Adsorption rate of ethanol on activated carbon fiber

Bidyut Baran Saha; Ibrahim I. El-Sharkawy; Anutosh Chakraborty; Shigeru Koyama; Seong Ho Yoon; Kim Choon Ng

doi:10.1021/je060071z

Adsorption rate of ethanol on activated carbon fiber

Bidyut Baran Saha^*, Ibrahim I. El-Sharkawy, Anutosh Chakraborty, Shigeru Koyama, Seong Ho Yoon, Kim Choon Ng

^*Corresponding author for this work

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

42 Scopus citations

Abstract

We have measured experimentally the adsorption kinetics of ethanol on pitch-based activated carbon fibers (ACFs) of type (A-20) at different adsorption temperatures ranging from 27 to 60 °C, which are suitable for adsorption chiller design. These data are unavailable in the literature. The mass uptake of ethanol adsorbed on ACF is measured by a thermogravimetric analyzer (TGA) under a controlled pressure and temperature environment. The uptake mass and temperature measurements are logged with a time interval of 0.5 s making a continuous change of ethanol mass uptake with time. System pressure is kept constant during the adsorption experiments and the adsorption rate of the ACF (A-20)/ethanol pair is estimated within the concentration range of 0.1 and 0.5 kg of adsorbate/kg of ACF. A comparison between the experimentally measured data and the predicted results of adsorption rate shows a good agreement, demonstrating the adsorption rate is mainly controlled by surface diffusion.

Original language	English (US)
Pages (from-to)	1587-1592
Number of pages	6
Journal	Journal of Chemical and Engineering Data
Volume	51
Issue number	5
DOIs	https://doi.org/10.1021/je060071z
State	Published - Sep 2006
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1021/je060071z

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title = "Adsorption rate of ethanol on activated carbon fiber",

abstract = "We have measured experimentally the adsorption kinetics of ethanol on pitch-based activated carbon fibers (ACFs) of type (A-20) at different adsorption temperatures ranging from 27 to 60 °C, which are suitable for adsorption chiller design. These data are unavailable in the literature. The mass uptake of ethanol adsorbed on ACF is measured by a thermogravimetric analyzer (TGA) under a controlled pressure and temperature environment. The uptake mass and temperature measurements are logged with a time interval of 0.5 s making a continuous change of ethanol mass uptake with time. System pressure is kept constant during the adsorption experiments and the adsorption rate of the ACF (A-20)/ethanol pair is estimated within the concentration range of 0.1 and 0.5 kg of adsorbate/kg of ACF. A comparison between the experimentally measured data and the predicted results of adsorption rate shows a good agreement, demonstrating the adsorption rate is mainly controlled by surface diffusion.",

author = "Saha, {Bidyut Baran} and El-Sharkawy, {Ibrahim I.} and Anutosh Chakraborty and Shigeru Koyama and Yoon, {Seong Ho} and Ng, {Kim Choon}",

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publisher = "American Chemical Society",

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T1 - Adsorption rate of ethanol on activated carbon fiber

AU - Saha, Bidyut Baran

AU - El-Sharkawy, Ibrahim I.

AU - Chakraborty, Anutosh

AU - Koyama, Shigeru

AU - Yoon, Seong Ho

AU - Ng, Kim Choon

PY - 2006/9

Y1 - 2006/9

N2 - We have measured experimentally the adsorption kinetics of ethanol on pitch-based activated carbon fibers (ACFs) of type (A-20) at different adsorption temperatures ranging from 27 to 60 °C, which are suitable for adsorption chiller design. These data are unavailable in the literature. The mass uptake of ethanol adsorbed on ACF is measured by a thermogravimetric analyzer (TGA) under a controlled pressure and temperature environment. The uptake mass and temperature measurements are logged with a time interval of 0.5 s making a continuous change of ethanol mass uptake with time. System pressure is kept constant during the adsorption experiments and the adsorption rate of the ACF (A-20)/ethanol pair is estimated within the concentration range of 0.1 and 0.5 kg of adsorbate/kg of ACF. A comparison between the experimentally measured data and the predicted results of adsorption rate shows a good agreement, demonstrating the adsorption rate is mainly controlled by surface diffusion.

AB - We have measured experimentally the adsorption kinetics of ethanol on pitch-based activated carbon fibers (ACFs) of type (A-20) at different adsorption temperatures ranging from 27 to 60 °C, which are suitable for adsorption chiller design. These data are unavailable in the literature. The mass uptake of ethanol adsorbed on ACF is measured by a thermogravimetric analyzer (TGA) under a controlled pressure and temperature environment. The uptake mass and temperature measurements are logged with a time interval of 0.5 s making a continuous change of ethanol mass uptake with time. System pressure is kept constant during the adsorption experiments and the adsorption rate of the ACF (A-20)/ethanol pair is estimated within the concentration range of 0.1 and 0.5 kg of adsorbate/kg of ACF. A comparison between the experimentally measured data and the predicted results of adsorption rate shows a good agreement, demonstrating the adsorption rate is mainly controlled by surface diffusion.

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Adsorption rate of ethanol on activated carbon fiber

Abstract

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