BIOSCEN: Modelling Biorefinery Scenarios

Juha Leppävuori (Editor), Pertti Koukkari (Editor)

Research output: Book/ReportReport

Abstract

Biorefining unit processes were studied in terms of their physicochemical modelling properties and parameters, complemented by surrogate metamodelling and extensive sensitivity analysis. The unit processes included flash condensation of the fast biomass pyrolysis, thermal and enzyme catalysed hydrolysis of lignocellulosic biomass and fermentation of the hydrolysis product to bioethanol and biobutanol. In addition, a flowsheet based mass and energy balance was developed for the bark biorefinery, the key factors of which were then assessed by using the elementary efficiency method for sensitivity analysis. With the results from hydrolysis and fermentation models, a comparison of the greenhouse gas emissions from barley straw based ethanol and butanol was performed. The bark-based biorefinery producing mainly tannin and ethanol proved to be economically challenging. The results also show that biobutanol is in general more demanding (in terms of greenhouse gas emissions) than the production of bioethanol.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages188
ISBN (Electronic)978-951-38-7902-0
Publication statusPublished - 2012
MoE publication typeNot Eligible

Publication series

SeriesVTT Technology
Number67
ISSN2242-1211

Fingerprint

hydrolysis
bark
fermentation
sensitivity analysis
ethanol
greenhouse gas
modeling
biomass
tannin
barley
pyrolysis
straw
energy balance
condensation
mass balance
enzyme
comparison
method
parameter
product

Keywords

  • biorefinery
  • material properties
  • modelling
  • parameter optimisation
  • pyrolysis oil condensation
  • lignocellulosic biomass
  • hydrolysis
  • fermentation
  • greenhouse gas emissions

Cite this

Leppävuori, J., & Koukkari, P. (Eds.) (2012). BIOSCEN: Modelling Biorefinery Scenarios. Espoo: VTT Technical Research Centre of Finland. VTT Technology, No. 67
Leppävuori, Juha (Editor) ; Koukkari, Pertti (Editor). / BIOSCEN : Modelling Biorefinery Scenarios. Espoo : VTT Technical Research Centre of Finland, 2012. 188 p. (VTT Technology; No. 67).
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Leppävuori, J & Koukkari, P (eds) 2012, BIOSCEN: Modelling Biorefinery Scenarios. VTT Technology, no. 67, VTT Technical Research Centre of Finland, Espoo.

BIOSCEN : Modelling Biorefinery Scenarios. / Leppävuori, Juha (Editor); Koukkari, Pertti (Editor).

Espoo : VTT Technical Research Centre of Finland, 2012. 188 p. (VTT Technology; No. 67).

Research output: Book/ReportReport

TY - BOOK

T1 - BIOSCEN

T2 - Modelling Biorefinery Scenarios

A2 - Leppävuori, Juha

A2 - Koukkari, Pertti

N1 - Project code: 70441

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AB - Biorefining unit processes were studied in terms of their physicochemical modelling properties and parameters, complemented by surrogate metamodelling and extensive sensitivity analysis. The unit processes included flash condensation of the fast biomass pyrolysis, thermal and enzyme catalysed hydrolysis of lignocellulosic biomass and fermentation of the hydrolysis product to bioethanol and biobutanol. In addition, a flowsheet based mass and energy balance was developed for the bark biorefinery, the key factors of which were then assessed by using the elementary efficiency method for sensitivity analysis. With the results from hydrolysis and fermentation models, a comparison of the greenhouse gas emissions from barley straw based ethanol and butanol was performed. The bark-based biorefinery producing mainly tannin and ethanol proved to be economically challenging. The results also show that biobutanol is in general more demanding (in terms of greenhouse gas emissions) than the production of bioethanol.

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KW - material properties

KW - modelling

KW - parameter optimisation

KW - pyrolysis oil condensation

KW - lignocellulosic biomass

KW - hydrolysis

KW - fermentation

KW - greenhouse gas emissions

M3 - Report

T3 - VTT Technology

BT - BIOSCEN

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ER -

Leppävuori J, (ed.), Koukkari P, (ed.). BIOSCEN: Modelling Biorefinery Scenarios. Espoo: VTT Technical Research Centre of Finland, 2012. 188 p. (VTT Technology; No. 67).