Biodiesel Production Using Supercritical Methanol Essay

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A major part of all the energy produced worldwide comes from fossil fuel sources. These sources are limited and are depleting at a fast pace. The depletion of these fossil sources has led to the search of alternative fuels from renewable sources like plant biomass. Vegetable oil is one such renewable source. Vegetable oil has gained much attention in recent years since it has many environmental benefits and it can be obtained from renewable sources. The energy from vegetable oil can be tapped by converting it to biodiesel. In the recent years, such bio renewable fuels have been in the spot light due to the many benefits. For example, biodiesel can be effectively used to replace petroleum based diesel, without significant changes to the …show more content…
Biodiesel on the other hand reduces overall CO2 emissions, since it is a plant based fuel, and plants use up CO2 from the air during photosynthesis. Thus, from an environmental as well as an economic point of view, biodiesel seems to be a promising solution to the rising energy demands.
This paper will further discuss the various methods available for producing biodiesel, particularly focusing on biodiesel produced by supercritical technology. 2. METHODS FOR BIODIESEL PRODUCTION
The products that are most commonly distributed for use in the diesel fuel marketplace are the blends of biodiesel and conventional petro-diesel. The blends of biodiesel are specified by a coding system known as the B-factor system. 100% biodiesel is referred to as B-100 20% biodiesel and 80% petro-diesel is labelled as B-20 blend 5% biodiesel and 95% petro-diesel is labelled as B-5 blend 2% biodiesel and 98% petro-diesel is labelled as B-2 blend
Biodiesel is its pure form (B-100) can be directly used in diesel engines with certain modifications. For direct use or blending, biodiesel can be synthesized by a variety of methods like: Pyrolysis Micro Emulsification Transesterification
2.1 Pyrolysis
In pyrolysis, organic matter or biomass is thermally decomposed at high temperature in the absence of oxygen. Pyrolysis is a complex process consisting of simultaneous reactions. Thermal decomposition of organic matter is carried out, starting at 350 °C to

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