Kinetic study of biodiesel production using choline hydroxide as catalyst

Due to the finite stock of fossil fuels and its negative impact on the environment, many countries across the world are now learning toward renewable sources energies like solar energy, wind energy, biofuel, hydropower, geothermal and ocean energy to ensure energy for the society development security.
The present work aims to study the use of choline hydroxide (ChOH) ionic liquid (IL) as a potentially reusable catalyst for the production of biodiesel. A kinetic study was carried out for the transesterification of a previously characterized vegetable oil sample with methanol, under the following fraction conditions: 2 wt.% catalyst dosage, 1:10 oil/methanol molar ratio, reaction time of 10, 20, 30, 45, 60 and 120 minutes, and reaction temperature values of 35 45 55 and 65ºC. The transesterification reaction with ChOH provided a 95.7% conversion value, expressed in FAME content, using a time reaction of 30 min and a temperature reaction of 65ºC. The experimental kinetic study results demonstrated that a first order model represents for all the studied temperatures, the model that best fits the experimental results. The reaction rate constant was estimated as 0.1182 min-1 for 65ºC and an activation energy of 13.64 kJ/mol

Kinetic study of biodiesel production using choline hydroxide as catalyst Conference Paper