Wang Jianguo, Zhang Jiayu and Pang Li(Department of Chemistry, Beijing University). Kinetics and Penetration Depth for Catalyst Preparation by Impregnation[J]. CIESC Journal, 1985, (1).
Wang Jianguo, Zhang Jiayu and Pang Li(Department of Chemistry, Beijing University). Kinetics and Penetration Depth for Catalyst Preparation by Impregnation[J]. CIESC Journal, 1985, (1).DOI:
For a shell- or zone-progressive process of sorption
if the amount of solute in solution held in the pores of the catalyst carrier can be neglected as compared to that adsorbed
the fraction of impregnation f can be expressed as follows: where for 0.1≤f≤0.45
A =0.244+0.13M and for 0.45≤f≤0.90
A = 0.335M1.44 + 0.460 B=1.23M1.53 + 2.68 or where for 0.2≤f≤0.45
E=0.01 F=1.66 + 0.22M and for 0.45≤f≤0.90
E =(0.96M1.67 + 2.43) ×10-2 F=0. 869+0.13Mor The penetration depth l can be calculated with the following equations: or OT For the impregnation of η-A12O3 spheres with H2PtCl6 solution
the calculated values of penetration depth agree well with experimental values.