Abstract
Carbon capture by cryogenic treatment is one of the emerging methods in curbing carbon dioxide (CO2) emissions, because it not only offers energy-saving, but also environmental benefits due to the absence of chemicals as used by other methods. However, the cryogenic system used for CO2 capture demands a high-effectiveness heat exchanger. In this case, a plate-fin heat exchanger (PFHE) is used. In this study, PFHE is analyzed for decreasing the temperature of CO2 and N-2 mixture with cold N-2 gas. The study consists of three parts that are (i) a comparative study of Aspen EDR with heat exchanger parameter evaluation correlations such as Joshi & Webb, Manglik & Bergles, and Maiti & Sarangi, and (ii) validation of Aspen EDR software with experimental results which is available from open literature. Hence, validation of heat exchanger design is indirectly done with experimental results. (iii) Besides this, the research is aimed at studying the influence of the gas mixture inlet temperature, the concentration of CO2, pressure drop, and the mass flow rate on PFHE's effectiveness. The study results are analyzed and presented in this research article.