Ethanol to 1,3-butadiene conversion by using ZrZn-containing MgO/SiO2 systems prepared by co-precipitation and effect of catalyst acidity modification

Da Ros, Simoní, Jones, Matthew D., Mattia, Davide, Pinto, Jose C., Schwaab, Marcio, Noronha, Fabio B., Kondrat, Simon A., Clarke, Tomos J. ORCID: https://orcid.org/0000-0001-9888-3072 and Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874 2016. Ethanol to 1,3-butadiene conversion by using ZrZn-containing MgO/SiO2 systems prepared by co-precipitation and effect of catalyst acidity modification. ChemCatChem 8 (14) , pp. 2376-2386. 10.1002/cctc.201600331

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Abstract

The conversion of ethanol to 1,3-butadiene (1,3-BD) has been investigated over ZrO2- and ZnO-containing magnesia silica oxides prepared by a co-precipitation method at different Mg-to-Si molar ratios. The effect of reaction temperature and ethanol flow rate was investigated. The catalyst acidity was modified through the addition of alkali metals (Na, K and Li) to the final materials. Catalysts were characterised by nitrogen physisorption analysis, X-ray diffraction, scanning electron microscopy with energy dispersive X-ray, temperature-programmed desorption of ammonia, infrared spectroscopy and 29Si/(7Li) NMR spectroscopy. The catalytic results showed that the controlled reduction of catalyst acidity allows ethanol dehydration to be suppressed, whilst increasing 1,3-BD selectivity. The best catalytic performance achieved 72 mol % for the combined 1,3-BD and acetaldehyde selectivity.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Wiley
ISSN:	1867-3880
Date of First Compliant Deposit:	21 June 2016
Date of Acceptance:	10 May 2016
Last Modified:	10 Nov 2024 09:45
URI:	https://orca.cardiff.ac.uk/id/eprint/92028

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