Citation: ZHANG He, ZHAO Jian-tao, FANG Yi-tian, WANG Yang. Role of activated carbon structures in catalytic oxidation adsorption for mercury[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(3): 360-366. shu

Role of activated carbon structures in catalytic oxidation adsorption for mercury

ZHANG He ^1,2 ,
ZHAO Jian-tao ^2,, ,
FANG Yi-tian ² ,
WANG Yang ²

1.
1. Taiyuan Institute of Technology, Taiyuan 030008, China;

Corresponding author: ZHAO Jian-tao,
Received Date: 13 September 2014

Fund Project: 国家自然科学基金(20706055) (20706055) 山西省高等学校科技创新项目(2013161)。 (2013161)

The Hg⁰ catalytic oxidation and adsorption capabilities of 3 activated carbons (ACs) and one active coke were evaluated in a simulated coal-derived atmosphere containing hydrogen sulfide (H₂S) and oxygen (O₂). The examined adsorbent properties that may affect adsorption capacity are pore structure and the presence of sulfur on surface of ACs. N₂ isothermal absorption data was treated by BET equation and to calculate the special surface area. The absorption data was settled by HK method to obtain the micro porous structure. The medium pore diameter distribution was calculated by BJH method. The results reveal that with the increasing of micro pore and medium pore volume, Hg⁰ adsorptive capacity of activated carbons is enhanced. In all cases, Hg⁰ removal efficiency increases with sulfur addition.
- coal-derived gas,
- activated carbon,
- mercury adsorption,
- pore structure
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