Successive optimisation of waste cooking oil transesterification in a continuous microwave assisted reactor

被引：15

作者：

Ali, M. A. Mohd. ^{[1
]}

Yunus, R. M. ^{[1
]}

Cheng, C. K. ^{[2
]}

Gimbun, J. ^{[2
]}

机构：

[1] Univ Malaysia Pahang, Fac Chem & Nat Resources Engn, Gambang 26300, Pahang, Malaysia

[2] Univ Malaysia Pahang, Ctr Excellence Adv Res Fluid Flow CARIFF, Gambang 26300, Pahang, Malaysia

来源：

RSC ADVANCES | 2015年 / 5卷 / 94期

关键词：

RESPONSE-SURFACE METHODOLOGY; BIODIESEL PRODUCTION; IRRADIATION; CATALYST;

D O I：

10.1039/c5ra15834f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper presents an optimization study of waste cooking oil (WCO) transesterification in a continuous microwave assisted reactor (CMAR). The custom-built CMAR employed an integrated proportional-integral-derivative controller for accurate control of temperature and reactant flowrate. The fatty acid methyl ester contents in the sample were determined using gas chromatography mass spectrometry (GC-MS). The results from two-level factorial design showed that the methanol to oil molar ratio, amount of NaOCH3 catalyst and reaction time influenced markedly the biodiesel conversion, with the significance of 45.99%, 6.76% and 3.21%, respectively. Further analysis using a successive optimization method generated by the Box-Behnken design predicted an optimum biodiesel conversion of circa 97.13% at 0.68 wt% of catalyst loading, 11.62 : 1 of methanol to oil molar ratio and 4.47 min of reaction time. Experimental validation of the optimum conditions showed an excellent agreement, with a minimum deviation of 0.18% from three replicates. The biodiesel produced in this work also met the specification of ASTM D6751.

引用

页码：76743 / 76751

页数：9