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Palm fatty acid biodiesel: process optimization and study of reaction kinetics
Praveen K S Yadav1, Onkar Singh, R P Singh
1Department of Oil and Paint Technology, Harcourt Butler Technological Institute, Kanpur, India. pkyhbti@yahoo.co.in
Journal of Oleo Science
|October 26, 2010
Summary
Biodiesel production from palm fatty acid achieved 94.4% conversion using optimized trans-esterification. The resulting palm fatty acid methyl esters (FAME) meet ASTM biodiesel standards, offering a cost-effective alternative fuel.
Area of Science:
- Chemical Engineering
- Renewable Energy
Background:
- High cost of refined oils limits biofuel competitiveness.
- Palm fatty acid (PFA) is a byproduct of palm oil refining, presenting an opportunity for valorization.
Purpose of the Study:
- To optimize the production of palm fatty acid methyl esters (FAME) from PFA.
- To evaluate the quality of the produced biodiesel against established standards.
- To investigate the reaction kinetics of the trans-esterification process.
Main Methods:
- Two-step trans-esterification of PFA with methanol.
- Optimization of reaction conditions including molar ratio (1:10 oil to methanol) and temperature (65°C).
- Utilized sulfuric acid and sodium hydroxide as catalysts.
- Analyzed FAME composition and biodiesel properties.
- Studied reaction kinetics.
Main Results:
- Achieved a maximum conversion rate of 94.4% for FAME production.
- The composition of the synthesized FAME was comparable to that of palm oil.
- The produced biodiesel met American Society for Testing and Materials (ASTM) specifications.
- Trans-esterification reaction kinetics were determined to be first order in fatty acid and methanol, and second order overall.
Conclusions:
- Optimized trans-esterification of palm fatty acid is an effective method for producing high-yield biodiesel.
- Biodiesel derived from palm fatty acid meets international quality standards.
- The kinetic study provides valuable data for industrial scale-up and process control.
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