Preparation and characterization of high-spinnability isotropic pitch from 1-methylnaphthalene-extracted low-rank coal by co-carbonization with petroleum residue

Seon Ho Lee, Song Mi Lee, Ui su Im, Sang Do Kim, Seong Ho Yoon, Byung rok Lee, Dong Hyun Peck, Yong Gun Shul, Doo Hwan Jung

Research output: Contribution to journalArticle

Abstract

Coal extract produced by solvent extraction of low-rank coal is not suitable for spinning due to its high oxygen content. In order to effectively overcome this limitation, soft pitch was produced by co-carbonization of coal extract and petroleum residues. The decrease in oxygen content was confirmed by physical property analyses of the soft pitches blended at different mixing ratios. A bridge/hydroaromatic structure of the soft pitch was observed during the co-carbonization. The produced spinnable pitch had a high spinnability and a softening point of 230 °C. This spinnable pitch, prepared by solvent extraction of low-rank coal, showed excellent spinnability and was heat-treated at 800 °C for 5 min to produce isotropic carbon fibers having diameters of 7 μm and a tensile strength of 1189 MPa. Thus, the co-carbonization of coal extract and petroleum residue is an effective method for the production of inexpensive spinnable pitch for isotropic carbon-fiber manufacture.

Original languageEnglish
Pages (from-to)186-194
Number of pages9
JournalCarbon
Volume155
DOIs
Publication statusPublished - 2019 Dec

Fingerprint

Coal
Petroleum
Carbonization
Crude oil
Solvent extraction
Carbon fibers
Oxygen
Tensile strength
Physical properties
1-methylnaphthalene
carbon fiber

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

Lee, Seon Ho ; Lee, Song Mi ; Im, Ui su ; Kim, Sang Do ; Yoon, Seong Ho ; Lee, Byung rok ; Peck, Dong Hyun ; Shul, Yong Gun ; Jung, Doo Hwan. / Preparation and characterization of high-spinnability isotropic pitch from 1-methylnaphthalene-extracted low-rank coal by co-carbonization with petroleum residue. In: Carbon. 2019 ; Vol. 155. pp. 186-194.
@article{3bcfada0537545d1a0cec65b821d058d,
title = "Preparation and characterization of high-spinnability isotropic pitch from 1-methylnaphthalene-extracted low-rank coal by co-carbonization with petroleum residue",
abstract = "Coal extract produced by solvent extraction of low-rank coal is not suitable for spinning due to its high oxygen content. In order to effectively overcome this limitation, soft pitch was produced by co-carbonization of coal extract and petroleum residues. The decrease in oxygen content was confirmed by physical property analyses of the soft pitches blended at different mixing ratios. A bridge/hydroaromatic structure of the soft pitch was observed during the co-carbonization. The produced spinnable pitch had a high spinnability and a softening point of 230 °C. This spinnable pitch, prepared by solvent extraction of low-rank coal, showed excellent spinnability and was heat-treated at 800 °C for 5 min to produce isotropic carbon fibers having diameters of 7 μm and a tensile strength of 1189 MPa. Thus, the co-carbonization of coal extract and petroleum residue is an effective method for the production of inexpensive spinnable pitch for isotropic carbon-fiber manufacture.",
author = "Lee, {Seon Ho} and Lee, {Song Mi} and Im, {Ui su} and Kim, {Sang Do} and Yoon, {Seong Ho} and Lee, {Byung rok} and Peck, {Dong Hyun} and Shul, {Yong Gun} and Jung, {Doo Hwan}",
year = "2019",
month = "12",
doi = "10.1016/j.carbon.2019.08.061",
language = "English",
volume = "155",
pages = "186--194",
journal = "Carbon",
issn = "0008-6223",
publisher = "Elsevier Limited",

}

Preparation and characterization of high-spinnability isotropic pitch from 1-methylnaphthalene-extracted low-rank coal by co-carbonization with petroleum residue. / Lee, Seon Ho; Lee, Song Mi; Im, Ui su; Kim, Sang Do; Yoon, Seong Ho; Lee, Byung rok; Peck, Dong Hyun; Shul, Yong Gun; Jung, Doo Hwan.

In: Carbon, Vol. 155, 12.2019, p. 186-194.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preparation and characterization of high-spinnability isotropic pitch from 1-methylnaphthalene-extracted low-rank coal by co-carbonization with petroleum residue

AU - Lee, Seon Ho

AU - Lee, Song Mi

AU - Im, Ui su

AU - Kim, Sang Do

AU - Yoon, Seong Ho

AU - Lee, Byung rok

AU - Peck, Dong Hyun

AU - Shul, Yong Gun

AU - Jung, Doo Hwan

PY - 2019/12

Y1 - 2019/12

N2 - Coal extract produced by solvent extraction of low-rank coal is not suitable for spinning due to its high oxygen content. In order to effectively overcome this limitation, soft pitch was produced by co-carbonization of coal extract and petroleum residues. The decrease in oxygen content was confirmed by physical property analyses of the soft pitches blended at different mixing ratios. A bridge/hydroaromatic structure of the soft pitch was observed during the co-carbonization. The produced spinnable pitch had a high spinnability and a softening point of 230 °C. This spinnable pitch, prepared by solvent extraction of low-rank coal, showed excellent spinnability and was heat-treated at 800 °C for 5 min to produce isotropic carbon fibers having diameters of 7 μm and a tensile strength of 1189 MPa. Thus, the co-carbonization of coal extract and petroleum residue is an effective method for the production of inexpensive spinnable pitch for isotropic carbon-fiber manufacture.

AB - Coal extract produced by solvent extraction of low-rank coal is not suitable for spinning due to its high oxygen content. In order to effectively overcome this limitation, soft pitch was produced by co-carbonization of coal extract and petroleum residues. The decrease in oxygen content was confirmed by physical property analyses of the soft pitches blended at different mixing ratios. A bridge/hydroaromatic structure of the soft pitch was observed during the co-carbonization. The produced spinnable pitch had a high spinnability and a softening point of 230 °C. This spinnable pitch, prepared by solvent extraction of low-rank coal, showed excellent spinnability and was heat-treated at 800 °C for 5 min to produce isotropic carbon fibers having diameters of 7 μm and a tensile strength of 1189 MPa. Thus, the co-carbonization of coal extract and petroleum residue is an effective method for the production of inexpensive spinnable pitch for isotropic carbon-fiber manufacture.

UR - http://www.scopus.com/inward/record.url?scp=85071400150&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85071400150&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2019.08.061

DO - 10.1016/j.carbon.2019.08.061

M3 - Article

AN - SCOPUS:85071400150

VL - 155

SP - 186

EP - 194

JO - Carbon

JF - Carbon

SN - 0008-6223

ER -