Separation of biobutanol from synthetic fermentation mixtures using unidirectional small pore pure silica zeolites

Eduardo Pérez-Botella, Benjamin Claessens, Susana Valencia, Fernando Rey, Joeri Denayer

Onderzoeksoutput: Poster

1 Citaat (Scopus)
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Samenvatting

The adsorptive vapour phase separation of 1-butanol from a synthetic ABE (acetone, 1-butanol, ethanol) mixture has been studied for the first time on a set of unidirectional small pore pure silica zeolites with ITW, MTF, RTH and STT structures with different pore size and topology. With this systematic approach, we provide insight into the structural and surface properties that can improve the vapour phase recovery of biobutanol. The influence of operation parameters, such as the temperature (40–80 °C), the total flow, and presence/absence of humidity and CO 2 have been studied. For this application, adsorbents need to possess pore openings with one of their dimensions larger than 4.1 Å and cavities with diameters above 7 Å. Si-STT zeolite presents a remarkable selectivity towards 1-butanol, which is not affected by the presence of water or CO 2 in the mixture or by an increase in the temperature. Si-STT results an excellent and robust adsorbent for this separation at conditions close to those of the headspace of the ABE fermenter, achieving purities of 90–93% at recoveries between 90 and 96%.

Originele taal-2English
Pagina's173-174
Aantal pagina's2
DOI's
StatusPublished - dec 2022
Evenementthe XLII Iberian Adsorption Meeting (42RIA) - Universitat Politècnica de València (UPV), Valencia, Spain
Duur: 13 sep 202216 sep 2022

Conference

Conferencethe XLII Iberian Adsorption Meeting (42RIA)
Land/RegioSpain
StadValencia
Periode13/09/2216/09/22

Bibliografische nota

Funding Information:
The synthesis of pure silica zeolites Si-ITW [20,21], Si-MTF [22], Si-RTH [23] and Si-STT [24] has been carried out using previously established procedures detailed in the Supporting Information (SI).The authors want to thank the Spanish Ministry of Science and Innovation and the Spanish Agency of Research for their funding via Project RTI2018-101784-B-I00. The Generalitat Valenciana, Conselleria d'Innovació, Universitats, Ciència y Societat Digital is acknowledged for their funding via project Prometeo/2021/077. EP-B acknowledges the Spanish Ministry of Education and Professional Training for the grant FPU15/01602 and the additional funding for the stay EST18/00213. Thanks to Gino V. Baron for measuring and analysing the Ar isotherms on the Si-RTH material. Very special thanks to Miguel Palomino for measuring the vapour isotherms on BelSorp Max II at the ITQ. The Microscopy Service of the UPV is acknowledged for their help in sample characterisation.Supporting Information (SI): Synthesis procedures, additional characterisation and adsorption results. Vapour phase mixture experiments conditions and data analysis procedure.

Funding Information:
The authors want to thank the Spanish Ministry of Science and Innovation and the Spanish Agency of Research for their funding via Project RTI2018-101784-B-I00 . The Generalitat Valenciana , Conselleria d’Innovació, Universitats, Ciència y Societat Digital is acknowledged for their funding via project Prometeo/2021/077 . EP-B acknowledges the Spanish Ministry of Education and Professional Training for the grant FPU15/01602 and the additional funding for the stay EST18/00213 . Thanks to Gino V. Baron for measuring and analysing the Ar isotherms on the Si-RTH material. Very special thanks to Miguel Palomino for measuring the vapour isotherms on BelSorp Max II at the ITQ. The Microscopy Service of the UPV is acknowledged for their help in sample characterisation.

Publisher Copyright:
© 2022 Elsevier Inc.

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

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