Relation of viscosity characteristics in CWM to coal rank.
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概要
- 論文の詳細を見る
To establish an evaluation system of coals for CWM, attempts were made with twenty kinds of coal from various countries and locations to study the relations of the rank of coal as bulk material to viscosity characteristics in CWM, in addition to surface-chemical properties such as water vapor adsorption and zeta potential.<BR>Various parameters of viscosity described in Fig. 2-b, such as <I>φ</I><SUB>0</SUB>, <I>α</I> and <I>φ</I><SUB>1000</SUB>, show almost the same tendency of reaching a constant level above about 85% carbon content in coal (Fig. 12 Curve a)—an outstanding feature of viscosity characteristics.<BR>The same tendencies were also observed in zeta potential, quantities of adsorption of water on coal surface, <I>φ</I><SUB>AD</SUB>, and of water occluded within aggregates of coal particles, <I>φ</I><SUB>OC</SUB>.<BR>The results on various parameters are rather scattered, and it is presumed necessary to study coal not only as bulk material but also on the basis of surface chemistry.
- The Society of Chemical Engineers, Japanの論文
著者
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Nishino Junya
Chemical Process Technology Department, Research Institute, Ishikawajima Harima Heavy Industries Co., Ltd.
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Kiyama Kazuhiko
Chemical Process Technology Department, Research Institute, Ishikawajima Harima Heavy Industries Co., Ltd.
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Seki Masao
Chemical Process Technology Department, Research Institute, Ishikawajima Harima Heavy Industries Co., Ltd.