강성 방 
 1 Continuous Distillation Column Design Jungho Cho Department of chemical engineering , Dongyang university 1 . ( ) McCabe - Thiele Method K - value . ( 1 ) : : , K - value . 
 3 1 . 0 Vapor Mole Fraction of Methanol Liquid Mole Fraction of Methanol Figure 1 : ( 7 ) . ( 7 ) : f : , f 5 . , Figure 2 . , ( ) , ( ) , (- ) , ( ) , ( ) 
 6 Feed Feed plate Figure 6 : Superheated vapor feed Table 1 : ( a ) ( b ) ( c ) ( d ) ( e ) Fraction Vaporized , ( f ) Slope f - 1 - f Concentration , Mole fraction of Methanol Liquid x B Vapor y D Feed condition Sub - cooled liquid Saturated liquid Two - phase Saturated vapor Superheated vapor 95 mole %, 95 mole %..,. Figure 7 . Figure 7 ( 0 . 3385 , ) . . 
 8 MaCable - Thiele . .. ( ?) ( 9 ) . ( 9 ) Figure 8 ( 10 ) . ( 10 ) ( Reflux ratio ) . ( 11 ) ( 10 ) ( 11 ) ( 9 ) . ( 12 ) : : Figure 7 Figure 9 . Figure 9 ( 0 . 95 , 0 . 95 ) . y ( 0 , ) 
 10 ( 13 ) MaCable - Thiele . .. ( ?) ( 9 ) . ( 14 ) Figure 10 ( 15 ) . ( 15 ) ( 15 ) ( 14 ) ( 16 ) . ( 16 ) ( 16 ) ( ) . Figure 11 . Figure 11 . . x Figure 
 11 Vapor Mole Fraction of Methanol Liquid Mole Fraction of Methanol Figure 11 : Vapor Mole Fraction of Methanol Liquid Mole Fraction of Methanol Figure 12 : 
 12 3 . PRO / II with PROVISION ( Chemical Process Simulator ) . McCabe - Thiele . PRO / II . ASPEN PLUS . McCabe - Thiele -. Figure 13 Figure 15 . Vapor Mole Fraction METHANOL Liquid Mole Fraction METHANOL Figure 13 : - ( ) Figure 13 ( ) . . 
 13 . Figure 14 SRK -. Vapor Mole Fraction METHANOL Liquid Mole Fraction METHANOL Figure 14 : - ( SRK ) SRK . . 
 17 16 14 Number of Stages Utility Consumptions Reflux Ratio Figure 17 : - Utility Figure 16 ( ) Figure mole % 95 mole % Rigorous R / R min Number of Condenser Total Utility Reflux Ratio Reboiler Duty Tray Duty Costs x x x x x x x x x x x x Simulation . 8 PRO / II Rigorous Simulation Keyword Input . 
 19 TOTAL RATE , KG - MOL / HR ASPEN PLUS PRO / II ASPEN PLUS -. PRO / II 1 . 2 bar 50 mole %. PRO / II Keyword Graphic . Figure 17 Figure 23 . Figure 17 Flash drum Stream number . Step 1 . bkp . Figure 17 : Flowsheet of Two - phase Flash 
 20 Figure 18 : Setup Specification Figure 18 Setup specification '.. Component specification ' Next button . Figure 19 : Component Specification Figure 19 Component specification '.. Property specification ' NRTL . 
 21 Figure 20 . Figure 20 : Property Specification Figure 21 : Stream Specification , ,. Figure 21 . , Requied Input Incomplete "..,. Next button . 
 22 Figure 22 : Block Specification Figure bar Vapor fraction ASPEN PLUS . 1 . 2 bar 50 mole %( 0 . 5 fraction ) PRO / II Figure 23 : Flash Calculation Simulation Results 
 23 . PRO / II Shortcut ' ASPEN PLUS DSTWU '. Figure 24 : Flowsheet of DSTWU for the separation of methanol - water 
 24 Figure 25 : Block specification fot DSTWU Figure 25 PRO / II Shortcut 1 . 05 bar 1 . 30 bar , Reflux ratio Inpt Changed ' Step 1 . bkp . . Figure 26 : DSTWU Modeling Results Figure 26 PRO / II Shortcut . ASPEN PLUS 4 . 45 PRO / II 3 . 85 . 
 25 ASPEN PLUS PRO / II . PRO / II Sub - cooled type ASPEN PLUS Bubble type . . ASPEN PLUS Table 2 Table 3 . Table 3 : DSTWU Case Study Results using ASPEN PLUS Table 3 Figure 27 . R / R min Number of Condenser Total Utility Reflux Ratio Reboiler Duty Tray Duty Costs Figure 27 : - Utility ( ASPEN PLUS ) 
 26 Figure 27 Figure 17 Number of Stages Reflux Ratio Utility Consumptions Rigorous Modeling . PRO / II COLUMN ASPEN PLUS RADFRAC . Figure 28 Figure ? ?. Model library Radfrac Stream Figure 28 . Block option Figure 29 Figure 37 . 
 27 Figure 28 : Flowsheet of RADFRAC for the separation of methanol and water Figure 29 : Block specification ( 1 ) : Configuration Figure 29 PRO / II 8 Total condenser Top Distillate Rate 50 Kmol / hr 2 . 3 . . 
 28 Figure 30 : Block specification ( 2 ) : Streams Figure 31 : Block specification ( 3 ) : Pressure Profile Figure 31 . Bubble condenser . Condenser . Figure 32 . 
 29 Figure 32 : Block specification ( 4 ) : Condenser Temperature Specification . 95 mole % 95 mole %. Figure 33 Figure ? ?. Figure 33 : Block specification ( 5 ) : Design specification ( 1 ) 
 30 Figure 34 : Block specification ( 6 ) : Design specification ( 2 ) Figure 35 : Block specification ( 7 ) : Design specification ( 3 ) Heavy Key Component 0 . 05 . 
 31 Figure 36 : Block specification ( 8 ) : Variable ( 1 ) Light Key Component 0 . 05 Distillate Rate . Figure 37 Figure 39 . Figure 37 : RADFRAC Modeling Results ( 1 ) 
 32 Figure 38 : RADFRAC Modeling Results ( 2 ) Figure 39 : RADFRAC Modeling Results ( 3 ) 5 . - McCabe - Thiele PRO / II ASPEN PLUS . . 
 33 PRO / II ASPEN PLUS .