Gas-liquid absorption reaction between (NH4)2SO3 solution and SO2 for ammonia-based wet flue gas desulfurization

被引：119

作者：

Gao, Xiang ^{[1
]}

Ding, Honglei ^{[1
]}

Du, Zhen ^{[1
]}

Wu, Zuliang ^{[2
]}

Fang, Mengxiang ^{[1
]}

Luo, Zhongyang ^{[1
]}

Cen, Kefa ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China

[2] Zhejiang Gongshang Univ, Dept Environm Engn, Hangzhou 310035, Peoples R China

来源：

APPLIED ENERGY | 2010年 / 87卷 / 08期

关键词：

(NH4)(2)SO3 solution; SO2; Absorption; Gas-liquid reaction; Two-film theory; SULFUR-DIOXIDE; KINETICS; NO; ABATEMENT;

D O I：

10.1016/j.apenergy.2010.03.023

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：

In order to investigate the characteristics of the reaction between ammonium sulfite. the main desulfurizing solution, and the flue-gas-contained sulfur dioxide during the process of ammonia-based WFGD (wet flue gas desulfurization) in a power plant, the gas-liquid absorption reaction between sulfur dioxide and an ammonium sulfite solution was studied in a stirred tank reactor. The experimental results indicate that the absorption of sulfur dioxide is controlled by both the gas- and liquid-films when the ammonium sulfite concentration is lower than 005 mol/L, and mainly by the gas-film at higher concentrations In the latter case, the reaction rates are found to be zero-order with respect to the concentration of ammonium sulfite The absorption rates of sulfur dioxide increase as the concentration of sulfur dioxide in inlet gas and the temperature increase. The reaction rate is of 0.6th-order with respect to the concentration of sulfur dioxide. (C) 2010 Elsevier Ltd. All rights reserved

引用

页码：2647 / 2651

页数：5

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