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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 38, 2016 - Issue 12
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Articles

Nitrogen explosion pretreatment of lignocellulosic material for bioethanol production

Marti TuttInstitute of Technology, Estonian University of Life Sciences, Tartu, EstoniaCorrespondence[email protected]
,
Merlin RaudInstitute of Technology, Estonian University of Life Sciences, Tartu, Estonia
,
Heike KahrUpper Austria University of Applied Sciences, Wels Campus, Wels, Austria
,
Manuel PointnerUpper Austria University of Applied Sciences, Wels Campus, Wels, Austria
,
Jüri OltInstitute of Technology, Estonian University of Life Sciences, Tartu, Estonia
&
Timo KikasInstitute of Technology, Estonian University of Life Sciences, Tartu, Estonia
Pages 1785-1789 | Published online: 31 May 2016
 
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ABSTRACT

A novel method for the pretreatment of lignocellulosic material is investigated in this work, using floodplain meadow hay as a feedstock for bioethanol production. Pressurized nitrogen (N2) pretreatment is combined with explosive decompression to achieve high glucose yields with simple technology and low energy input. Results show that N2 explosion yields hydrolysis efficiencies up to 71.8%. The highest hydrolysis efficiency was achieved at a temperature of 210°C with a cellulose to glucose conversion rate of 195.1 g kg−1 of biomass.

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