Author(s):
Lu BinYang LinjunXin Chengyun
(School of Energy and Environment,Southeast University,Nanjing 210096,China)
关键词:
湿法脱硫净烟气蒸汽相变细颗粒物脱除
Keywords:
wet desulfurized flue gas heterogeneous condensation fine particles removal
分类号:
X51
DOI:
10.3969/j.issn.1001-0505.2011.01.023
摘要:
采用石灰石/石膏法脱硫工艺,结合蒸汽相变原理,实验考察了除雾器类型、脱硫净烟气特性、蒸汽添加量及同时在除雾器上喷低温水等对细颗粒物脱除性能的影响.结果表明:在脱硫净烟气中添加适量蒸汽,可显著提高细颗粒脱除效果,且脱除效率随蒸汽添加量增加而提高; 丝网除雾器比板波纹除雾器更适于凝结长大细颗粒物的脱除; 脱硫净烟气特性对细颗粒物相变脱除效果存在显著影响; 由于相变室内壁面易积灰,壁面材质对细颗粒脱除效果影响不明显; 添加蒸汽同时在除雾器上喷低温水可明显促进细颗粒的脱除,脱除效率可由约30%增至60%以上.
Abstract:
The influences of demister species, characteristics of desulfurized flue gas, the addition amount of water vapor and spraying cold water above the demister on the fine particles removal were investigated in a wet limestone-based process combining heterogenous condensation of steam. The results show that removal efficiency of fine particle can be significantly improved by adding steam into the wet desulfurized flue gas. And the removal efficiency increases with the amount of steam added. The wire mesh demister is more suitable to the removal of the grown fine particles than the wave-plate demister. The characteristics of desulfurized flue gas, such as temperature, moisture content and fine particle concentration, have a remarkable influence on the removal of fine particles. Due to the adherence of fly ash to the inner wall of the condensation chamber, the influence of surface characteristics of the condensation chamber is not obvious. Additionally, the removal effect can be improved by spraying cold water above the demister while adding steam, which can make an increase of removal efficiency from about 30% to more than 60%.

参考文献/References:

[1] 杨林军,颜金培,沈湘林.蒸汽相变促进燃烧源PM2.5凝并长大的研究现状及展望[J].现代化工,2005,25(11):22-26.
  Yang Linjun,Yan Jinpei,Shen Xianglin.Prospect and advances in growth of PM2.5 from combustion by vapor condensation[J].Modern Chemical Industry,2005,25(11):22-26.(in Chinese).
[2] 高翔鹏,徐明厚,姚洪.燃煤锅炉可吸入颗粒物排放特性及其形成机理的实验研究[J].中国电机学报,2007,27(17):11-17.
  Gao Xiangpeng,Xu Minghou,Yao Hong.Experimental study on emission characteristics and formation mechanisms of PM10 from a coal-fired boiler [J].Proceedings of the CSEE,2007,27(17):11-17.(in Chinese).
[3] 王玮,汤大纲,刘红杰,等.中国PM2.5污染状况和污染特征的研究[J].环境科学研究,2000,13(1):1-5.
  Wang Wei,Tang Dagang,Liu Hongjie,et al.Research on current pollution status and pollution characteristics of PM2.5 in China[J].Research of Environmental Sciences,2000,13(1):1-5.(in Chinese).
[4] van der Zee S,Hoek G,Harssema H.Characterization of particulate air pollution in urban and non-urban areas in the Netherlands[J].Atmospheric Enviroment,1998,32(21):3717-3729.
[5] Schauer P.Removal of submicron particles from a moving gas stream[J].Industrial &Engineering Chemistry,1951,43(7):1532-1538.
[6] Heidenreich S,Vogt U,Büttner H,et al.A novel process to separate submicron particles from gases — a cascade of packed columns[J].Chemical Engineering Science,2000,55(15):2895-2905.
[7] Sun J J,Liu B,McMurry P,et al.A method to increase control efficiencies of wet scrubbers for submicron particles and particulate metals[J].Journal of the Air &Waste Management Association,1994,44(2):184-185.
[8] Vogt U,Heidenreich S,Büttner H,et al.An extensive study of droplet growth and separation of submicron particles in packed columns[J].Particle Technology &Fluid Mechanics,1997,28(1):395-396.
[9] Heidenreich S,Ebert F.Condensational droplet growth as a preconditioning technique for the separation of submicron particles from gases[J].Chemical Engineering and Processing,1995,34(3):235-244.
[10] Heidenreich S,Büttner H.Investigations about the influence of the Kelvin effect on droplet growth rates[J].Journal of Aerosol Science,1995,26(2):335-339.
[11] Vogt U,Heidenreich S.Separation of submicron particles in packed columns — optimization and scale-up of the process[J].Chemical Engineering Technology,1999,22(11):935-942.
[12] 颜金培,杨林军,张霞,等.应用蒸汽相变机理脱除燃煤可吸入颗粒物实验研究[J].中国电机工程学报,2007,27(35):12-16.
  Yan Jinpei,Yang Linjun,Zhang Xia,et al.Experimental study on separation of inhalable particles from coal combustion by heterogeneous condensation enlargement[J].Proceedings of the CSEE,2007,27(35):12-16.(in Chinese).
[13] 张霞,杨林军,孙露娟,等.应用蒸汽相变机理脱除燃烧源PM2.5的实验研究[J].东南大学学报:自然科学版,2008,38(1):81-85.
  Zhang Xia,Yang Linjun,Sun Lujuan,et al.Experimental study on removal of PM2.5 from combustion by vapor heterogeneous condensation[J].Journal of Southeast University:Natural Science Edition,2008,38(1):81-85.(in Chinese).
[14] 王晖,顾帼华,邱冠周.接触角法测量高分子材料的表面能[J].中南大学学报:自然科学版,2006,37(5):942-947.
  Wang Hui,Gu Guohua,Qiu Guanzhou.Evaluation of surface free energy of polymers by contact angle goniometry[J].J Cent South Univ:Science and Technology,2006,37(5):942-947.(in Chinese).

相似文献/References:

[1]熊桂龙,杨林军,颜金培,等.蒸汽相变与撞击流耦合促进细颗粒物脱除[J].东南大学学报(自然科学版),2011,41(4):761.[doi:10.3969/j.issn.1001-0505.2011.04.020]
 Xiong Guilong,Yang Linjun,Yan Jinpei,et al.Improving removal of fine particles by coupling heterogeneous condensation with impinging streams[J].Journal of Southeast University (Natural Science Edition),2011,41(1):761.[doi:10.3969/j.issn.1001-0505.2011.04.020]
[2]张霞,杨林军,孙露娟,等.应用蒸汽相变机理脱除燃烧源PM2.5试验研究[J].东南大学学报(自然科学版),2008,38(1):81.[doi:10.3969/j.issn.1001-0505.2008.01.016]
 Zhang Xia,Yang Linjun,Sun Lujuan,et al.Experimental study on removal of PM2.5 from combustion by vapor heterogeneous condensation[J].Journal of Southeast University (Natural Science Edition),2008,38(1):81.[doi:10.3969/j.issn.1001-0505.2008.01.016]
[3]姜业正,吴昊,雒飞,等.添加湿空气对湿法脱硫净烟气中细颗粒物脱除性能[J].东南大学学报(自然科学版),2016,46(1):81.[doi:10.3969/j.issn.1001-0505.2016.01.014]
 Jiang Yezheng,Wu Hao,Luo Fei,et al.Performance study on fine particle removal from wet desulfurized flue gas by adding humid air[J].Journal of Southeast University (Natural Science Edition),2016,46(1):81.[doi:10.3969/j.issn.1001-0505.2016.01.014]

备注/Memo

备注/Memo:
作者简介:陆斌(1985—),男,硕士生;杨林军(联系人),男,博士,教授,博士生导师,ylj@seu.edu.cn.
基金项目:国家高技术研究发展计划(863计划)资助项目(2008AA05Z306)、江苏省自然科学基金资助项目(BK2008283).
引文格式: 陆斌,杨林军,辛成运.蒸汽相变促进湿法脱硫净烟气中细颗粒物的脱除[J].东南大学学报:自然科学版,2011,41(1):118-123.[doi:10.3969/j.issn.1001-0505.2011.01.023]
更新日期/Last Update: 2011-01-20