Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor

This paper presents an optimization study of waste cooking oil (WCO) transesterification in a continuous microwave assisted reactor (CMAR). The custom-built CMAR employed an integrated proportional-integral-derivative controller for accurate control of temperature and reactant flowrate. The fatty ac...

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Main Authors: M. A., Mohd Ali, R. M., Yunus, Cheng, C. K., Jolius, Gimbun
Format: Article
Language:English
Published: Royal Society of Chemistry 2015
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/11252/1/Successive%20Optimisation%20of%20Waste%20Cooking%20Oil%20Transesterification%20In%20A%20Continuous%20Microwave%20Assisted%20Reactor.pdf
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author M. A., Mohd Ali
R. M., Yunus
Cheng, C. K.
Jolius, Gimbun
author_facet M. A., Mohd Ali
R. M., Yunus
Cheng, C. K.
Jolius, Gimbun
author_sort M. A., Mohd Ali
collection UMP
description This paper presents an optimization study of waste cooking oil (WCO) transesterification in a continuous microwave assisted reactor (CMAR). The custom-built CMAR employed an integrated proportional-integral-derivative controller for accurate control of temperature and reactant flowrate. The fatty acid methyl ester 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 influenced markedly the biodiesel conversion, with the significance of 45.99%, 6.76% and 3.21%, respectively. Further analysis using a successive optimization method generated by the Box–Behnken design predicted an optimum biodiesel conversion of circa 97.13% at 0.68 wt% of catalyst loading, 11.62 : 1 of methanol to oil molar ratio and 4.47 min of reaction time. Experimental validation of the optimum conditions showed an excellent agreement, with a minimum deviation of 0.18% from three replicates. The biodiesel produced in this work also met the specification of ASTM D6751.
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spelling UMPir112522018-01-11T03:53:15Z http://umpir.ump.edu.my/id/eprint/11252/ Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor M. A., Mohd Ali R. M., Yunus Cheng, C. K. Jolius, Gimbun TP Chemical technology This paper presents an optimization study of waste cooking oil (WCO) transesterification in a continuous microwave assisted reactor (CMAR). The custom-built CMAR employed an integrated proportional-integral-derivative controller for accurate control of temperature and reactant flowrate. The fatty acid methyl ester 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 influenced markedly the biodiesel conversion, with the significance of 45.99%, 6.76% and 3.21%, respectively. Further analysis using a successive optimization method generated by the Box–Behnken design predicted an optimum biodiesel conversion of circa 97.13% at 0.68 wt% of catalyst loading, 11.62 : 1 of methanol to oil molar ratio and 4.47 min of reaction time. Experimental validation of the optimum conditions showed an excellent agreement, with a minimum deviation of 0.18% from three replicates. The biodiesel produced in this work also met the specification of ASTM D6751. Royal Society of Chemistry 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11252/1/Successive%20Optimisation%20of%20Waste%20Cooking%20Oil%20Transesterification%20In%20A%20Continuous%20Microwave%20Assisted%20Reactor.pdf M. A., Mohd Ali and R. M., Yunus and Cheng, C. K. and Jolius, Gimbun (2015) Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor. RSC Advances, 5 (94). pp. 76743-76751. ISSN 2046-2069. (Published) http://dx.doi.org/ 10.1039/C5RA15834F DOI: 10.1039/C5RA15834F
spellingShingle TP Chemical technology
M. A., Mohd Ali
R. M., Yunus
Cheng, C. K.
Jolius, Gimbun
Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor
title Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor
title_full Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor
title_fullStr Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor
title_full_unstemmed Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor
title_short Successive Optimisation of Waste Cooking Oil Transesterification in a Continuous Microwave Assisted Reactor
title_sort successive optimisation of waste cooking oil transesterification in a continuous microwave assisted reactor
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/11252/1/Successive%20Optimisation%20of%20Waste%20Cooking%20Oil%20Transesterification%20In%20A%20Continuous%20Microwave%20Assisted%20Reactor.pdf
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