83. Influence of particle diameter upon methanol sorption on Taiheiyo coal

Abstract

Sorption phenomena of methanol on Taiheiyo coal were investigated by repeated uptake and desorption experiments, using various size of coal particles. By comparing methanol sorption isotherms of the samples, it appears that sorption phenomena of methanol on coal is strongly affected by the particle size. As soon as the particle size increases, sorption rate is slower and difference between sorption isotherms for the 1st and the 2nd run is bigger. Particle size could be correlated with the surface of particle, which behaves as "entrance" for methanol sorbing, and influence diffusion inside particle.