Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Enhancing the Performance for Chilled Ammonia Carbon Dioxide Capture by Use of Crystallizerconfiguration: Thermodynamic Assessment

Version 1 : Received: 26 December 2023 / Approved: 28 December 2023 / Online: 28 December 2023 (05:18:33 CET)

How to cite: johnson, N.; justin, A.C.; Azunna, ,.O. Enhancing the Performance for Chilled Ammonia Carbon Dioxide Capture by Use of Crystallizerconfiguration: Thermodynamic Assessment . Preprints 2023, 2023122147. https://doi.org/10.20944/preprints202312.2147.v1 johnson, N.; justin, A.C.; Azunna, ,.O. Enhancing the Performance for Chilled Ammonia Carbon Dioxide Capture by Use of Crystallizerconfiguration: Thermodynamic Assessment . Preprints 2023, 2023122147. https://doi.org/10.20944/preprints202312.2147.v1

Abstract

"Chemical absorption is currently the most advanced technique for capturing carbon dioxide after combustion. A fascinating approach within amine-based technology for post-combustion carbon removal is the utilization of aqueous ammonia as a solvent, leading to a method called chilled ammonia capture. This study aims to enhance the performance of chilled ammonia capture through a thermodynamic assessment, focusing on crystalline configuration.""This study explores the development of an improved second generation chilled ammonia capture process, which involves the formation of solids to enhance capturing efficiency. The simulation software ASPEN is employed to model the expanded UNIQUAC Thermodynamics hypothesis. The modeling encompasses both the conventional carbon ammonia capture process and the more advanced carbon ammonia capture system powered by a crystallizerIn this study, the energy costs associated with implementing different technologies for carbon ammonia capture in typical ultra supercritical power plants are evaluated. The introduction of solid formation in the carbon ammonia capture system has yielded promising results. The findings indicate that the energy required for the carbon ammonia capture system, which utilizes a crystallizer, is approximately 10% lower compared to the overall cost associated with the conventional carbon ammonia capture system. These results highlight the potential for significant energy savings and improved efficiency in carbon capture processes

Keywords

CO2; efficiency;chilled; ammonia; capturing; absorption

Subject

Engineering, Energy and Fuel Technology

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