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Separation Process Engineering: Includes Mass Transfer Analysis, Third Edition by Phillip C. Wankat

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G. Computer Problems

G1. We are operating a flash drum at a pressure of 1000 kPa. The flash drum is adiabatic. The feed to the flash drum is 100 kmol/h of a multicomponent mixture. This feed is 5.3 mol% ethylene, 22.6 mol% ethane, 3.7 mol% propylene, 36.2 mol% propane, and 32.2% n-butane. The feed is at 10,000 kPa and 100°C (this is at the point after the pump and heater—immediately before the valve to the drum where the feed is flashed).

Find the values of L, V, xi, and yi.

Use a process simulator and report the VLE package you use and briefly (one sentence) explain why you made this choice.

G2. We are operating a flash drum at a pressure of 1000 kPa. The flash drum is adiabatic. The feed to the flash drum is 100 kmol/h of a multicomponent mixture. ...

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