Design and Modeling of CO2 Absorption Column for Carbon Sequestration

Carbon dioxide (CO2) mitigation technologies are emerging faster due to the impact of global warming. The study aimed to sequestrate CO2 from a thermochemical conversion process of biomass by absorption in a specially designed parallel plate column. The absorption column was designed in Gambit software, while simulations were performed in Fluent software. Simulations were analyzed for different liquid hold-up volumes with variable liquid flow rates at a constant mass transfer area and gas flow rate. The absorption of CO2 in water was increased with decreasing plate spacing in the column. It was also discovered that liquid and gas flow rates greatly influenced efficiency. The simulations primarily focused on optimizing the liquid flow rate and plate spacing for maximal CO2 recovery with the least energy and water requirement.