Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system
This study presents a comprehensive three-dimensional full loop simulation on a novel in situ gasification chemical looping combustion (iG-CLC) system. This iG-CLC model mainly consists of a high-flux circulating fluidized bed fuel reactor, a counter-flow moving bed air reactor, an inertial separato...
| Main Authors: | , , , , , |
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| Format: | Article |
| Published: |
American Chemical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/48210/ |
| _version_ | 1848797715048169472 |
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| author | Shao, Yali Zhang, Yong Wang, Xiaojia Wang, Xudong Jin, Baosheng Liu, Hao |
| author_facet | Shao, Yali Zhang, Yong Wang, Xiaojia Wang, Xudong Jin, Baosheng Liu, Hao |
| author_sort | Shao, Yali |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This study presents a comprehensive three-dimensional full loop simulation on a novel in situ gasification chemical looping combustion (iG-CLC) system. This iG-CLC model mainly consists of a high-flux circulating fluidized bed fuel reactor, a counter-flow moving bed air reactor, an inertial separator, a J-valve, and a downcomer. The Eulerian–Eulerian two-fluid model incorporated with the standard k–ε turbulence model for the gas phase and the kinetic theory of granular flow for the solid phase was applied to model the gas–solid flow dynamics characteristics in the whole system. The quasi-stable solid circulation in the whole system could be realized after about 20 s of the computational time with the Gidaspow drag model and the specularity coefficient of 0.5, in which the fuel reactor and air reactor achieved intense turbulence flow and steady near plug flow, respectively. However, when the AR inlet gas flow exceeded a critical value, the stable flow state in the AR would be destroyed due to the appearance of bubbles. Further, a two-stage AR was proposed and coupled into the original system, which successfully improved the AR carrying capacity of gas flow. |
| first_indexed | 2025-11-14T20:08:17Z |
| format | Article |
| id | nottingham-48210 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:08:17Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-482102020-05-04T19:15:55Z https://eprints.nottingham.ac.uk/48210/ Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system Shao, Yali Zhang, Yong Wang, Xiaojia Wang, Xudong Jin, Baosheng Liu, Hao This study presents a comprehensive three-dimensional full loop simulation on a novel in situ gasification chemical looping combustion (iG-CLC) system. This iG-CLC model mainly consists of a high-flux circulating fluidized bed fuel reactor, a counter-flow moving bed air reactor, an inertial separator, a J-valve, and a downcomer. The Eulerian–Eulerian two-fluid model incorporated with the standard k–ε turbulence model for the gas phase and the kinetic theory of granular flow for the solid phase was applied to model the gas–solid flow dynamics characteristics in the whole system. The quasi-stable solid circulation in the whole system could be realized after about 20 s of the computational time with the Gidaspow drag model and the specularity coefficient of 0.5, in which the fuel reactor and air reactor achieved intense turbulence flow and steady near plug flow, respectively. However, when the AR inlet gas flow exceeded a critical value, the stable flow state in the AR would be destroyed due to the appearance of bubbles. Further, a two-stage AR was proposed and coupled into the original system, which successfully improved the AR carrying capacity of gas flow. American Chemical Society 2017-11-01 Article PeerReviewed Shao, Yali, Zhang, Yong, Wang, Xiaojia, Wang, Xudong, Jin, Baosheng and Liu, Hao (2017) Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system. Energy and Fuels . ISSN 1520-5029 Chemical looping combustion; CO2 capture; Numerical simulation; Full loop; Two-stage air reactor http://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.7b02119 doi:10.1021/acs.energyfuels.7b02119 doi:10.1021/acs.energyfuels.7b02119 |
| spellingShingle | Chemical looping combustion; CO2 capture; Numerical simulation; Full loop; Two-stage air reactor Shao, Yali Zhang, Yong Wang, Xiaojia Wang, Xudong Jin, Baosheng Liu, Hao Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| title | Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| title_full | Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| title_fullStr | Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| title_full_unstemmed | Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| title_short | Three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| title_sort | three-dimensional full loop modeling and optimization of an in situ gasification chemical looping combustion system |
| topic | Chemical looping combustion; CO2 capture; Numerical simulation; Full loop; Two-stage air reactor |
| url | https://eprints.nottingham.ac.uk/48210/ https://eprints.nottingham.ac.uk/48210/ https://eprints.nottingham.ac.uk/48210/ |