Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study

被引：37

作者：

Rane, S. A. ^{[1
]}

Pudi, S. M. ^{[1
]}

Biswas, P. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Roorkee 247667, Uttarakhand, India

来源：

CHEMICAL AND BIOCHEMICAL ENGINEERING QUARTERLY | 2016年 / 30卷 / 01期

关键词：

glycerol esterification; Cu-Ni bimetallic catalysts; SO42-/gamma-Al2O3; catalyst; stability; DAG and TAG selectivity; SELECTIVE ESTERIFICATION; ACETYLATION; BIOADDITIVES; CONVERSION; SILICA;

D O I：

10.15255/CABEQ.2014.2093

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The catalytic activity of Cu- or Ni monometallic and Cu-Ni bimetallic (Cu/Ni ratio = 3, 1, 0.33) catalysts supported on gamma-Al2O3 and SO42-/gamma-Al2O3 catalysts were evaluated for esterification of glycerol. The reactions were performed in a batch reactor under reflux at standard reaction conditions: temperature 110 degrees C, atmospheric pressure, glycerol to acetic acid molar ratio 1:9, and catalyst loading 0.25 g. The best catalytic activity was observed over 2 M SO42-/gamma-Al2O3 catalyst, which showed the glycerol conversion of 97 % within 2 hours of reaction. At this condition, the selectivity to glyceryl mono acetate (MAG), glyceryl diacetate (DAG), and glyceryl triacetate (TAG) were 27.0 %, 49.9 % and 23.1 %, respectively, after 5 h of reaction. After three consecutive runs, the 2 M SO42-/gamma-Al2O3 catalysts showed superior performance and no loss in activity was observed. The reaction kinetics results over 2 M SO42-/gamma-Al2O3 catalyst showed that the dependence on the reaction rate to glycerol concentration was of pseudo-second order, while the activation energy was found to be 106 kJ mol(-1).

引用

页码：33 / 45

页数：13

共 36 条

[21] Acetylation of glycerol to biofuel additives over sulfated activated carbon catalyst [J].

Khayoon, M. S. ;

Hameed, B. H. .

BIORESOURCE TECHNOLOGY, 2011, 102 (19) :9229-9235

[22] Etherification of glycerol and ethylene glycol by isobutylene [J].

Klepacova, Katarina ;

Mravec, Dusan ;

Kaszonyi, Alexander ;

Bajus, Martin .

APPLIED CATALYSIS A-GENERAL, 2007, 328 (01) :1-13

[23] Producing triacetylglycerol with glycerol by two steps: Esterification and acetylation [J].

Liao, Xiaoyuan ;

Zhu, Yulei ;

Wang, Sheng-Guang ;

Li, Yongwang .

FUEL PROCESSING TECHNOLOGY, 2009, 90 (7-8) :988-993

[24] Surface chemical promotion of Ca oxide catalysts in biodiesel production reaction by the addition of monoglycerides, diglycerides and glycerol [J].

Lopez Granados, M. ;

Alba-Rubio, A. C. ;

Vila, F. ;

Martin Alonso, D. ;

Mariscal, R. .

JOURNAL OF CATALYSIS, 2010, 276 (02) :229-236

[25] Sulfated alumina catalysts: Consequences of sulfate content and source [J].

Mekhemer, GAH ;

Khalaf, HA ;

Mansour, SAA ;

Nohman, AKH .

MONATSHEFTE FUR CHEMIE, 2005, 136 (12) :2007-2016

[26] Acidic mesoporous silica for the acetylation of glycerol: Synthesis of bioadditives to petrol fuel [J].

Melero, Juan A. ;

van Grieken, Rafael ;

Morales, Gabriel ;

Paniagua, Marta .

ENERGY & FUELS, 2007, 21 (03) :1782-1791

[27]

Pudi S., 2014, INT J CHEM REACT ENG, V12, P151

[28] New rare earth oxide catalysts for the transesterification of triglycerides with methanol resulting in biodiesel and pure glycerol [J].

Russbueldt, Bernhard M. E. ;

Hoelderich, Wolfgang F. .

JOURNAL OF CATALYSIS, 2010, 271 (02) :290-304

[29] Alternative carbon based acid catalyst for selective esterification of glycerol to acetylglycerols [J].

Sanchez, Julian A. ;

Hernandez, Diana L. ;

Moreno, Jorge A. ;

Mondragon, Fanor ;

Fernandez, Jhon J. .

APPLIED CATALYSIS A-GENERAL, 2011, 405 (1-2) :55-60

[30] Glycerol production and its applications as a raw material: A review [J].

Tan, H. W. ;

Aziz, A. R. Abdul ;

Aroua, M. K. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2013, 27 :118-127

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