Numerical investigation of PM2.5 size enlargement by heterogeneous condensation for particulate abatement

被引:37
作者
Fan, Fengxian [1 ,2 ]
Zhang, Sihong [1 ,2 ]
Wang, Wenying [1 ,2 ]
Yan, Jinpei [3 ]
Su, Mingxu [1 ,2 ]
机构
[1] Univ Shanghai Sci & Technol, Sch Energy & Power Engn, 516 Jun Gong Rd, Shanghai 200093, Peoples R China
[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Multiphase Flow & Heat Transfer, 516 Jun Gong Rd, Shanghai 200093, Peoples R China
[3] Minist Nat Resources, Inst Oceanog 3, Xiamen 361005, Peoples R China
基金
中国国家自然科学基金;
关键词
PM2.5; Heterogeneous nucleation; Condensation growth; Particle size enlargement; Particulate abatement; Numerical simulation; FINE PARTICLES; ACOUSTIC AGGLOMERATION; SUBMICRON PARTICLES; DIRECT SIMULATION; LINE-TENSION; WATER-VAPOR; PART; NUCLEATION; GROWTH; AEROSOL;
D O I
10.1016/j.psep.2019.03.018
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Vapor heterogeneous condensation with PM2.5 as nuclei is a promising approach to enlarge the particle sizes and thus facilitate subsequent particulate abatement by the existing inertial separators. However, the investigation on PM2.5 size enlargement by vapor heterogeneous condensation, which is important to optimize the particulate abatement process, has been largely lacking. In this study, the evolution of particle size distribution due to vapor heterogeneous condensation on the surfaces of polydisperse insoluble PM2.5 was modelled based on the classical heterogeneous nucleation theory and the condensation droplet growth theory. Using this model, the effects of operational parameters on the particle size distribution after heterogeneous condensation were numerically investigated. The results show that the polydisperse fine particles shift to monodisperse coarse particles at a small contact angle, whereas bimodal particle size distribution after heterogeneous condensation is generated at a large contact angle. Higher vapor saturation ratio, higher gas temperature, longer residence time, and greater geometric mean particle size are beneficial to PM2.5 size enlargement and subsequent particulate abatement. Moreover, the geometric standard deviation of particle sizes has little effect on the PM2.5 size enlargement. The model predictions of the particle size distribution after vapor heterogeneous condensation match well with the experimental data. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:197 / 206
页数:10
相关论文
共 44 条
[1]   Aerosol-cloud-precipitation interactions. Part 1. The nature and sources of cloud-active aerosols [J].
Andreae, M. O. ;
Rosenfeld, D. .
EARTH-SCIENCE REVIEWS, 2008, 89 (1-2) :13-41
[2]   Measuring the three-phase contact angle of nanoparticles at fluid interfaces [J].
Arnaudov, Luben N. ;
Cayre, Olivier J. ;
Stuart, Martien A. Cohen ;
Stoyanov, Simeon D. ;
Paunov, Vesselin N. .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (02) :328-331
[3]   Removal of fine particles by heterogeneous condensation in the double-alkali desulfurization process [J].
Bao, Jingjing ;
Yang, Linjun ;
Sun, Weidi ;
Geng, Junfeng ;
Yan, Jinpei ;
Shen, Xianglin .
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2011, 50 (08) :828-835
[4]   Heterogeneous nucleation activation in a condensational scrubber for particulate abatement [J].
de Joannon, M. ;
Cozzolino, G. ;
Cavaliere, A. ;
Ragucci, R. .
FUEL PROCESSING TECHNOLOGY, 2013, 107 :113-118
[5]   Size matters more than chemistry for cloud-nucleating ability of aerosol particles [J].
Dusek, U. ;
Frank, G. P. ;
Hildebrandt, L. ;
Curtius, J. ;
Schneider, J. ;
Walter, S. ;
Chand, D. ;
Drewnick, F. ;
Hings, S. ;
Jung, D. ;
Borrmann, S. ;
Andreae, M. O. .
SCIENCE, 2006, 312 (5778) :1375-1378
[6]   Numerical investigation of heterogeneous nucleation of water vapour on PM10 for particulate abatement [J].
Fan, Fengxian ;
Zhang, Sihong ;
Peng, Zhengbiao ;
Chen, Jun ;
Su, Mingxu ;
Moghtaderi, Behdad ;
Doroodchi, Elham .
CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2019, 97 (04) :930-939
[7]   Direct Simulation Monte Carlo Method for Acoustic Agglomeration under Standing Wave Condition [J].
Fan, Fengxian ;
Zhang, Mingjun ;
Peng, Zhengbiao ;
Chen, Jun ;
Su, Mingxu ;
Moghtaderi, Behdad ;
Doroodchi, Elham .
AEROSOL AND AIR QUALITY RESEARCH, 2017, 17 (04) :1073-1083
[8]   Direct simulation of inhalable particle motion and collision in a standing wave field [J].
Fan, Fengxian ;
Yang, Xufeng ;
Kim, Chang Nyung .
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2013, 27 (06) :1707-1712
[9]   Experimental investigation on removal of coal-fired fine particles by a condensation scrubber [J].
Fan, Fengxian ;
Yang, Linjun ;
Yan, Jinpei ;
Bao, Jingjing ;
Shen, Xianglin .
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2009, 48 (08) :1353-1360
[10]   Numerical analysis of water vapor nucleation on PM2.5 from municipal solid waste incineration [J].
Fan, Fengxian ;
Yang, Linjun ;
Yan, Jinpei ;
Yuan, Zhulin .
CHEMICAL ENGINEERING JOURNAL, 2009, 146 (02) :259-265