Transcription
Chapter 3 ASPEN EmergencyChlorine Scrubber FlowsheetA Tour of the OLI-ASPEN Interface (RADFRAC example)The following example is a simulation of a Chlorine scrubber. Caustic is used to remove chlorine from a gas stream.The caustic feed rate to the column is adjusted to reduce the chlorine in the column overhead gas to 0.5 moles/hr.Generating Chemistry ModelUsing the OLI Chemistry Wizard, create a chemistry model with the following components. We recommend the name ofthe model to be CHLORINE. Turn off all solids in this model.H2O, CO2, CL2, N2, NAOHA Guide to Using The Aspen OLI InterfaceASPEN Emergency Chlorine Scrubber Flowsheet 3-35
Creating the Aspen FlowsheetStart Aspen normally and open the Chlroine.BKP file just created.Create the following flowsheet3-36 ASPEN Emergency Chlorine Scrubber FlowsheetA Guide to Using The Aspen OLI Interface
Caustic Feed Stream (S1)Feed Stream (S2)A Guide to Using The Aspen OLI InterfaceASPEN Emergency Chlorine Scrubber Flowsheet 3-37
RADFRAC (Block B1) configuration (5 stages)RADFRAC (Block B1) streams3-38 ASPEN Emergency Chlorine Scrubber FlowsheetA Guide to Using The Aspen OLI Interface
RADFRAC (Block B1) pressureRADFRAC (Block B1) estimatesA Guide to Using The Aspen OLI InterfaceASPEN Emergency Chlorine Scrubber Flowsheet 3-39
Design Specs for BLOCK B13-40 ASPEN Emergency Chlorine Scrubber FlowsheetA Guide to Using The Aspen OLI Interface
Now select the Vary ObjectNow run the caseA Guide to Using The Aspen OLI InterfaceASPEN Emergency Chlorine Scrubber Flowsheet 3-41
Stream ResultsSubstream: MIXEDMole Flow HC O3 ‐H NACO3‐NA CL‐Total Flow lbmol/hrTotal Flow lb/hrTotal Flow cuft/hrTemperature FPressure psiaVapor FracLiquid FracSolid Fra cEnthalpy Btu/lbmolEnthalpy Btu/lbEnthalpy Btu/hrEntropy Btu/lbmol‐REntropy Btu/lb‐RDensity lbmol/cuftDensity lb/cuftAverage MWLiq Vol 60F cuft/hr*** LIQUID PHASE 197714.69595010‐1.21E 05‐6633.57‐7.39E 0615.081490.8284563.76949368.621118.2043316.511182 . 2 723.592 . 2 7002 6 . 300000000054.431976.79721639.569 1 . 414.84291100‐77605.4‐2136.82‐4.22E 214.69595100‐81553.4‐2395.09‐4.48E 3517.6248488.830514.69595010‐1.18E 05‐5843.47‐7.14E 4.529493-42 ASPEN Emergency Chlorine Scrubber Flowsheet6.705763A Guide to Using The Aspen OLI Interface
The highlighted fields show that the flowrate of the caustic stream (S1) was adjusted and that we met the specifiedflowrate of chlorine in the vapor stream S3.A Guide to Using The Aspen OLI InterfaceASPEN Emergency Chlorine Scrubber Flowsheet 3-43
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A Guide to Using The Aspen OLI Interface ASPEN Emergency Chlorine Scrubber Flowsheet 3-35 Chapter 3 ASPEN Emergency Chlorine Scrubber Flowsheet A Tour of the OLI-ASPEN Interface (RADFRAC example) The following example is a simulation of a Chlorine scrubber. Caustic is used to remove chlorine from a gas stream.
