Numerical simulation of sorbent injection into flue gas for mercury removal in Coal-Fired power Plant. Part 1. Model establishment and validation

被引：9
作者：
Shen, Ao [1 ]
Wang, Yuqing [1 ]
Wang, Runlin [1 ]
Duan, Yufeng [1 ]
Tao, Jun [2 ]
Gu, Xiaobing [2 ]
Wang, Peng [3 ]
Xu, Zhong [3 ]
机构：
[1] Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing 210096, Peoples R China
[2] Datang Environm Ind Grp Co Ltd, Beijing 100097, Peoples R China
[3] Nantong Surun Environm Protect Technol Co Ltd, Nantong 226010, Peoples R China
来源：
FUEL | 2022年 / 326卷
基金：
国家重点研发计划;
关键词：
Numericalsimulation; Adsorptionequilibrium; Adsorptionmodel; Mercurysorbentinjection; Coal-firedfluegas; ACTIVATED CARBON INJECTION; ELEMENTAL MERCURY; CAPTURE; COKE;
D O I：
10.1016/j.fuel.2022.124931
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Mercury emission from coal-fired power plant has received more concerns because of its high toxicity to human health. The sorbent injection into flue gas is an effective way to control mercury pollution. However, it has not been yet applied widely in coal-fired power plant due to the high operational costs and complexity of the flue duct system, which depends on the reasonable design and optimal operational parameters. The CFD methodology provides a reliable way to predict the mercury efficiency and to optimize the injection system. This research developed a new mercury adsorption model by coupling the mass transfer theory and the isotherm adsorption equilibrium. The quasi second order adsorption kinetic model was found the best agreement with the fixed-bed experimental results of mercury removal performance, and the Freundlich isotherm adsorption equation was suitable to describe the equilibrium adsorption process of the sorbent. The reliability of this prediction model was verified in a 75 t/h circulating fluidized bed boiler system with the sorbent injection into duct for flue gas mercury removal.
引用
收藏
页数：9
相关论文
共 34 条
[1]   Predicting drift from field spraying by means of a 3D computational fluid dynamics model [J].
Baetens, K. ;
Nuyttens, D. ;
Verboven, P. ;
De Schampheleire, M. ;
Nicolai, B. ;
Ramon, H. .
COMPUTERS AND ELECTRONICS IN AGRICULTURE, 2007, 56 (02) :161-173
[2]   Modeling sorbent injection for mercury control in baghouse filters: I - Model development and sensitivity analysis [J].
Flora, JRV ;
Hargis, RA ;
O'Dowd, WJ ;
Pennilne, HW ;
Vidic, RD .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 2003, 53 (04) :478-488
[3]   Mercury transformations in coal combustion flue gas [J].
Galbreath, KC ;
Zygarlicke, CJ .
FUEL PROCESSING TECHNOLOGY, 2000, 65 :289-310
[4]   A Critical Review on the Heterogeneous Catalytic Oxidation of Elemental Mercury in Flue Gases [J].
Gao, Yanshan ;
Zhang, Zhang ;
Wu, Jingwen ;
Duan, Linhai ;
Umar, Ahmad ;
Sun, Luyi ;
Guo, Zhanhu ;
Wang, Qiang .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (19) :10813-10823
[5]   Current progress on understanding the impact of mercury on human health [J].
Ha, Eunhee ;
Basu, Niladri ;
Bose-O'Reilly, Stephan ;
Dorea, Jose G. ;
McSorley, Emeir ;
Sakamoto, Mineshi ;
Chan, Hing Man .
ENVIRONMENTAL RESEARCH, 2017, 152 :419-433
[6]  
Kim Moon-Kyung, 2012, J Prev Med Public Health, V45, P335, DOI 10.3961/jpmph.2012.45.6.335
[7]   Carbon-based novel sorbent for removing gas-phase mercury [J].
Lee, SH ;
Rhim, YJ ;
Cho, SP ;
Baek, JI .
FUEL, 2006, 85 (02) :219-226
[8]   Numerical simulation of sorbent injection for mercury removal within an electrostatic precipitator: In-flight plus wall-bounded mechanism [J].
Li, Hailong ;
Huang, Guohai ;
Yang, Qin ;
Zhao, Jiexia ;
Liu, Zongyao ;
Yang, Jianping .
FUEL, 2022, 309
[9]   Modeling the adsorption of mercury in the flue gas of sewage sludge incineration [J].
Malerius, O ;
Werther, J .
CHEMICAL ENGINEERING JOURNAL, 2003, 96 (1-3) :197-205
[10]   Three-dimensional numerical simulation of a circulating fluidized bed reactor for multi-pollutant control [J].
Mao, DM ;
Edwards, JR ;
Kuznetsov, AV ;
Srivastava, RK .
CHEMICAL ENGINEERING SCIENCE, 2004, 59 (20) :4279-4289
1234