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2020 Vol.52, Issue 1 Preview Page
Glycol Ether-Organosolv Pulping Process of Radiata Pine and Comparison of Characteristics with UKP

라디에타 소나무의 Glycol Ether-Organosolv 펄프화 및 UKP와의 특성 비교

Kang-Jae Kim1
,
Ji-Ae Ryu2
,
Sa Rang Choi2
,
Beom-Gyu Jung1
,
Jung Myoung Lee3‡
,
Tae-Jin Eom3†
김강재 1
,
류지애 2
,
최사랑 2
,
정범규 1
,
이중명 3‡
,
엄태진 3†
1Agricultural Science and Technology Research Institute, Kyungpook National University
2Department of Wood Science and Technology, Kyungpook National University
3Major in Wood Science and Technology, School of Forestry, Science and Landscape Architecture & Agricultural Science and Technology Research Institute, Kyungpook National University
1경북대학교 농업과학기술연구소, 연구원
2경북대학교 임산공학과, 학생
3경북대학교 산림과학·조경학부 임산공학전공 및 농업과학기술연구소, 교수
†Corresponding author: E-Mail: tjeom@knu.ac.kr (Address: Major in Wood Science and Technology, School of Forestry, Science and Landscape Architecture, Kyungpook National University, Daegu, 41566, Republic of Korea)
‡Co-corresponding Author: E-Mail: jmylee@knu.ac.kr (Address: Major in Wood Science and Technology, School of Forestry, Science and Landscape Architecture, Kyungpook National University, Daegu, 41566, Republic of Korea)
28 February 2020. pp. 94-102
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Abstract

The LAS (low temperature, atmospheric pressure and short reaction time) process is a bioconversion of biomass using glycol ether and acidic catalyst and is an organosolv process. In this study, the LAS process was applied to identify the possibility of pulping of radiata pine. The pulp prepared in the reaction for 60 minutes at a temperature of 120℃ with liquor ratio of 1:4 was selected as the optimal LAS pulp. LAS pulp had lower fiber length, higher residual lignin content and lower degree of polymerization than unbleached kraft pulp (UKP). The tensile strength of handsheets made from LAS pulp was lower than that of UKP due to the low hemicellulose content, short fiber length and removal of amorphous cellulose. That is, LAS pulping produces fibers with a high percentage of cellulose because the sulfuric acid catalyst elutes many hemicelluloses. Therefore, LAS pulp is difficult to expect the advantages as a paper pulp. However, it is thought that LAS pulp with high cellulose content could be applied as a dissolving pulp containing lignin.

Keywords
Low temperature
atmospheric pressure and short reaction time (LAS) process
glycol ether
organosolv pulping
spectroscopical property
neutral sugar content
References

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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 52
  • No :1
  • Pages :94-102
  • Received Date : 2020-02-04
  • Revised Date : 2020-02-20
  • Accepted Date : 2020-02-22
  • DOI :https://doi.org/10.7584/JKTAPPI.2020.02.52.1.94
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