Carbon Dioxide Adsorption Using Activated Carbon via Chemical Vapor Deposition Process

Authors

  • Rewadee Anuwattana Thailand Institute of Scientific and Technological Research
  • Chaiwat Patkool Chulalongkorn University
  • Petchporn Chawakitchareon Chulalongkorn University

DOI:

https://doi.org/10.4186/ej.2016.20.4.59

Keywords:

Carbon molecular sieve, chemical vapor deposition, adsorption, carbon dioxide.

Abstract

This research aims to study the physical-chemical characteristics and carbon dioxide adsorption using commercial activated carbon (GAC) by comparing with commercial activated carbon. Chemical vapor deposition (CVD) of carbon molecular sieve prepared from activated carbon (CMSGAC) was prepared using acetylene at various conditions, such as temperature, time and acetylene flow rate. The results indicated that CMSGAC had high adsorption capacity and high selectivity for the adsorption ratio between carbon dioxide and methane. The experiments were carried out by using the samples of GAC, CMSGAC, and commercial carbon molecular sieve (CMSCOM) for adsorption of mixed gas of 30% CO2, 20% N2, and 50% CH4, respectively. The results showed that the adsorption efficiency at 50% of inlet carbon dioxide concentration of GAC, CMSGAC, and CMSCOM was at 85, 114, and 140 min, respectively. The purity of methane was 81.53, 93.16, and 98.26%, respectively. The selectivity for the adsorption ratio between carbon dioxide and methane was 1.32, 16.52, and 24.89, respectively. The cycle time of the samples was 3, 7, and 8 cycles, respectively. Finally, the maximum adsorption capacity of the samples was 1.74, 3.26, and 4.06 mole CO2/kg absorbent, respectively.

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Author Biographies

Rewadee Anuwattana

Environment and Resources Technology Department, Thailand Institute of Scientific and Technological Research, Pathumthani 12120, Thailand

Chaiwat Patkool

Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Petchporn Chawakitchareon

Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

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Published In
Vol 20 No 4, Aug 29, 2016
How to Cite
[1]
R. Anuwattana, C. Patkool, and P. Chawakitchareon, “Carbon Dioxide Adsorption Using Activated Carbon via Chemical Vapor Deposition Process”, Eng. J., vol. 20, no. 4, pp. 59-68, Aug. 2016.