One-step process for production of biodiesel from Jatropha curcas L. seeds： Optimization using Response Surface Methodology （RSM）

作     者：Asnida Yanti Ani Mohd Fauzi Abdullah Mohd Azlan Mohd Ishak Khudzir Ismail 

作者机构：Fossil ＆ Biomass Energy Research Group Fuel Combustion Research Laboratoo＇ Faculty of Applied Sciences Universiti Teknologi MARA 02600 Arau Perils MALA YSIA 

出 版 物：《Journal of Chemistry and Chemical Engineering》 (化学与化工（英文版）)

年 卷 期：2009年第3卷第12期

页      面：15-22页

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 083202[工学-粮食、油脂及植物蛋白工程] 

主　　题：Jatropha curcas L. supercritical methanol In situ transesterification biodiesel Response Surface Methodology (RSM) 

摘      要：Jatropha curcas L. （JCL） seeds were extracted and transesterified in-situ using supercritical methanol extraction in the absence of catalyst at different temperatures （200-280℃） and pressures （8-12 MPa）, and at a fixed reaction time of 30 min with seeds-to-methanol ratio of 1：40 w/v. Design of experiment approach using five-level-two-factors design of Response Surface Methodology （RSM） was used to observe the effect of two independent variables i.e. temperature and pressure and the percent of biodiesel yield which required 13 runs. For optimization of the variables, Central Composite Rotatable Design （CCRD） was used for regression analysis and analysis of variance （ANOVA）. The optimize conditions suggested by RSM were at T = 280℃ and P = 12.04 MPa. The predicted and experimental biodicsel yields were found to be 56.8% and 59.9%, respectively, with relatively small deviation errors of 1.59%.