Issue 1, 2018

Bio-based acrylic acid from sugar via propylene glycol and allyl alcohol

Abstract

A new route for producing bio-based acrylic acid is proposed. It starts with the conversion of carbohydrates to propylene glycol, being main or by-product, and proceeds via a subsequent dehydration to allyl alcohol under gas-phase conditions over K-modified ZrO2 and a final oxidation over MoWVOx catalyst at atmospheric pressures. Although preliminary, this study shows the possibility to convert propylene glycol to allyl alcohol with ∼50 mol% selectivity (at ∼64 mol% conversion) and convert allyl alcohol to acrylic acid with ∼77 mol% selectivity (at ∼90 mol% conversion). The oxidation of unconverted propylene glycol or the by-products propanal and 1-propanol results in propionic acid under these conditions. A preliminary process flow scheme is proposed based on the distillation resistance of the reaction products.

Graphical abstract: Bio-based acrylic acid from sugar via propylene glycol and allyl alcohol

Supplementary files

Article information

Article type
Paper
Submitted
14 Jul 2017
Accepted
23 Nov 2017
First published
24 Nov 2017

Catal. Sci. Technol., 2018,8, 289-296

Bio-based acrylic acid from sugar via propylene glycol and allyl alcohol

C. V. Pramod, R. Fauziah, K. Seshan and J.-P. Lange, Catal. Sci. Technol., 2018, 8, 289 DOI: 10.1039/C7CY01416C

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