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02-04-2019 | Original

Comparison of pyrolyzed lignin before and after milled wood lignin purification of Norway spruce with increasing steam explosion

Authors: Ida Aarum, Anders Solli, Hördur Gunnarsson, Dayanand Kalyani, Hanne Devle, Dag Ekeberg, Yngve Stenstrøm

Published in: Wood Science and Technology | Issue 3/2019

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Abstract

Increasing energy and chemical needs have to be covered by renewable resources, such as biomass, in the near future. Steam explosion is a green pretreatment for utilizing biomass, but it produces a by-product, pseudo-lignin. By comparing milled wood lignin purified and unpurified samples after steam explosion with pyrolysis–GC–MS, the components of pseudo-lignin should be evident. 2D NMR HSQC was also conducted on the purified samples, in addition to compositional analysis after steam explosion. After steam explosion, there is about 6 wt% of pseudo-lignin, and the pyrolysis shows an increase in diol benzenes and furan components in the unpurified samples, which is associated with pseudo-lignin.

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Appendix
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Metadata
Title
Comparison of pyrolyzed lignin before and after milled wood lignin purification of Norway spruce with increasing steam explosion
Authors
Ida Aarum
Anders Solli
Hördur Gunnarsson
Dayanand Kalyani
Hanne Devle
Dag Ekeberg
Yngve Stenstrøm
Publication date
02-04-2019
Publisher
Springer Berlin Heidelberg
Published in
Wood Science and Technology / Issue 3/2019
Print ISSN: 0043-7719
Electronic ISSN: 1432-5225
DOI
https://doi.org/10.1007/s00226-019-01088-x