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

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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

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Publication details

The article was received on 14 Jul 2017, accepted on 23 Nov 2017 and first published on 24 Nov 2017


Article type: Paper
DOI: 10.1039/C7CY01416C
Citation: Catal. Sci. Technol., 2018, Advance Article
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    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, Advance Article , DOI: 10.1039/C7CY01416C

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