| 초록 |
Carbon dioxide was absorbed into aqueous polyacrylamide(PAA) solution in a flat-stirred vessel to get the volumetric mass transfer coefficient(kLa) of CO2. The effect of viscosity, viscoelasticity, and speed and size of impeller on the gas-liquid mass transfer have been investigated. The elastic properties, considered in the form of the Deborah number, were found to decrease the volumetric mass transfer coefficient. On the basis of experimental data of kLa, a dimensionless empirical equation for kLa was proposed using the Deborah number.
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