Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system
This research article discusses the effect of different chemical matrices used for the immobilization of microalgae cells of Chlorella vulgaris on oil extraction in terms of oil yield, kinetic values, and thermodynamic values. The experimental procedures began with microalgae cultivation, immobiliza...
| Main Authors: | , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IOP Publishing
2020
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/30427/ http://umpir.ump.edu.my/id/eprint/30427/1/Kinetics%20studies%20and%20thermodynamics%20of%20oil%20extraction.pdf |
| _version_ | 1848823511129260032 |
|---|---|
| author | Nagaarasan, Ramesh Nur Hidayah, Mat Yasin Zatul Iffah, Mohd Arshad |
| author_facet | Nagaarasan, Ramesh Nur Hidayah, Mat Yasin Zatul Iffah, Mohd Arshad |
| author_sort | Nagaarasan, Ramesh |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This research article discusses the effect of different chemical matrices used for the immobilization of microalgae cells of Chlorella vulgaris on oil extraction in terms of oil yield, kinetic values, and thermodynamic values. The experimental procedures began with microalgae cultivation, immobilization of microalgae, microalgae harvesting, and oil extraction. For the immobilization method, the matrix systems involved were sodium alginate (SA), calcium alginate (CA), and sodium carboxymethyl cellulose (CMC). For the oil extraction process, heptane was used as an only solvent at different temperature and extraction time. The amount of oil extracted from the SA system was found to be the highest compared to other chemical matrix systems, which is 25.11 % at 348 K. The values of the reaction rate constants were found to increase with temperature and extraction time for SA and the activation energy was determined to be 39.6636 kJ/mol, which is lowest among the systems. Moreover, with the enthalpy value of 0.115 kJ/mol, the extraction process using the SA system is endothermic and was found to be industrially more feasible process compared to other matrix systems. Hence, the results proved that the immobilization of microalgae for biodiesel production is considerable for the future biofuel industry. |
| first_indexed | 2025-11-15T02:58:18Z |
| format | Conference or Workshop Item |
| id | ump-30427 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:58:18Z |
| publishDate | 2020 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-304272021-01-04T08:38:46Z http://umpir.ump.edu.my/id/eprint/30427/ Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system Nagaarasan, Ramesh Nur Hidayah, Mat Yasin Zatul Iffah, Mohd Arshad TP Chemical technology This research article discusses the effect of different chemical matrices used for the immobilization of microalgae cells of Chlorella vulgaris on oil extraction in terms of oil yield, kinetic values, and thermodynamic values. The experimental procedures began with microalgae cultivation, immobilization of microalgae, microalgae harvesting, and oil extraction. For the immobilization method, the matrix systems involved were sodium alginate (SA), calcium alginate (CA), and sodium carboxymethyl cellulose (CMC). For the oil extraction process, heptane was used as an only solvent at different temperature and extraction time. The amount of oil extracted from the SA system was found to be the highest compared to other chemical matrix systems, which is 25.11 % at 348 K. The values of the reaction rate constants were found to increase with temperature and extraction time for SA and the activation energy was determined to be 39.6636 kJ/mol, which is lowest among the systems. Moreover, with the enthalpy value of 0.115 kJ/mol, the extraction process using the SA system is endothermic and was found to be industrially more feasible process compared to other matrix systems. Hence, the results proved that the immobilization of microalgae for biodiesel production is considerable for the future biofuel industry. IOP Publishing 2020 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/30427/1/Kinetics%20studies%20and%20thermodynamics%20of%20oil%20extraction.pdf Nagaarasan, Ramesh and Nur Hidayah, Mat Yasin and Zatul Iffah, Mohd Arshad (2020) Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system. In: IOP Conference Series: Materials Science and Engineering, 5th International Conference of Chemical Engineering and Industrial Biotechnology (ICCEIB 2020) , 9-11 August 2020 , Kuala Lumpur, Malaysia. pp. 1-12., 991 (012003). ISSN 1757-899X (Published) https://doi.org/10.1088/1757-899X/991/1/012003 |
| spellingShingle | TP Chemical technology Nagaarasan, Ramesh Nur Hidayah, Mat Yasin Zatul Iffah, Mohd Arshad Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system |
| title | Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system |
| title_full | Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system |
| title_fullStr | Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system |
| title_full_unstemmed | Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system |
| title_short | Kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of Chlorella vulgaris: The effect of the different matrix system |
| title_sort | kinetics studies and thermodynamics of oil extraction from immobilized microalgae cells of chlorella vulgaris: the effect of the different matrix system |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/30427/ http://umpir.ump.edu.my/id/eprint/30427/ http://umpir.ump.edu.my/id/eprint/30427/1/Kinetics%20studies%20and%20thermodynamics%20of%20oil%20extraction.pdf |