Biodiesel production from recycled grease trap waste: a case study in South Australia. Part 2: optimization of the transesterification process
| dc.contributor.author | Tran, N. | |
| dc.contributor.author | McMurchie, E. | |
| dc.contributor.author | Ngothai, Y. | |
| dc.date.issued | 2018 | |
| dc.description.abstract | This study aimed to investigate the conversion of the pre‐treated oil, which was originally extracted from grease trap waste (GTW), to biodiesel via a transesterification reaction. The pre‐treated oil, which consists of approximately 80% free fatty acid ethyl esters (FAEEs) and 18% of glycerides, was obtained through the esterification of GTW reported in a previous study. Response Surface Methodology (RSM) based on Central Composite Design (CCD) was applied to determine the optimum conditions for the transesterification reaction through four process variables, these being: the molar ratio of ethanol to oil, reaction time, reaction temperature, and base catalyst loading. A set of 30 experiments were conducted in duplicate to study the interactive effects of the above parameters on the ester yield. A maximum ester yield of 96.7% was obtained at the optimum conditions, which were: 4:1 ethanol to oil molar ratio, 1 hr reaction time, 65 °C reaction temperature, and 1 wt% KOH loading per oil weight. In order to reduce the excess ethanol used, a modification was applied to the experimental design of the transesterification reaction, resulting in a 30% reduction in ethanol used, while the same ester yield could be obtained. | |
| dc.description.statementofresponsibility | Nghiep N. Tran, Edward J. McMurchie and Yung Ngothai | |
| dc.identifier.citation | ChemistrySelect, 2018; 3(13):3626-3631 | |
| dc.identifier.doi | 10.1002/slct.201800064 | |
| dc.identifier.issn | 2365-6549 | |
| dc.identifier.issn | 2365-6549 | |
| dc.identifier.orcid | Tran, N. [0000-0001-7199-7299] | |
| dc.identifier.orcid | Ngothai, Y. [0000-0002-0199-4225] | |
| dc.identifier.uri | http://hdl.handle.net/2440/119164 | |
| dc.language.iso | en | |
| dc.publisher | Wiley | |
| dc.rights | © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim | |
| dc.source.uri | https://doi.org/10.1002/slct.201800064 | |
| dc.subject | Biodiesel; ethanol; grease trap waste; response surface methods; transesterification | |
| dc.title | Biodiesel production from recycled grease trap waste: a case study in South Australia. Part 2: optimization of the transesterification process | |
| dc.type | Journal article | |
| pubs.publication-status | Published |