| 沥青基球状活性炭气相吸脱附行为研究 |
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| 引用本文： | 宋燕,凌立成,乔文明,李开喜,吕春祥,刘朗. 沥青基球状活性炭气相吸脱附行为研究[J]. 离子交换与吸附, 2001, 17(6): 481-486 |
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| 作者姓名： | 宋燕 凌立成 乔文明 李开喜 吕春祥 刘朗 |
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| 作者单位： | 中国科学院 |
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| 基金项目： | 国家863项目(863-715-002-0192) |
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| 摘 要： | 本文利用热重法研究了一系列沥青基球状活性炭对蒸汽及正已烷蒸汽的动态吸脱附曲线。结果表明，PSAC对苯蒸汽的吸附及再生性能优良。随吸附温度的降低、比表面积的增大、总孔容及微孔容的增大，PSAC对苯蒸汽的吸附容量增大。PSAC对正已烷的吸附速度大于对苯蒸汽的吸附速度，但其对正已烷的平衡吸附容量小于对苯蒸汽的平衡吸附容量。
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| 关 键 词： | 热重法 吸附速度 平衡吸附量 沥青基球状活性炭 吸附性能 动态吸附 动态脱附 苯蒸汽 正已烷蒸汽 |
| 文章编号： | 1001-5493(2001)06-0486-06 |
| 修稿时间： | 2001-04-16 |
DYNAMIC ADSORPTION/DESORPTION BEHAVIOR OF PITCH BASED-SPHERICAL ACTIVATED CARBON |
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| SONG Yan LING Licheng QIAO Wenming LI Kaixi LU Chunxiang LIU Liang State Key Laboratory of Coal Conversion. DYNAMIC ADSORPTION/DESORPTION BEHAVIOR OF PITCH BASED-SPHERICAL ACTIVATED CARBON[J]. Ion Exchange and Adsorption, 2001, 17(6): 481-486 |
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| Authors: | SONG Yan LING Licheng QIAO Wenming LI Kaixi LU Chunxiang LIU Liang State Key Laboratory of Coal Conversion |
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| Affiliation: | SONG Yan LING Licheng QIAO Wenming LI Kaixi LU Chunxiang LIU Liang State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan,030001 |
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| Abstract: | The dynamic adsorption/desorption behavior of benzene and n-hexane vapor on pitch based-spherical activated carbon (PSAC) was investigated using thermogravimetry (TG). The results showed that the adsorption capacity of benzene on PSAC increased with the increasing of BET surface area, total pore volume and micropore volume, and decreased with the increasing of adsorption temperature. The adsorption rate of n-hexane was faster than that of benzene, while the equilibrium adsorption capacity was lower. There was no significant decrease of benzene adsorption capacity on PSAC after regeneration. |
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| Keywords: | TG Dynamic adsorption/desorption curve Adsorption rate Equilibrium adsorption capacity. |
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