General Information
    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
    • Executive Editor: Mr. Ron C. Wu
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Editor-in-chief
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan
 

IJCEA 2014 Vol.5(4): 342-346 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2014.V5.406

CO2 Capture Using Silica and Molecular Sieve Impregnated with [hmim][Tf2N]

Md. Nurul Safiah, Bustam M. Azmi, and M. Yunus Normawati
Abstract—Solid supported ionic liquid can provide high surface area for better CO2 adsorption as well as reduces the amount of ionic liquid used for CO2 absorption. In the present work, SiO2 and Molecular Sieve were impregnated with 10wt% of [hmim][Tf2N], and tested for CO2 adsorption at 10-40 bar. From the screening process, 10%[hmim][Tf2N]-Si was observed to give higher CO2 adsorption compared to [hmim][Tf2N]-MolSieve, and 10%[hmim][Tf2N]-Si was selected for further investigation. The experiment was further investigated by measuring CO2 adsorption at 25, 40, and 60 oC. using 10%[hmim][Tf2N]-Si. The highest CO2 captured showed by 10%[hmim][Tf2N]-Si was at 298 K. The CO2 adsorption was also modeled using Langmuir and Freundlich isotherms, and the adsorption was best fitted using Freundlich isotherm at 25 oC with 0.9813 R2 value.

Index Terms—[hmim][Tf2N], solid support ionic liquid, CO2 adsorption, adsorption isotherm.

Md. Nurul Safiah and Bustam M. Azmi are with Chemical Engineering Department, Universiti Teknologi PETRONAS, 31750 Perak, Malaysia (e-mail: safiahdagang@gmail.com).
M. Yunus Normawati is with Fundamental and Applied Science Department, Universiti Teknologi PETRONAS, 31750 Perak, Malaysia (e-mail: normaw@petronas.com.my).

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Cite: Md. Nurul Safiah, Bustam M. Azmi, and M. Yunus Normawati, "CO2 Capture Using Silica and Molecular Sieve Impregnated with [hmim][Tf2N]," International Journal of Chemical Engineering and Applications vol. 5, no. 4 pp. 342-346, 2014.

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