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Biodiesel

Biodiesel is alkyl esters that made from the transesterification of animal fats, algae, vegetable oil including used vegetable oil. The triglycerides within these fat and oil were transesterified with methanol or ethanol in presence of usually basic catalyst, NaOH to fatty acid methyl ester (FAME) or fatty acid ethyl ester, depended on used methanol or ethanol in the process. There are glycerol is by product.

Vegetable oil that used in Biodiesel production; Oil palm is popular plant to produced Biodiesel in Thailand because it planted in the south of Thailand and gave higher oil production than other plants. Physic nut or Jatropha is a non-edible plant, belonging to the Euphobiaceae family. Extracted oil from Jatropha seed can use in low speed diesel engine in farm, farming truck. However, Jatropha species is toxic to animal and human, Hydrocyanic acid and Curcin. It is carefully extract and use. Several vegetable oils such as coconut oil, soy bean oil, rapeseed oil and sunflower oil are raw materials for Biodiesel production. In the other choice, grease and oil from cow can use for production.

Biodiesel produced from microalgae such as green algae, diatoms. These microalgae are fast growing marine and fresh water plants. Photosynthesis of algae use energy from the sun combines water with carbon dioxide to create biomass. Diatoms (Bacillariophyceae) store carbon in the form of natural oil or as a polymer of carbohydrate known as chrysolamonarin. And green algae (Chrorophyceae) storage in the form of starch, though oil can be produced under certain condition. Now, The USA developed of algae faming to higher oil production for Biodiesel production

Biodiesel

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