Transesterification of waste frying oil using a zinc aluminate catalyst

被引：42

作者：

Alves, C. T. ^{[1
]}

Oliveira, A. ^{[1
]}

Carneiro, S. A. V. ^{[1
]}

Silva, A. G. ^{[2
,3
]}

Andrade, H. M. C. ^{[2
,3
]}

Vieira de Melo, S. A. B. ^{[1
]}

Torres, E. A. ^{[1
]}

机构：

[1] Univ Fed Bahia, Programa Engn Ind, Escola Politecn, BR-40210630 Salvador, BA, Brazil

[2] Univ Fed Bahia, INCT Energia & Ambiente, BR-40210630 Salvador, BA, Brazil

[3] Univ Fed Bahia, Inst Quim, BR-40210630 Salvador, BA, Brazil

来源：

FUEL PROCESSING TECHNOLOGY | 2013年 / 106卷

关键词：

Biodiesel; Transesterification; Waste frying oil; Zinc aluminate; HETEROGENEOUS CATALYST; BIODIESEL PRODUCTION; DIESEL FUEL; COOKING OIL; ETHANOL; OPTIMIZATION; PERSPECTIVES; KINETICS;

D O I：

10.1016/j.fuproc.2012.07.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The transesterification of waste frying oil (WFO) with methanol and ethanol was studied in a batch reactor using a zinc aluminate catalyst prepared by the combustion reaction method. The reaction runs were carried out for 2 hours, using alcohol:oil molar ratio of 40:1, temperature range of 60-200 degrees C, catalyst ratio of 1-10% wt., under 700 rpm stirring. The catalyst was characterized by XRD, EDX, TG, FTIR, N-2 physisorption, NH3- and CO2-TPD. The catalyst showed a normal spinel structure and acid character (Lewis acid), in spite of the presence of both strong acid and base sites. Methyl and ethyl esters yields higher than 95% were obtained at 150 and 200 degrees C and the catalyst was recovered and reused in 3 reaction cycles, without significant loss of activity. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：102 / 107

页数：6

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