Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus
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 p...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/192057 |
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| author | Rolando Barrera Carlos Salazar Juan F. Pérez |
| author_facet | Rolando Barrera Carlos Salazar Juan F. Pérez |
| author_sort | Rolando Barrera |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-097dd23c12a343b9b861b0fefe082545 |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-097dd23c12a343b9b861b0fefe0825452025-02-03T06:46:23ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782014-01-01201410.1155/2014/192057192057Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen PlusRolando Barrera0Carlos Salazar1Juan F. Pérez2Grupo CERES, Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia (UdeA), Calle 70 No. 52-21, Medellín, ColombiaCelsia S.A. ESP, Sede zona Franca Celsia, vía 40 No. 85-555, Barranquilla, ColombiaGrupo de Manejo Eficiente de la Energía (Gimel), Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Antioquia (UdeA), Calle 70 No. 52-21, Medellín, ColombiaThe 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.http://dx.doi.org/10.1155/2014/192057 |
| spellingShingle | Rolando Barrera Carlos Salazar Juan F. Pérez Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus International Journal of Chemical Engineering |
| title | Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus |
| title_full | Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus |
| title_fullStr | Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus |
| title_full_unstemmed | Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus |
| title_short | Thermochemical Equilibrium Model of Synthetic Natural Gas Production from Coal Gasification Using Aspen Plus |
| title_sort | thermochemical equilibrium model of synthetic natural gas production from coal gasification using aspen plus |
| url | http://dx.doi.org/10.1155/2014/192057 |
| work_keys_str_mv | AT rolandobarrera thermochemicalequilibriummodelofsyntheticnaturalgasproductionfromcoalgasificationusingaspenplus AT carlossalazar thermochemicalequilibriummodelofsyntheticnaturalgasproductionfromcoalgasificationusingaspenplus AT juanfperez thermochemicalequilibriummodelofsyntheticnaturalgasproductionfromcoalgasificationusingaspenplus |