Energy and economic comparison of five mixed-refrigerant natural gas liquefaction processes
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Título: | Energy and economic comparison of five mixed-refrigerant natural gas liquefaction processes |
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Autor/es: | Pereira, Matheus A.M. | Santos, Lucas F. | Caballero, José A. | Ravagnani, Mauro A.S.S. | Costa, Caliane B.B. |
Grupo/s de investigación o GITE: | Computer Optimization of Chemical Engineering Processes and Technologies (CONCEPT) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Química |
Palabras clave: | Natural gas liquefaction processes | Energy efficiency | Economic analysis | Optimization | CAPCOST technique | Simulation-Optimization |
Fecha de publicación: | 29-oct-2022 |
Editor: | Elsevier |
Cita bibliográfica: | Energy Conversion and Management. 2022, 272: 116364. https://doi.org/10.1016/j.enconman.2022.116364 |
Resumen: | The demand for liquified natural gas grows as it is an energy resource that has more flexible means of transport than non-liquefied natural gas, and is more eco-friendly than other fossil fuels. This paper focused on comparing five different mixed-refrigerant liquefaction processes to determine which one is the most efficient in energetic and economic terms for four different natural gas processing scales (20,000 kg/h and 2, 4, and 8 MTPA of natural gas feed). Simpler processes with one or two refrigerant cycles (single mixed refrigerant, propane pre-cooled mixed refrigerant, and dual mixed refrigerant) and more complex processes with three cycles (mixed fluid cascade and AP-X) were analyzed. All processes were simulated in Aspen HYSYS, and the energy consumption was optimized by a communication between the simulator and an optimization algorithm based on Particle Swarm Optimization coded in MATLAB. The economic analysis was performed using the CAPCOST technique and the rule of six-tenths for upscaling. In the best-optimized scenario, the results show that the most complex process, AP-X, consumes the lowest amount of energy (0.2367 kWh/kg-LNG) while the simplest one, the single mixed refrigerant, consumes the highest value (0.2561 kWh/kg-LNG). In the economic analysis, the results indicate that energetically better processes may not provide a higher economic return even on large scales. |
Patrocinador/es: | The authors acknowledge the National Council for Scientific and Technological Development – CNPq (Brazil), processes 117948/2020-9, 307958/2021-3, 200305/2020-4, 148184/2019-7, 311807/2018-6, and 428650/2018-0, and Coordination for the Improvement of Higher Education Personnel – CAPES (Brazil) for the financial support. J.A. Caballero wants to acknowledge the financial support of the ‘Generalitat Valenciana’ under project PROMETEO 064/2020 and the Ministerio de Ciencia e Innovación, under project PID2021-124139NB-C21. |
URI: | http://hdl.handle.net/10045/129080 |
ISSN: | 0196-8904 (Print) | 1879-2227 (Online) |
DOI: | 10.1016/j.enconman.2022.116364 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.enconman.2022.116364 |
Aparece en las colecciones: | INV - CONCEPT - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Pereira_etal_2022_EnergyConversManag_final.pdf | Versión final (acceso restringido) | 2,27 MB | Adobe PDF | Abrir Solicitar una copia |
Pereira_etal_2022_EnergyConversManag_preprint.pdf | Preprint (acceso abierto) | 1,25 MB | Adobe PDF | Abrir Vista previa |
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