Improved isotherm data for adsorption of methane on activated carbons

Wai Soong Loh; Kazi Afzalur Rahman; Anutosh Chakraborty; Bidyut Baran Saha; Yoo Sang Choo; Boo Cheong Khoo; Kim Choon Ng

doi:10.1021/je901011c

Improved isotherm data for adsorption of methane on activated carbons

Wai Soong Loh, Kazi Afzalur Rahman, Anutosh Chakraborty, Bidyut Baran Saha, Yoo Sang Choo, Boo Cheong Khoo, Kim Choon Ng

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

This article presents the adsorption isotherms of methane onto two different types of activated carbons, namely, Maxsorb III and ACF (A-20) at temperatures from (5 to 75) °C and pressures up to 2.5 MPa. The volumetric technique has been employed to measure the adsorption isotherms. The experimental results presented herein demonstrate the improved accuracy of the uptake values compared with previous measurement techniques for similar adsorbate-adsorbent combinations. The results are analyzed with various adsorption isotherm models. The heat of adsorption, which is concentration and temperature dependent, has been calculated from the measured isotherm data. Henry's law coefficients for these adsorbent-methane pairs are also evaluated at various temperatures.

Original language	English
Pages (from-to)	2840-2847
Number of pages	8
Journal	Journal of Chemical and Engineering Data
Volume	55
Issue number	8
DOIs	https://doi.org/10.1021/je901011c
Publication status	Published - Aug 12 2010

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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title = "Improved isotherm data for adsorption of methane on activated carbons",

abstract = "This article presents the adsorption isotherms of methane onto two different types of activated carbons, namely, Maxsorb III and ACF (A-20) at temperatures from (5 to 75) °C and pressures up to 2.5 MPa. The volumetric technique has been employed to measure the adsorption isotherms. The experimental results presented herein demonstrate the improved accuracy of the uptake values compared with previous measurement techniques for similar adsorbate-adsorbent combinations. The results are analyzed with various adsorption isotherm models. The heat of adsorption, which is concentration and temperature dependent, has been calculated from the measured isotherm data. Henry's law coefficients for these adsorbent-methane pairs are also evaluated at various temperatures.",

author = "Loh, {Wai Soong} and Rahman, {Kazi Afzalur} and Anutosh Chakraborty and Saha, {Bidyut Baran} and Choo, {Yoo Sang} and Khoo, {Boo Cheong} and Ng, {Kim Choon}",

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AU - Loh, Wai Soong

AU - Rahman, Kazi Afzalur

AU - Chakraborty, Anutosh

AU - Saha, Bidyut Baran

AU - Choo, Yoo Sang

AU - Khoo, Boo Cheong

AU - Ng, Kim Choon

PY - 2010/8/12

Y1 - 2010/8/12

N2 - This article presents the adsorption isotherms of methane onto two different types of activated carbons, namely, Maxsorb III and ACF (A-20) at temperatures from (5 to 75) °C and pressures up to 2.5 MPa. The volumetric technique has been employed to measure the adsorption isotherms. The experimental results presented herein demonstrate the improved accuracy of the uptake values compared with previous measurement techniques for similar adsorbate-adsorbent combinations. The results are analyzed with various adsorption isotherm models. The heat of adsorption, which is concentration and temperature dependent, has been calculated from the measured isotherm data. Henry's law coefficients for these adsorbent-methane pairs are also evaluated at various temperatures.

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Improved isotherm data for adsorption of methane on activated carbons

Abstract

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