Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization
This work proposes the optimization of 2-ethylhexyl (2-EH) caprylate/caprate synthesis in a pulsed loop reactor, and the energy efficiency of the reactor was assessed. 2-EH caprylate/caprate can be used as a biodegradable base fluid. Only 0.4 wt% catalyst concentration was used in the reaction. The...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/87302/ http://psasir.upm.edu.my/id/eprint/87302/1/Process%20intensification%20of%202.pdf |
| _version_ | 1848860411017822208 |
|---|---|
| author | Razali, Siti Zulaika Yunus, Robiah Abdul Rashid, Suraya Lim, Hong Ngee B., Mohamad Jan Hamid, H. A. |
| author_facet | Razali, Siti Zulaika Yunus, Robiah Abdul Rashid, Suraya Lim, Hong Ngee B., Mohamad Jan Hamid, H. A. |
| author_sort | Razali, Siti Zulaika |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This work proposes the optimization of 2-ethylhexyl (2-EH) caprylate/caprate synthesis in a pulsed loop reactor, and the energy efficiency of the reactor was assessed. 2-EH caprylate/caprate can be used as a biodegradable base fluid. Only 0.4 wt% catalyst concentration was used in the reaction. The face-centred central composite design (FCCD) experiment coupled response surface methodology (RSM) has been implemented to screen independent parameters. The optimization process showed that vacuum pressure was the most influential factor followed by oscillation speed, temperature and time. The maximum conversion of 98 % and yield of 89 % were achieved under optimal conditions of 78 °C, 10 mbar, 20 min and 155 rpm. Meanwhile, energy balance calculation indicated that the usage of low vacuum pressure not only significantly reduced the total heat duty from 1381 kJ (1 atm) to 823 kJ (10 mbar) but also alleviated the reaction temperature from 172 °C (1 atm) to 78 °C (10 mbar). The calculation also demonstrated that the reflux-stirred tank reactor produced a lower conversion and yield of ester yet 6 kJ higher total heat duty compared to the pulsed loop reactor, indicating a cost-saving with the pulsed loop reactor.
ROBIAH BINTI YUNUS// SITI ZULAIKA BINTI RAZALI, SURAYA BINTI ABDUL RASHID, LIM HONG NGEE/ |
| first_indexed | 2025-11-15T12:44:48Z |
| format | Article |
| id | upm-87302 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:44:48Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-873022022-02-06T06:36:06Z http://psasir.upm.edu.my/id/eprint/87302/ Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization Razali, Siti Zulaika Yunus, Robiah Abdul Rashid, Suraya Lim, Hong Ngee B., Mohamad Jan Hamid, H. A. This work proposes the optimization of 2-ethylhexyl (2-EH) caprylate/caprate synthesis in a pulsed loop reactor, and the energy efficiency of the reactor was assessed. 2-EH caprylate/caprate can be used as a biodegradable base fluid. Only 0.4 wt% catalyst concentration was used in the reaction. The face-centred central composite design (FCCD) experiment coupled response surface methodology (RSM) has been implemented to screen independent parameters. The optimization process showed that vacuum pressure was the most influential factor followed by oscillation speed, temperature and time. The maximum conversion of 98 % and yield of 89 % were achieved under optimal conditions of 78 °C, 10 mbar, 20 min and 155 rpm. Meanwhile, energy balance calculation indicated that the usage of low vacuum pressure not only significantly reduced the total heat duty from 1381 kJ (1 atm) to 823 kJ (10 mbar) but also alleviated the reaction temperature from 172 °C (1 atm) to 78 °C (10 mbar). The calculation also demonstrated that the reflux-stirred tank reactor produced a lower conversion and yield of ester yet 6 kJ higher total heat duty compared to the pulsed loop reactor, indicating a cost-saving with the pulsed loop reactor. ROBIAH BINTI YUNUS// SITI ZULAIKA BINTI RAZALI, SURAYA BINTI ABDUL RASHID, LIM HONG NGEE/ Elsevier 2020-03 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87302/1/Process%20intensification%20of%202.pdf Razali, Siti Zulaika and Yunus, Robiah and Abdul Rashid, Suraya and Lim, Hong Ngee and B., Mohamad Jan and Hamid, H. A. (2020) Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization. Chemical Engineering and Processing - Process Intensification, 149. art. no. 107837. pp. 1-12. ISSN 0255-2701 https://www.sciencedirect.com/science/article/abs/pii/S0255270119313327 10.1016/j.cep.2020.107837 |
| spellingShingle | Razali, Siti Zulaika Yunus, Robiah Abdul Rashid, Suraya Lim, Hong Ngee B., Mohamad Jan Hamid, H. A. Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization |
| title | Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization |
| title_full | Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization |
| title_fullStr | Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization |
| title_full_unstemmed | Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization |
| title_short | Process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: Multi-objective optimization |
| title_sort | process intensification of 2-ethylhexyl caprylate/caprate synthesis via a pulsed loop reactor: multi-objective optimization |
| url | http://psasir.upm.edu.my/id/eprint/87302/ http://psasir.upm.edu.my/id/eprint/87302/ http://psasir.upm.edu.my/id/eprint/87302/ http://psasir.upm.edu.my/id/eprint/87302/1/Process%20intensification%20of%202.pdf |