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Desulfurization Activity of Activated Carbon Fiber Modified by Heat Treatment

LI Kaixi 1, LING Licheng 2, LIU Lang 1, ZHANG Bijiang 1, LIU Zhenyu 2 (1 Institute of Coal Chemistry; 2 State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, The Chinese Academy of Sciences, Taiyuan 030001, China)  
The influence of heat treatment on activity of activated carbon fiber (ACF) was examined for oxidative conversion of SO 2 to H 2SO 4 in the presence of O 2 and H 2O. The correlation of SO 2 removal activity was studied to CO and CO 2 evolution amounts during heat treatment of ACF. The results showed that the CO evolution amount determined the activity of ACF for SO 2 removal, whereas the CO 2 evolution amount did not contribute to the activity. By means of changing the types and amounts of oxygen functional groups in ACF using different oxidizing agents, it was confirmed that there is a direct proportion between the CO evolution amount and the activity of ACF for SO 2 removal.
【Fund】: 国家自然科学基金资助项目!(29633030);; 教育部回国人员科研启动基金
【CateGory Index】: O643
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