127597 20241125101158.0 doi 10.1016/j.jcou.2023.102534 sideral 134613 ART-2023-134613 eng Shirmohammadi, R. A comparative life cycle assessment for solar integration in CO2 capture utilized in a downstream urea synthesis plant 2023 Access copy available to the general public Unrestricted This study assesses the environmental performance of an existing petrochemical plant that produces urea fertilizer and liquid ammonia. In urea production facilities, ammonia is always in excess. This excess can be converted back to urea if reacted with CO2 in an ammonia reformer. Such a process can boost the production capacity of the plant without the need for further investment in major equipment, like reformers and reactors. In the plant studied here, a CO2 capture and utilization unit (CCU) is used to capture CO2 from the stack of the ammonia plant to further enhance urea production. The unit recovers about 5500 kg of CO2 per hour. The environmental performance of the petrochemical plant is evaluated with and without CO2 capture and under solar-assisted operation. Although the solar-assisted operation performs better than the plant with CCU in many environmental parameters, the differences between the two cases are relatively small. The outcomes of the life cycle assessment show that the carbon footprint of the solar-assisted operation with CCU is about 10% lower than that of the plant without CCU. In addition to some environmental benefits of the CCU plant, the plant with carbon capture increases the urea production by about 8%. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 7.2 2023 CHEMISTRY, MULTIDISCIPLINARY 42 / 231 = 0.182 2023 Q1 T1 ENGINEERING, CHEMICAL 19 / 170 = 0.112 2023 Q1 T1 1.495 2023 Chemical Engineering (miscellaneous) 2023 Q1 Waste Management and Disposal 2023 Q1 Process Chemistry and Technology 2023 Q1 13.9 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Aslani, A. Batuecas, E. Ghasempour, R. Romeo, L.M. Universidad de Zaragoza (orcid)0000-0001-7379-6159 Petrakopoulou, F. 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 74 (2023), 102534 [11 pp.] J. CO2 util. Journal of CO2 Utilization 2212-9820 4550836 http://zaguan.unizar.es/record/127597/files/texto_completo.pdf Versión publicada 2654478 http://zaguan.unizar.es/record/127597/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:127597 articulos driver 2024-11-22-12:10:30 ARTICLE