The industrial removal process of the light hydrocarbon and water from wet natural gas can be simulated in laboratory with the\nindependently designed helically coiled tube gas-liquid separator. Experiment and numerical simulation are combined to analyze\nthe influences of various inlet velocities and gas void fractions on the gas-liquid separation efficiency and pressure-drop between\nthe inlet and outlet of the helically coiled tube. The results show that, at the inlet velocity of 4m/s to 18 m/s and the gas void fraction\nof 88% to 97% for the gas-liquid mixture, the gas-liquid separation efficiency increases at the beginning and then decreases with\nincreasing inlet velocity. Afterwards there is another increasing trend again. The gradient of pressure-drop increases slowly and\nthen fast with the increasing inlet velocity. On the other hand, the gas-liquid separation efficiency first increases with the gas void\nfraction and then shows a decreasing trend while the pressure-drop keeps falling down with the gas void fraction increasing. Above\nall the optimal operating parameters of the helically coiled tube separator are inlet velocity of 13 m/s and gas void fraction of 93%,\nand the separation efficiency and pressure-drop are 95.2% and 0.3MPa, respectively.
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