MODIFIED POLANYI-DUBININ EQUATION TO CORRELATE ADSORPTION EQUILIBRIUM OF VOC-WATER VAPOR MIXTURES ON ACTIVATED CARBON

GAO Huasheng; WANG Dahui; YE Yunchun; TAN Tianen

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MODIFIED POLANYI-DUBININ EQUATION TO CORRELATE ADSORPTION EQUILIBRIUM OF VOC-WATER VAPOR MIXTURES ON ACTIVATED CARBON

更新时间：2025-12-10

- MODIFIED POLANYI-DUBININ EQUATION TO CORRELATE ADSORPTION EQUILIBRIUM OF VOC-WATER VAPOR MIXTURES ON ACTIVATED CARBON
- CIESC Journal Issue 4, (2001)
- 作者机构：
  
  1. 浙江大学化学工程学系
  2. 镇海炼油化工股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 2001，
  
  Published：25 April 2001
- 稿件说明：
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GAO Huasheng, WANG Dahui, YE Yunchun, et al. MODIFIED POLANYI-DUBININ EQUATION TO CORRELATE ADSORPTION EQUILIBRIUM OF VOC-WATER VAPOR MIXTURES ON ACTIVATED CARBON[J]. CIESC Journal, 2001, (4).
DOI：

GAO Huasheng, WANG Dahui, YE Yunchun, et al. MODIFIED POLANYI-DUBININ EQUATION TO CORRELATE ADSORPTION EQUILIBRIUM OF VOC-WATER VAPOR MIXTURES ON ACTIVATED CARBON[J]. CIESC Journal, 2001, (4). DOI：

摘要

Abstract

Long-column method was used to determine the adsorption isotherms of 4 VOCs (benzene

toluene

chloroform and acetone) in concentration range of 250～5000mg·m-3 on a commercial activated-carbon under different humidity levels at 30℃.A modified Polanyi-Dubinin equation was proposed to correlate the adsorption equilibrium of different VOC-water vapor systems. Among 3 methods of calculating the Relative Affinity Coefficient β used

the Molar Volume method and the Molecular Parachor method proved to be suitable for the calculation with better precision than the Electronic Polarization method. Calculation results were satisfactory for the benzene-

toluene-

and chloroform-water vapor/activated carbon systems

but poor for acetone possibly because of its strong polarity.The equation could be used to estimate the detaining effect of atmospheric humidity on the adsorption equilibrium of VOCs on activated carbon.

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