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Título : Thermochemical equilibrium model of synthetic natural gas production from coal gasification using aspen plus
Autor : Barrera Zapata, Rolando de Jesús
Salazar, Carlos
Pérez Bayer, Juan Fernando
Palabras clave : Thermochemistry
Chemical equilibrium
Synthetic natural gas
Gas industry
Mathematical models
Coal gasification
Fecha de publicación : 2014
Editorial : Hindawi Limited
Citación : R. de J. Barrera, C. Salazar and J. F. Pérez, "Thermochemical equilibrium model of synthetic natural gas production from coal gasification using aspen plus", International Journal of Chemical Engineering, vol. 2014, p. 1-18, 2014. DOI: 10.1155/2014/192057
Resumen: The production of synthetic or substitute natural gas (SNG) from coal is a process of interest in Colombia where the reserves-to-production ratio (R/P) for natural gas is expected to be between 7 and 10 years, while the R/P for coal is forecasted to be around 90 years. In this work, the process to produce SNG by means of coal-entrained flow gasifiers is modeled under thermochemical equilibrium with the Gibbs free energy approach. The model was developed using a complete and comprehensive Aspen Plus model. Two typical technologies used in entrained flow gasifiers such as coal dry and coal slurry are modeled and simulated. Emphasis is put on interactions between the fuel feeding technology and selected energy output parameters of coal-SNG process, that is, energy efficiencies, power, and SNG quality. It was found that coal rank does not significantly affect energy indicators such as cold gas, process, and global efficiencies. However, feeding technology clearly has an effect on the process due to the gasifying agent. Simulations results are compared against available technical data with good accuracy. Thus, the proposed model is considered as a versatile and useful computational tool to study and optimize the coal to SNG process.
Grupo de INV. : Grupo CERES - Agroindustria y Ingeniería
URI : http://hdl.handle.net/10495/7668
ISSN : 1687806
Aparece en las colecciones: CIA (Centro de Investigaciones Ambientales y de Ingeniería)

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