High pressure adsorption isotherms of nitrogen onto granular activated carbon for a single bed pressure swing adsorption refrigeration system

Avinash V. Palodkar, Kumar Anupam, Zunipa Roy, B. B. Saha, G. N. Halder

    研究成果: ジャーナルへの寄稿学術誌査読

    8 被引用数 (Scopus)

    抄録

    Adsorption characteristics of nitrogen onto granular activated carbon for the wide range of temperature (303–323 K) and pressure (0.2027–2.0265 MPa) have been reported for a single bed pressure swing adsorption refrigeration system. The experimental data were fitted to Langmuir, Dubinin-Astakhov and Dubinin-Radushkevich (D-R) isotherms. The Langmuir and D-R isotherm models were found appropriate in correlating experimental adsorption data with an average relative error of ±2.0541% and ±0.6659% respectively. The isosteric heat of adsorption data were estimated as a function of surface coverage of nitrogen and temperature using D-R isotherm. The heat of adsorption was observed to decrease from 12.65 to 6.98 kJ.mol−1 with an increase in surface concentration at 303 K and it followed the same pattern for other temperatures. It was found that an increase in temperature enhances the magnitude of the heat of adsorption.

    本文言語英語
    ページ(範囲)3155-3166
    ページ数12
    ジャーナルHeat and Mass Transfer/Waerme- und Stoffuebertragung
    53
    10
    DOI
    出版ステータス出版済み - 10月 1 2017

    !!!All Science Journal Classification (ASJC) codes

    • 凝縮系物理学
    • 流体および伝熱

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