Advanced

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

Zacchi, Guido LU and Axelsson, Anders LU (1989) In Biotechnology and Bioengineering 34(2). p.223-233
Abstract
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biotechnology and Bioengineering
volume
34
issue
2
pages
223 - 233
publisher
John Wiley & Sons
external identifiers
  • wos:A1989U864000010
  • scopus:0024673793
ISSN
1097-0290
DOI
10.1002/bit.260340211
language
English
LU publication?
yes
id
1628e776-7d14-4843-85d0-2263f26baad7 (old id 3911620)
date added to LUP
2013-06-28 11:00:11
date last changed
2017-08-20 03:43:39
@article{1628e776-7d14-4843-85d0-2263f26baad7,
  abstract     = {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.},
  author       = {Zacchi, Guido and Axelsson, Anders},
  issn         = {1097-0290},
  language     = {eng},
  number       = {2},
  pages        = {223--233},
  publisher    = {John Wiley & Sons},
  series       = {Biotechnology and Bioengineering},
  title        = {Economic evaluation of preconcentration in production of ethanol from dilute sugar solutions},
  url          = {http://dx.doi.org/10.1002/bit.260340211},
  volume       = {34},
  year         = {1989},
}