Alumina/silica supported K2CO3 as a catalyst for biodiesel synthesis from sunflower oil

被引：177

作者：

Lukic, I. ^{[1
]}

Krstic, J. ^{[2
]}

Jovanovic, D. ^{[2
]}

Skala, D. ^{[1
]}

机构：

[1] Univ Belgrade, Fac Technol & Met, Belgrade 11000, Serbia

[2] Inst Chem Technol & Met, Dept Catalysis & Chem Engn, Belgrade 11000, Serbia

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 20期

关键词：

Biodiesel; Methanolysis; Heterogeneous catalyst; Alumina/silica; K2CO3; SOLID-BASE CATALYST; FIXED-BED REACTOR; PALM KERNEL OIL; SOYBEAN OIL; HETEROGENEOUS CATALYST; FUEL PRODUCTION; COCONUT OIL; TRANSESTERIFICATION; ALKALI; HYDROGENATION;

D O I：

10.1016/j.biortech.2009.04.057

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The new type of catalyst for fatty acid methyl esters (FAME or biodiesel) synthesis with K2CO3 as active component on alumina/silica support was synthesized using sol-gel method. Corresponding catalyst (xerogel) was prepared by 12 h drying the wet gel in air at 300 degrees C, 600 degrees C or 1000 degrees C at atmospheric pressure. The catalysts activity in the methanolysis of sunflower oil was compared to the activity of the pure K2CO3. The effects of various reaction variables on the yield of FAME were investigated. It was found that the temperature of 120 degrees C and methanol to oil molar ratio of 15: 1, are optimal conditions for FAME synthesis with synthesized catalyst. Repeated use of same amount of catalyst indicated that effect of potassium leaching obviously existed leading to decrease of catalyst activity. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：4690 / 4696

页数：7

共 45 条

[31]

Stern R., 1999, U.S. Patent, Patent No. [5908946, 5,908,946]

[32] STUDIES OF COMPOUND FORMATION ON ALKALI-GAMMA-ALUMINUM OXIDE CATALYST SYSTEMS USING CHROMIUM, IRON, AND MANGANESE LUMINESCENCE [J].

STORK, WHJ ;

POTT, GT .

JOURNAL OF PHYSICAL CHEMISTRY, 1974, 78 (24) :2496-2506

[33] Transesterification of soybean oil with zeolite and metal catalysts [J].

Suppes, GJ ;

Dasari, MA ;

Doskocil, EJ ;

Mankidy, PJ ;

Goff, MJ .

APPLIED CATALYSIS A-GENERAL, 2004, 257 (02) :213-223

[34] Palm oil biodiesel synthesized with potassium loaded calcined hydrotalcite and effect of biodiesel blend on elastomer properties [J].

Trakarnpruk, Wimonrat ;

Porntangjitlikit, Suriya .

RENEWABLE ENERGY, 2008, 33 (07) :1558-1563

[35] Processing, adhesion and electrical properties of silicon steel having non-oriented grains coated with silica and alumina sol-gel [J].

Vasconcelos, D. C. L. ;

Orefice, R. L. ;

Vasconcelos, W. L. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 447 (1-2) :77-82

[36] Application of the factorial design of experiments and response surface methodology to optimize biodiesel production [J].

Vicente, G ;

Coteron, A ;

Martinez, M ;

Aracil, J .

INDUSTRIAL CROPS AND PRODUCTS, 1998, 8 (01) :29-35

[37] Production of biodiesel through transesterification of Jatropha oil using KNO3/Al2O3 solid catalyst [J].

Vyas, Amish P. ;

Subrahmanyam, N. ;

Patel, Payal A. .

FUEL, 2009, 88 (04) :625-628

[38] Transesterification of soybean oil with nano-MgO or not in supercritical and subcritical methanol [J].

Wang, Lianyuan ;

Yang, Jichu .

FUEL, 2007, 86 (03) :328-333

[39] Synthesis and characterization of potassium-modified alumina superbases [J].

Wang, Y ;

Zhu, JH ;

Huang, WY .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2001, 3 (12) :2537-2543

[40] Soybean oil methyl esters preparation using NaX zeolites loaded with KOH as a heterogeneous catalyst [J].

Xie, Wenlei ;

Huang, Xiaoming ;

Li, Haitao .

BIORESOURCE TECHNOLOGY, 2007, 98 (04) :936-939

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