Preparation, characterization and stability of KF/Si-MCM-41 basic catalysts for application in soybean oil transesterification with methanol

被引：10

作者：

Ranucci, C. R. ^{[1
]}

Colpini, L. M. S. ^{[1
]}

Monteiro, M. R. ^{[2
]}

Kothe, V. ^{[1
]}

Gasparrini, L. J. ^{[1
]}

Alves, H. J. ^{[1
]}

机构：

[1] Fed Univ Parana UFPR Setor Palotina, Biofuels Technol Course, Lab Catalysis & Biofuel Prod LabCatProBio, R Pioneiro 2153, BR-85950000 Palotina, PR, Brazil

[2] Fed Univ Sao Carlos UFSCar, Mat Characterizat & Dev Ctr CCDM DEMa, BR-13565905 Sao Carlos, SP, Brazil

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2015年 / 3卷 / 02期

关键词：

Si-MCM-41; Basic catalysts; Potassium fluoride; Transesterification; Alkyl monoesters;

D O I：

10.1016/j.jece.2015.02.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

New solid catalysts with basic properties were obtained by treating Si-MCM-41 mesoporous molecular sieves with KF. The following characterization techniques were used in this study: XRD, SEM, TGA and BET. The experimental results indicated that the KF/Si-MCM-41 catalysts possess basic active sites dispersed on the surface, which generate basicity equivalent to that of [CTA(+)] Si-MCM-41. In general, the newly developed catalysts showed stability superior to that of [CTA(+)] Si-MCM-41 in leaching tests, as well as high catalytic activity in the transesterification reaction of soybean oil with methanol for the production of alkyl monoesters. The maximum rate of conversion into alkyl monoesters was 99.9% in 1 h of reaction at 343 K, using 5 wt.% of catalyst, and a molar ratio of oil to alcohol of 1:12. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：703 / 707

页数：5

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