Abstract
The conversion of waste frying oil into a valuable methyl ester (biodiesel) has been successfully conducted and also the acid pre-treatment process was carried out prior to the main biodiesel production process for lowering waste frying oil free fatty acid (FFA) content below 1%. The physicochemical properties of biodiesel were analyzed to ensure the product could meet the standards of fuel properties. The methanolysis was selected as the biodiesel production technique under various mixing speeds namely 350, 400 and 450 rpm, while the other parameters are maintained at the optimum process conditions such as methanol to oil molar ratio is 6:1, percentage of catalyst loading is 1.0% wt, reaction temperature is 60℃, and reaction time is 50 min. Also, the investigation on the kinematic viscosity, density and flash point of biodiesel was performed against a number of rpm. The standards of ASTM D 6751 were applied to measure the entire prescribed properties of biodiesel. The highest yield of biodiesel obtained was 99%. The values of flash point, kinematic viscosity and density were in the range of specified limitations. Other biodiesel properties fulfilled the diesel engine application requirements.
Highlights
While global warming and green house gas effect correspond to a part of issues in the green environmental topics of worldwide
The methanolysis was selected as the biodiesel production technique under various mixing speeds namely 350, 400 and 450 rpm, while the other parameters are maintained at the optimum process conditions such as methanol to oil molar ratio is 6:1, percentage of catalyst loading is 1.0% wt, reaction temperature is 60 ̊C, and reaction time is 50 min
The conversion of waste frying oil triglyceride into valuable methyl ester reached the maximum yield at 50 min of reaction time
Summary
While global warming and green house gas effect correspond to a part of issues in the green environmental topics of worldwide. Biodiesel takes a significant role in reducing the accumulation of green house gas and maintain a globally benign environmentally. In terms of clinical aspects, biodiesel is suitable for environmentally friendly fuels because of there are not any toxic compounds produced during the period of combustion. In this matter, Demirbas [1] reported that the advantages of biodiesel is better quality of exhaust gas emissions, its biodegradability and its contribution to the reduction in carbon dioxide (CO2) emissions.
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