Aboelazayem, Omar;
Saha, Basudeb;
Gadalla, Mamduh;
(2019)
Supercritical methanolysis of waste cooking oil for biodiesel synthesis: Experimental and simulation assessments.
In:
Proceedings of the 32nd International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact on Energy Systems.
Institute of Thermal Technology: Wroclaw, Poland.
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Abstract
Two-step esterification/transesterification process is considered as the most widely used technology for biodiesel synthesis from waste cooking oil (WCO). However, this process has currently been explored in a single step using supercritical technology due to its higher biodiesel yield and shorter reaction time. This paper presents experimental and simulation studies on biodiesel production from high acid value WCO using supercritical methanolysis. The effect of four reaction parameters on biodiesel production including methanol to oil (M:O) molar ratio, temperature, pressure and time has been investigated. Response surface methodology (RSM) has been used to develop an empirical regression equation representing reaction variables function in response variable. Analysis of variance (ANOVA) has been used to examine the accuracy of the predicted model. Optimisation of reaction variables has been performed to maximise biodiesel production. The optimal conditions for 99.1% and 97.5% overall conversions of triglycerides and free fatty acids (FFA), respectively have been reported at 25:1 M:O molar ratio, 265 oC temperature, 110 bar pressure and 18.5 min reaction time. A commercial simulation software (Aspen HYSYS) has been used to design and simulate the production process. The reaction has been simulated using the developed kinetic data at optimal conditions. A comparative analysis has been performed for results obtained experimentally, numerically and from simulation.
| Type: | Proceedings paper |
|---|---|
| Title: | Supercritical methanolysis of waste cooking oil for biodiesel synthesis: Experimental and simulation assessments |
| Event: | ECOS2019 – 32nd International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact on Energy Systems |
| Location: | Wroclaw, Poland |
| Dates: | 23 Jun 2019 - 28 Jun 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | http://www.s-conferences.eu/ecos2019 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Biodiesel, Supercritical technology, Process optimisation, Response surface methodology, Process simulation |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10150862 |
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