Design of a Novel Pass-Through Distillation Process for Bioethanol Recovery

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Abstract

Pass-through distillation (PTD) is a novel separation technology that can effectively overcome challenges related to using vacuum distillation in bio-based processes (defined temperature limit for evaporation that might result in very low condensation temperature). This method allows evaporation and condensation to be performed at different pressures by decoupling them using an absorption-desorption loop with an electrolyte absorption fluid. This original paper presents a process design for large-scale bioethanol recovery from fermentation broth (production capacity ~100 ktonne/y) by PTD. The flexibility of the novel PTD technology is expanded by combining it with heat pumps (PTD-HP) and multi-effect distillation (PTD-MED). Total cost and energy requirements for the recovery of high-purity bioethanol (99.8 wt%) are respectively 0.122 $/kgEtOH and 1.723 kWthh/kgEtOH for PTD-HP, and 0.131 $/kgEtOH and 1.834 kWthh/kgEtOH for PTD-MED, proving the effectiveness of the newly designed recovery processes for concurrent alcohol recovery and fermentation.
Original languageEnglish
Title of host publicationProceedings of the 34th European Symposium on Computer Aided Process Engineering
Subtitle of host publication15th International Symposium on Process Systems Engineering (ESCAPE34/PSE24)
EditorsFlavio Manenti, Gintaras V. Reklaitis
Place of PublicationAmsterdam/Kidlington/Cambridge, MA
PublisherElsevier
Pages2443-2448
Number of pages6
ISBN (Print)978-0-443-33897-7, 978-0-443-28824-1
DOIs
Publication statusPublished - 2024
Event34th European Symposium on Computer-Aided Process Engineering / 15th International Symposium on Process Systems Engineering - Palazzo dei Congressi - Villa Vittoria, Florence, Italy
Duration: 2 Jun 20246 Jun 2024
https://www.aidic.it/escape34-pse24

Publication series

NameComputer Aided Chemical Engineering
PublisherElsevier
Volume53
ISSN (Print)1570-7946

Conference

Conference34th European Symposium on Computer-Aided Process Engineering / 15th International Symposium on Process Systems Engineering
Abbreviated titleESCAPE34 - PSE24
Country/TerritoryItaly
CityFlorence
Period2/06/246/06/24
Internet address

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • bioethanol
  • industrial fermentation
  • pass-through distillation

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