Experimental investigations and the modeling approach for CO2 solubility in aqueous blended amine systems of monoethanolamine, 2-amino-2-methyl-1-propanol, and 2-(butylamino)ethanol

Recent Progress on CO2 Capture Based on Sterically Hindered Amines: A Review

“…The emission of an inordinate quantity of greenhouse gases into the atmosphere has been recognized as a significant instigator of worldwide climate alteration. − Carbon dioxide (CO 2 ) is one of the most prominent greenhouse gases. − The emission of CO 2 into the atmosphere is a major environmental concern as it has a direct impact on the rising temperatures of the planet. − As per the statistics published by the International Energy Agency, the worldwide CO 2 emissions stemming from energy utilization surged to an all-time high of 36.3 billion tons in 2021, which marks a 6% rise in contrast to the figures for 2020 . Fossil fuel combustion is responsible for more than two-thirds of the world’s net CO 2 emissions for electricity and heat production. − The implementation of carbon capture, utilization, and storage (CCUS) is widely regarded as a pivotal technology in mitigating CO 2 emissions by the year 2050. − As shown in Figure , CCUS involves the capture of CO 2 from sources like power plants and industrial processes, followed by the storage of CO 2 in underground geological formations or the utilization of it for other purposes such as enhanced oil recovery. − According to the location of CO 2 capture, there are precombustion capture, oxygen-rich combustion, and postcombustion capture. − Precombustion capture technology has high equipment investment costs and complex systems; oxygen-enriched combustion technology has high energy consumption in the oxygen production process. Postcombustion capture technology necessitates solely the adjustment of the tail gas treatment system of the power plant, thereby incurring measly modification expenses and exhibiting favorable adaptability to the power plant, rendering it a fitting option for retrofitting extant power plants. − Capturing CO 2 after combustion is seen as an essential measure toward decreasing worldwide emissions of CO 2 generated by the combustion of fossil fuels. − …”