Measurement and Modeling of Adsorption of Lower Hydrocarbons on Activated Carbon
Measurement and Modeling of Adsorption of Lower Hydrocarbons on Activated Carbon
复制标题
活性炭上低级烃吸附的测量和模拟
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
A. Ghoshal
中科院分区：
文献类型：
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作者：
Gouri Shankar Cheripally;Ashok Mannava;G. Kumar;R. Gupta;Prabirkumar Saha;B. Mandal;R. Uppaluri;S. Gumma;A. Ghoshal
本工作报告了在三种不同温度（293 K、318 K和358 K）和宽的压力范围（0 bar至100 bar）下C1至C6烃在活性炭上的吸附等温线。使用标准重量法测量等温线。实验数据进行了相关性和比较使用Toth，修改维里，和潜在的理论模型。在吸附势的基础上，还生成了甲烷、乙烷、丙烷、异丁烷、正戊烷和正己烷在宽范围的压力和温度下在活性炭上的特征曲线。由势能理论预测的活性炭的膨胀体积与用77 K下的N2等温线测得的膨胀体积吻合得很好。吸附焓在零负荷被发现与碳数线性增加。
This work reports adsorption isotherms for C1 to C6 hydrocarbons on activated carbon at three different temperatures (293 K, 318 K, and 358 K) over a wide range of pressure (0 bar to 100 bar). The isotherms were measured using a standard gravimetric method. The experimental data were correlated and compared using Toth, modified virial, and potential theory models. On the basis of the adsorption potential, characteristic curves were also generated for methane, ethane, propane, isobutane, n-pentane, and n-hexane on activated carbon over broad ranges of pressure and temperatures. The micropore volume of the activated carbon predicted from potential theory was in good agreement with those obtained using a N2 isotherm measured at 77 K. The enthalpy of adsorption at zero loading was found to increase linearly with the carbon number.