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Optimization of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor

Mohd Affandi, Mohd Ali and Jolius, Gimbun and Cheng, C. K. and R. M., Yunus (2015) Optimization of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor. Chemical Engineering Transactions, 45. pp. 1279-1284. ISSN 2283-9216

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This paper presents the design and performance evaluation of a continuous microwave assisted reactor (CMAR) system to produce biodiesel from the transesterification of waste cooking oil (WCO). The labfabricated CMAR employed an integrated proportional-integral-derivative controller for accurate temperature and reactant flowrate controls. The fatty acid methyl esters (FAME) contents in the sample were determined using gas chromatography mass spectrometry (GC-MS). The results from two-level factorial design showed that the methanol to oil molar ratio, amount of NaOCH3 catalyst and reaction time affected the biodiesel conversion markedly, with the significance of 45.99 %, 6.76 % and 3.21 %. The optimum biodiesel conversion of circa 97.83 % was achieved at 0.68 wt% of catalyst loading, 11.62:1 of methanol to oil molar ratio and 4.47 min of reaction time using the response surface method (RSM) generated by the Box Behnken design. Experimental validation of the optimum condition showed an excellent adherence, with a minimum deviation of 0.88 % in three replicates. The biodiesel produced in this work also met the specification of ASTM D6751.

Item Type: Article
Uncontrolled Keywords: Waste Cooking Oil; Continuous microwave assisted reactor (CMAR) system;
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Chemical & Natural Resources Engineering
Depositing User: P. M. Dr. Jolius Gimbun
Date Deposited: 29 Jan 2016 06:07
Last Modified: 11 Jan 2018 03:25
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