Biodiesel production by non-catalytic supercritical methyl acetate: Thermal stability study

被引：39
|
作者：
Niza, Noorzalila Muhammad [2 ]
Tan, Kok Tat [1 ,3 ]
Lee, Keat Teong [1 ]
Ahmad, Zainal [1 ]
机构：
[1] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
[2] UiTM Pulau Pinang, Fac Chem Engn, Permatang Pauh 13500, Pulau Pinang, Malaysia
[3] Univ Tunku Abdul Rahman, Dept Petrochem Engn, Fac Engn & Green Technol, Kampar 31900, Perak, Malaysia
来源：
APPLIED ENERGY | 2013年 / 101卷
关键词：
Biodiesel; Supercritical methyl acetate; Thermal stability; Jatropha oil; Methyl esters; Triacetin; JATROPHA-CURCAS; OIL; TRANSESTERIFICATION; METHANOL;
D O I：
10.1016/j.apenergy.2012.03.033
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Biodiesel production by non-catalytic supercritical methyl acetate (SCMA) reaction has been developed and optimized in previous study using Jatropha oil as oil feedstock. The reaction produces fatty methyl acid esters (FAME) as well as triacetin as the co-product Due to the requirement of high reaction temperatures in SCMA treatment, thus the thermal stability of methyl oleate and methyl linoleate which are the major FAME in SCMA was investigated at temperature ranging from 330 degrees C to 420 degrees C. In addition, thermal stability of triacetin which was utilized as fuel additive in biodiesel was also investigated. The results revealed that the thermal stability of poly-unsaturated methyl linoleate decreases dramatically as temperature is increased from 330 degrees C to 420 degrees C while degradation of methyl oleate was only significant at 390 degrees C and above. Similar behaviour was also observed for triacetin which was found to degrade at high temperatures, resulting in low yield of biodiesel fuel even at optimum conditions. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：198 / +
页数：5
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