Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping
In the current context of complexity between climate change, environmental sustainability, resource scarcity, and geopolitical aspects of energy resources, a polygenerative system with a circular approach is considered to generate energy (thermal, electrical, and fuel), contributing to the control o...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/1/315 |
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| author | Greta Magnolia Massimo Santarelli Domenico Ferrero Davide Papurello |
| author_facet | Greta Magnolia Massimo Santarelli Domenico Ferrero Davide Papurello |
| author_sort | Greta Magnolia |
| collection | DOAJ |
| description | In the current context of complexity between climate change, environmental sustainability, resource scarcity, and geopolitical aspects of energy resources, a polygenerative system with a circular approach is considered to generate energy (thermal, electrical, and fuel), contributing to the control of CO<sub>2</sub> emissions. A plant for the multiple productions of electrical energy, thermal heat, DME, syngas, and methanol is discussed and analyzed, integrating a chemical cycle for CO<sub>2</sub>/H<sub>2</sub>O splitting driven using concentrated solar energy and biomethane. Two-stage chemical looping is the central part of the plant, operating with the CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> redox couple and operating at 1.2 bar and 900 °C. The system is coupled to biomethane reforming. The chemical loop generates fuel for the plant’s secondary units: a DME synthesis and distillation unit and a solid oxide fuel cell (SOFC). The DME synthesis and distillation unit are integrated with a biomethane reforming reactor powered by concentrated solar energy to produce syngas at 800 °C. The technical feasibility in terms of performance is presented in this paper, both with and without solar irradiation, with the following results, respectively: overall efficiencies of 62.56% and 59.08%, electricity production of 6.17 MWe and 28.96 MWe, and heat production of 111.97 MWt and 35.82 MWt. The fuel production, which occurs only at high irradiance, is 0.71 kg/s methanol, 6.18 kg/s DME, and 19.68 kg/s for the syngas. The increase in plant productivity is studied by decoupling the operation of the chemical looping with a biomethane reformer from intermittent solar energy using the heat from the SOFC unit. |
| first_indexed | 2024-03-11T09:55:12Z |
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| id | doaj.art-91b54217c1dd452580afbe1a29c0c3bf |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T09:55:12Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-91b54217c1dd452580afbe1a29c0c3bf2023-11-16T15:49:59ZengMDPI AGMaterials1996-19442022-12-0116131510.3390/ma16010315Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical LoopingGreta Magnolia0Massimo Santarelli1Domenico Ferrero2Davide Papurello3Department of Energy (DENERG), Politecnico di Torino, Corso Duca Degli Abruzzi, 24, 10129 Turin, ItalyDepartment of Energy (DENERG), Politecnico di Torino, Corso Duca Degli Abruzzi, 24, 10129 Turin, ItalyDepartment of Energy (DENERG), Politecnico di Torino, Corso Duca Degli Abruzzi, 24, 10129 Turin, ItalyDepartment of Energy (DENERG), Politecnico di Torino, Corso Duca Degli Abruzzi, 24, 10129 Turin, ItalyIn the current context of complexity between climate change, environmental sustainability, resource scarcity, and geopolitical aspects of energy resources, a polygenerative system with a circular approach is considered to generate energy (thermal, electrical, and fuel), contributing to the control of CO<sub>2</sub> emissions. A plant for the multiple productions of electrical energy, thermal heat, DME, syngas, and methanol is discussed and analyzed, integrating a chemical cycle for CO<sub>2</sub>/H<sub>2</sub>O splitting driven using concentrated solar energy and biomethane. Two-stage chemical looping is the central part of the plant, operating with the CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> redox couple and operating at 1.2 bar and 900 °C. The system is coupled to biomethane reforming. The chemical loop generates fuel for the plant’s secondary units: a DME synthesis and distillation unit and a solid oxide fuel cell (SOFC). The DME synthesis and distillation unit are integrated with a biomethane reforming reactor powered by concentrated solar energy to produce syngas at 800 °C. The technical feasibility in terms of performance is presented in this paper, both with and without solar irradiation, with the following results, respectively: overall efficiencies of 62.56% and 59.08%, electricity production of 6.17 MWe and 28.96 MWe, and heat production of 111.97 MWt and 35.82 MWt. The fuel production, which occurs only at high irradiance, is 0.71 kg/s methanol, 6.18 kg/s DME, and 19.68 kg/s for the syngas. The increase in plant productivity is studied by decoupling the operation of the chemical looping with a biomethane reformer from intermittent solar energy using the heat from the SOFC unit.https://www.mdpi.com/1996-1944/16/1/315chemical loopingpolygenerative systemceria oxidesbiological methaneSOFCCS |
| spellingShingle | Greta Magnolia Massimo Santarelli Domenico Ferrero Davide Papurello Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping Materials chemical looping polygenerative system ceria oxides biological methane SOFC CS |
| title | Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping |
| title_full | Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping |
| title_fullStr | Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping |
| title_full_unstemmed | Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping |
| title_short | Modeling Analysis of a Polygeneration Plant Using a CeO<sub>2</sub>/Ce<sub>2</sub>O<sub>3</sub> Chemical Looping |
| title_sort | modeling analysis of a polygeneration plant using a ceo sub 2 sub ce sub 2 sub o sub 3 sub chemical looping |
| topic | chemical looping polygenerative system ceria oxides biological methane SOFC CS |
| url | https://www.mdpi.com/1996-1944/16/1/315 |
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