Pipeline transportation of CO is the key link to realize carbon capture, utilization, and storage. CO pipeline transportation may face the risk of leakage, which poses a great threat to the production process and personnel safety. It is of great significance to study the leakage and diffusion characteristics of CO in pipeline transportation for the safety design and personnel protection of the offshore CO storage platform. In order to study the leakage and diffusion characteristics of CO in pipeline transportation on offshore platforms, a physical model of a target platform and several numerical models were built, and a series of pipeline CO leakage and diffusion simulations were carried out using the method of numerical simulation. Based on the simulation results, the temperature distribution and CO concentration distribution on the offshore platforms after leakage were measured and analyzed. The influence of leakage direction (horizontal and oblique 45° upward) was also studied. Dangerous areas on the platform and suggestions for staff evacuation were given according to the simulation results. The research results of this work can provide guidance for the safe operation of offshore CO storage platforms.
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http://dx.doi.org/10.1021/acsomega.4c03002 | DOI Listing |
Cureus
December 2024
Department of Ophthalmology, Xi'an No. 3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, CHN.
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View Article and Find Full Text PDFSci Rep
January 2025
Department of Energy Resources, University of Stavanger, Stavanger, Norway.
Salt caverns are widely regarded as a suitable option for the underground storage of hydrogen. However, an accurate assessment of the hydrogen leakage through the walls of salt caverns into the surrounding formations remains crucial. In this work, the flow of hydrogen into the surrounding formation is evaluated by assuming that salt rock consists of bundles of tortuous nano-capillary tubes.
View Article and Find Full Text PDFSci Rep
December 2024
PetroChina Kunlun Gas Co., Ltd. Sichuan Branch, Chengdu Sichua, China.
During the filling process of LNG tank trucks, due to the long-term operation of filling equipment in low temperature and high-pressure conditions, the sealing parts in the equipment are prone to failure, leading to leaks. The reasons for the leakage of LNG filling equipment were analyzed, and the diffusion of LNG after different equivalent leakage hole diameters and different wind speeds were numerically analyzed. A gas leak monitoring system suitable for LNG filling stations was established based on TDLAS technology.
View Article and Find Full Text PDFIn this paper, we studied the diffusion characteristics and distribution patterns of gas leakage in soil from buried natural gas pipelines. The three-dimensional simulation model of buried natural gas pipeline leakage was established using Fluent software. Monitoring points of gas leakage mole fraction were set up at different locations, and the influence of buried depth and pressure factors on the mole fraction and diffusion of leaked gas was analyzed.
View Article and Find Full Text PDFHeliyon
December 2024
Accident Prevention and Assessment Division 1, National Institute of Chemical Safety, Ministry of Environment, Republic of Korea.
As the size of the chemical industry increases, chemical accidents continue to occur as the handling volume of chemicals also increases. Currently, in the case of a chemical accident, the prediction of the scope of influence mainly analyzes the scope of the impact on a single substance in the accident and does not consider the scope of the decomposition and reaction products. Nitric acid, one of the many chemical accidents, produces nitrogen dioxide, which is harmful when decomposed.
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