A New Model for the Simulation of CO₂ Absorption in an Industrial-Scale Packed Column

Abstract:

A new computational mass transfer model is proposed for simulating the chemical absorption process with heat effect by solving the average fluctuating mass flux in turbulent mass conservation equation and the average fluctuating heat flux in turbulent heat conservation equation, so that the concentration profile and the temperature profile of column can be obtained. The feather of the proposed model is to abandon the conventional way of introducing the unknown turbulent mass transfer diffusivity D_t and the turbulent thermal diffusivity α_t in the mass and heat conservation equations. By using the proposed model, the simulated results of CO₂ absorption by aqueous monoethanolamine (MEA) solution in an industrial scale column is presented, including MEA concentration, CO₂ loading and liquid phase temperature. The simulations are in agreement with the published experiment data.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 2208-2216
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.2208
• Online since: July 2012
• Authors: Wen Bin Li, Guo Cong Yu, Bo Tan Liu, Xi Gang Yuan
• Keywords: Absorption Simulation, Fluctuating Mass Flux, Mass Transfer, Packed Column

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