- “The production of fatty acid methyl esters (FAMEs) by a two-step in-situ transesterification from two kinds of rice bran …”1
Researchers from Department of Chemical Engineering, National Taiwan University of Science and Technology, in Taipei, Taiwan, China; and Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, in Surabaya, Indonesia; have presented an article titled: “Biodiesel production from rice bran by a two-step in-situ process.”
The researchers from Taipei and Surabaya have also noted:
- “The method included an in-situ acid-catalyzed esterification followed by an in-situ base-catalyzed transesterification.”
- “Free fatty acids (FFAs) level was reduced to less than 1% for both rice bran A (initial FFAs content=3%) and rice bran B (initial FFAs content=30%) in the first step under the following conditions: 10g rice bran, methanol to rice bran ratio 15mL/g, H(2)SO(4) to rice bran mass ratio 0.18, 60 degrees C reaction temperature, 600rpm stirring rate, 15min reaction time.”
- “The organic phase of the first step product was collected and subjected to a second step reaction by adding 8mL of 5N NaOH solution and allowing to react for 60 and 30min for rice bran A and rice bran B, respectively.”
- “FAMEs yields of 96.8% and 97.4% were obtained for rice bran A and rice bran B, respectively, after this two-step in-situ reaction.”
