| 苯在活性炭纤维上吸附等温线的测定及分析 |
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| 引用本文： | HU Zu-mei,张艳,WANG Jin-qu,王胜强. 苯在活性炭纤维上吸附等温线的测定及分析[J]. 石油学报(石油加工), 2008, 24(4): 484-451 |
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| 作者姓名： | HU Zu-mei 张艳 WANG Jin-qu 王胜强 |
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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,辽宁,大连,116012 |
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| 摘 要： | 采用质量法在Cahn-2000高真空电子天平上测定了温度298～328K和压力0～1.5kPa条件下苯在活性炭纤维上的吸附等温线。用Langmuir方程处理实验数据，得到的吸附模型符合Langmuir模型，并根据吸附等温线用Clausius-Clapeyron方程计算出苯的等量吸附热。结果表明，苯的等量吸附热随着吸附量的增加而减小，由vant Hoff方程计算苯在活性炭纤维上的平均吸附热为39.79kJ/mol。
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| 关 键 词： | 苯 活性炭纤维 吸附 等温线 吸附热 |
| 收稿时间： | 2007-07-23 |
| 修稿时间： | 2008-01-03 |
MEASUREMENT AND ANALYSIS OF ADSORPTION ISOTHERMS OF BENZENE ON ACTIVATED CARBON FIBRE |
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| HU Zu-mei,ZHANG Yan,WANG Jin-qu,WANG Sheng-qiang. MEASUREMENT AND ANALYSIS OF ADSORPTION ISOTHERMS OF BENZENE ON ACTIVATED CARBON FIBRE[J]. Acta Petrolei Sinica (Petroleum Processing Section), 2008, 24(4): 484-451 |
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| Authors: | HU Zu-mei ZHANG Yan WANG Jin-qu WANG Sheng-qiang |
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| Abstract: | Adsorption isotherms of benzene on activated carbon fiber were studied in this paper. The equilibrium adsorption amounts of benzenze under 298K~328K and 0~1.995KPa were measured by gravimetric methods using a Cahn-2000 electrobalance. Experiment data were simulated by Langmuir equation commendably. Isometric heat of adsorption of benzene was calculated using Clausius – Clapeyron equation according to adsorption isotherms. It was proved that isometric heat of adsorption of benzene decreased with the increase of adsorption amount. The average heat of adsorption of benzene was 39.79KJ/mol calculated using Vant Hoff equation. |
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| Keywords: | benzene activated carbon fiber adsorption isotherm heat of adsorption |
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