Bany Ata, Ammar Ahmad Jamil (2022)
Performance Investigation of Integrated Gasification Combined Cycle Power Plant for Polygeneration.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00020669
Dissertation, Erstveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Energy and environment are playing an important role in shaping the world at present and the path ahead into the future. Both affect the aspects of the economy, politics, health, and welfare. In addition, the growth of wind and photovoltaic plants has greatly increased the demand for flexible generation or storage options in the electricity market due to their fluctuation. The Integrated Gasification Combined Cycle (IGCC) with carbon capture for polygeneration of power and chemicals features the advantages of flexible power generation that has low CO₂ emissions, alongside essential chemicals for the industry or even production of fuels that for storage and then to be utilized during the peak time. Moreover, the ability to use biomass and Refuse Derived Fuel (RDF) as feedstock for IGCC contributes to waste management and better use of the resources. In the scope of this work, a process simulation model of an IGCC using Aspen Plus was developed based on a pilot-scale 0.5 MWth HTW gasifier and gas purification plant installed at TU Darmstadt. The gasification and purification pilot plant model was scaled up and then integrated with a CCPP for power generation. For the power generation part, a process simulation model of Combined Cycle Power Plant (CCPP) was built based on a 360 MWel General Electric (GE) STAG 109FA CCPP located at Prai in Malaysia. For chemical production, a methanol synthesis unit was also modeled and integrated with the IGCC model to enable polygeneration of electricity and methanol in an IGCC plant. To improve the performance of the IGCC, heat integration between the heat recovery steam generator (HRSG) and the syngas production process (gasification and purification) was applied. Additionally, an acid gas removal (AGR) process was adopted for the IGCC model. In this respect, three process simulation models for AGR were developed using three different solvents (Selexol, Rectisol, and a-MDEA) and then evaluated seeking a better performance of the IGCC. Furthermore, co-gasification of coal and refuse derived fuel in different mixing ratios were used and investigated. The evaluation of the developed IGCC power plant model for flexible polygeneration using HTW gasification technology shows a promising electrical efficiency of about 37.48% with a carbon capture rate of 90%. Also, the comparison between the three AGR processes shows that the Selexol process is the most efficient. Therefore, this process was used in the final configuration of the IGCC plant. Finally, a thermo-economic evaluation under volatile selling prices of IGCC products was executed to investigate the production regime and to make better decisions for production.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2022 | ||||
Autor(en): | Bany Ata, Ammar Ahmad Jamil | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Performance Investigation of Integrated Gasification Combined Cycle Power Plant for Polygeneration | ||||
Sprache: | Englisch | ||||
Referenten: | Epple, Prof. Dr. Bernd ; Richter, Prof. Dr. Andreas | ||||
Publikationsjahr: | 2022 | ||||
Ort: | Darmstadt | ||||
Kollation: | xxii, 128 Seiten | ||||
Datum der mündlichen Prüfung: | 1 Februar 2022 | ||||
DOI: | 10.26083/tuprints-00020669 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20669 | ||||
Kurzbeschreibung (Abstract): | Energy and environment are playing an important role in shaping the world at present and the path ahead into the future. Both affect the aspects of the economy, politics, health, and welfare. In addition, the growth of wind and photovoltaic plants has greatly increased the demand for flexible generation or storage options in the electricity market due to their fluctuation. The Integrated Gasification Combined Cycle (IGCC) with carbon capture for polygeneration of power and chemicals features the advantages of flexible power generation that has low CO₂ emissions, alongside essential chemicals for the industry or even production of fuels that for storage and then to be utilized during the peak time. Moreover, the ability to use biomass and Refuse Derived Fuel (RDF) as feedstock for IGCC contributes to waste management and better use of the resources. In the scope of this work, a process simulation model of an IGCC using Aspen Plus was developed based on a pilot-scale 0.5 MWth HTW gasifier and gas purification plant installed at TU Darmstadt. The gasification and purification pilot plant model was scaled up and then integrated with a CCPP for power generation. For the power generation part, a process simulation model of Combined Cycle Power Plant (CCPP) was built based on a 360 MWel General Electric (GE) STAG 109FA CCPP located at Prai in Malaysia. For chemical production, a methanol synthesis unit was also modeled and integrated with the IGCC model to enable polygeneration of electricity and methanol in an IGCC plant. To improve the performance of the IGCC, heat integration between the heat recovery steam generator (HRSG) and the syngas production process (gasification and purification) was applied. Additionally, an acid gas removal (AGR) process was adopted for the IGCC model. In this respect, three process simulation models for AGR were developed using three different solvents (Selexol, Rectisol, and a-MDEA) and then evaluated seeking a better performance of the IGCC. Furthermore, co-gasification of coal and refuse derived fuel in different mixing ratios were used and investigated. The evaluation of the developed IGCC power plant model for flexible polygeneration using HTW gasification technology shows a promising electrical efficiency of about 37.48% with a carbon capture rate of 90%. Also, the comparison between the three AGR processes shows that the Selexol process is the most efficient. Therefore, this process was used in the final configuration of the IGCC plant. Finally, a thermo-economic evaluation under volatile selling prices of IGCC products was executed to investigate the production regime and to make better decisions for production. |
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Status: | Verlagsversion | ||||
URN: | urn:nbn:de:tuda-tuprints-206699 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau | ||||
Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Energiesysteme und Energietechnik (EST) |
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Hinterlegungsdatum: | 23 Feb 2022 13:15 | ||||
Letzte Änderung: | 24 Feb 2022 07:02 | ||||
PPN: | |||||
Referenten: | Epple, Prof. Dr. Bernd ; Richter, Prof. Dr. Andreas | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 1 Februar 2022 | ||||
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