The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation

Franz Theuretzbacher; Johanna Blomqvist; Javier Lizasoain; Lena Klietz; Antje Potthast; Svein Jarle Horn; Paal J. Nilsen; Andreas Gronauer; Volkmar Passoth; Alexdander Bauer

doi:10.1016/j.biortech.2015.06.093

The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation

Franz Theuretzbacher
, Johanna Blomqvist
, Javier Lizasoain
, Lena Klietz
, Antje Potthast
, Svein Jarle Horn
, Paal J. Nilsen
, Andreas Gronauer
, Volkmar Passoth
, Alexdander Bauer

Publication: Contribution to journal › Journal article › peer-review

Abstract

Ethanol and biogas are energy carriers that could contribute to a future energy system independent of fossil fuels. Straw is a favorable bioenergy substrate as it does not compete with food or feed production. As straw is very resistant to microbial degradation, it requires a pretreatment to insure efficient conversion to ethanol and/or methane. This study investigates the effect of combining biological pretreatment and steam explosion on ethanol and methane yields in order to improve the coupled generation process. Results show that the temperature of the steam explosion pretreatment has a particularly strong effect on possible ethanol yields, whereas combination with the biological pretreatment showed no difference in overall energy yield. The highest overall energy output was found to be 10.86 MJ kg VS-1 using a combined biological and steam explosion pretreatment at a temperature of 200 degrees C. (C) 2015 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	7-13
Number of pages	7
Journal	Bioresource Technology
Volume	194
DOIs	https://doi.org/10.1016/j.biortech.2015.06.093
Publication status	Published - 2015

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Lignocellulose
Pretreatment
Effects
Methane
Ethanol

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10.1016/j.biortech.2015.06.093

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Theuretzbacher, F., Blomqvist, J., Lizasoain, J., Klietz, L., Potthast, A., Horn, S. J., Nilsen, P. J., Gronauer, A., Passoth, V., & Bauer, A. (2015). The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation. Bioresource Technology, 194, 7-13. https://doi.org/10.1016/j.biortech.2015.06.093

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title = "The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation",

abstract = "Ethanol and biogas are energy carriers that could contribute to a future energy system independent of fossil fuels. Straw is a favorable bioenergy substrate as it does not compete with food or feed production. As straw is very resistant to microbial degradation, it requires a pretreatment to insure efficient conversion to ethanol and/or methane. This study investigates the effect of combining biological pretreatment and steam explosion on ethanol and methane yields in order to improve the coupled generation process. Results show that the temperature of the steam explosion pretreatment has a particularly strong effect on possible ethanol yields, whereas combination with the biological pretreatment showed no difference in overall energy yield. The highest overall energy output was found to be 10.86 MJ kg VS-1 using a combined biological and steam explosion pretreatment at a temperature of 200 degrees C. (C) 2015 Elsevier Ltd. All rights reserved.",

keywords = "Lignocellulose, Pretreatment, Effects, Methane, Ethanol, Lignocellulose, Pretreatment, Effects, Methane, Ethanol",

author = "Franz Theuretzbacher and Johanna Blomqvist and Javier Lizasoain and Lena Klietz and Antje Potthast and Horn, \{Svein Jarle\} and Nilsen, \{Paal J.\} and Andreas Gronauer and Volkmar Passoth and Alexdander Bauer",

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doi = "10.1016/j.biortech.2015.06.093",

language = "English",

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Theuretzbacher, F, Blomqvist, J, Lizasoain, J, Klietz, L, Potthast, A, Horn, SJ, Nilsen, PJ, Gronauer, A, Passoth, V & Bauer, A 2015, 'The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation', Bioresource Technology, vol. 194, pp. 7-13. https://doi.org/10.1016/j.biortech.2015.06.093

TY - JOUR

T1 - The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation

AU - Theuretzbacher, Franz

AU - Blomqvist, Johanna

AU - Lizasoain, Javier

AU - Klietz, Lena

AU - Potthast, Antje

AU - Horn, Svein Jarle

AU - Nilsen, Paal J.

AU - Gronauer, Andreas

AU - Passoth, Volkmar

AU - Bauer, Alexdander

PY - 2015

Y1 - 2015

N2 - Ethanol and biogas are energy carriers that could contribute to a future energy system independent of fossil fuels. Straw is a favorable bioenergy substrate as it does not compete with food or feed production. As straw is very resistant to microbial degradation, it requires a pretreatment to insure efficient conversion to ethanol and/or methane. This study investigates the effect of combining biological pretreatment and steam explosion on ethanol and methane yields in order to improve the coupled generation process. Results show that the temperature of the steam explosion pretreatment has a particularly strong effect on possible ethanol yields, whereas combination with the biological pretreatment showed no difference in overall energy yield. The highest overall energy output was found to be 10.86 MJ kg VS-1 using a combined biological and steam explosion pretreatment at a temperature of 200 degrees C. (C) 2015 Elsevier Ltd. All rights reserved.

AB - Ethanol and biogas are energy carriers that could contribute to a future energy system independent of fossil fuels. Straw is a favorable bioenergy substrate as it does not compete with food or feed production. As straw is very resistant to microbial degradation, it requires a pretreatment to insure efficient conversion to ethanol and/or methane. This study investigates the effect of combining biological pretreatment and steam explosion on ethanol and methane yields in order to improve the coupled generation process. Results show that the temperature of the steam explosion pretreatment has a particularly strong effect on possible ethanol yields, whereas combination with the biological pretreatment showed no difference in overall energy yield. The highest overall energy output was found to be 10.86 MJ kg VS-1 using a combined biological and steam explosion pretreatment at a temperature of 200 degrees C. (C) 2015 Elsevier Ltd. All rights reserved.

KW - Lignocellulose

KW - Pretreatment

KW - Effects

KW - Methane

KW - Ethanol

KW - Lignocellulose

KW - Pretreatment

KW - Effects

KW - Methane

KW - Ethanol

UR - https://res.slu.se/id/publ/68495

U2 - 10.1016/j.biortech.2015.06.093

DO - 10.1016/j.biortech.2015.06.093

M3 - Journal article

C2 - 26176820

SN - 0960-8524

VL - 194

SP - 7

EP - 13

JO - Bioresource Technology

JF - Bioresource Technology

ER -

The effect of a combined biological and thermo-mechanical pretreatment of wheat straw on energy yields in coupled ethanol and methane generation

Abstract

UN SDGs

Keywords

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