Carbon Capture Based on Chemical Absorption: Process Design and Techno-Economic Assessments
Keywords:
NH3, DEA, MEA, Carbon capture, Chemical absorptionAbstract
It is a widely accepted scientific fact that emissions of greenhouse gases, mostly Carbon dioxide (CO2) from fossil fuels, contribute to global warming. However, the world's energy industry continues to rely mostly on fossil fuels, which still provide an 85percent of the world's energy needs. The realization has set in that fossil fuels would remain the main energy source for many years due to the lack of economically viable sources of renewable power and the availability of cheap fuels including coal. Consequently, it is imperative to create technology that allows for the continued use of fossil fuels while reducing the amount of Carbon dioxide released into the environment. To minimize emissions into the atmosphere, CO2 from pollution sources should be captured. The theory behind several methods of CO2 collection will be examined in this study, and their benefits and drawbacks will be considered. After that, a selected separation method will be thoroughly examined by running simulations of the process utilizing the program As-pen Plus with three solvents, including NH3, DEA, and MEA. The effectiveness of the separation process was examined concerning operational circumstances. In contrast with other solvents, DEA stands out because of its increased CO2 removal efficiency and its decreased sensitivity to lean loading.
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