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Optimization in liquid-vapor region for cryogenic based separation simulation of natural gas components
The liquid-vapor (L-V) and solid-vapor (S-V) domains of the natural gas mixture with high CO2 content and heavier hydrocarbons up to pentane for cryogenic separation have been obtained through simulation. The simulations are performed using Aspen HYSYS. The pressure-temperature phase diagram is generated for selected gaseous mixtures and the phase boundaries of both liquid-vapor region and solid-vapor region are identified. Optimized pressure and temperature conditions in liquid-vapor region have been found using response surface methodology through Design-Expert software. For gas mixture 1, the first set of condition from two set of optimized conditions for pressure and temperature is 38.04 bar and 0 °C while the second set of condition constitutes of 9.92 bar and -30 °C. The optimum pressure and temperature conditions for gas mixture 2 are 38.67 bar, 0 °C and 6.95 bar, -30 °C. © 2019 Penerbit Akademia Baru.
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
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