Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts

Today, edible oil or cooking oil is one of the most important elements in food production industry as well as food preparation at home. As a consequence, large amount of waste cooking oil (WCO) was produced especially in developing countries. With increasing fossil fuel price and decreasing renewab...

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Main Author: Anwar, Nur Sharina
Format: Thesis
Language:English
Published: 2012
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Online Access:http://psasir.upm.edu.my/id/eprint/32012/1/FS%202012%2047R.pdf
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spelling my-upm-ir.320122015-01-26T01:05:01Z Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts 2012-03 Anwar, Nur Sharina Today, edible oil or cooking oil is one of the most important elements in food production industry as well as food preparation at home. As a consequence, large amount of waste cooking oil (WCO) was produced especially in developing countries. With increasing fossil fuel price and decreasing renewable energy supply, it is of main interest to utilize the WCO by converting it into usable and beneficial product which is biodiesel. Heterogeneous acid catalyst which can simultaneously carry out esterification and transesterification reaction was selected for converting that kind of low grade oil into biodiesel. In this study, sulfated MoO3/SiO2 with different loading percentage of MoO3 were synthesized via impregnation method and applied in the transesterification reaction of WCO to biodiesel. X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area and Ammonia-Temperature Programme Desorption (NH3-TPD) were used to characterize the catalysts synthesized while the biodiesel produced were analyzed by proton Nuclear Magnetic Resonance (1H NMR) and Gas Chromatography-Flame Ionization Detector (GCFID). The transesterification reaction was optimized by Taguchi method in which L16 orthogonal array involving four levels and five parameters was employed to investigate the effect of each reaction parameters which are reaction temperature, reaction time, methanol to WCO molar ratio, catalyst amount and MoO3 loading on SiO2 and imultaneously determine the optimum conditions for the transesterification reaction. Results showed that the reaction temperature, reaction time, methanol to WCO molar ratio and catalyst amount were the significant influential parameters that influence the final yield of biodiesel while MoO3 loading on SiO2 is insignificant parameter. The optimum conditions of the reaction were derived to be at 453 K reaction temperature, 6 h reaction time, 30:1 methanol to WCO molar ratio, 1 wt% of the catalyst amount and 3 wt% MoO3 loading on the SiO2 with 98.56 % biodiesel yield obtained which matched well with predicted yield. Some of physicochemical properties of the biodiesel produced were analyzed and the results were complied with the international standard specification requirements. Another study on the catalyst performance shows that the catalyst exhibits good stability and reusability up to at least five times in transesterification reaction without significant lost in activity. The overall results indicate the biodiesel produced exhibits good properties and suitability to be produced industrially. Taguchi methods (Quality control) Cooking (Oils and fats) Catalyst 2012-03 Thesis http://psasir.upm.edu.my/id/eprint/32012/ http://psasir.upm.edu.my/id/eprint/32012/1/FS%202012%2047R.pdf application/pdf en public masters Universiti Putra Malaysia Taguchi methods (Quality control) Cooking (Oils and fats) Catalyst Faculty of Science
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
topic Taguchi methods (Quality control)
Cooking (Oils and fats)
Catalyst
spellingShingle Taguchi methods (Quality control)
Cooking (Oils and fats)
Catalyst
Anwar, Nur Sharina
Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts
description Today, edible oil or cooking oil is one of the most important elements in food production industry as well as food preparation at home. As a consequence, large amount of waste cooking oil (WCO) was produced especially in developing countries. With increasing fossil fuel price and decreasing renewable energy supply, it is of main interest to utilize the WCO by converting it into usable and beneficial product which is biodiesel. Heterogeneous acid catalyst which can simultaneously carry out esterification and transesterification reaction was selected for converting that kind of low grade oil into biodiesel. In this study, sulfated MoO3/SiO2 with different loading percentage of MoO3 were synthesized via impregnation method and applied in the transesterification reaction of WCO to biodiesel. X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area and Ammonia-Temperature Programme Desorption (NH3-TPD) were used to characterize the catalysts synthesized while the biodiesel produced were analyzed by proton Nuclear Magnetic Resonance (1H NMR) and Gas Chromatography-Flame Ionization Detector (GCFID). The transesterification reaction was optimized by Taguchi method in which L16 orthogonal array involving four levels and five parameters was employed to investigate the effect of each reaction parameters which are reaction temperature, reaction time, methanol to WCO molar ratio, catalyst amount and MoO3 loading on SiO2 and imultaneously determine the optimum conditions for the transesterification reaction. Results showed that the reaction temperature, reaction time, methanol to WCO molar ratio and catalyst amount were the significant influential parameters that influence the final yield of biodiesel while MoO3 loading on SiO2 is insignificant parameter. The optimum conditions of the reaction were derived to be at 453 K reaction temperature, 6 h reaction time, 30:1 methanol to WCO molar ratio, 1 wt% of the catalyst amount and 3 wt% MoO3 loading on the SiO2 with 98.56 % biodiesel yield obtained which matched well with predicted yield. Some of physicochemical properties of the biodiesel produced were analyzed and the results were complied with the international standard specification requirements. Another study on the catalyst performance shows that the catalyst exhibits good stability and reusability up to at least five times in transesterification reaction without significant lost in activity. The overall results indicate the biodiesel produced exhibits good properties and suitability to be produced industrially.
format Thesis
qualification_level Master's degree
author Anwar, Nur Sharina
author_facet Anwar, Nur Sharina
author_sort Anwar, Nur Sharina
title Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts
title_short Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts
title_full Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts
title_fullStr Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts
title_full_unstemmed Application of Taguchi method in the optimization of biodiesel production from waste cooking oil using MoO3/SiO2 catalysts
title_sort application of taguchi method in the optimization of biodiesel production from waste cooking oil using moo3/sio2 catalysts
granting_institution Universiti Putra Malaysia
granting_department Faculty of Science
publishDate 2012
url http://psasir.upm.edu.my/id/eprint/32012/1/FS%202012%2047R.pdf
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