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ECN publication
The Conceptual Design of a ContinuousPervaporation Membrane Reactor for theProduction of 1,1-Diethoxy Butane
Agirre, I.; Belén Güemez, M.; Motelica, A.; Veen, H.M. van; Vente, J.F.; Arias, P.L.
Published by: Publication date:
ECN Biomass & Energy Efficiency 22-5-2012
ECN report number: Document type:
ECN-W--12-019 Article (scientific)
Number of pages:

Published in: AIChE Journal (Wiley), , June 2012, Vol.Vol. 58, No. 6, p.1862-1868.

Acetals are considered as an important bio-based diesel additives. Generally, the catalytic production of these compounds from an alcohol and an aldehyde suffers from a low conversion because of thermodynamic limitations. These limitations can be overcome through the in situ removal of the by-product water using, for example, a water selective membrane. A critical evaluation on the membrane performance, catalyst activity, optimal configuration, and feed composition leads to the conclusion that a combined reaction and separation is unlikely to be advantageous. The water permeance of the selected membrane was assessed to be too low in relation with the catalyst activity.

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