کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10611044 | 986035 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sorption kinetics of eight gases on a carbon molecular sieve at elevated pressure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sorption kinetics of eight gases on a carbon molecular sieve at elevated pressure Sorption kinetics of eight gases on a carbon molecular sieve at elevated pressure](/preview/png/10611044.png)
چکیده انگلیسی
The sorption kinetics of eight different molecules (O2, N2, Ar, CO, CO2, SO2, CH4 and H2) on a carbon molecular sieve was studied over a wide range of pressures up to 15Â atm by using a volumetric method. The acentric factor was suggested as a potential factor to estimate the relative sorption rate. Since the apparent time constants of all the components showed much stronger dependence of pressure than those expected by the traditional Darken relation and the structural diffusion model, new models with the diffusion relation at the supercritical condition was proposed to predict the kinetic behaviors in the micropores. The proposed model successfully predicted the apparent time constant up to high pressure. In addition, the semi-empirical model that combined acentric factor with the proposed model was able to predict the strong pressure dependence accurately. However, since the strong adsorbates, CO2 and SO2, showed two-stage kinetic behavior with pressure, which was different from that of the other adsorbates. The kinetic behaviors of these molecules could be predicted by using two different sorption models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 43, Issue 1, 2005, Pages 95-107
Journal: Carbon - Volume 43, Issue 1, 2005, Pages 95-107
نویسندگان
Y.-S. Bae, C.-H. Lee,