主催: 一般社団法人 日本エネルギー学会 石炭科学部会, 一般社団法人 日本エネルギー学会 コークス工学研究部会
共催: 日本学術振興会 石炭・炭素資源利用技術第148委員会, 日本エネルギー学会 重質油部会
後援: 新潟大学
会議名: 第48回石炭科学会議
回次: 48
開催地: 朱鷺メッセ 新潟コンベンションセンター
開催日: 2011/10/24 - 2011/10/25
This study aim to investigate the effects of HPC addition on the thermoplasticity of coal blends. The thermolasticity of coal blends with HPC were monitored with in-situ high temperature ^1H-NMR relaxation measurement. The solid echo pulse sequence was employed to generate ^1H-NMR transverse relaxation signals. The echo signals obtained during heat treatment under a flow of nitrogen at a heating rate of 3K/min were deconvoluted into a set of one Gaussian and two Exponential decay components which represent the immobile, intermediate and mobile component, respectively. The changes in the fractional intensity of mobile component, fHm, calculated from the signals well corresponded to the softening and resolidification phenomena of coal blends. The fHm and molecular mobility of mobile component represented by Spin-Spin relaxation time, T2Hm, increased with HPC addition at lower temperature range. At higher temperature range, that is thermoplastic temperature range, fHm and T2Hm shows almost the same value as those for original coal blends. These results indicate that the HPC can be added as a substitution for coking coals.