典型煤灰成分细颗粒物在过饱和水汽环境中的长大特性

周璐璐; 张军; 徐俊超; 于燕; 孟强; 杨林军; 袁竹林

典型煤灰成分细颗粒物在过饱和水汽环境中的长大特性

东南大学能源与环境学院能源热转换及其过程测控教育部重点实验室, 江苏南京 210096

基金项目: 国家重点基础研究发展规划(973计划,2013CB228504);2015年度能源高效清洁利用湖南省高校重点实验室开放基金资助(2015NGQ003)。

详细信息

通讯作者:
张军,E-mail:junzhang@seu.edu.cn。

中图分类号: X51
计量
- 文章访问数: 359
- HTML全文浏览量: 19
- PDF下载量: 604
- 被引次数: 0
出版历程
- 收稿日期: 2014-12-15
- 修回日期: 2015-02-23
- 刊出日期: 2015-06-30

Growth of fine particulates of typical coal ash components in supersaturated water environment

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China

摘要

摘要: 实验采用专门针对液滴的滴谱仪作为测量工具,以典型煤灰成分细颗粒物石英、氧化铁、莫来石、硫酸钙为研究对象,在热水与冷空气接触形成的低过饱和度下进行了蒸汽异相凝结长大实验研究。考察了颗粒润湿性、粒径以及热水温度对颗粒长大效果的影响。结果表明,润湿性好的颗粒长大效果好,初始粒径越小的颗粒长大倍数越大;热水温度对颗粒长大影响非常明显,热水温度越高,颗粒越容易发生异相凝结,颗粒最终直径越大。
- 煤灰 /
- 细颗粒 /
- 长大 /
- 水汽相变 /
- 饱和水汽环境
Abstract: By using the droplet size meter, the growth of fine particulates of typical coal ash components, including quartz, ferric oxide, calcium sulphate and mullite, was investigated in supersaturated water environment. The supersaturated water vapor environment was built through the contact of hot water with cold air. The results show that the fine particulates with good wettability grow easily; the smaller the initial particle, the fast it grows. The temperature of hot water has a great influence on the growth of particulates; higher temperature is favorable to form larger particulates. Overall, the diameter of particulates with different physical and chemical properties can be increased to 1 to 6.6 times larger at low supersaturation.
- coal ash /
- fine particulate /
- growth /
- condensation /
- supersaturated water environment

HTML全文

参考文献(25)

SENIOR C L, HELBLE J J, SAROFIM A F. Emissions of mercury, trace elements and fine particles from stationary combustion sources[J]. Fuel Process Technol, 2000, 65(6): 263-288.

隋建才, 徐明厚, 丘纪华, 韩军. 煤燃烧中可吸入颗粒物的形成及其控制研究现状[J]. 热力发电, 2004, 12(3): 9-12. (SUI Jian-xue, XU Ming-hou, QIU Ji-hua, HAN Jun. Status quo of study on formation of particulate matters absorbable into coal fired utility boilers and control thereof[J]. Therm Power Gener, 2004, 12(3): 9-12.)

王鹏. 燃煤电厂可吸入颗粒物排放及控制研究[D]. 杭州: 浙江大学, 2008. (WANG Peng. Study on PM2.5 emission and control in coal combustion boiler of power plants[D]. Hangzhou: Zhejiang University, 2008.)

凡凤仙, 袁竹林. 外加声场对增加PM2.5碰撞几率的数值模拟研究[J]. 中国电机工程学报, 2006, 26(11): 12-16. (FAN Feng-xian, YUAN Zhu-lin. Numerical simulation of the conllision rate of PM2.5 in sound wave field[J]. Proc CSEE, 2006, 26(11): 12-16.)

WATANABE T, TOCHIKUBO F, KOIZMMI Y, TSUCHIDA T, HAUTANEN J, KAUPPINEN E. Submicron particle agglomeration by electrostatic agglomerator[J]. J Electrostatics, 1995, 34(4): 367-383.

LI Y W, ZHAO C S, WU X, LU D F. Aggregation experiments on fine fly ash particles in gtadient magnetic field[J]. Chem Eng Technol, 2007, 30(8): 1-6.

LIND T, KANPPINEN E I, SRINIVASACHAR K, PORLE K, GURAV A S, KODAS T T. Submicron agglomerate particle formation inlaboratory and full-scale pulverized coal combustion[J]. J Aerosol Sci, 1996, 127(8): 361-362.

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与展望[J]. 现代化工, 2005, 25(11): 22-26. (YANG Lin-jun, YAN Jin-pei, SHEN Xiang-lin.Prospect and advances in growth of PM2.5 from combustion by vapor condensation[J]. Mod Chem Ind, 2005, 25(11): 22-26.)

鲍静静, 杨林军, 颜金培, 黄永刚, 蒋振华, 沈湘林. 应用蒸汽相变协同脱除细颗粒和湿法脱硫的实验研究[J]. 中国电机学报, 2009, 29(2): 13-19. (BAO Jing-jing, YANG Lin-jun, YAN Jin-pei, HUANG Yong-gang, JIANG zhen-hua, SHEN xiang-lin. Experimental study on combined wet flue gas desulfurization and removal of fine particles by heterogeneous condensation enlargement[J]. Proc CSEE, 2009, 29(2): 13-19.)

YOSHIDA T, KOUSAKA Y, OKUYAMA K. Growth of aerosol particles by condensation[J]. lnd Eng Chem, 1976, (1): 37-41.

PORSTENDÖRFER J, SCHEIBEL H G, POHL F G, REISCHI G, WAGNER P E. Heterogeneous nucleation of water vapor on mono dispersed Ag and NaCl particles with diameters between 6 and 18 nm[J]. Aerosol Sci Technol, 1985, 4(1): 65-79.

HEIDENREICH S, EBERT F. Condensational droplet growth as a preconditioning technique for the separation of submicron particles from gases[J]. Chem Eng Process, 1995, 34(3): 235-244.

TAMMARO M, DI NATALE F, SALLUZZO A, LANCIA A. Heterogeneous condensation of submicron particles in a growth tube[J]. Chem Eng Sci, 2012, 74: 124-134.

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. (YAN Jin-pei, YANG Lin-jun, SHEN Xiang-lin. Wettability of PM2.5 from combustion[J]. J Southeast Univ(Nat Sci Ed), 2006, 36(5): 760-764.)

鲍静静, 杨林军, 颜金培. 应用蒸汽相变协同脱除细颗粒和湿法脱硫的实验研究[J]. 中国电机工程学报, 2009, 29(2): 13-19. (BAO Jing-jing, YANG Lin-jun, YAN Jin-pei. Experimental study on combined wet flue gas desulfurization and removal of fine particles by heterogeneous condensation enlargement[J]. Proc CSEE, 2009, 29(2): 13-19.)

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. (LU Bin, YANG Lin-jun, XIN Cheng-yun. Improving removal of fine particles from wet-process desulfurized flue gas by heterogeneous condensation[J]. J Southeast Univ(Nat Sci Ed), 2011, 41(1): 118-123.)

颜金培, 杨林军, 张霞. 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 Jin-pei, YANG Lin-jun, ZHANG Xia. Experimental study on separation of inhalable particles from coal combustion by Heterogeneous condensation enlargement[J]. Proc CSEE, 2007, 27(35): 12-16.)

PERRY R H, GREEN D W. Perry’s chemical engineering handbook[M]. Beijing: Science Press, 2001.

郭欣, 郑楚光, 孙涛. 电厂煤飞灰颗粒物的物理化学特征[J]. 燃烧科学与技术, 2005, 11(2): 192-195. (GUO Xin, ZHENG Chu-guang, SUN Tao. Physicochemical characteristics of fly ash from coal-fired power station[J]. J Combust Sci Technol, 2005, 11(2): 192-195.)

HERING S V, STOLZENBURG M R. A method for particle size amplification by water condensation in a laminar, thermally diffusive flow[J]. Aerosol Sci Technol, 2005, 39(5): 428-435.

徐俊超. 细颗粒物核化凝结长大实验平台设计及特性研究[D]. 南京: 东南大学, 2014. (XU Jun-chao. Fine particle growth by nucleation and condensation experiment system and characteristic research[D]. Nangjing: Southest University, 2014.)

HERING S V, STOLZENBURG M R. A method for particle size amplification by water condensation in a laminar, thermally diffusive flow[J]. Aerosol Sci Technol, 2005, 39(5): 428-436.

FLETCHER. Size effect in heterogeneous nucleation[J]. J Chem phys, 1958, 29(3): 572-576.

KULMALA M. Condensational growth and evaporation in the transition regime[J]. Aerosol Sci Technol, 1993, 19(3): 381-388.

AKYUREK B O, LARSON D, WANG G C. Cloud droplet growth: SIO217A[P]. 2013-12-06

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 359
HTML全文浏览量: 19
PDF下载量: 604
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

典型煤灰成分细颗粒物在过饱和水汽环境中的长大特性

通讯作者:
张军,E-mail:junzhang@seu.edu.cn。

计量

Growth of fine particulates of typical coal ash components in supersaturated water environment

计量

目录

2023年《燃料化学学报（中英文）》评优结果公布！

留言板

典型煤灰成分细颗粒物在过饱和水汽环境中的长大特性

通讯作者: 张军,E-mail:junzhang@seu.edu.cn。

计量

出版历程

Growth of fine particulates of typical coal ash components in supersaturated water environment

计量

出版历程

目录

2023年《燃料化学学报（中英文）》评优结果公布！

通讯作者:
张军,E-mail:junzhang@seu.edu.cn。