驱动力对瓦斯水合分离效果影响

利用可视化搅拌式瓦斯水合分离实验装置，开展了4种驱动力下3种瓦斯气样水合分离实验，获得了水合分离速率、回收率、分配系数等目标参数。结果表明：驱动力由1 MPa提升至4 MPa的过程中，3种气样的水合分离速率分别由1.394×10-6,1.162×10-6,0.943×10-6m3/min递增至1.55×10-6,1.564×10-6,1.609×10-6 m3/min；CH4分离浓度分别由85.89%,77.15%,71.15%递增至91.61%,81.72%,77.17%，CH4回收率分别由6.22%,6.75%,8.79%递增至10.13%,10.25%,11.39%；分配系数分别由1.10,1.17,1.23递增至1.21,1.26,1.33。分析认为，驱动力增大可以改善瓦斯水合分离效果，加快水合分离进程。

Influence of driving force to gas hydration separation effect

The hydrate separation experiment of three gas samples with four driving forces was conducted by visual agitated gas hydrate separation experimental device,and some target parameters were obtained,such as hydrate separation rate,recovery,partition coefficient,and so on.The results show that in the process of the driving force increased from 1 MPa to 4 MPa,the hydrate separation rate of three gas samples respectively increased from 1.394×10-6,1.162×10-6,0.943×10-6 to 1.55×10-6,1.564×10-6,1.609×10-6 m3/min,the CH4 separation concentration respectively increased from 85.89%,77.15%,71.15% to 91.61%,81.72%,77.17%,the CH4 recovery respectively increased from 6.22%,6.75%,8.79% to 10.13%,10.25%,11.39%,the partition coefficient respectively increased from 1.10,1.17,1.23 to 1.21,1.26,1.33.These demonstrate that the increase of driving force could improve the gas hydrate separation effect,and accelerate the gas hydrate separation process.