Prediction of Pore Size in Packed Bed Consisting of Four Sizes of Glass Spheres

Packed beds are used in many process industries (e.g. Adsorption, Absorption,Distillation, and Filtration). This research involved the study of packed bed properties and tests it in theoretical and experimental methods.The packing consist of four sizes of glass spheres and their diameters are: d1=10.6mm, d2=14.97mm, d3=20.89m,d4=25.84mm.The theoretical method was given by Latif involve evaluating the diameter of the pores, mean pore diameter, and the probability due to number, surface area, length, and volume .the results obtained using software programs (Q.BASIC, EXCEL) and these results shows that the probability of finding pore size is different for each distributions.The experimental work was by making a packed bed with different composition and layers but the same diameters used in theoretical methods and weigh the impurities before entering the packed bed and after leaving it to find the percent output .Three sizes of impurities were used and its diameters are: 1.23.3mm,4.2mm,and 6mm.Results obtained from the experimental work showed that the percent output of impurities decreased with increasing the number of layers;and also decreased with increasing the size of impurities for each value of number percent of spheres. Experimental results related with the theoretical results in order to find the relation between mean pore diameter and percent output of impurities for each bed.