Transesterification of Glycerol to Glycerol Carbonate Using KF/Ah03 Catalyst: The Role of Support and Basicity

Sandesh, Swetha and Shanbag, Ganapathi V and Halgeri, A B (2013) Transesterification of Glycerol to Glycerol Carbonate Using KF/Ah03 Catalyst: The Role of Support and Basicity. Catalysis Letters. ISSN 1572-879X

[img] PDF
Catta Let.pdf - Published Version
Restricted to Registered users only

Download (6MB) | Request a copy

Abstract

Glycerol carbonate was synthesized by transesterification of glycerol with dimethyl carbonate using KF supported. catalyst. KF was impregnated on various oxides and non-oxide supports like A1203, Si02, ZnO, Zr02, H-beta, and carbon to study the influence of the support on the catalytic performance. The preparation procedure of supported KF catalysts was modified to remove weakly adsorbed KF from the catalyst surface. The generation of basic sites by KF depends upon the extent of KF interaction with the support. KF/Al203 catalyst with optimized amount of 3.8 mmol KF, gave the highest activity with 95.8 % glycerol conversion and almost 100 % selectivity for glycerol carbonate. It was truly heterogeneous without any leaching of active sites and also showed good reusability. The catalyst exhibited better performance when compared to conventional solid base catalysts such as MgO, CaO and hydrotalcite.

Item Type: Article
Uncontrolled Keywords: Transesterification· Glycerol . Glycerol carbonate· Dimethyl carbonate· Solid base· KF/Al203
Subjects: Research > Research Center - Technical
Depositing User: MIT Library
Date Deposited: 02 Jul 2016 09:50
Last Modified: 02 Jul 2016 09:50
URI: http://eprints.manipal.edu/id/eprint/146465

Actions (login required)

View Item View Item