How biodiesel is produced from Jatropha?
The jatropha oil was heated to 60°C, and a solution of sodium methoxide (at 60°C) was added to the oil and stirred for 45 minutes using a magnetic stirrer. The mixture was then left to settle for 24 hours. Glycerin, which is the byproduct, was filtered off.
How do you convert Jatropha oil to biodiesel?
The Jatropha refined oil was then converted into biodiesel via a transesterification process. The transesterification process was done by adding NaOH (0.4% wt of oil) which was used as catalyst, and methanol (12.5% wt of oil) into the refined oil.
How can biodiesel be made through transesterification process?
The pre-treated and purified triglyceride feedstock is processed by the transesterification reaction with an excess of dry methanol at atmospheric pressure and 60 °C, using a base catalyst, commonly sodium methoxide or potassium methoxide, at residence times of minutes followed by several hours of settling for phase …
How is biodiesel made step by step?
Biodiesel is made through a chemical process called transesterification whereby the glycerin is separated from the fat or vegetable oil. The process leaves behind two products – methyl esters and glycerin. Methyl esters is the chemical name for biodiesel and glycerin is used in a variety of products, including soap.
What is a transesterification reaction?
Transesterification is the conversion of a carboxylic acid ester into a different carboxylic acid ester. The most common method of transesterification is the reaction of the ester with an alcohol in the presence of an acid catalyst.
Why Jatropha is suitable for biodiesel production?
Jatropha Curcas is a low-cost biodiesel feedstock with good fuel properties and more oil than other species. It is a non-edible oilseed feedstock. Thus it will have no impact on food prices or the food vs fuel debate.
Why jatropha is suitable for biodiesel production?
What is transesterification reaction explain it?
What is transesterification process?
Transesterification is the process in which fat or oil reacts with an alcohol to form esters and glycerol. A catalyst is used to improve the reaction rate and yield. Because the reaction is reversible, excess alcohol is used to shift the equilibrium to the product side.
Which catalyst is used in transesterification?
sulphonic-acid–modified mesostructured catalyst
The sulphonic-acid–modified mesostructured catalyst is used in the transesterification reaction, achieving a conversion as high as 100%. However, the high concentration of methanol has been found to be detrimental to the catalytic activity [99].
What is the type of mechanism for transesterification?
Mechanism. In the transesterification mechanism, the carbonyl carbon of the starting ester reacts to give a tetrahedral intermediate, which either reverts to the starting material, or proceeds to the transesterified product (RCOOR2).