Modelling of CO<sub>2</sub> Removal and Capturing Process Using Different Solvents for Al-Halfaya Oil Field to Reduce the Total Emissions

Abstract

Since there currently are no financially feasible sources of renewable electricity and since they are readily available and inexpensive, such as coal, fossil fuels; that will remain the primary energy source for decades. Consequently, it is imperative to create technologies that allow for the continued use of fossil fuels whilst reducing the amount of CO<sub>2</sub> released into the environment. In order to lower atmospheric emissions, CO<sub>2</sub> should be captured from sources of emissions. Increased oil recovery, ocean or subsurface storage, or perhaps both, might be accomplished using the recovered CO<sub>2</sub>. Extracting high-purity CO<sub>2</sub> from flue gas, which is present in low concentrations (about 15 percent), is the most difficult step in the CO<sub>2</sub> capture process. The process of a selected separation approach will then be thoroughly examined by modeling it utilizing the Aspen Plus program while employing three solvents, including MEA, DEA, and NH3. Additionally, based on the simulation results provided by Aspen Plus, the present research intends to assess the environmental and economic implications of every solvent in order to choose the solvent with the minimum environmental impact and the best economic performance. Also, look at how the final CO<sub>2</sub> removal efficacy is affected by the pressure and temperature of the chosen solvents and absorber. According to the findings, DEA solvent outperformed NH3 and MEA in terms of CO<sub>2</sub> extraction effectiveness. Additionally, employing NH3 as a chemical solvent does not affect temperature or pressure, but using MEA and DEA negatively influences CO<sub>2</sub> extraction efficiency when the temperature is raised. However, when utilizing DEA and MEA as chemical solvents, the pressure of the solvent enhances the rate of CO<sub>2</sub> collecting.