The Optimization of Biodiesel Synthesis From Used Cooking Oil Using Ozone Technology

Purwanto, Edy and Riadi, Lieke (2013) The Optimization of Biodiesel Synthesis From Used Cooking Oil Using Ozone Technology. In: 20th Regional Symposium on Chemical Engineering (RSCE 2013), 12-13 November 2013, Manila . (Submitted)

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The utilization of used cooking oil for synthesis of biodiesel has attracted many researchers, However, there is little attention focused on the use of ozone technologyfor synthesis of biodiesel from used palm cooking oil. Biodiesel in this research is a mixture of methyl esters derived from used cooking oil and methanol with the utilization of acid catalyst and the injection of ozone gas into the reactor. Response surface methodology was applied to determine the optimal operating condition in the biodiesel production. The influence of input variables temperature, ozone concentration, molar ratio of reactant and reaction time on methyl ester concentration was quantified and the optimal condition was indicated by high content of short chain and long chain methyl ester products. The synthesis of biodiesel/methyl esters was conducted in a batch reactor equipped with reflux condenser and potassium iodide trap. A central composite design with four independent variables and two response variables was performed to determine the influence of independent variables. There are two simultaneous reactions occurred, ozonolysis and transesterification reactions. Ozonolysis reaction produced short chain methyl esters consists of methyl hexanoate, methyl octanoatc and methyl nonanoate whereas transesterification reaction produced long chain methyl ester products which were methyl palmitate, methyl stearate, methyl rnyristate and methyl laurate. The optimal operating condition was identitied to be a reaction temperature of 35°C; 4.8% ozone concentration; molar ratio oil: methanol of 1:7; and 5 hours reaction time.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Biodiesel, Ozonolysis, Transesterificatiou, Methyl Ester, Used Cooking Oil
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering > Department of Chemical Engineering
Depositing User: Eko Setiawan 194014
Date Deposited: 19 Dec 2013 09:33
Last Modified: 24 Mar 2021 14:24

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