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Volume 32 Issue 3
Apr 2018
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Chinese Journal of High Pressure Physics  > 2018  >  32(3): 031101.
BIAN Jiang, CAO Xuewen, YANG Wen, YU Hongxi, YIN Pengbo. Influence of Inlet Pressure on Supersonic Liquefaction of Natural Gas Mixtures[J]. Chinese Journal of High Pressure Physics, 2018, 32(3): 031101. doi: 10.11858/gywlxb.20170639
Citation: BIAN Jiang, CAO Xuewen, YANG Wen, YU Hongxi, YIN Pengbo. Influence of Inlet Pressure on Supersonic Liquefaction of Natural Gas Mixtures[J]. Chinese Journal of High Pressure Physics, 2018, 32(3): 031101. doi: 10.11858/gywlxb.20170639
shu

Influence of Inlet Pressure on Supersonic Liquefaction of Natural Gas Mixtures

doi: 10.11858/gywlxb.20170639
  • 1.

    College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China

  • 2.

    South China Branch, Sinopec Sales Co., Ltd., Guangzhou 510620, China

  • 3.

    Huguang Branch, Sinopec Xinjiang Coal Gas Pipeline Co., Ltd., Changsha 410016, China

  • Received Date: 09 Sep 2017
  • Rev Recd Date: 25 Oct 2017
    Abstract
  • In this paper, to find out about how the inlet pressure influences the supersonic liquefaction of natural gas mixtures, we established a three-dimensional mathematical model for the supersonic condensation flow of the methane-ethane mixture gas, obtained the axial parameters along the Laval nozzle, and conducted experiments to verify the gas condensate phase transition of double condensable components.It was found that the numerical simulation is in good agreement with the experimental results, thereby proving the mathematical model and the calculation method as correct.We also investigated the influences of the inlet pressure on the supersonic liquefaction of methane-ethane mixtures.The results indicate that, when the temperature and composition of the Laval nozzle inlet remain the same, the nucleation position of the mixed gas moves forward, the nucleation rate, the mean droplet radius and the liquid mass fraction all increase with the increase of the inlet pressure.The greater the inlet pressure, the more apt for the condensation of the gas mixture in the Laval nozzle to occur.In the actual production, the condensation of natural gas mixtures can be promoted by adjusting the inlet pressure, and the liquefaction efficiency of the Laval nozzle will be improved.

     

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