Absorption with first order chemical reaction into a liquid film in laminar flow

Abstract

Absorption with first order chemical reaction into a liquid film in laminar flow was analysed for the cases of zero and finite resistance in the gas phase. The result was obtained in 7, 213 (1974). (8) Danckwerts P. V., Trans. Faraday Soc., 46, 300 (1960) (9) Tamir. A.

Enhancement Factor for Gas Absorption in a Finite Liquid Layer. Part 3: Instantaneous and Second‐Order Reactions in a Liquid in Laminar Flow

“…(22) is indicated in Tab. (22)) and the simulation data in the case of an instantaneous reaction in a liquid layer of finite thickness in laminar flow. It can describe the simulation data with a relative error below 3 %.…”

“…Relative error between E i,layer values predicted by the developed approximate expression (Eq. (22)) and the simulation data in the case of an instantaneous reaction in a liquid layer of finite thickness in laminar flow. tion of the enhancement factor for gas absorption with an instantaneous reaction in a finite liquid layer in laminar flow.…”

“…During the past several decades, extensive research efforts have been devoted to gas absorption with or without an irreversible liquid-phase chemical reaction into a Newtonian liquid with a laminar half-parabolic velocity profile (i.e., the liquid velocity at the gas-liquid interface is at its maximum) [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Physical absorption has been treated by several authors [15][16][17][18][19].…”

“…Analytical solutions to the problem of gas absorption accompanied by a zero-order chemical reaction with or without gas-phase mass transfer resistance have been suggested by Riazi and co-workers [20,21]. Absorption with a first-order reaction was considered by Stepanek and Achwal [22] for the cases of zero and finite gas-phase mass transfer resistances, however, the analytical solutions obtained for the concentration profile of the dissolved gas in the liquid layer appear to be wrong as suggested later by Best and Horner [23]. The more accurate solutions for these cases were given in the work of Best and Horner [23] and others [24][25][26].…”

Enhancement Factor for Gas Absorption in a Finite Liquid Layer. Part 2: First‐ and Second‐Order Reactions in a Liquid in Plug Flow

“…As a follow-up study of the present work, part 3 of this series will deal with a more realistic situation involving a liquid layer of finite thickness in laminar flow, where the approach developed in the current and previous parts [22] will be extended for developing practical enhancement factor correlations in the case of an instantaneous reaction or a second-order reaction. It is noteworthy that although extensive research efforts have been devoted to the absorption of gas by liquids in laminar flow [15,16,[23][24][25][26][27][28][29][30][31][32][33][34], the above-mentioned enhancement factor expressions are not yet available.…”