Ethanol production from industrial hemp: effect of combined dilute acid/steam pretreatment and economic aspects

Mariusz Kuglarz; Ingólfur Bragi Gunnarsson; Sven-Erik Svensson; Thomas Prade; Eva Johansson; Irini Angelidaki

doi:10.1016/j.biortech.2014.04.049

Ethanol production from industrial hemp: effect of combined dilute acid/steam pretreatment and economic aspects

Mariusz Kuglarz (Publisher), Ingólfur Bragi Gunnarsson, Sven-Erik Svensson, Thomas Prade, Eva Johansson, Irini Angelidaki

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

In the present study, combined steam (140-180 °C) and dilute-acid pre-hydrolysis (0.0-2.0%) were applied to industrial hemp (Cannabis sativa L.), as pretreatment for lignocellulosic bioethanol production. The influence of the pretreatment conditions and cultivation type on the hydrolysis and ethanol yields were also evaluated. Pretreatment with 1% sulfuric acid at 180 °C resulted in the highest glucose yield (73-74%) and ethanol yield of 75-79% (0.38-0.40 g-ethanol/g-glucose). Taking into account the costs of biomass processing, from field to ethanol facility storage, the field-dried hemp pretreated at the optimal conditions showed positive economic results. The type of hemp cultivation (organic or conventional) did not influence significantly the effectiveness of the pretreatment and subsequent enzymatic hydrolysis and ethanol fermentation.

Original language	English
Journal	Bioresource Technology
Volume	163
Pages (from-to)	236-243
ISSN	0960-8524
DOIs	https://doi.org/10.1016/j.biortech.2014.04.049
Publication status	Published - 2014

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title = "Ethanol production from industrial hemp: effect of combined dilute acid/steam pretreatment and economic aspects",

abstract = "In the present study, combined steam (140-180 °C) and dilute-acid pre-hydrolysis (0.0-2.0%) were applied to industrial hemp (Cannabis sativa L.), as pretreatment for lignocellulosic bioethanol production. The influence of the pretreatment conditions and cultivation type on the hydrolysis and ethanol yields were also evaluated. Pretreatment with 1% sulfuric acid at 180 °C resulted in the highest glucose yield (73-74%) and ethanol yield of 75-79% (0.38-0.40 g-ethanol/g-glucose). Taking into account the costs of biomass processing, from field to ethanol facility storage, the field-dried hemp pretreated at the optimal conditions showed positive economic results. The type of hemp cultivation (organic or conventional) did not influence significantly the effectiveness of the pretreatment and subsequent enzymatic hydrolysis and ethanol fermentation.",

author = "Mariusz Kuglarz and Gunnarsson, {Ing{\'o}lfur Bragi} and Sven-Erik Svensson and Thomas Prade and Eva Johansson and Irini Angelidaki",

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AU - Gunnarsson, Ingólfur Bragi

AU - Svensson, Sven-Erik

AU - Prade, Thomas

AU - Johansson, Eva

AU - Angelidaki, Irini

A2 - Kuglarz, Mariusz

PY - 2014

Y1 - 2014

N2 - In the present study, combined steam (140-180 °C) and dilute-acid pre-hydrolysis (0.0-2.0%) were applied to industrial hemp (Cannabis sativa L.), as pretreatment for lignocellulosic bioethanol production. The influence of the pretreatment conditions and cultivation type on the hydrolysis and ethanol yields were also evaluated. Pretreatment with 1% sulfuric acid at 180 °C resulted in the highest glucose yield (73-74%) and ethanol yield of 75-79% (0.38-0.40 g-ethanol/g-glucose). Taking into account the costs of biomass processing, from field to ethanol facility storage, the field-dried hemp pretreated at the optimal conditions showed positive economic results. The type of hemp cultivation (organic or conventional) did not influence significantly the effectiveness of the pretreatment and subsequent enzymatic hydrolysis and ethanol fermentation.

AB - In the present study, combined steam (140-180 °C) and dilute-acid pre-hydrolysis (0.0-2.0%) were applied to industrial hemp (Cannabis sativa L.), as pretreatment for lignocellulosic bioethanol production. The influence of the pretreatment conditions and cultivation type on the hydrolysis and ethanol yields were also evaluated. Pretreatment with 1% sulfuric acid at 180 °C resulted in the highest glucose yield (73-74%) and ethanol yield of 75-79% (0.38-0.40 g-ethanol/g-glucose). Taking into account the costs of biomass processing, from field to ethanol facility storage, the field-dried hemp pretreated at the optimal conditions showed positive economic results. The type of hemp cultivation (organic or conventional) did not influence significantly the effectiveness of the pretreatment and subsequent enzymatic hydrolysis and ethanol fermentation.

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DO - 10.1016/j.biortech.2014.04.049

M3 - Journal article

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SP - 236

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JO - Bioresource Technology

JF - Bioresource Technology

ER -

Ethanol production from industrial hemp: effect of combined dilute acid/steam pretreatment and economic aspects

Abstract

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