Issue 6, 2012

Glycerol utilization: solvent-free acetalisation over niobia catalysts

Abstract

With increasing biodiesel production, availability of glycerol is expected to increase. New processes are needed for converting this surplus glycerol to value-added chemicals. In this work, we used niobia catalysts for the liquid-phase acetalisation of glycerol without using any solvent. High conversions were achieved (∼80%), though water was present in the reaction system. The calcination temperature changed the strength as well as the nature of acidity of the samples. Samples with higher Brønsted acid strength exhibited higher catalytic performance. The results show that niobia is a water tolerant, reusable catalyst for glycerol acetalisation.

Graphical abstract: Glycerol utilization: solvent-free acetalisation over niobia catalysts

Article information

Article type
Paper
Submitted
23 Aug 2011
Accepted
16 Jan 2012
First published
01 Mar 2012

Catal. Sci. Technol., 2012,2, 1173-1179

Glycerol utilization: solvent-free acetalisation over niobia catalysts

G. S. Nair, E. Adrijanto, A. Alsalme, I. V. Kozhevnikov, D. J. Cooke, D. R. Brown and N. R. Shiju, Catal. Sci. Technol., 2012, 2, 1173 DOI: 10.1039/C2CY00335J

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