Citation: ZHAO Li, HE Qing-song, LIU Yu, WU Yang-wen, LU Qiang, LIU Song-tao, DONG Chang-qing. Mechanism of Hg²⁺ reduction in wet flue gas desulfurization liquors[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(6): 755-760. shu

Mechanism of Hg²⁺ reduction in wet flue gas desulfurization liquors

ZHAO Li ^1,*,, ,
HE Qing-song ¹ ,
LIU Yu ¹ ,
WU Yang-wen ¹ ,
LU Qiang ¹ ,
LIU Song-tao ² ,
DONG Chang-qing ¹

1.
National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China
2.
Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China

Corresponding author: ZHAO Li, zhaoli9533@163.com
Received Date: 6 January 2017
Revised Date: 12 April 2017

Fund Project: Science and Technology Project of Hebei Province 15273706DFundamental Research Funds for the Central Universities 2015ZD24the Major State Basic Research Development Program of China 2015CB251501the Major State Basic Research Development Program of China 973 project

Figures(6)

Given the easy reduction of Hg²⁺ in wet desulfurization slurry in a power plant, migration mechanism of Hg²⁺ in a simulated system was studied. Influences of several experimental parameters including slurry temperature, pH value and concentrations of SO₃^2-, Cl^-, Ca²⁺ and Mg²⁺ were investigated separately. The results indicate that the increase of SO₃^2- concentration lowers the reduction rate of Hg²⁺, while the rise of slurry temperature leads to an opposite result. The effect of pH value shows a trend of first increase and then decrease, and reaches the highest reduction rate at pH value of 5.5. Moreover, the rise of Ca²⁺, Mg²⁺ and Cl^- concentrations could inhibit the reduction of Hg²⁺.
- Hg²⁺ reduction,
- pH value,
- slurry temperature,
- ion concentration,
- wet desulfurization
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Mechanism of Hg2+ reduction in wet flue gas desulfurization liquors

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通讯作者: 陈斌, bchen63@163.com

Mechanism of Hg²⁺ reduction in wet flue gas desulfurization liquors