Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas
HKUST-1 is a metal-organic framework (MOF) that is widely studied as an adsorbent for CO2 capture because of its high adsorption capacity and good CO2/CH4 selectivity. However, the numerous synthesis routes for HKUST-1 often result in the obtention of MOF in powder form, which limits its application...
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Multidisciplinary Digital Publishing Institute (MDPI)
2023
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oai:scholars.utp.edu.my:373562023-10-04T08:42:35Z http://scholars.utp.edu.my/id/eprint/37356/ Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas Rozaini, M.T. Grekov, D.I. Bustam, M.A. Pré, P. HKUST-1 is a metal-organic framework (MOF) that is widely studied as an adsorbent for CO2 capture because of its high adsorption capacity and good CO2/CH4 selectivity. However, the numerous synthesis routes for HKUST-1 often result in the obtention of MOF in powder form, which limits its application in industry. Here, we report the shaping of HKUST-1 powder via the extrusion method with the usage of bio-sourced polylactic acid (PLA) as a binder. The characterization of the composite was determined by XRD, FTIR, TGA and SEM analyses. The specific surface area was determined from the N2 adsorption isotherm, whereas the gas adsorption capacities were investigated via measurements of CO2 and CH4 isotherms of up to 10 bar at ambient temperature. The material characterization reveals that the composite preserves HKUST-1�s crystalline structure, morphology and textural properties. Furthermore, CO2 and CH4 adsorption isotherms show that there is no degradation of gravimetric gas adsorption capacity after shaping and the composite yields a similar isosteric adsorption heat as pristine HKUST-1 powder. However, some trade-offs could be observed, as the composite exhibits a lower bulk density than pristine HKUST-1 powder and PLA has no impact on pristine HKUST-1�s moisture stability. Overall, this study demonstrates the possibility of shaping commercial HKUST-1 powder, using PLA as a binder, into a larger solid-state-form adsorbent that is suitable for the separation of CO2 from CH4 with a well-preserved pristine MOF gas-adsorption performance. © 2023 by the authors. Multidisciplinary Digital Publishing Institute (MDPI) 2023 Article NonPeerReviewed Rozaini, M.T. and Grekov, D.I. and Bustam, M.A. and Pré, P. (2023) Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas. Separations, 10 (9). ISSN 22978739 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85172175996&doi=10.3390%2fseparations10090487&partnerID=40&md5=0e9eee78a366e391185d2c98ad4eceb2 10.3390/separations10090487 10.3390/separations10090487 10.3390/separations10090487 |
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HKUST-1 is a metal-organic framework (MOF) that is widely studied as an adsorbent for CO2 capture because of its high adsorption capacity and good CO2/CH4 selectivity. However, the numerous synthesis routes for HKUST-1 often result in the obtention of MOF in powder form, which limits its application in industry. Here, we report the shaping of HKUST-1 powder via the extrusion method with the usage of bio-sourced polylactic acid (PLA) as a binder. The characterization of the composite was determined by XRD, FTIR, TGA and SEM analyses. The specific surface area was determined from the N2 adsorption isotherm, whereas the gas adsorption capacities were investigated via measurements of CO2 and CH4 isotherms of up to 10 bar at ambient temperature. The material characterization reveals that the composite preserves HKUST-1�s crystalline structure, morphology and textural properties. Furthermore, CO2 and CH4 adsorption isotherms show that there is no degradation of gravimetric gas adsorption capacity after shaping and the composite yields a similar isosteric adsorption heat as pristine HKUST-1 powder. However, some trade-offs could be observed, as the composite exhibits a lower bulk density than pristine HKUST-1 powder and PLA has no impact on pristine HKUST-1�s moisture stability. Overall, this study demonstrates the possibility of shaping commercial HKUST-1 powder, using PLA as a binder, into a larger solid-state-form adsorbent that is suitable for the separation of CO2 from CH4 with a well-preserved pristine MOF gas-adsorption performance. © 2023 by the authors. |
| format |
Article |
| author |
Rozaini, M.T. Grekov, D.I. Bustam, M.A. Pré, P. |
| spellingShingle |
Rozaini, M.T. Grekov, D.I. Bustam, M.A. Pré, P. Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas |
| author_facet |
Rozaini, M.T. Grekov, D.I. Bustam, M.A. Pré, P. |
| author_sort |
Rozaini, M.T. |
| title |
Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas |
| title_short |
Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas |
| title_full |
Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas |
| title_fullStr |
Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas |
| title_full_unstemmed |
Shaping of HKUST-1 via Extrusion for the Separation of CO2/CH4 in Biogas |
| title_sort |
shaping of hkust-1 via extrusion for the separation of co2/ch4 in biogas |
| publisher |
Multidisciplinary Digital Publishing Institute (MDPI) |
| publishDate |
2023 |
| url |
http://scholars.utp.edu.my/id/eprint/37356/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85172175996&doi=10.3390%2fseparations10090487&partnerID=40&md5=0e9eee78a366e391185d2c98ad4eceb2 |
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1779441370372505600 |
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13.211869 |