Study on Supersonic Dehydration Efficiency of High Pressure Natural Gas

Zhenya Duan, Zhiwei Ma, Ying Guo, Junmei Zhang, Shujie Sun and Longhui Liang
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Zhenya Duan: College to Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
Zhiwei Ma: College to Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
Ying Guo: College to Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
Junmei Zhang: College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Shujie Sun: College to Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
Longhui Liang: Nanjing Tica Thermal Technology Co. Ltd., Nanjing 210038, China

Sustainability, 2020, vol. 12, issue 2, 1-15

Abstract: Supersonic cyclone separator is a novel type of natural gas dewatering device that overcomes the shortcomings of traditional dewatering methods. In order to investigate the factors affecting the separation efficiency and improve the separation performance of the supersonic cyclone separator, the discrete particle model was employed in numerical calculation. On the basis of an accurate numerical model, the flow field of supersonic cyclone separator was analyzed, the trajectories of droplets were predicted, and the factors affecting the separation efficiency of droplets were investigated. The numerical results indicated that Laval nozzle could provide the necessary conditions for the condensation of water vapor. The swirler can throw droplets onto the wall or into the separator, both of which are foundations for realizing the separation of droplets. Droplets had three typical trajectories affected by centrifugal effect and inertia effect. The existence of a shock wave increases the swirl intensity of droplets, which is conducive to the separation of droplets. The diameter of droplets should be increased as much as possible in order to improve separation efficiency, and the gas–liquid area ratio should be about 45.25%, and the number of vanes should be 10.

Keywords: supersonic cyclone separator; discrete particle model; flow field; droplet trajectories; separation efficiency (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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