In plots of dynamic binding capacities and absolute changes in bed porosity at maximum contraction, against the inverse of the mean hydrated particle radii, the anion-exchangers were observed to split into three distinct, but different clusters in each case.
The heat transfer coefficient increases with increasing particle size but it exhibits a local maximum with increasing continuous phase velocity and bed porosity.
However, the large grain sizes can preferably be packed to the adsorbent bed with increasing the bed porosity and then minimizing the packing bed density.
The smaller size particle, the more bed porosity and heat transfer.
Figure 2 Location of the maximum bed temperature and bed surface in relation to the average temperature of the bed.
The bed permeability and coordination number are determined by both the bed porosity and the particle shape.
The bed porosity data fitted well with Richardson Zaki equation with an exponent of 2.53.
At the same time, the grain size and OLV should provide fluidised bed porosity of above 0.58 0.78.
At the same time the grain size and OLR should provide the value of fluidized bed porosity more than 0.6.
The bed porosity was determined by the subtraction of one and the ratio between the true density and apparent density.
