Feasibility and energetic evaluation of air stripping for bioethanol production.

Abstract:

:Stripping of mashes with air as stripping gas and low ethanol contents between 3 and 5wt% was investigated in terms of its suitability for continuous bioethanol production. Experiments in a Blenke cascade system were carried out and the results were compared with values obtained from theoretical vapour-liquid-equilibrium calculations. The whole stripping process was energetically evaluated by a simulation in ChemCAD and compared to conventional distillation. Therefore several parameters such as temperature, air volume flow and initial ethanol load of the mash were varied. Air stripping was found to be a suitable separation method for bioethanol from mashes with low concentrations. However, energetic aspects have to be considered, when developing a new process.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Schläfle S,Senn T,Gschwind P,Kohlus R

doi

10.1016/j.biortech.2017.02.001

subject

Has Abstract

pub_date

2017-05-01 00:00:00

pages

109-115

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(17)30106-2

journal_volume

231

pub_type

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