GAS-ABSORPTION WITH ZERO-ORDER CHEMICAL-REACTION

The governing differential equation for gas absorption in laminar falling film with zero-order homogeneous reaction is solved analytically by the method of separation of variables, and subsequent solution with confluent hypergeometric function. The result for concentration profile was obtained in the forms of a sum of a polynomial and an infinite series of hypergeometric functions. An enhancement factor, E, is defined as the ratio of the calculated absorption rates and the absorption rates found from a simple penetration model. When the Hatta number, ROOT M prime is greater than 2, the enhancement factor is given by a simplified form with an error of less than 2%.