主催: 社団法人 日本エネルギー学会
会議名: 第31回石炭科学会議
回次: 31
開催地: 札幌
開催日: 1994/08/31 - 1994/09/01
p. 223-226
The surface properties of hydrothermal treated coals were assessed with calorimetoric measurement, with acidic or basic proves as adsorbent and isooctane. The heat of adsorption of pyridine per surface area of coal decreased with the treatment temperature. The ratio of heat of adsorption to desorption decreased for pyridine, in contrast to increasing for phenol by hydrothermal treatment of coal. These results suggested that the hydrothermal treatment resulted in change of functional groups which may act as acidic or basic site on coal surface.