Carbon letters

  • Volume 24
  • /
  • Pages.28-35
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  • 2017
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  • 1976-4251(pISSN)
  • /
  • 2233-4998(eISSN)
Korean Carbon Society (한국탄소학회)
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Catalytic hydrogenation-assisted preparation of melt spinnable pitches from petroleum residue for making mesophase pitch based carbon fibers

  • Lee, Dong Hun (Multi-Material Research Center, Korea Automotive Technology Institute) ;
  • Choi, Jisu (Chemical & Polymer Lab, R&D Center, GS Caltex Corporation) ;
  • Oh, Young Se (Chemical & Polymer Lab, R&D Center, GS Caltex Corporation) ;
  • Kim, Yoong Ahm (Department of Polymer Engineering, Graduate School, School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute, Chonnam National University) ;
  • Yang, Kap Seung (Department of Polymer Engineering, Graduate School, School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute, Chonnam National University) ;
  • Ryu, Ho Jin (Department of Nuclear & Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Yong Jung (Research Institute of Industrial Science & Technology)
  • Received : 2017.01.14
  • Accepted : 2017.08.09
  • Published : 2017.10.31
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Abstract

We demonstrated an effective way of preparing melt spinnable mesophase pitches via catalytic hydrogenation of petroleum residue (fluidized catalytic cracking-decant oil) and their subsequent thermal soaking. The mesophase pitches thus obtained were analyzed in terms of their viscosity, elemental composition, solubility, molecular weight, softening point and optical texture. We found that zeolite-induced catalytic hydrogenation under high hydrogen pressure contributed to a large variation in the properties of the pitches. As the hydrogen pressure increased, the C/H ratio decreased, and the solubility in n-hexane increased. The mesophase pitch with entirely anisotropic domains of flow texture exhibited good meltspinnability. The mesophase carbon fibers obtained from the catalytically hydrogenated petroleum residue showed moderate mechanical properties.

Keywords

References

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