99Introduction to Kinetics and Chemical Reactors
adsorbent structure becomes stable. At higher temperatures, moisture with other volatile
matters goes out and also the adsorbed compounds are desorbed so that the entire surface
of the catalyst becomes available for re-adsorption.
2A.4.2.2 Adsorption of Different Dyes over Zeolite
The adsorbent used in the experiment was zeolite synthesised from y ash. Dyes solu-
tion with a concentration of 1000 mg/L was prepared from analytical-grade reagent
and DDW. Adsorption kinetics and isotherm experiments for all samples were under-
taken using a batch equilibrium technique. The adsorption of dye was performed by
shaking 0.1 g of adsorbent in 100 mL of dye solution with an initial concentration of
50–1