Novel Supported Ionic Liquid Adsorbents for Hydrogen Sulphide Removal from Biogas
2
Issued Date
2024-01-01
Resource Type
eISSN
22998993
Scopus ID
2-s2.0-85187518344
Journal Title
Journal of Ecological Engineering
Volume
25
Issue
4
Start Page
66
End Page
79
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Ecological Engineering Vol.25 No.4 (2024) , 66-79
Suggested Citation
Saffiee N., Salleh M.Z.M., Isahak W.N.R.W., Suja F., Ding G.T., Sittijunda S., Abdul P.M. Novel Supported Ionic Liquid Adsorbents for Hydrogen Sulphide Removal from Biogas. Journal of Ecological Engineering Vol.25 No.4 (2024) , 66-79. 79. doi:10.12911/22998993/183649 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/97693
Title
Novel Supported Ionic Liquid Adsorbents for Hydrogen Sulphide Removal from Biogas
Corresponding Author(s)
Other Contributor(s)
Abstract
The imidazolium-based supported ionic liquids (IL) in activated carbon (AC) is an exciting strategy for developing new adsorbents for H2S removal from biogas. In this work, the influence of IL on AC was discovered by examining the effect of ultrasonic stirring as an impregnation method, AC particle size and IL anion type. AC300μm-[Bmim]Cl-U5 demonstrated the highest H2S adsorption capacity of 8.25±0.38 mg H2S/g and was obtained through [Bmim]Cl impregnated on 300 μm AC size through the ultrasonic stirring for five minutes at room temperature. The adsorption/desorption study confirmed the regeneration ability of AC300μm-[Bmim]Cl-U5 up to three cycles with a maximum adsorption capacity of 14.24±0.43 mg H2S/g. The SEM images confirmed the presence of IL on the AC surface and were further explained through BET analysis. TGA measurement indicated the thermal stability of pristine IL, the fresh and exhausted adsorbent. Therefore, this study proved the potential of ultrasonic-assisted supported IL as a promising adsorbent for H2S removal from biogas that exhibits excellent properties in high adsorption capacity and thermal stability.