The production of the green fuel acetaldehyde dibutylacetal (1,1-dibutoxyethane, DBE) was implemented by means of a new hybrid technology, the Simulated Moving Bed Membrane Reactor (PermSMBR), which consists in a Simulated Moving Bed Reactor (SMBR) integrated with membranes. The PermSMBR and SMBR processes performances were numerically evaluated and compared. The new hybrid technology proved to be a very efficient process for DBE production, leading to a productivity of 70.77 kg DBE ·L resin -1 ·day -1 with a desorbent consumption of 0.33 L n-Butanol /kg DBE, which corresponds to a productivity enhancement of 31% and a desorbent consumption reduction of 88% when compared with the SMBR technology.
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Pereira et al. (2011) studied this question.
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