The absorption of gases in aqueous activated carbon slurries enhanced by adsorbing or catalytic particles

The enhanced absorption of gases in aqueous activated carbon slurries of fine particles is studied with an instationary absorption model taking into account the finite adsorption capacity of the carbon particles, and with a stationary geometrical model, which describes the absorption into a highly reactive and concentrated slurry. These models are applied to explain literature results on activated carbon slurries(”grazing“ effect) and results obtained on hydroxylamine production in a slurry reactor. With the results of the two presented models it can be understood that even in intensively agitated reactors enhanced absorption is possible.