LNG light hydrocarbon separation process design and analysis
1 t of LNG can release approximately 230 kW·h of cold energy,therefore from the perspective of utilizing LNG cold energy,a LNG light hydrocarbon separation process was designed.Sensitivity analysis was carried out for the process.P-R equation of state was selected as the thermodynamic equations,and simulation calculation was carried out for the process using the simulation software of HYSYS.The feed quantity of raw LNG was 342.5 t/h,the mass flow of recovered natural gas,ethane and LPG products were 271.16,46.79 and 24.55 t/h,respectively,and the total process power consumption was 446.67 kW.At the same time,it was de-termined that the logistics of the simulation calculation system met the material balance.
LNGlight hydrocarbon separationutilization of liquefied natural gas cold energylow tempera-ture separation of natural gas
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