A Comparison of Gas Absorption and Rectification

Rate of Absorption of Carbon Dioxide Effect of Concentration and Viscosity of Caustic Solutions

“…The case of gas absorption by a liquid containing a solute which reacts irreversibly, either in one or in two stages, how- ever, presents certain novel aspects for which the Lewis and Whitman theory seems at first glance to be inadequate, as suggested by Payne and Dodge. That such a process is of considerable industrial importance, as exemplified by the absorption of carbon dioxide by alkaline solutions, is evidenced by the papers in recent years devoted to this subject, of which those by Harte, Baker, and Purcell (4), Weber and Nilsson (16), Whitman and Davis (17), and Williamson and Mathews (18) are representative, in addition to the work of Payne and Dodge already mentioned. Dealing with the more purely theoretical aspects of the rate of absorption of carbon dioxide by alkaline solutions, papers by Davis and Crandall (1A), Ledig and Weaver (7), Hatta (5), and Mitsukuri (11) have served to arouse general interest in the fundamental aspects of the problem as well.…”

Gas Absorption in Bubble-Cap Columns

“…Reynolds and Saunders (18) obtained values of EMV from 0.65 to 0.85 for the absorption of ammonia from air in a single-plate absorber fitted with five 3-inch caps. Whitman and Davis (14) obtained plate efficiencies of about 0.07 for the absorption of carbon dioxide by a sodium carbonate lye in a fifteen-plate column having one cap per plate. Brown and Souders reported data on the performance of a high-pressure absorber for natural gasoline from which it is possible to estimate a plate efficiency of about 0.15 for butane.…”

Rate of Absorption of Carbon Dioxide in Water and in Alkaline Media

“…They varied rate of liquid flow, concentration of potassium carbonate and potassium hydroxide, concentration of carbon dioxide in the gas and temperature. Whitman and Davis (21) compared gas absorption and rectification in a bubbler-cap column, using the system carbon dioxide-air-sodium carbonate.…”