Breakthrough Analysis of Empty Fruit Bunch-Based Hydrogel Biochar Composite (EFB-HBC) for Hydrogen Sulphide (H₂S) Adsorption Study Removal

DOI

10.2991/aer.k.201229.030How to use a DOI?

Keywords

Empty fruit bunch, biochar, hydrogel biochar, sorption, hydrogen sulphide

Abstract

Hydrogen sulphide (H2S) is always present in biogas, and causes odours, corrosiveness, and sulphur emissions when the gas is burned. It is used regularly in internal combustion engines, turbines or fuel cells, the removal of hydrogen sulphide from biogas is required to protect the equipment. More importantly, it causes respiratory complication when its concentration reaches above 50 ppm. Many technologies have been developed to remediate H2S contamination in flue gas, among which biochar is one of the most sustainable and promising. However, the biochar low porosity is major challenge as good adsorbent. Therefore, highly porous and inexpensive acrylamide was used to synthesize polyacrylamide hydrogel-biochar composites using microwave pyrolyzed raw and treated Empty Fruit Bunch (EFB) biochars as precursor. The phenol treated EFB-HBC composites significantly improved the surface chemistry of the composite and hence the adsorption capacity. According to the breakthrough curves, the maximum the sorption performance of H2S was optimum using a fine size of EFB-HBC highest adsorption capacity (102.9 mg/g) and breakthrough time of 85 minutes compared to other samples. Besides the greater swelling capacity, the significantly improved ability of HBC composite to entrap H2S from gas media was hypothetically attributed to the formation of ionic attraction fields around scattered biochar particles.

Copyright

© 2020, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Nik Muhammad Faisal Mat Yasin
AU  - Nor Hidayah Meri
AU  - Norhayati Talib
AU  - Wan Azlina Wan Abdul Karim Ghani
AU  - Zulkifli Abdul Rashid
AU  - Azil Bahari Alias
PY  - 2020
DA  - 2020/12/30
TI  - Breakthrough Analysis of Empty Fruit Bunch-Based Hydrogel Biochar Composite (EFB-HBC) for Hydrogen Sulphide (H₂S) Adsorption Study Removal
BT  - Proceedings of the Third International Conference on Separation Technology 2020 (ICoST 2020)
PB  - Atlantis Press
SP  - 216
EP  - 225
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.201229.030
DO  - 10.2991/aer.k.201229.030
ID  - Yasin2020
ER  -