TY - JOUR
T1 - The effect of the gas side resistance on absorption with chemical reaction from binary mixtures
AU - Tamir, A.
AU - Taitel, Y.
N1 - Funding Information:
Acknowledgement-Twhoirsk was performedw hile the first authors penth is sabbaticayle ari n theD epartmenoft Chemical Engineerinagt theU niversityo f CambridgTeh. es abbaticyael ar was supportedb y the Lord Marks Fund which is greatly acknowledgeTdh.a nkas rea lsod uet oP rofessoPr . V. Danckwerts for thei nteresint t hisw orka ndh isc ollaboratioann, da lsot oM r. P. D. Virkarf or his veryk indh elpa ndu sefulr emarks.
PY - 1975
Y1 - 1975
N2 - A predictive model based solely on the conservation equations of both phases is presented for the study of the effect of the gas-side resistance in multicomponent absorption with chemical reaction in a laminar liquid film. The model is applicable for short exposure times to a variety of flow patterns, e.g. a cylindrical jet, a wetted-wall column, or an inclined plane. The model may be applied to the wetted-wall column and the inclined plane for any contact time. The numerical scheme for the downstream solution has the advantage of utilising a similarity solution as its starting point. The model is applied to the system CS2N2 where CS2 is absorbed in an aqueous solution of amine and undergoes pseudo first order reaction. It was found that the a priori neglect of the gas-side resistance is not justified. The error introduced in evaluating the absorption flux by neglecting the gas-side resistance is dependent on the reaction rate constant, bulk concentration of the species, length of the absorber and the total pressure. Errors generally increased with increasing values of the above parameters. The gas-side resistance is reduced when the gaseous atmosphere is under forced convection.
AB - A predictive model based solely on the conservation equations of both phases is presented for the study of the effect of the gas-side resistance in multicomponent absorption with chemical reaction in a laminar liquid film. The model is applicable for short exposure times to a variety of flow patterns, e.g. a cylindrical jet, a wetted-wall column, or an inclined plane. The model may be applied to the wetted-wall column and the inclined plane for any contact time. The numerical scheme for the downstream solution has the advantage of utilising a similarity solution as its starting point. The model is applied to the system CS2N2 where CS2 is absorbed in an aqueous solution of amine and undergoes pseudo first order reaction. It was found that the a priori neglect of the gas-side resistance is not justified. The error introduced in evaluating the absorption flux by neglecting the gas-side resistance is dependent on the reaction rate constant, bulk concentration of the species, length of the absorber and the total pressure. Errors generally increased with increasing values of the above parameters. The gas-side resistance is reduced when the gaseous atmosphere is under forced convection.
UR - http://www.scopus.com/inward/record.url?scp=0016596058&partnerID=8YFLogxK
U2 - 10.1016/0009-2509(75)85025-1
DO - 10.1016/0009-2509(75)85025-1
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AN - SCOPUS:0016596058
SN - 0009-2509
VL - 30
SP - 1477
EP - 1482
JO - Chemical Engineering Science
JF - Chemical Engineering Science
IS - 12
ER -