Optimization of Biodiesel Ultrasound-Assisted Synthesis from Castor Oil Using Response Surface Methodology (RSM)

Mohammadreza Sabzimaleki; Barat Ghobadian; Mohsen Mazloom Farsibaf; Gholamhassan Najafi; Masoud Dehghani Soufi; Seyed Mohammad Safieddin Ardebili

doi:10.1515/cppm-2014-0013

Article

Optimization of Biodiesel Ultrasound-Assisted Synthesis from Castor Oil Using Response Surface Methodology (RSM)

Mohammadreza Sabzimaleki , Barat Ghobadian , Mohsen Mazloom Farsibaf , Gholamhassan Najafi , Masoud Dehghani Soufi and Seyed Mohammad Safieddin Ardebili

Published/Copyright: May 15, 2015

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From the journal Chemical Product and Process Modeling Volume 10 Issue 2

Abstract

Production of biodiesel from castor oil (CO) using ultrasound-assisted has been investigated in this study. The objective of the present work was therefore to determine the relationship between various important parameters of the alkaline-catalyzed transesterification process to obtain a high reaction yield in a short time. The response surface methodology (RSM) was used to statistically analyze and optimize the operating parameters of the process. A central composite design (CCD) was approved to study the effects of the reaction time, the methanol to oil molar ratio, the ultrasonic cycle and the ultrasonic amplitude on reaction yield. The optimum conditions for alkaline-catalyzed transesterification of CO was found to be a reaction time of 540 s, methanol to oil molar ratio of 8.15:1,ultrasonic cycle of 0.73% and ultrasonic amplitude 64.34%. By exerting the calculated optimum condition in the process, the reaction yield reached 87.0494%. The results from the RSM analysis indicated that the reaction time has the most significant effect on the reaction yield.

Keywords: optimization; castor oil biodiesel; ultrasound-assisted synthesis; response surface methodology

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Published Online: 2015-5-15

Published in Print: 2015-6-1

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Articles in the same Issue

https://doi.org/10.1515/cppm-2014-0013

Keywords for this article

optimization; castor oil biodiesel; ultrasound-assisted synthesis; response surface methodology