Question: Redo Problem 6.12 using Aspen Plus Problem 6.12 Ethylene at 30 bar and 100C passes through a heaterexpander and emerges at 20 bar and 150C.

Redo Problem 6.12 using Aspen Plus

Problem 6.12

Ethylene at 30 bar and 100°C passes through a heaterexpander and emerges at 20 bar and 150°C. There is no flow of work into or out of the heater-expander, but heat is supplied. Assuming that ethylene obeys the Peng-Robinson equation of state, compute the flow of heat into the heater-expander per mole of ethylene

30 bar 100C Q 20 bar 150C

P = RT aa Vm-b V2+2bVm b

30 bar 100C Q 20 bar 150C

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