Hydrothermal carbonization of pulp mill streams

Hanne Wikberg (Corresponding Author), Taina Ohra-aho, Mari Honkanen, Heimo Kanerva, Ali Harlin, Minnamari Vippola, Christiane Laine

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

The progress of the conversion, the yield, the structure and the morphology of the produced carbonaceous materials as a function of time were systematically studied with pyrolysis-GC/FID and FESEM microscope. The conversion of galactoglucomannan, bleached kraft pulp and TEMPO oxidized cellulose nanofibrils followed the reaction route of glucose being slower though with fibrous material, higher molar mass and viscosity. The conversion of kraft lignin was minor following completely different reaction route. Carbonaceous particles of different shape and size were produced with yields between 23 and 73% after 4h with being higher for lignin than carbohydrates. According to the results, potential pulp mill streams represent lignocellulosic resources for generation of carbonaceous materials.
Original languageEnglish
Pages (from-to)236-244
JournalBioresource Technology
Volume212
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Paper and pulp mills
Carbonization
mill
Lignin
lignin
oxidized cellulose
Bleached pulp
Kraft pulp
Molar mass
Carbohydrates
pyrolysis
Glucose
cellulose
carbohydrate
Cellulose
glucose
Microscopes
Pyrolysis
viscosity
Viscosity

Keywords

  • hydrothermal carbonization
  • pulp mill
  • galactoglucomannan
  • kraft pulp
  • kraft lignin

Cite this

Wikberg, Hanne ; Ohra-aho, Taina ; Honkanen, Mari ; Kanerva, Heimo ; Harlin, Ali ; Vippola, Minnamari ; Laine, Christiane. / Hydrothermal carbonization of pulp mill streams. In: Bioresource Technology. 2016 ; Vol. 212. pp. 236-244.
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Hydrothermal carbonization of pulp mill streams. / Wikberg, Hanne (Corresponding Author); Ohra-aho, Taina; Honkanen, Mari; Kanerva, Heimo; Harlin, Ali; Vippola, Minnamari; Laine, Christiane.

In: Bioresource Technology, Vol. 212, 2016, p. 236-244.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Hydrothermal carbonization of pulp mill streams

AU - Wikberg, Hanne

AU - Ohra-aho, Taina

AU - Honkanen, Mari

AU - Kanerva, Heimo

AU - Harlin, Ali

AU - Vippola, Minnamari

AU - Laine, Christiane

PY - 2016

Y1 - 2016

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AB - The progress of the conversion, the yield, the structure and the morphology of the produced carbonaceous materials as a function of time were systematically studied with pyrolysis-GC/FID and FESEM microscope. The conversion of galactoglucomannan, bleached kraft pulp and TEMPO oxidized cellulose nanofibrils followed the reaction route of glucose being slower though with fibrous material, higher molar mass and viscosity. The conversion of kraft lignin was minor following completely different reaction route. Carbonaceous particles of different shape and size were produced with yields between 23 and 73% after 4h with being higher for lignin than carbohydrates. According to the results, potential pulp mill streams represent lignocellulosic resources for generation of carbonaceous materials.

KW - hydrothermal carbonization

KW - pulp mill

KW - galactoglucomannan

KW - kraft pulp

KW - kraft lignin

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