Tadatoshi Chiba

TL;DR: In this article, it was shown that the volume fraction of the lighter component in the lower layer is constant regardless of the bulk bed composition, and that layer inversion occurs for a given particle mixture when the liquid velocity passes through a value at which the volume of the thinner component in lower layer becomes equal to the larger component in upper layer.

TL;DR: In this paper, a theoretical model to predict relationships between the bulk composition and the critical velocity for complete mixing is developed on the basis of momentum equations for each particle component, independently given from a unit cell model with assumptions of creeping flow around the particle within the fictitious spherical cell and of a potential flow outside the cell.

TL;DR: In this article, the authors measured the extent of gas exchange between the bubble and emulsion phases in gas-solid fluidized beds using ozone as a tracer and found that the exchange coefficient values measured for single bubbles, as seen in this study, were found to be roughly one third of that obtained from freely bubbling fluidized bed, which fact was attributed to the coalescence of bubbles in the freely bubblebed.

TL;DR: In situ proton nuclear magnetic resonance (1H-NMR) detected three components, G1, G2 and W having different transverse magnetization decays, in the coal tar pitch upon soaking.

TL;DR: In this paper, a kinetic model of carbonization of petroleum and coal tar pitches to toluene insoluble fraction (TI) was investigated under air and nitrogen gas blowing systems.