Analysing Industrial Scale-Up of Carbon Dioxide Capture in Aqueous Amino Acids for Sustainable Technologies

Recent statistics and trends indicate that fossil fuels are the leading cause of carbon dioxide emissions. As a multi-stage supply chain model with a well-organized report on capturing, utilizing, converting, and storing carbon dioxide, CCUS (Carbon Capture, Utilisation, and Storage) is critically assessed. In this paper, we describe using the amino acid in aqueous form as a green, environmentally friendly method of CO2 capture at ambient temperature (298.15 K) and pressure of around 1.5 Mpa. We studied the process of CO2 capture in a high-pressure triple injection setup equipped with a data acquisition system to monitor and record input values in real-time. Each experiment was done thrice to determine the saturation (estimate carbon dioxide uptake capacity) and the feasibility of designing a continuous process with minimum percentage error. The experimentation was done in an optimized concentration of amino acids with water in a 100 ml reactor and was also projected for industrial scale-up in a 100 L reactor. To interpret the impact of mass transfer on CO2 uptake, a common surfactant, sodium dodecyl sulfate (SDS) and water, was utilized, and the results were reported. The capacity of such amino acids is majorly analyzed concerning comparative analysis with other amino acids, amines, amides, etc., for carbon capture.