30 - Mass transfer characteristics of CO2 absorption into liquid droplets

Han Jingyi

CO2 capture from exhaust gases has been paid more and more attention in order to avoid global warming. One of the methods for removing CO2 from the flue gas streams is the use of absorption and aqueous alkanolamine solutions as absorbents

Alkanolamines such as monoethanolamine (MEA), diethanolamine (DEA) and N-methyldiethanolamine (MDEA) are widely used in CO2 capture because of their high CO2 absorbing capacity and lower energy consumption. Physical properties such as density and surface tension of the pure compounds of amines, the mixtures with water and CO2 loaded aqueous amine solutions are important for optimal designing of absorption-desorption processes and the related engineering calculations. The absorption of CO2 into aqueous amine solutions by the spray method is a possible process for bulk removal of CO2 from a gaseous stream. A depth understanding of the mass transfer characteristics in the spray column is very important for the optimization design of the column and the selection of absorbent. The study of mass transfer between CO2 and the unit part of a spray - individual droplets is crucial for better understanding the mass transfer characteristics in the spray column.

This doctoral program is conducted as a partnership between Telemark University College and Tel-Tek. The defense was held at Telemark University College 22nd January 2014.

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