Open Access. Powered by Scholars. Published by Universities.®
- File Type
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Ultrasound-Assisted Synthesis Of Biodiesel From Crude Cottonseed Oil Using Response Surface Methodology, Xiaohu Fan, Feng Chen, Xi Wang
Ultrasound-Assisted Synthesis Of Biodiesel From Crude Cottonseed Oil Using Response Surface Methodology, Xiaohu Fan, Feng Chen, Xi Wang
Feng Chen
Response surface methodology (RSM) based on central composite rotatable design (CCRD) was used to optimize the three important reaction variables-methanol/oil molar ratio (M), NaOH catalyst concentration (C) and reaction time (T) for transesterification of crude cottonseed oil under ultrasonic irradiation. A quadratic polynomial model was obtained to predict the methyl ester yield. 98 wt% of the methyl ester yield could be reached at the deduced optimal conditions: methanol/oil molar raito of 6.2:1, NaOH catalyst concentration of 1 wt% (by the weight of crude cottonseed oil) and reaction time of 8 min. Validation experiments confirmed …
Biodiesel Production From Crude Cottonseed Oil: An Optimization Process Using Response Surface Methodology, Xiaohu Fan, Xi Wang, Feng Chen
Biodiesel Production From Crude Cottonseed Oil: An Optimization Process Using Response Surface Methodology, Xiaohu Fan, Xi Wang, Feng Chen
Feng Chen
Biodiesel, known as fatty acid methyl ester (FAME), was produced from crude cottonseed oil (triglycerides) by transesterification with methanol in the presence of sodium hydroxide. This process was optimized by applying factorial design and response surface methodology (RSM) with SAS and PSIPLOT programs. A second-order mathematical model was obtained to predict the yield as a function of methanol/oil molar ratio, catalyst concentration, reaction temperature, and rate of mixing. Based on ridge max analysis and RSM, as well as economic cost consideration, the practical optimal condition for the production of biodiesel was found to be: methanol/oil molar ratio, 7.9; temperature, 53 …