Zhu, HL;
Papurello, D;
Gandiglio, M;
Lanzini, A;
Akpinar, I;
Shearing, PR;
Manos, G;
... Zhang, YS; + view all
(2020)
Study of H2S Removal Capability from Simulated Biogas by Using Waste-Derived Adsorbent Materials.
Processes
, 8
(9)
, Article 1030. 10.3390/pr8091030.
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Abstract
Three waste-derived adsorbent materials (wood-derived biochar, sludge-derived activated carbon and activated ash) were pre-activated at the laboratory scale to apply them for the removal of H2S from a biogas stream. The H2S removal capabilities of each material were measured by a mass spectrometer, to detect the H2S concentration after the adsorption in an ambient environment. The activated ash adsorbent has the highest removal capacity at 3.22 mgH2S g−1, while wood-derived biochar has slightly lower H2S removal capability (2.2 mgH2S g−1). The physicochemical properties of pristine and spent materials were characterized by the thermogravimetric analyzer, elemental analysis, X-ray fluorescence spectroscopy and N2 adsorption and desorption. Wood-derived biochar is a highly porous material that adsorbs H2S by physical adsorption of the mesoporous structure. Activated ash is a non-porous material which adsorbs H2S by the reaction between the alkaline compositions and H2S. This study shows the great potential to apply waste-derived adsorbent materials to purify a biogas stream by removing H2S.
| Type: | Article |
|---|---|
| Title: | Study of H2S Removal Capability from Simulated Biogas by Using Waste-Derived Adsorbent Materials |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/pr8091030 |
| Publisher version: | https://doi.org/10.3390/pr8091030 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | activated carbon; waste; adsorption; biochar; H2S; circular economy; catalysis |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10109186 |
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