Brazilian Journal of Chemical Engineering
versão impressa ISSN 0104-6632
MARTINEZ, I. e CASAS, P. A.. Simple model for CO2 absorption in a bubbling water column. Braz. J. Chem. Eng. [online]. 2012, vol.29, n.1, pp.107-111. ISSN 0104-6632. http://dx.doi.org/10.1590/S0104-66322012000100012.
A simple analytical model is presented for the time-evolution of dissolved CO2 concentration in a batch water column. The application in mind is the removal of the CO2 produced by the propulsion plant of a submarine cruising underwater. The model is based on a constant number of constant size CO2 bubbles within the water column, with uniform gas injection through a porous membrane at the bottom, and bubbles flowing upwards by their own buoyancy through a short water column (the exhaust gas is recirculated). Analytical results are validated with experimental data found in the literature and the advantages of this simple analytical model pinpointed.
Palavras-chave : Carbon dioxide water solutions; CO2 absorption; Bubble column; Dissolution; Batch; Absorption.