A single step non-catalytic esterification of palm fatty acid distillate (PFAD) for biodiesel production
- Title
- A single step non-catalytic esterification of palm fatty acid distillate (PFAD) for biodiesel production
- Author
- 여영구
- Keywords
- Biodiesel; Non-catalytic esterification; Palm fatty acid distillate; Water-free reaction
- Issue Date
- 2012-02
- Publisher
- Elsevier Science LTD
- Citation
- FUEL, Mar 2012, 93(1), P.373-380
- Abstract
- In this work, the single step method for non-catalytic esterification of palm fatty acid distillate (PFAD), which is readily applicable to actual production of biodiesel, was investigated. In this method, the esterification reaction is accomplished in a single step by ensuring water-free reaction conditions and the acid value is reduced to below 0.5 (mg KOH/g) which has not been possible in previous methods. The reaction was completed (<0.5 mg KOH/g) within 180 min at relatively high temperature (>250 degrees C) enough to be above boiling point of water and at moderate pressure (0.85-1.20 MPa) without any catalyst. The effects of temperature, methanol feed rate and pressure on a semi-batch reaction were investigated and the optimal values of these variables were found (temperature: 290 degrees C, pressure: 0.85 MPa, feed rate: 2.4 g/min). The acid value was reduced from 191.4 to 0.36 (mg KOH/g) just in 180 min at these conditions. From the kinetic study on non-catalytic esterification of PFAD, it was found that the activation energy is 17.74 kJ/mol and the frequency factor is 2.12 min (1).
- URI
- https://www.sciencedirect.com/science/article/pii/S0016236111005370?via%3Dihub
- ISSN
- 0016-2361; 1873-7153
- DOI
- 10.1016/j.fuel.2011.08.063
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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