Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief
bjective Carbon capture, utilization and storage (CCUS) is essential for achieving carbon neutrality, in which the safety and efficiency of CO2 transmission plays a vital role. The pipeline transmission of CO2 in the supercritical phase has been widely applied internationally and China has basically...
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Editorial Office of Oil & Gas Storage and Transportation
2024-05-01
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| Series: | You-qi chuyun |
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| Online Access: | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2024.05.009 |
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| author | Bing YAN Bohui SHI Junwen CHEN Xiaoyong TANG Linfeng ZAN Yanjing WANG Yupei LI Jing GONG |
| author_facet | Bing YAN Bohui SHI Junwen CHEN Xiaoyong TANG Linfeng ZAN Yanjing WANG Yupei LI Jing GONG |
| author_sort | Bing YAN |
| collection | DOAJ |
| description | bjective Carbon capture, utilization and storage (CCUS) is essential for achieving carbon neutrality, in which the safety and efficiency of CO2 transmission plays a vital role. The pipeline transmission of CO2 in the supercritical phase has been widely applied internationally and China has basically mastered the rules to the process of supercritical CO2 pipelines steady-state transmission. However, further research is required to enhance understanding of the dynamic rules and safety risks associated with venting operations for supercritical CO2 pipelines with topographic relief. Methods Using OLGA, a physical model was developed for venting valve chambers at both ends of supercritical CO2 pipelines with topographic relief. A dynamic simulation analysis of pipeline venting was conducted, revealing the physical nature of the low-temperature phenomenon in the main pipeline during venting. Key issues in the venting process of the supercritical CO2 pipeline with topographic relief were discussed, focusing on the effects of topographic relief on phase transition, low-temperature risks, and dry ice formation. Finally, a safe venting scheme for backpressure control was suggested. Results The venting of supercritical CO2 pipelines with topographic relief should avoid high pressure and low temperatures as much as possible; appropriate venting pipe diameter and opening need to be designed to prevent risks such as low-temperature brittle fracture and dry ice formation; the suggested venting scheme was effective under specific terrain conditions, addressing extremely low temperatures in low-lying sections during main pipeline venting while minimizing harm at the venting outlet. Conclusion The research results offer theoretical backing for the safe venting process design and engineering construction of supercritical CO2 pipelines with topographic relief, holding practical value for engineering applications and contributing to ensuring the safe and efficient transmission of CO2 pipelines. |
| format | Article |
| id | doaj-art-3354c2040b174e12b3d6435e0b08caae |
| institution | OA Journals |
| issn | 1000-8241 |
| language | zho |
| publishDate | 2024-05-01 |
| publisher | Editorial Office of Oil & Gas Storage and Transportation |
| record_format | Article |
| series | You-qi chuyun |
| spelling | doaj-art-3354c2040b174e12b3d6435e0b08caae2025-08-20T02:28:28ZzhoEditorial Office of Oil & Gas Storage and TransportationYou-qi chuyun1000-82412024-05-0143556156910.6047/j.issn.1000-8241.2024.05.009yqcy-43-5-561Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic reliefBing YAN0Bohui SHI1Junwen CHEN2Xiaoyong TANG3Linfeng ZAN4Yanjing WANG5Yupei LI6Jing GONG7College of Carbon Neutral Energy, China University of Petroleum(Beijing)//National Engineering Reasearch Center for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//State Key Laboratory of Natural Gas Hydrate//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyCollege of Carbon Neutral Energy, China University of Petroleum(Beijing)//National Engineering Reasearch Center for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//State Key Laboratory of Natural Gas Hydrate//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologySouthwest Branch of China Petroleum Engineering & Construction CorporationSouthwest Branch of China Petroleum Engineering & Construction CorporationSouthwest Branch of China Petroleum Engineering & Construction CorporationCollege of Carbon Neutral Energy, China University of Petroleum(Beijing)//National Engineering Reasearch Center for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//State Key Laboratory of Natural Gas Hydrate//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyCollege of Carbon Neutral Energy, China University of Petroleum(Beijing)//National Engineering Reasearch Center for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//State Key Laboratory of Natural Gas Hydrate//Beijing Key Laboratory of Urban Oil and Gas Distribution TechnologyCollege of Carbon Neutral Energy, China University of Petroleum(Beijing)//National Engineering Reasearch Center for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//State Key Laboratory of Natural Gas Hydrate//Beijing Key Laboratory of Urban Oil and Gas Distribution Technologybjective Carbon capture, utilization and storage (CCUS) is essential for achieving carbon neutrality, in which the safety and efficiency of CO2 transmission plays a vital role. The pipeline transmission of CO2 in the supercritical phase has been widely applied internationally and China has basically mastered the rules to the process of supercritical CO2 pipelines steady-state transmission. However, further research is required to enhance understanding of the dynamic rules and safety risks associated with venting operations for supercritical CO2 pipelines with topographic relief. Methods Using OLGA, a physical model was developed for venting valve chambers at both ends of supercritical CO2 pipelines with topographic relief. A dynamic simulation analysis of pipeline venting was conducted, revealing the physical nature of the low-temperature phenomenon in the main pipeline during venting. Key issues in the venting process of the supercritical CO2 pipeline with topographic relief were discussed, focusing on the effects of topographic relief on phase transition, low-temperature risks, and dry ice formation. Finally, a safe venting scheme for backpressure control was suggested. Results The venting of supercritical CO2 pipelines with topographic relief should avoid high pressure and low temperatures as much as possible; appropriate venting pipe diameter and opening need to be designed to prevent risks such as low-temperature brittle fracture and dry ice formation; the suggested venting scheme was effective under specific terrain conditions, addressing extremely low temperatures in low-lying sections during main pipeline venting while minimizing harm at the venting outlet. Conclusion The research results offer theoretical backing for the safe venting process design and engineering construction of supercritical CO2 pipelines with topographic relief, holding practical value for engineering applications and contributing to ensuring the safe and efficient transmission of CO2 pipelines.http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2024.05.009supercritical co2ventinglow-temperature risksphase transition |
| spellingShingle | Bing YAN Bohui SHI Junwen CHEN Xiaoyong TANG Linfeng ZAN Yanjing WANG Yupei LI Jing GONG Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief You-qi chuyun supercritical co2 venting low-temperature risks phase transition |
| title | Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief |
| title_full | Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief |
| title_fullStr | Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief |
| title_full_unstemmed | Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief |
| title_short | Dynamic venting simulation of valve chambers at both ends of supercritical CO2 pipelines with topographic relief |
| title_sort | dynamic venting simulation of valve chambers at both ends of supercritical co2 pipelines with topographic relief |
| topic | supercritical co2 venting low-temperature risks phase transition |
| url | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2024.05.009 |
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