Experimental and integrated computational study on CCUS technology utilizing desalinated brine.

Abstract

Abstract In response to the pressing need to combat global climate change, carbon capture, utilization, and storage (CCUS) technology has gained prominence in environmental remediation. This study leverages the practicality of CCUS to develop a wet absorption process and mineral carbonation utilizing seawater-based industrial wastewater. The experiments involved the utilization of seawater and the simulation of actual flue gas conditions. The optimal conditions for NaOH production, ion separation, CO2 absorption, and mineral carbonation are determined by analyzing parameters, including flow rates, concentrations, and pH levels. The experimental results are complemented by computational studies using an Aspen Plus, which elucidates the process kinetics and predict the performance of the absorption process at the pilot-plant scale. The economic feasibility of the commercial-scale implementation of the seawater-based CO2 utilization process is also evaluated considering both the potential environmental and economic benefits. This study provided valuable insights into a sustainable and economically viable approach for CO2 utilization and NaOH production from seawater.