COMPONENTS

C1 CH4 C1 /

C2 C2H6 C2 /

C3 C3H8 C3 /

I-C4 C4H10-2 I-C4 /

N-C4 C4H10-1 N-C4 /

I-C5 C5H12-2 I-C5 /

N-C5 C5H12-1 N-C5

FLOWSHEET

BLOCK DESTKOLO IN=DESTFEED OUT=DEST BOTTEN

BLOCK B15 IN=7 OUT=DESTFEED

BLOCK PUMP IN=FEED OUT=7

PROPERTIES RK-SOAVE

PROP-REPLACE IDEAL SYSOP0A

PROP-REPLACE STEAM-TA SYSOP12

PROP-REPLACE RK-SOAVE SYSOP3

PROP VLMX VLMX20 / MULMX MULMX03 / SIGLMX SIGLMX02 / &

MUVMX MUVMX01 / KVMX KVMX01

MODEL-PARAME ESRKS

STREAM FEED

SUBSTREAM MIXED TEMP=35 PRES=12.8 MOLE-FLOW=431

MOLE-FRAC C1 0.01 / C2 0.09 / C3 0.306 / I-C4 0.151 / &

N-C4 0.417 / I-C5 0.022 / N-C5 0.004

BLOCK B15 HEATER

PARAM PRES=18 DUTY=550000

BLOCK DESTKOLO DSTWU

PARAM LIGHTKEY=C3 RECOVL=0.8 HEAVYKEY=I-C4 RECOVH=0.07 &

PTOP=16.7 PBOT=18 RR=-1.4

BLOCK PUMP PUMP

PARAM PRES=18

DESIGN-SPEC BOT

DEFINE XC1 MOLE-FRAC STREAM=BOTTEN SUBSTREAM=MIXED &

COMPONENT=C1

DEFINE XC2 MOLE-FRAC STREAM=BOTTEN SUBSTREAM=MIXED &

COMPONENT=C2

DEFINE XC3 MOLE-FRAC STREAM=BOTTEN SUBSTREAM=MIXED &

COMPONENT=C3

SPEC "XC1+XC2+XC3" TO "0.1"

TOL-SPEC "0.001"

VARY BLOCK-VAR BLOCK=DESTKOLO VARIABLE=RECOVL SENTENCE=PARAM

LIMITS "0.03" "0.96"

DESIGN-SPEC DES

DEFINE XC1 MASS-FRAC STREAM=BOTTEN SUBSTREAM=MIXED &

COMPONENT=C1

DEFINE XC2 MOLE-FRAC STREAM=BOTTEN SUBSTREAM=MIXED &

COMPONENT=C2

DEFINE XC3 MOLE-FRAC STREAM=BOTTEN SUBSTREAM=MIXED &

COMPONENT=C3

DEFINE XC4I MOLE-FRAC STREAM=DEST SUBSTREAM=MIXED &

COMPONENT=I-C4

DEFINE XC4N MOLE-FRAC STREAM=DEST SUBSTREAM=MIXED &

COMPONENT=N-C4

DEFINE XC5I MOLE-FRAC STREAM=DEST SUBSTREAM=MIXED &

COMPONENT=I-C5

DEFINE XC5N MOLE-FRAC STREAM=DEST SUBSTREAM=MIXED &

COMPONENT=N-C5

SPEC "XC4I+XC4N+XC5I+XC5N" TO "0.05"

TOL-SPEC "0.001"

VARY BLOCK-VAR BLOCK=DESTKOLO VARIABLE=RECOVH SENTENCE=PARAM

LIMITS "0.03" "0.95"

STREAM-REPOR MOLEFLOW MOLEFRAC