Adiabatic Flash Drum with Binary Liquid Feed
Adiabatic Flash Drum with Binary Liquid Feed
A high-pressure, hot, liquid mixture of methanol and water is fed into an adiabatic flash drum (or vapor-liquid separator), which is at a lower pressure. Because the flash drum pressure is below the bubble pressure, some of the liquid evaporates, and the temperature decreases because energy is needed to evaporate the liquid. Thus, a vapor-liquid mixture in equilibrium exits the drum.
You can vary the inlet composition, inlet temperature, and outlet pressure.
The program uses a material balance, an energy balance, and Raoult's law for vapor-liquid equilibrium to determine the amounts of liquid and vapor exiting the drum and the mole fractions of each phase.