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A techno-economical comparison of three processes for the production of ethanol from pine

von Sivers, M and Zacchi, Guido LU (1995) In Bioresource Technology 51(1). p.43-52
Abstract
This study comprises a technical and economic comparison of three different processes for the production of fuel ethanol from pine. The processes were based on the same technical and economic assumptions. The main difference between the processes lies in the front end of each process, i.e. in the pretreatment of the raw material and in the hydrolysis of the hemicellulose and cellulose to sugars. The three processes compared are a concentrated hydrochloric acid process, a two-step dilute acid process with sulphur dioxide in the first and hydrochloric acid in the second hydrolysis step, and an enzymatic hydrolysis process, including steam pretreatment. The ethanol production costs found in this study are, excluding the capital costs, 2.43,... (More)
This study comprises a technical and economic comparison of three different processes for the production of fuel ethanol from pine. The processes were based on the same technical and economic assumptions. The main difference between the processes lies in the front end of each process, i.e. in the pretreatment of the raw material and in the hydrolysis of the hemicellulose and cellulose to sugars. The three processes compared are a concentrated hydrochloric acid process, a two-step dilute acid process with sulphur dioxide in the first and hydrochloric acid in the second hydrolysis step, and an enzymatic hydrolysis process, including steam pretreatment. The ethanol production costs found in this study are, excluding the capital costs, 2.43, 1.89 and 1.80 SEK/l, respectively, and including the capital costs 4.22, 4.29 and 4.03 SEK/l, respectively. Based on a sensitivity analysis, it was concluded that none of the processes can be eliminated as less economical than the others. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ETHANOL, ECONOMICS, PROCESS, PINE, ACID HYDROLYSIS, ENZYMATIC HYDROLYSIS
in
Bioresource Technology
volume
51
issue
1
pages
43 - 52
publisher
Elsevier
external identifiers
  • wos:A1995QR09700006
  • scopus:0028986505
ISSN
1873-2976
DOI
10.1016/0960-8524(94)00094-H
language
English
LU publication?
yes
id
ed4263ab-6d80-49b9-be09-ec2230f4db1e (old id 3911563)
date added to LUP
2013-06-28 12:32:55
date last changed
2017-11-19 04:08:54
@article{ed4263ab-6d80-49b9-be09-ec2230f4db1e,
  abstract     = {This study comprises a technical and economic comparison of three different processes for the production of fuel ethanol from pine. The processes were based on the same technical and economic assumptions. The main difference between the processes lies in the front end of each process, i.e. in the pretreatment of the raw material and in the hydrolysis of the hemicellulose and cellulose to sugars. The three processes compared are a concentrated hydrochloric acid process, a two-step dilute acid process with sulphur dioxide in the first and hydrochloric acid in the second hydrolysis step, and an enzymatic hydrolysis process, including steam pretreatment. The ethanol production costs found in this study are, excluding the capital costs, 2.43, 1.89 and 1.80 SEK/l, respectively, and including the capital costs 4.22, 4.29 and 4.03 SEK/l, respectively. Based on a sensitivity analysis, it was concluded that none of the processes can be eliminated as less economical than the others.},
  author       = {von Sivers, M and Zacchi, Guido},
  issn         = {1873-2976},
  keyword      = {ETHANOL,ECONOMICS,PROCESS,PINE,ACID HYDROLYSIS,ENZYMATIC HYDROLYSIS},
  language     = {eng},
  number       = {1},
  pages        = {43--52},
  publisher    = {Elsevier},
  series       = {Bioresource Technology},
  title        = {A techno-economical comparison of three processes for the production of ethanol from pine},
  url          = {http://dx.doi.org/10.1016/0960-8524(94)00094-H},
  volume       = {51},
  year         = {1995},
}