主催: 日本エネルギー学会
共催: 化学工学会 (エネルギー部会), 大阪大学大学院工学研究科
会議名: 第39回石炭科学会議
回次: 39
開催地: 大阪大学 コンベンションセンター
開催日: 2002/10/29 - 2002/10/30
p. 21-22
In order to investigate the gasification mechanism, structure characterization of char is one of useful approaches. Solid state NMR measurements were performed for raw coals and chars obtained by a drop tube furnace (DTF) at 800, 1200, and 150℃. Demineralized chars treated by hydrochloric acid were also evaluated. Both of the chemical shift and the FWHM obtained by NMR spectra show good relationships with the size of carbon hexagonal network plane. Some structural differences were observed after demineralization because of a damage by strong acid.