Abstract
The waste cooking oil is transfered into biodiesel by using potassium hydroxide (KOH), alcohol (methanol) at a set temperature and time. The concentration of catalyst should be at correct level or else it will lead to negative effect on the overall output of the biodiesel produced. The biodiesel conversion is done to remove the free fatty acids present in the vegetable oil using transesterification process. It is known that the boiling point of methanol is 67 °C it gets evaporated if the reaction temperature exceeds beyond the boiling point. Due to evaporation the methanol required for the reaction to proceed forward may not available. Thus inorder the save lose of methanol due to evaporation during high temperature operations, a condenser is required to condense the escaping methanol in the form vapour. This condensed methanol is again sent back to the reaction vessel to carry the transesterification reaction. Petroleum diesel is widely used in the automobile sectors, industry purpose, domestic uses and in agriculture for generation of power (mechanical) energy for the purpose of meeting the energy demands. The fuels from alternate sources are renewable and does not cause severe effect on the environment. Biodiesel is one such source of fuel which can greatly support to reduce the dependency on conventional fuels. It will complete process in 1 to 2 days to finish the vegetable oil into biodiesel fuel. Biodiesel is renewable energy source to be produce the natural oil and also fats. Hence producing biodiesel is will be a better way to compensate the energy demands and the cost involved during production should also be considered. One of the cost reducing method is saving the raw materials from wastage.
Highlights
The usage of fuels for day to day activity has been increasing due to the rapid growth of human population and to meet their requirements
Velmathi [1].Fossil fuel are petroleum which are extracted from the earth surface and they are non renewable. the alternate fuel are bio diesel fuel which is extracted from methanol and ethanol which ignite the ic engine .due to usage of fossil fuel carbon di oxide and carbon mon oxide affect the atmosphere and make the layer thinner in ozone. which lead in increase in temperature and unconditional changes in climate and season.Nadir Yilmaz*[2]
Some author consider its the part of second generation the european commision developed directives (EU)/2015/1513 focusing on reducing the usage of edible oil which is a first generation feedstock and to promote non edible which can be called as second generation feedstock to serve as a source for the production of biodiesel
Summary
The usage of fuels for day to day activity has been increasing due to the rapid growth of human population and to meet their requirements. Raw material alone cost more for producing biodiesel. The importance of methanol recovery using a condenser is discussed as it plays a major role in supporting the reaction to move forward and to save cost by recovering it.
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