Study on the influence mechanism of the interaction between waxes and asphaltenes on hydrate growth
Fuel(2023)
摘要
Waxes and asphaltenes, two typical heavy components of crude oil, can complicate hydrate problems associated with deep-sea multiphase transport. This study investigates the transformation of water droplets into hydrate particles in waxy and wax-asphaltene coexisting systems. The results indicate that dissolved wax molecules in-crease the porosity, degree of transformation, and surface roughness of hydrate particles. In addition, the size of hydrate particles increases over time. Besides, wax precipitation precedes hydrate formation as wax content increases. When the crystal network structure is formed, the viscosity of the continuous phase increases signif-icantly, and the mass transfer process is severely impeded, thereby inhibiting the hydrate transformation process. Moreover, adding asphaltenes will influence adsorption at the oil-water interface and inhibit the effect of wax molecules on hydrate particles. The asphaltene concentration required to inhibit the effect of wax molecules is proportional to the wax concentration.
更多查看译文
关键词
Hydrate growth,Wax,Asphaltene,Interfacial rheology,Morphology
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要