CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage
Observation of the greenhouse effect prompts the consideration of every possibility of reducing anthropogenic carbon dioxide emissions. One of the key methods that has been the subject of much research is Carbon Dioxide Capture and Storage. The purpose of this study was to investigate the main techn...
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MDPI AG
2023-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/4/1804 |
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| author | Paweł Bielka Szymon Kuczyński Stanisław Nagy |
| author_facet | Paweł Bielka Szymon Kuczyński Stanisław Nagy |
| author_sort | Paweł Bielka |
| collection | DOAJ |
| description | Observation of the greenhouse effect prompts the consideration of every possibility of reducing anthropogenic carbon dioxide emissions. One of the key methods that has been the subject of much research is Carbon Dioxide Capture and Storage. The purpose of this study was to investigate the main technologies of CO<sub>2</sub> capture, separation, and dehydration as well as methods of its transport and methodology of selecting a suitable geological storage site. An installation of dehydration and compression of carbon dioxide captured after the post-combustion was designed at a temperature of 35 °C, a pressure of 1.51 bar, and a mass flow rate of 2.449 million tons/year, assuming that the geological storage site is located at 30 km from the capture place. For the dehydration process, a multistage compression and cooling system were applied, combined with a triethylene glycol (TEG) dehydration unit. The mass flow rate of TEG was selected as 0.5 kg/s. H<sub>2</sub>O out of the TEG unit was 26.6 ppm. The amount of energy required to compress the gas was minimized by adopting a maximum post-compression gas temperature of 95 °C for each cycle, thereby reducing plant operating costs. The total power demand was 7047 kW, 15,990 kW, and 24,471 kW, and the total received heat input was 13,880.76 kW, 31,620.07 kW, and 47,035.66 kW for 25%, 60%, and 100% plant load, respectively. The use of more compressors reduces the gas temperature downstream through successive compression stages. It also decreases the total amount of energy required to power the entire plant and the amount of heat that must be collected during the gas stream cooling process. The integration of CO<sub>2</sub> compression and cooling system to recover heat and increase the efficiency of power units should be considered. |
| first_indexed | 2024-03-11T08:53:02Z |
| format | Article |
| id | doaj.art-98fcd7265dd94d5792ae91dd84950684 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T08:53:02Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-98fcd7265dd94d5792ae91dd849506842023-11-16T20:18:17ZengMDPI AGEnergies1996-10732023-02-01164180410.3390/en16041804CO<sub>2</sub> Compression and Dehydration for Transport and Geological StoragePaweł Bielka0Szymon Kuczyński1Stanisław Nagy2Independent Researcher, 47-330 Zdzieszowice, PolandGas Engineering Department, Drilling, Oil and Gas Faculty, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Kraków, PolandGas Engineering Department, Drilling, Oil and Gas Faculty, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Kraków, PolandObservation of the greenhouse effect prompts the consideration of every possibility of reducing anthropogenic carbon dioxide emissions. One of the key methods that has been the subject of much research is Carbon Dioxide Capture and Storage. The purpose of this study was to investigate the main technologies of CO<sub>2</sub> capture, separation, and dehydration as well as methods of its transport and methodology of selecting a suitable geological storage site. An installation of dehydration and compression of carbon dioxide captured after the post-combustion was designed at a temperature of 35 °C, a pressure of 1.51 bar, and a mass flow rate of 2.449 million tons/year, assuming that the geological storage site is located at 30 km from the capture place. For the dehydration process, a multistage compression and cooling system were applied, combined with a triethylene glycol (TEG) dehydration unit. The mass flow rate of TEG was selected as 0.5 kg/s. H<sub>2</sub>O out of the TEG unit was 26.6 ppm. The amount of energy required to compress the gas was minimized by adopting a maximum post-compression gas temperature of 95 °C for each cycle, thereby reducing plant operating costs. The total power demand was 7047 kW, 15,990 kW, and 24,471 kW, and the total received heat input was 13,880.76 kW, 31,620.07 kW, and 47,035.66 kW for 25%, 60%, and 100% plant load, respectively. The use of more compressors reduces the gas temperature downstream through successive compression stages. It also decreases the total amount of energy required to power the entire plant and the amount of heat that must be collected during the gas stream cooling process. The integration of CO<sub>2</sub> compression and cooling system to recover heat and increase the efficiency of power units should be considered.https://www.mdpi.com/1996-1073/16/4/1804CO<sub>2</sub> compression and dehydrationprocess simulationTEG (triethylene glycol)CCScarbon capture and storage |
| spellingShingle | Paweł Bielka Szymon Kuczyński Stanisław Nagy CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage Energies CO<sub>2</sub> compression and dehydration process simulation TEG (triethylene glycol) CCS carbon capture and storage |
| title | CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage |
| title_full | CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage |
| title_fullStr | CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage |
| title_full_unstemmed | CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage |
| title_short | CO<sub>2</sub> Compression and Dehydration for Transport and Geological Storage |
| title_sort | co sub 2 sub compression and dehydration for transport and geological storage |
| topic | CO<sub>2</sub> compression and dehydration process simulation TEG (triethylene glycol) CCS carbon capture and storage |
| url | https://www.mdpi.com/1996-1073/16/4/1804 |
| work_keys_str_mv | AT pawełbielka cosub2subcompressionanddehydrationfortransportandgeologicalstorage AT szymonkuczynski cosub2subcompressionanddehydrationfortransportandgeologicalstorage AT stanisławnagy cosub2subcompressionanddehydrationfortransportandgeologicalstorage |