Selection of eco-efficient downstream separation configuration for isopropanol–butanol–ethanol purification process

Ilayda N. Oksal, Devrim B. Kaymak*

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2 Atıf (Scopus)

Özet

Nowadays, renewable and cleaner biofuel requirements increase with the increase in economic, environmental, and social concerns. Biobutanol is a preferable alternative fuel due to its outstanding properties compared to other alcohol-based biofuels. Two alternative downstream process configurations are designed in this study to obtain high-purity alcohol products from isopropanol–butanol–ethanol (IBE) fermentation broth with the same feed flowrate and compositions. In process configuration 1, the excess amount of water in the fermentation broth is mainly taken away using a preconcentration column. In process configuration 2, an extractor-extractive distillation hybrid system is used to remove the excess amount of water from the system. The results show that the first configuration is superior with a 62% reduction in total annual cost (TAC). Besides economic superiority, process configuration 1 is also quantitatively better than process configuration 2 in terms of gas emissions and energy demand to purify butanol. As a result, process configuration 1 is found as an eco-efficient downstream separation sequence for IBE purification process.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)2101-2115
Sayfa sayısı15
DergiChemical Engineering Communications
Hacim210
Basın numarası12
DOI'lar
Yayın durumuYayınlandı - 2023

Bibliyografik not

Publisher Copyright:
© 2023 Taylor & Francis Group, LLC.

Finansman

This work was supported by the Research Fund of the Istanbul Technical University under Grant number MGA-2019-42280.

FinansörlerFinansör numarası
Istanbul Teknik ÜniversitesiMGA-2019-42280

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