Basic skill for ASPEN plus Liang Yu Department of Biological Systems Engineering Washington State University 01. 10. 2014.

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Presentation transcript:

Basic skill for ASPEN plus Liang Yu Department of Biological Systems Engineering Washington State University

Introduction Physical relationships Mass and energy balance Equilibrium relationships Rate correlations Predicts Stream flowrates, compositions, and properties Operating conditions Equipment sizes Economical analysis Energy analysis

Start ASPEN plus

Case study_Cumene Production Q = 0 Btu/hr Pdrop = 0 psi C6H6 + C3H6 = C9H12 Benzene Propylene Cumene (Isopropylbenzene) 90% Conversion of Propylene P = 1 atm Q = 0 Btu/hr Benzene: 40 lbmol/hr Propylene: 40 lbmol/hr T = 220 F P = 36 psia Use the SRK or RK-SOAVE Property Method Filename: CUMENE.BKP REACTOR FEED RECYCLE REAC-OUT COOL COOL-OUT SEP PRODUCT Goal: understand the basic knowledge of mass balance in the process

Select template

Components input_1 US Unit

Components input_2 Click Next

Unknown components input_1 Click

Unknown components input_2

Unknown components input_3 Click

Unknown components input_4

Unknown components input_5

Unknown components input_6

Select method_thermodynamics

Another property method

Calculate properties

T vs. mole fraction_ Benzene and Propylene

Simulation windows

Select unit models_ RStoic

Select unit models_ Heater and Flash2

Click “Material” to link units

Link the units_1

Link the units_2

Rearrange the flowsheet

Save the case

FEED input_1

FEED input_2

COOL input

REACTOR input_1

REACTOR input_2

REACTOR input_3

REACTOR input_4

SEP input Unit

Run the simulation

Calculation is completed

Stream results

Click

Stream results