Optimization of configurations for amine based CO2 absorption using Aspen HYSYS

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Abstract

The drawback with an absorption based CO2 capture process is the large heat consumption needed for desorption. Different absorption and desorption configurations for 85 % amine based CO2 removal from a natural gas based power plant have been simulated using Aspen HYSYS. A standard process, split-stream, vapour recompression and different combinations thereof have been simulated. The simulations have been used as a basis for equipment dimensioning, cost estimation and process optimization. Of the evaluated cases, a simple vapour recompression case has been calculated to be the most cost optimum configuration. © 2013 Published Elsevier Ltd.

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Øi, L. E., Brathen, T., Berg, C., Brekne, S. K., Flatin, M., Johnsen, R., … Thomassen, E. (2014). Optimization of configurations for amine based CO2 absorption using Aspen HYSYS. In Energy Procedia (Vol. 51, pp. 224–233). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2014.07.026

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