Issue 5, 2016
From the journal:

Green Chemistry

Mesoporous sulfonic acid silicas for pyrolysis bio-oil upgrading via acetic acid esterification†

Jinesh C. Manayil,a   Carlos V. M. Inocencio,a   Adam F. Lee ORCID logo *a  and  Karen Wilson*a  

* Corresponding authors

a European Bioenergy Research Institute, Aston University, Birmingham B4 7ET, UK
E-mail: a.f.lee@aston.ac.uk, k.wilson@aston.ac.uk
Tel: +44 (0)121 2044036

Abstract

Propylsulfonic acid derivatised SBA-15 catalysts have been prepared by post modification of SBA-15 with mercaptopropyltrimethoxysilane (MPTMS) for the upgrading of a model pyrolysis bio-oil via acetic acid esterification with benzyl alcohol in toluene. Acetic acid conversion and the rate of benzyl acetate production was proportional to the PrSO3H surface coverage, reaching a maximum for a saturation adlayer. Turnover frequencies for esterification increase with sulfonic acid surface density, suggesting a cooperative effect of adjacent PrSO3H groups. Maximal acetic acid conversion was attained under acid-rich conditions with aromatic alcohols, outperforming Amberlyst or USY zeolites, with additional excellent water tolerance.

Graphical abstract: Mesoporous sulfonic acid silicas for pyrolysis bio-oil upgrading via acetic acid esterification

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Article information

DOI
https://doi.org/10.1039/C5GC01889G
Article type
Paper
Submitted
13 Aug 2015
Accepted
09 Oct 2015
First published
09 Oct 2015
This article is Open Access
Creative Commons BY license

Green Chem., 2016,18, 1387-1394

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Mesoporous sulfonic acid silicas for pyrolysis bio-oil upgrading via acetic acid esterification

J. C. Manayil, C. V. M. Inocencio, A. F. Lee and K. Wilson, Green Chem., 2016, 18, 1387 DOI: 10.1039/C5GC01889G

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