Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry
The present work demonstrates the performance of hollow fibre membranes fabricated using polyvinyl chloride, polystyrene (EPS) and polydimethylsiloxane (PDMS) coupled with 30% monoethanolamine (MEA) in a gas liquid membrane contactor (GLMC) for the absorption of carbon dioxide. A gas mixture with a...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Chemical Engineering Journal Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266682112400019X |
| _version_ | 1797247699012026368 |
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| author | Nomcebo P. Khumalo Bhekie B. Mamba Mxolisi M. Motsa |
| author_facet | Nomcebo P. Khumalo Bhekie B. Mamba Mxolisi M. Motsa |
| author_sort | Nomcebo P. Khumalo |
| collection | DOAJ |
| description | The present work demonstrates the performance of hollow fibre membranes fabricated using polyvinyl chloride, polystyrene (EPS) and polydimethylsiloxane (PDMS) coupled with 30% monoethanolamine (MEA) in a gas liquid membrane contactor (GLMC) for the absorption of carbon dioxide. A gas mixture with a composition of (50/50 v/v%) methane (CH4) and (CO2) was used to assess the efficiency of the prepared membranes in the removal of carbon dioxide. Then HFM 3 which showed high CO2 removal was used to separate a mixture of nitrogen (N2)/oxygen(O2)/carbon dioxide (CO2) with a composition of (73/18/9 v/v%), respectively. Four different absorption liquids: 30 % MEA solution, 30 % EDA solution, 30 % MEA – graphene oxide (GO) and 30 % EDA-GO nanofluids were coupled with HFM3 to analyse the efficiency of the different amine liquids in CO2 absorption in GLMC. The 30 % EDA-GO solution showed an increase in the efficiency of CO2 absorption. The nanofluids showed an enhancement factor for CO2 absorption in the nanofluid was 121 % and 117 % for MEA-GO and EDA-GO, respectively. This enhancement was attributed to the hydrodynamic effects and Brownian motion of graphene oxide in the amine liquids. 30 % EDA solution infused with 0.2 mg/ml graphene oxide nanoparticles achieved the highest loading of carbon dioxide 0.25 mol/ cm3. |
| first_indexed | 2024-04-24T20:02:50Z |
| format | Article |
| id | doaj.art-bdc5c82bd4944033871a1768a93d2300 |
| institution | Directory Open Access Journal |
| issn | 2666-8211 |
| language | English |
| last_indexed | 2024-04-24T20:02:50Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj.art-bdc5c82bd4944033871a1768a93d23002024-03-24T07:02:02ZengElsevierChemical Engineering Journal Advances2666-82112024-05-0118100601Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistryNomcebo P. Khumalo0Bhekie B. Mamba1Mxolisi M. Motsa2Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Science Campus, Florida 1709, Johannesburg, South AfricaInstitute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Science Campus, Florida 1709, Johannesburg, South AfricaCorresponding author.; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Science Campus, Florida 1709, Johannesburg, South AfricaThe present work demonstrates the performance of hollow fibre membranes fabricated using polyvinyl chloride, polystyrene (EPS) and polydimethylsiloxane (PDMS) coupled with 30% monoethanolamine (MEA) in a gas liquid membrane contactor (GLMC) for the absorption of carbon dioxide. A gas mixture with a composition of (50/50 v/v%) methane (CH4) and (CO2) was used to assess the efficiency of the prepared membranes in the removal of carbon dioxide. Then HFM 3 which showed high CO2 removal was used to separate a mixture of nitrogen (N2)/oxygen(O2)/carbon dioxide (CO2) with a composition of (73/18/9 v/v%), respectively. Four different absorption liquids: 30 % MEA solution, 30 % EDA solution, 30 % MEA – graphene oxide (GO) and 30 % EDA-GO nanofluids were coupled with HFM3 to analyse the efficiency of the different amine liquids in CO2 absorption in GLMC. The 30 % EDA-GO solution showed an increase in the efficiency of CO2 absorption. The nanofluids showed an enhancement factor for CO2 absorption in the nanofluid was 121 % and 117 % for MEA-GO and EDA-GO, respectively. This enhancement was attributed to the hydrodynamic effects and Brownian motion of graphene oxide in the amine liquids. 30 % EDA solution infused with 0.2 mg/ml graphene oxide nanoparticles achieved the highest loading of carbon dioxide 0.25 mol/ cm3.http://www.sciencedirect.com/science/article/pii/S266682112400019XHollow fibre membranesHydrophobicityGas liquid membrane contactorCarbon dioxide absorption |
| spellingShingle | Nomcebo P. Khumalo Bhekie B. Mamba Mxolisi M. Motsa Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry Chemical Engineering Journal Advances Hollow fibre membranes Hydrophobicity Gas liquid membrane contactor Carbon dioxide absorption |
| title | Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry |
| title_full | Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry |
| title_fullStr | Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry |
| title_full_unstemmed | Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry |
| title_short | Carbon dioxide absorption in a gas-liquid membrane contactor: Influence of membrane properties and absorbent chemistry |
| title_sort | carbon dioxide absorption in a gas liquid membrane contactor influence of membrane properties and absorbent chemistry |
| topic | Hollow fibre membranes Hydrophobicity Gas liquid membrane contactor Carbon dioxide absorption |
| url | http://www.sciencedirect.com/science/article/pii/S266682112400019X |
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