Optimization of biodiesel production from waste cooking oil using Fe-Montmorillonite K10 by response surface methodology

Many countries produced biodiesel from crude vegetable oil. However, current vegetable oil feedstock to produce biodiesel slow the growth of biodiesel blend implementation due to the high cost of feedstock production. As a result, waste cooking oil (WCO) is claimed to be economic and readily availab...

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Bibliographic Details
Published in:	Renewable energy Vol. 157; pp. 164 - 172
Main Authors:	Yahya, Syahirah, Muhamad Wahab, Syamsul Kamar, Harun, Farah Wahida
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-09-2020
Subjects:	Biodiesel Montmorillonite K10 Optimization RSM Simultaneous esterification-transesterification Waste cooking oil Simultaneous esterification-transesterification Waste cooking oil Montmorillonite K10 Biodiesel RSM Optimization
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Summary:	Many countries produced biodiesel from crude vegetable oil. However, current vegetable oil feedstock to produce biodiesel slow the growth of biodiesel blend implementation due to the high cost of feedstock production. As a result, waste cooking oil (WCO) is claimed to be economic and readily available without cultivation and highly potential feedstock for high yield biodiesel. In this study, Fe-exchanged montmorillonite K10 (Fe-MMT K10) was employed as a catalyst in converting WCO to biodiesel. In comparison, Fe-MMT K10 was able to produce 95.26% biodiesel, which is higher than biodiesel produced using unmodified MMT K10 as catalyst and reaction without catalyst (38.39% and 29.50%, respectively). The full process of biodiesel production was carried out by response surface methodology (RSM) in conjunction with the central composite design (CCD) for statistically optimization and modelling. From the ANOVA, it was found that the production of biodiesel achieved an optimum level of 92.74% biodiesel at 134.07 °C, under a specific optimized condition of 6.32 h reaction time, 4.68 wt% of catalyst and 11.77:1 methanol to oil ratio. •Fe-MMTK10 was modified from montmorillonite clay using Fe via ion-exchange method.•XRF confirmed the increment of Fe from 1.69% to 3.46% after modification.•The acidity increased from 1.494 mmol/g to 14.261 mmol/g NH3 desorption.•92.74% biodiesel was produced from waste cooking oil using Fe-MMTK10 as catalyst.•Optimum condition was 134.07 °C, 6.32h, 4.68 wt% of catalyst and 11.77:1 methanol:oil.
ISSN:	0960-1481 1879-0682
DOI:	10.1016/j.renene.2020.04.149