Evaluación de una planta de gasificación integrada a un ciclo de descarbonatación de caliza para la producción simultánea de CO2, energía eléctrica, energía térmica y otros productos de alto valor agregado
IIn this research, an evaluation of the gas production capacity with direct application for enhanced oil recovery (EOR) from CO2 capture and generation technologies is carried out. Four power plants based on coal gasification, combustion and oxy-fuel combustion integrated with post-combustion and pr...
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| Tipo de documento: | dissertação |
| Estado: | Versión aceptada para publicación |
| Data de publicação: | 2019 |
| País: | Colombia |
| Recursos: | Universidad Nacional de Colombia |
| Repositório: | Repositorio UN |
| Idioma: | espanhol |
| OAI Identifier: | oai:repositorio.unal.edu.co:unal/75769 |
| Acesso em linha: | https://repositorio.unal.edu.co/handle/unal/75769 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Ingeniería química Captura de CO2 Recobro mejorado de petróleo Caliza CO2 capture Enhanced oil recovery Limestone |
| Resumo: | IIn this research, an evaluation of the gas production capacity with direct application for enhanced oil recovery (EOR) from CO2 capture and generation technologies is carried out. Four power plants based on coal gasification, combustion and oxy-fuel combustion integrated with post-combustion and pre-combustion CO2 capture methods are compared, through a thermodynamic evaluation. An integrated gasification combined cycle plant integrated with a Calcium Looping Process (CaL) is evaluated for the generation of electric power, CO2 and CaO as a clinker precursor. In this way, is used a two-phase model for the coal gasification in a bubbling fluidized bed and a particle model is proposed to simulate the operating conditions that govern the chemical reaction and phenomena of sintering and overlapping of grains in CaL. According to the results, it is possible to conclude that a CO2 capture system decreases the energy and exergy efficiency of the plant, since additional energy consumption is required for the regeneration of the sorbent and for the CO2 capture up to 90%. However, in CaL it is possible to carry out an energy integration to improve the overall performance of the plant and the exergoeconomic cost of the products of interest, especially CO2 (31 COP/kg). For its part, the particle model studied in the CaL process allows predict the material durability and its reuse during several cycles of CO2 capture. |
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