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Economic evaluation of preconcentration in production of ethanol from dilute sugar solutions

In English

Författare

Summary, in English

The economic feasibility of preconcentrating dilute sugar solutions prior to fermentation is investigated. Two methods, evaporation and reverse osmosis, are compared. A computer program to determine the optimal preconcentration conditions for glucose solutions of 1.5–16 wt% has been developed. It was used to compute the fractional cost for labor and maintenance, preconcentration, fermentation, and distillation. Preconcentration with evaporation resulted in a higher total cost, compared with no preconcentration, for all cases studied, although a six-effect unit was used. Reverse osmosis was found to be economically feasible for preconcentration to about 5–10 wt % depending on the concentration of the feed.

Publiceringsår

1989

Språk

Engelska

Sidor

223-233

Publikation/Tidskrift/Serie

Biotechnology and Bioengineering

Volym

34

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley & Sons Inc.

Ämne

  • Chemical Engineering

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1097-0290