Absorption of carbon dioxide into laminar falling films of aqueous kaolin slurries containing sodium hydroxide

To confirm the theory for gas absorption accompanied by an instantaneous irreversible reaction in laminar falling films of power-law liquids which was presented in a previous paper, experiments were carried out on the absorption of pure carbon dioxide into aqueous kaolin slurries containing sodium hydroxide by using a long wetted-wall column. The experimental data were in fairly good agreement with the theoretical predictions, the average deviation being 3.0%. The discussion on the effect of the power-law index of the liquid upon the reaction factor suggested an approximate method of estimating the reaction factors for power-law liquids.