Flash Distillation of a Mixture of Four Hydrocarbons
Consider a liquid feed composed of -butane, -pentane, -heptane, and -octane at 50 °C and 1000 kPa. The feed has a flow rate of 10 kmol/hr and contains mole% for each of the four hydrocarbons.
The Demonstration calculates the composition of the liquid and vapor leaving the flash vessel for user-selected values of the flash pressure, , and the added heat rate, , expressed in kJ/hr. The adiabatic flash distillation case is recovered if one sets . Values of the flash pressure (in kPa) and temperature (in Kelvin) are also displayed.