MODELLING OF PACKED COLUMN FOR CO2 ABSORPTION IN ALKANOLAMINES AT HIGH-PRESSURE AND HIGH-CO2 LOADING CONDITIONS

• Main Author: SHAHID, MUHAMMAD ZUBAIR
• Format: Thesis
• Language: English
• Published: 2021
• Subjects: TP Chemical technology
• Online Access: http://utpedia.utp.edu.my/id/eprint/20710/1/Muhammad%20Zubair%20Shahid_G03627.pdf; http://utpedia.utp.edu.my/id/eprint/20710/

The interest of treating natural gas at high pressure and high carbon dioxide (CO2) concentrations has been increasing to exploit CO2 rich natural gas reserves. Chemical absorption using alkanolamines in a packed column has been regarded as the most established CO2 capture technique. In modelling this system, the Pandya’s rate-based model is the most widely implemented approach to simulate the CO2 absorption process using alkanolamine solutions. However, the studies are limited to the conditions of low pressure (≈ 1 atm) and low CO2 loadings (e.g. < 0.5molCO2/molMEA). At the conditions of high pressure and high CO2 loadings, the real CO2 absorption phenomena is more complex which has not been reflected by the model. Nevertheless, a few of the modelling studies had tried to extend the model using correction factors derived from the experimental data.