New technology for producing fibrillar fines directly from wood

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A method for producing lignocellulosic fibrillar fines directly from moist wood through a grinding process was evaluated. The method is based on a conventional stone wood grinding process with a novel grinding stone surface structure. The grinding stone (wheel) with a surface profile serrated in the axial direction of the wheel, forces fibres to break down into fibrils instead of detaching as fibres from the wood matrix. The arrangement mimics the inclined feeding of a log against a grinding stone and is completed without any related technical difficulties. Typically over a 90% conversion rate to fines (passing the Standard Mesh 200 wire) were achieved. The characteristics of the fines were influenced by the details of the surface structures, the velocity of the grinding stones, the feeding rate of the woods, and the specific energy consumption. This method enables novel means to adjusting the structure and properties of paper and paperboard products, as well as those of novel fibre and fibre-composite products.
Original languageEnglish
Pages (from-to)5032-5041
JournalBioResources
Volume13
Issue number3
DOIs
Publication statusPublished - 2018
MoE publication typeNot Eligible

Fingerprint

grinding
Wood
Fibers
Surface structure
Wheels
Paperboards
Energy utilization
Wire
new technology
Composite materials
stone
matrix
fibre
method

Keywords

  • pulping
  • griding
  • griding stone
  • defibration
  • surface structure
  • wood
  • fines
  • fibril

Cite this

@article{67b83c90e1dd49c196aeb256eea288fa,
title = "New technology for producing fibrillar fines directly from wood",
abstract = "A method for producing lignocellulosic fibrillar fines directly from moist wood through a grinding process was evaluated. The method is based on a conventional stone wood grinding process with a novel grinding stone surface structure. The grinding stone (wheel) with a surface profile serrated in the axial direction of the wheel, forces fibres to break down into fibrils instead of detaching as fibres from the wood matrix. The arrangement mimics the inclined feeding of a log against a grinding stone and is completed without any related technical difficulties. Typically over a 90{\%} conversion rate to fines (passing the Standard Mesh 200 wire) were achieved. The characteristics of the fines were influenced by the details of the surface structures, the velocity of the grinding stones, the feeding rate of the woods, and the specific energy consumption. This method enables novel means to adjusting the structure and properties of paper and paperboard products, as well as those of novel fibre and fibre-composite products.",
keywords = "pulping, griding, griding stone, defibration, surface structure, wood, fines, fibril",
author = "Ilkka Nurminen and Erkki Saharinen and Jari Sirvi{\"o}",
year = "2018",
doi = "10.15376/biores.13.3.5032-5041",
language = "English",
volume = "13",
pages = "5032--5041",
journal = "BioResources",
issn = "1930-2126",
publisher = "North Carolina State University",
number = "3",

}

New technology for producing fibrillar fines directly from wood. / Nurminen, Ilkka (Corresponding Author); Saharinen, Erkki; Sirviö, Jari.

In: BioResources, Vol. 13, No. 3, 2018, p. 5032-5041.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - New technology for producing fibrillar fines directly from wood

AU - Nurminen, Ilkka

AU - Saharinen, Erkki

AU - Sirviö, Jari

PY - 2018

Y1 - 2018

N2 - A method for producing lignocellulosic fibrillar fines directly from moist wood through a grinding process was evaluated. The method is based on a conventional stone wood grinding process with a novel grinding stone surface structure. The grinding stone (wheel) with a surface profile serrated in the axial direction of the wheel, forces fibres to break down into fibrils instead of detaching as fibres from the wood matrix. The arrangement mimics the inclined feeding of a log against a grinding stone and is completed without any related technical difficulties. Typically over a 90% conversion rate to fines (passing the Standard Mesh 200 wire) were achieved. The characteristics of the fines were influenced by the details of the surface structures, the velocity of the grinding stones, the feeding rate of the woods, and the specific energy consumption. This method enables novel means to adjusting the structure and properties of paper and paperboard products, as well as those of novel fibre and fibre-composite products.

AB - A method for producing lignocellulosic fibrillar fines directly from moist wood through a grinding process was evaluated. The method is based on a conventional stone wood grinding process with a novel grinding stone surface structure. The grinding stone (wheel) with a surface profile serrated in the axial direction of the wheel, forces fibres to break down into fibrils instead of detaching as fibres from the wood matrix. The arrangement mimics the inclined feeding of a log against a grinding stone and is completed without any related technical difficulties. Typically over a 90% conversion rate to fines (passing the Standard Mesh 200 wire) were achieved. The characteristics of the fines were influenced by the details of the surface structures, the velocity of the grinding stones, the feeding rate of the woods, and the specific energy consumption. This method enables novel means to adjusting the structure and properties of paper and paperboard products, as well as those of novel fibre and fibre-composite products.

KW - pulping

KW - griding

KW - griding stone

KW - defibration

KW - surface structure

KW - wood

KW - fines

KW - fibril

U2 - 10.15376/biores.13.3.5032-5041

DO - 10.15376/biores.13.3.5032-5041

M3 - Article

VL - 13

SP - 5032

EP - 5041

JO - BioResources

JF - BioResources

SN - 1930-2126

IS - 3

ER -