The over-exploitation of non-renewable resources leads to the depletion of energy reserves,
as well as a rise in the price of petroleum-based fuels. Thus, there is a need to find suitable …

Due to diminishing petroleum reserves and deleterious environmental consequences of
exhaust gases from fossil-based fuels, research on renewable and environment friendly …

Biodiesel production from waste oils is an attractive option to produce biodiesel
economically, but high free fatty acids (FFA) in waste oils are a serious bottleneck for the …

The nature of alcohol and alcohol to oil molar ratio plays an important role on the method of
biodiesel production. As a result, this paper examined different alcohols commonly used for …

Dependence on fossil fuels for meeting the growing energy demand is damaging the world's
environment. There is a dire need to look for alternative fuels that are less potent to …

High pressure technologies involving sub and supercritical fluids offer the possibility to
obtain new products with special characteristics or to design new processes, which are …

Triglycerides are the main constituents of lipids, which are the fatty acids of glycerol. Natural
organic triglycerides (viz. virgin vegetable oils, recycled cooking oils, and animal fats) are …

Hydrothermal liquefaction is a technique for obtaining clean biofuel from biomass in the
presence of a solvent at moderate to high temperature (250–550° C) and pressure (5 …

The finite nature of fossil fuels necessitates consideration of alternative fuels from renewable
sources. The term biofuel refers to liquid, gas and solid fuels predominantly produced from …

Among the different extraction techniques used at analytical and preparative scale,
supercritical fluid extraction (SFE) is one of the most used. This review covers the most …