| Project/Area Number |
07044313
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| Research Category |
Grant-in-Aid for International Scientific Research.
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| Allocation Type | Single-year Grants |
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
KORAI Yozo Kyushu University, Institute of Advanced Material Study, Associate Professor, 機能物質科学研究所, 助教授 (50122693)
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| Co-Investigator(Kenkyū-buntansha) |
劉 承坤 忠南大学校, 工科大学・化学工学科, 教授
梁 甲承 全南大学校, 工科大学・繊維工学科, 助教授
SAKANISHI Kinya Kyushu University, Institute of Advanced Material Study, Assistant, 機能物質科学研究所, 助手 (60183365)
MOCHIIDA Isao Kyushu University, Institute of Advanced Material Study, Professor, 機能物質科学研究所, 教授 (20037758)
YANG Kap seung Chonnam National University, Department of Textile Engineering, Associate Profes
RYU Seung kon Chonnam National University, Department of Chemical Engineering, Professor
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| Project Period (FY) |
1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Keywords | activated CF / quinoline / isoquinoline / active carbon / desulfurization / denitrogenation / hetero atom / pitch |
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| Research Abstract |
Structure and properties of nitrogen containing pitches prepared catalytically from quinoline and lsiquinoline by aid of AlCl_3 were studied. In spite of the same preparative conditions, quinoline exhibited higher pitch yield, slightly higher softening point and higher molecular weight. Both of quinoline and isoquinoline pitches which were prepared at 280ﾟC for 4hrs were isotropic, however quinoline pitch was converted to mesophase pitch after heat-treatment at 380ﾟC for 6hrs in absence of AlCl_3. On the contrary isoquinoline pitch could not produce mesophase pitch.The condensation mechanism is discussed by taking account of different nitrogen Iocation of uinoline and isoquinoline in the 1 or 2 position of the naphthalene ring.
Quinoline and isoquinoline pitches were found to be carbonized to cokes of different optical textures. Quinoline pitch exhibited large flow domain and goo graphitizability which was measured by means of X-ray diffraction, whereas isoquinoline pitch produced isotropic cokes and poor graphitizability. Dehydrogenation was very similar all through the carbonization process, while the elimination rate of nitrogen was very different in the carbonization. The carbonization process was investigated in terms of behavior of nitrogen atom and changes of properties o pitches during the carbonization. The basicity of produced cokes was also examined.
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