Ex-situ dissolution of CO2 for carbon sequestration

Abstract

In this paper, a model for diffusion-controlled dissolution of CO2 droplets during co-current (CO2-brine) horizontal turbulent pipe flow is presented. The objective is to evaluate the feasibility of ex-situ dissolution of CO2 before it is injected underground. Potential maximum droplet sizes for CO2 droplets are calculated, and compared with an estimated inner scab of turbulence. A comparison is made between times to dissolve for turbulent and diffusion dissolution,soluti as well as an estimation of required pipe length needed for purely diffusion-based dissolution.