当前位置：
X-MOL 学术
›
Energy Fuels
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Effect of Wax on Cohesive Behavior of Gas Hydrate under High Pressure
Energy & Fuels ( IF 5.2 ) Pub Date : 2023-03-16 , DOI: 10.1021/acs.energyfuels.2c04379 Shi-Dong Zhou 1 , Zhen-Hao Ren 1 , Yu Guo 1 , Wen-Rui Zhou 1 , Yang Liu 1
Energy & Fuels ( IF 5.2 ) Pub Date : 2023-03-16 , DOI: 10.1021/acs.energyfuels.2c04379 Shi-Dong Zhou 1 , Zhen-Hao Ren 1 , Yu Guo 1 , Wen-Rui Zhou 1 , Yang Liu 1
Affiliation
|
In the deep-sea crude oil pipeline, the formation of hydrates and the deposition of wax will cause pipeline blockage under adverse conditions. Moreover, the interaction of wax and hydrates will lead to a higher tendency of pipeline blockage, which will pose a huge threat to the transportation of crude oil on the sea floor. In order to clarify the effect of wax on cohesive behavior of gas hydrate, the gas hydrate particles were used as experimental particles to measure the adhesion force between particles in the wax-free system and the wax-containing system directly, and then, the effect of wax on the adhesion force between particles was compared and analyzed. The results showed that wax can destroy the shell structure of hydrate particles, resulting in easier formation of liquid bridges and significantly enhanced adhesion force. Therefore, the adhesion force in the wax-containing system would be significantly greater than that in the wax-free system. In addition, by comparing the adhesion force of different hydrate particles in contact with wax particles, it was found that under high pressure, the precipitation of wax may first cause the agglomeration of CH4 hydrate. Finally, by analyzing the adhesion force and particle morphology at different wax concentrations, the influence mechanism of wax on hydrate cohesion behavior was proposed. This study provides a theoretical basis for eliminating or reducing the blockage of deep-sea crude oil pipelines.
中文翻译：
蜡对高压下天然气水合物内聚行为的影响
在深海原油管道中，水合物的形成和蜡的沉积会在不利条件下造成管道堵塞。而且，蜡与水合物的相互作用会导致管道堵塞的倾向性增加，这将对海底原油的运输构成巨大威胁。为明确蜡对天然气水合物黏聚行为的影响，以天然气水合物颗粒为实验颗粒，直接测量无蜡体系和含蜡体系中颗粒间的粘附力，进而分析其影响。对蜡对颗粒间粘附力的影响进行了比较分析。结果表明，蜡可以破坏水合物颗粒的壳结构，从而更容易形成液桥并显着增强粘附力。所以，含蜡体系中的附着力明显大于无蜡体系中的附着力。此外，通过比较不同水合物颗粒与蜡颗粒接触的粘附力，发现在高压下，蜡的析出可能首先引起CH的团聚4水合物。最后，通过分析不同蜡浓度下的粘附力和颗粒形貌，提出了蜡对水合物内聚行为的影响机理。该研究为消除或减少深海原油管道堵塞提供了理论依据。
更新日期：2023-03-16
中文翻译：
蜡对高压下天然气水合物内聚行为的影响
在深海原油管道中，水合物的形成和蜡的沉积会在不利条件下造成管道堵塞。而且，蜡与水合物的相互作用会导致管道堵塞的倾向性增加，这将对海底原油的运输构成巨大威胁。为明确蜡对天然气水合物黏聚行为的影响，以天然气水合物颗粒为实验颗粒，直接测量无蜡体系和含蜡体系中颗粒间的粘附力，进而分析其影响。对蜡对颗粒间粘附力的影响进行了比较分析。结果表明，蜡可以破坏水合物颗粒的壳结构，从而更容易形成液桥并显着增强粘附力。所以，含蜡体系中的附着力明显大于无蜡体系中的附着力。此外，通过比较不同水合物颗粒与蜡颗粒接触的粘附力，发现在高压下，蜡的析出可能首先引起CH的团聚4水合物。最后，通过分析不同蜡浓度下的粘附力和颗粒形貌，提出了蜡对水合物内聚行为的影响机理。该研究为消除或减少深海原油管道堵塞提供了理论依据。
京公网安备 11010802027423号