Fame Production From Waste Cooking Oil Through Transesterification-Ozonation Reaction

Widianto, Aloisiyus Yuli and Aubin, Joelle and Poux, Martine and Xuereb, Catherine (2018) Fame Production From Waste Cooking Oil Through Transesterification-Ozonation Reaction. In: 6th International Congress on Green Process Engineering, 3-6 June 2018, Toulouse-France.

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As the fossil fuel resources are shortening day by day, the scarcity of petroleum reserves will give the opportunity for renewable energy sources to be the more attractive alternative. Biodiesel is considered to provide the best opportunity for renewable energy as diesel fuels. Biodiesel, is chemically defined as alkyl monoester of fatty acid derived from vegetable oil and animal fats has attracted great interest as a replacement for petroleum because it has desirable fuel characteristic; the high flash point, admirable biodegradability and lubricity, and higher combustion efficiency compared to the corresponding properties of diesel oil. Biodiesel can be mixed in any proportion with diesel oil hence it can be applied immediately to diesel engines without much modification, less poisonous compared to the ordinary diesel oil. Biodiesel emissions are environmentally friendly and greener house gas friendly as it emits less carbon dioxide in the atmosphere and therefore contributes towards lessening further global warming. Synthesis of biodiesel has been widely studied. There are many raw materials used for the synthesis both edible and non-edible oil. The use of waste cooking oil (WCO) has attracted the attention of many researchers. However, there is only a little attention focused on the use of transesterification-ozonation reaction for improving biodiesel production from WCO. Technical challenges for biodiesel production via ozone technology from the previous work comprised long reaction time, high operating cost, high energy consumption; the process needed a large amount of methanol, and low production efficiency. The study aims to synthesize of high-quality biodiesel using intensified reactor involving double bond cracking in WCO to methyl esters, low methanol needed, low energy consumption, process safety, high selectivity and conversion in the shorter reaction time. In this work, the biodiesel synthesis was conducted through the three experimental methods consisted of the first, two-steps process in series of transesterification and ozonation within the microchannel. The second, one-step process simultaneously of transesterification and ozonation within the microchannel; and the third, two-steps process in series involved of transesterification using batch reactor and then ozonation within the microchannel. For the two-steps process in series above, transesterification was always carried out at optimum temperature 60 °C with the molar ratio between WCO and methanol was 1:4, 1:5, 1:6, 1:7, and 1-1.5 % w/w NaOH as a catalyst. The ozonation was conducted in a tube reactor with an internal diameter and tube length respectively 1 mm and 30 m at the same operating variables but at the reaction temperature of 20 °C. The products analysis by Gas-Chromatography has revealed that transesterification was able to synthesize methyl esters compounds contained saturated and unsaturated methyl esters. Whereas ozonation results in short-chain methyl esters comprising methyl nonanoate, methyl hexanoate, and methyl octanoate through the cracking of double bond-carbon chain unsaturated methyl ester compounds, and long-chain methyl esters comprising methyl palmitate, methyl oleate, and methyl stearate. The effect of processing steps to biodiesel production will be discussed in the next study.

Item Type: Conference or Workshop Item (Poster)
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering > Department of Chemical Engineering
Depositing User: Aloysius Yuli W, 61141
Date Deposited: 10 Nov 2021 08:01
Last Modified: 02 Dec 2021 02:35
URI: http://repository.ubaya.ac.id/id/eprint/40708

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