| 改性活性炭脱除二氧化碳中的微量苯 |
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| 引用本文： | 李玉雪,张永春.改性活性炭脱除二氧化碳中的微量苯[J].化工学报,2009,60(6):1494-1499. |
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| 作者姓名： | 李玉雪 张永春 |
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| 作者单位： | 大连理工大学精细化工国家重点实验室 |
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| 基金项目： | 国家火炬计划(2007GH560021)~~ |
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| 摘 要： | 将工业废气中的CO2回收利用，使之变废为宝具有重要的意义。研究了活性炭(AC)分别经湿氧化和N2还原改性后对苯吸附性能，并测定了改性活性炭的孔结构和表面官能团。结果表明，AC经N2还原改性能增大其比表面积，减少表面含氧官能团，增强其表面非极性，有利于苯的吸附。孔径分布是影响苯吸附的主要因素，吸附剂的孔径分布在0.6nm范围内时,有利于对苯的吸附。
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| 关 键 词： | 活性炭 苯 吸附 湿氧化改性 |
| 收稿时间： | 2008-11-14 |
| 修稿时间： | 2009-3-4
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Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon |
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| LI Yuxue,ZHANG Yongchun.Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon[J].Journal of Chemical Industry and Engineering(China),2009,60(6):1494-1499. |
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| Authors: | LI Yuxue ZHANG Yongchun |
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| Affiliation: | State Key Laboratory of Fine Chemicals;Dalian University of Technology;Dalian 116012;Liaoning;China |
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| Abstract: | It is significant to recover CO2 from industrial tail gases.Adsorption of low concentration benzene on activated carbon was studied.Activated carbon was treated with wet oxidized reagent and N2 reduction.Pore structure of modified activated carbon was characterized by N2(77 K) adsorption isotherm.Boehm titration,Fourier transform infrared spectroscopy(FTIR) were used to characterize the surface properties.N2 reduction increased the surface area of AC and total pore volume,reduced the amount of surface group... |
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| Keywords: | activated carbon benzene adsorption wet oxidation modification |
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