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| Titel: |
PHYSICAL ABSORPTION OF CARBON DIOXIDE IN WATER FLOWING IN AN INCLINED CELL |
| Auteur: |
Thomas, W. J. Ray, M. S. Palmer, E. W. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 2 (1976) nr. 3 pagina's 121-134 |
| Jaar: |
1976 |
| Inhoud: |
Studies of the mass transfer mechanisms which occur when CO2 is absorbed into flowing water films in an inclined cell are described. The amount of gas absorbed is small and therefore a highly sensitive optical apparatus was used to obtain direct concentration readings. Gas bulk concentrations in the liquid were obtained by titration. The experimental work was mainly confined to angles of inclination less than 5°. Hydrodynamic studies showing increased flow rates at the sides of the inclined cell, due to meniscus effects, are presented. Hydrodynamic “end effects” at the liquid exit from the cell, which cause increases in the absorption, have been successfully minimised by the design of the apparatus and the experimental technique employed. It is demonstrated, for angles of inclination less than 3°, that convective disturbances (in the form of micioflows, eddies or perturbations) are present in the liquid. These perturbations are not visible or directly determinable. They produce an increased solute transport from the liquid surface over that which can occur by molecular diffusion alone. Beyond 3° inclination the disturbances or perturbations persist and are reinforced by hydrodynamic instabilities eventually leading to observable wave formation. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 6 gevonden artikelen
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