ESTERIFICATION OF OLEIC ACID IN A SEMI-BATCH BUBBLE REACTOR FOR BIODIESEL PRODUCTION

被引：5
|
作者：
Silva, M. G. [1 ]
Oliveira, G. S. [1 ]
Carvalho, J. C. R. [1 ]
Nobre, L. R. P. [1 ]
Deus, M. S. [1 ]
Jesus, A. A. [1 ]
Oliveira, J. A. [1 ]
Souza, D. F. S. [1 ]
机构：
[1] Univ Fed Rio Grande do Norte, Dept Engn Quim, Natal, RN, Brazil
来源：
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2019年 / 36卷 / 01期
关键词：
Biodiesel; Esterification; Bubble reactor; Oleic acid; Ethanol; WASTE COOKING OIL; FREE FATTY-ACIDS; COLUMN REACTOR; TRANSESTERIFICATION; SOLUBILITY; GASES; FLOW; AUTOXIDATION; PRESSURE; ETHANOL;
D O I：
10.1590/0104-6632.20190361s20180185
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A semi-batch bubble reactor has been developed to produce fatty acid ethyl ester (biodiesel) by acid-catalyzed esterification of oleic acid with superheated ethanol vapor. In this paper, the effects of reaction temperature (110, 130 and 150 degrees C), ethanol volumetric flow rate (1.35, 2.50 and 3.65 mL/min) and vapor bubble size on the reactor performance were evaluated. The results demonstrated that temperature and volumetric flow rate have significant effects on the chemical reaction, gas phase solubility and mass transfer limitations. In addition, the free fatty acid conversion velocity was increased by approximately 56% when a microporous stainless-steel tube was employed to generate and distribute the vapor bubbles inside the reactor, which allowed the process to reach 95% conversion in approximately 40 minutes for the operating temperature of 150 degrees C and volumetric flow rate of 2.5 mL/min.
引用
收藏
页码：299 / 308
页数：10
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