| 热处理改性活性炭纤维的脱硫活性 |
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| 引用本文： | 李开喜,凌立成,刘朗,张碧江,刘振宇.热处理改性活性炭纤维的脱硫活性[J].催化学报,2000,21(3):264-268. |
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| 作者姓名： | 李开喜 凌立成 刘朗 张碧江 刘振宇 |
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| 作者单位： | 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001 |
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| 基金项目： | 国家自然科学基金;29633030; |
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| 摘 要： | 考察了在O2和水蒸气存在下高温热处理对活性炭纤维（ACF）催化转化SO2为H2SO4的活性的影响，关联了ACF表面含氧官能团的种类及数量与热处理后ACF的脱硫活性之间的关系．结果表明，在最佳热处理温度下以CO形式释出的含氧官能团的总量决定了ACF的脱硫活性，而以CO2形式释出的含氧官能团未对提高ACF的脱硫活性做出贡献．通过采用不同的氧化剂改变ACF表面含氧官能团的种类和数量，进一步证实了热处理过程中释出的CO量与ACF的脱硫活性之间成正比关系．
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| 关 键 词： | 活性炭纤维 热处理 表面改性 表面含氧官能团 二氧化硫 脱硫 |
| 收稿时间： | 2000-06-25 |
Desulfurization Activity of Activated Carbon Fiber Modified by Heat Treatment |
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| LI Kaixi,LING Licheng,LIU Lang,ZHANG Bijiang,LIU Zhenyu.Desulfurization Activity of Activated Carbon Fiber Modified by Heat Treatment[J].Chinese Journal of Catalysis,2000,21(3):264-268. |
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| Authors: | LI Kaixi LING Licheng LIU Lang ZHANG Bijiang LIU Zhenyu |
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| Institution: | LI Kaixi 1,LING Licheng 2,LIU Lang 1,ZHANG Bijiang 1,LIU Zhenyu 2 |
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| Abstract: | 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. |
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| Keywords: | activated carbon fiber heat treatment surface modification surface oxygen functional group sulfur dioxide desulfurization |
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