Esterification and transesterification over SrO-ZnO/Al2O3 as a novel bifunctional catalyst for biodiesel production

被引：77
作者：
Al-Saadi, Ali [1 ,2 ]
Mathan, Bobby [1 ]
He, Yinghe [1 ]
机构：
[1] James Cook Univ, Coll Sci & Engn, Townsville, Qld 4811, Australia
[2] Univ Baghdad, Al Khwarizmi Coll Engn, Dept Biochem Engn, Baghdad, Iraq
来源：
RENEWABLE ENERGY | 2020年 / 158卷
关键词：
Heterogeneous catalyst; Acid-base catalyst; SrO-ZnO/Al2O3; Reaction kinetics; Corn oil; Oleic acid; SOYBEAN OIL TRANSESTERIFICATION; HETEROGENEOUS CATALYST; PROCESS OPTIMIZATION; COOKING OIL; HIGH ACID; OXIDE; PROSPECTS; EFFICIENT; SRAL2O4; SPINEL;
D O I：
10.1016/j.renene.2020.05.171
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A series of novel bifunctional catalysts (SrO-ZnO/Al2O3) have been synthesised via the wet impregnation method for biodiesel production. The basic and acidic activities of the prepared catalysts were investigated using corn oil and oleic acid, respectively. Physio-chemical characteristics of the synthesised catalysts were analysed by XRD, SEM-EDS, TGA-DSC, and FT-IR. H-1 NMR was used for analysing the fatty acid ethyl ester and the free fatty acid. The catalyst exhibited higher catalytic activity in transesterification reaction, with 95.1% reaction conversion at operating conditions of 10:1 ethanol to corn oil molar ratio, 10 wt% catalyst loading, and 180 min at 70 degrees C. However, the conversion for esterification reaction was 71.4% at operating conditions 5:1 ethanol to corn oil molar ratio, 10 wt% catalyst loading, 6 h reaction time at 70 degrees C reaction temperature. The kinetic studies revealed that the transesterification and esterification reactions have good agreement with the first-order model. (C) 2020 Elsevier Ltd. All rights reserved.
引用
收藏
页码：388 / 399
页数：12
相关论文
共 42 条
[1]   Development of a lithium based chicken bone (Li-Cb) composite as an efficient catalyst for biodiesel production [J].
AlSharifi, Mariam ;
Znad, Hussein .
RENEWABLE ENERGY, 2019, 136 :856-864
[2]   Biodiesel production from canola oil using novel Li/TiO2 as a heterogeneous catalyst prepared via impregnation method [J].
Alsharifi, Mariam ;
Znad, Hussein ;
Hena, Sufia ;
Ang, Ming .
RENEWABLE ENERGY, 2017, 114 :1077-1089
[3]   Transesterification of waste frying oils using ZnAl2O4 as heterogeneous catalyst [J].
Alves, C. T. ;
de Oliveira, A. S. ;
Carneiro, S. A. V. ;
Santos, R. C. D. ;
Vieira de Melo, S. A. B. ;
Andrade, H. M. C. ;
Marques, F. C. ;
Torres, E. A. .
CHISA 2012, 2012, 42 :1928-1945
[4]   Glycerol transesterification with methyl stearate over solid basic catalysts I. Relationship between activity and basicity [J].
Bancquart, S ;
Vanhove, C ;
Pouilloux, Y ;
Barrault, J .
APPLIED CATALYSIS A-GENERAL, 2001, 218 (1-2) :1-11
[5]   Biodiesel production using chemical and biological methods - A review of process, catalyst, acyl acceptor, source and process variables [J].
Bharathiraja, B. ;
Chakravarthy, M. ;
Kumar, R. Ranjith ;
Yuvaraj, D. ;
Jayamuthunagai, J. ;
Kumar, R. Praveen ;
Palani, S. .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2014, 38 :368-382
[6]   Transesterification of waste cooking oil for biodiesel production catalyzed by Zn substituted waste egg shell derived CaO nanocatalyst [J].
Borah, Manash Jyoti ;
Das, Ankur ;
Das, Velentina ;
Bhuyan, Nilutpal ;
Deka, Dhanapati .
FUEL, 2019, 242 :345-354
[7]   Recent developments on heterogeneous catalysts for biodiesel production by oil esterification and transesterification reactions: A review [J].
Borges, M. E. ;
Diaz, L. .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2012, 16 (05) :2839-2849
[8]   Solid Mixed-Metal-Oxide Catalysts for Biodiesel Production: A Review [J].
Chang, Fei ;
Zhou, Quan ;
Pan, Hu ;
Liu, Xiao-Fang ;
Zhang, Heng ;
Xue, Wei ;
Yang, Song .
ENERGY TECHNOLOGY, 2014, 2 (11) :865-873
[9]   Processing and characterization of sol-gel fabricated mixed metal aluminates [J].
Chroma, M ;
Pinkas, J ;
Pakutinskiene, I ;
Beganskiene, A ;
Kareiva, A .
CERAMICS INTERNATIONAL, 2005, 31 (08) :1123-1130
[10]   Progress and recent trends in biodiesel fuels [J].
Demirbas, Ayhan .
ENERGY CONVERSION AND MANAGEMENT, 2009, 50 (01) :14-34
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