Based on the experiments at low and high pressures,the application of supersonic dehydration will be further researched.Experiments indicate that the effect of supersonic dehydration is related to the pressure drop,and that when the pressure exceeds 7 MPa,supersonic dehydration is superior to turboexpander refrigeration dehydration and that Joule-Thomson expansion dehydration.Supersonic dehydration will play an important role in the future natural gas processing.