Comparison of Biodiesel Production Technologies From Vegetable Oils

Abstract

In today's era, excessive dependence on transportation has led to widespread exploitation of fossil fuel resources, particularly petroleum, rapidly depleting this crucial energy source worldwide. On the other hand, the use of petroleum-based fuels has resulted in increased greenhouse gas emissions, ozone layer depletion, environmental pollution, respiratory disorders, and various other health issues in developing countries. The finite nature of fossil fuels and environmental crises has compelled researchers to seek alternative fuels that are both renewable and produce fewer pollutants. Biofuels, especially biodiesel, serve as a substitute for current diesel engines. These biological fuels (plant oils) face challenges such as poor ignition quality, necessitating modifications to make them suitable replacements for conventional diesel fuels in vehicles. Various technologies are employed for biodiesel production from plant oils, including direct use, oil blends, micro emulsions, pyrolysis, and trans esterification. This research discusses the advantages and drawbacks of these technologies, highlighting trans esterification as a superior method for biodiesel production due to its excellent benefits. Furthermore, the study delves into the preparation stages, mass dissolution in alcohol, trans esterification reaction, glycerin separation, and biodiesel washing.