[1]颜金培,杨林军,沈湘林.燃烧源PM2.5微粒润湿性能[J].东南大学学报(自然科学版),2006,36(5):760-764.[doi:10.3969/j.issn.1001-0505.2006.05.016]
 Yan Jinpei,Yang Linjun,Shen Xianglin.Wettability of PM2.5 from combustion[J].Journal of Southeast University (Natural Science Edition),2006,36(5):760-764.[doi:10.3969/j.issn.1001-0505.2006.05.016]
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燃烧源PM2.5微粒润湿性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第5期
页码:
760-764
栏目:
环境科学与工程
出版日期:
2006-09-20

文章信息/Info

Title:
Wettability of PM2.5 from combustion
作者:
颜金培 杨林军 沈湘林
东南大学洁净煤发电与燃烧技术教育部重点实验室, 南京 210096
Author(s):
Yan Jinpei Yang Linjun Shen Xianglin
Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
燃烧源PM2.5 润湿剂 润湿性能
Keywords:
PM2.5 from combustion wetting agent wettability
分类号:
X51
DOI:
10.3969/j.issn.1001-0505.2006.05.016
摘要:
利用Washburn动态渗透压力法研究了燃煤电厂与垃圾焚烧发电厂PM2.5微粒的润湿性能及其与微粒形态和组分的关系,并考察了添加润湿剂(十二烷基苯磺酸钠(SDBS)、十二烷基硫酸钠(SDS)、JFC、FS-310、Silanol w22)对水润湿燃烧源PM2.5的改善作用.利用扫描电镜和X-射线能谱分析了微粒的形态和化学组分.结果表明:微粒的形态和组分对润湿性能有较大影响,垃圾焚烧发电厂PM2.5微粒的水润湿性能优于燃煤电厂PM2.5; 不同润湿剂改善燃烧源PM2.5微粒润湿性的效果与微粒特性密切相关,SDS,Silanol w22可明显改善燃煤电厂PM2.5微粒的润湿性能,而FS-310,JFC则对垃圾焚烧电厂PM2.5微粒有显著改善作用; 研究结果可为利用蒸汽相变提高燃烧源PM2.5脱除效果及湿法除尘提供重要基础.
Abstract:
A Washburn penetration pressure method was used to determine the wettability of PM2.5 from coal-fired and municipal solid waste incineration(MSWI)power plant by a range of wetting agents(SDBS,SDS,JFC, FS-310,Silanol w22)and water solution. The role of particle morphology and chemical composition was explored by scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS). It is concluded that the wetting ability of PM2.5 is in relation with both the morphology and composition, and the PM2.5 from MSWI power plant is more wettable. It seems that SDS、Silanol w22 can improve coal-combustion PM2.5 wettability obviously, while FS-310,JFC are in favor of MSWI particles. The improvement of PM2.5 wettability by addition wetting agents relates closely to the characteristics of PM2.5. The results are significant for the separation of PM2.5 from gases by heterogeneous condensation of water vapor as a preconditioning technique and wet-process dedusting.

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备注/Memo

备注/Memo:
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2002CB211600)、国家自然科学基金资助项目(20576020).
作者简介: 颜金培(1981—),男,博士生; 沈湘林(联系人),男, 教授,博士生导师,xlshen@seu.edu.cn.
更新日期/Last Update: 2006-09-20