53.配合炭加熱時の粘度変化

概要

論文の詳細を見る
Thermoplasticity of two different coals and their blends was investigated upon isothermal/non-isothermal heating at temperature of 600-800K. Changes in viscosity (η) and fraction of liquid (φ_L; defined as that of mobile hydrogen) of softening coal in a form of disk were measured by means of a variable-force-loading needle penetrometry and a proton nuclear magnetic resonance, respectively. η and φ_L changed with temperature and time over ranges of 10^4-10^<10>Pa s and 0.03-0.53, respectively, depending on the blending ratio and also the heating mode. For every single-coal/blend, a single linear relationship between logη and φ_L, i.e., logη=a-bφ_L, was confirmed over the temperature range and regardless of heating mode, which indicated that the softening coal behaved as a mixture of liquid and "deformable" solid. Both the parameters, a and b, were linear functions of the blending ratio, and the logη-φ_L relationships for the blends were thus predictable from those for the single coals.
一般社団法人日本エネルギー学会の論文
2006-10-12