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THC HNH

NG DNG PHN MM HYSYS M PHNG CNG NGHCHO NH MY CH BIN KHHOT NG CH

GPPM

1. Cc thit b chnh- Thp chng ct C-01, C-02, C-05.- Thit b trao i nhit E-01, E-02, E-03, E-04, E-09, E-14, E-15, E-18, E-1011.- Cc bnh tch V-03, V-08, V-101, V-07, V-12, V-13, V-14.- Turbo-Expander CC-01.- My nn K-01, K-02, K-03, K-04A/B, K-1011A/B/C/D2. Tin hnhm phng- Nhp chn New Case v tip tc nhp chn vo nt Add trong hp thoi SimulationBasis Manager.- Nguyn liu ca nh my c thnh phn ch yu l hydrocarbon nh, hm lng kh N2, CO2,

H2S < 5%, cc cu t phn cc t s dng m hnh nhit ng SRK hay PR. Trong quytrnh ny ta s dng m hnh Peng Robinson

- Chn tab Component thit lp cc cu t c mt trong thnh phn dng kh vo nh mytrong th vin cc cu t c sn.

- ng ca s trn li quay tr li hp thoi Basis Managerv nhn vo Enter SimulationEnvironment thit lp s m phng.

- Nhp phm F11 xut hin mt hp thoi nhp tn dng, cc thng s v nhit , psut, lu lng, ca dng Off Shorevo nh my. Tip tc chn Composition xuthin hp thoi Input Compositi on for Streamv ta nhp thnh phn mol ca cc cu t vo.

- Cung cp cc thng s cn thit cho cc thit b.o Thit b tcho Thp chng ct.o Thit b hp ph.o Thit b trao i nhit.o

Thit b nn v gin n.a. Thit b Slug Catcher

- M phng thit b Slug Catcher bng thit b tch ba pha nm ngang- Nhp tn gi cc dng vo vra i vi tng thit b tch- Trong cc thit b ny th lng nhit cung cp bng khng- Nhp chn vo Parameters nhp thm tn tht p sut ca bnh tch chn tn tht p

sut bng khng.

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- i vi cc thp tch khc cng thit k tng t.

b. Thit b hp phDo thit b hp phbng zeolite V-06A/B khng c trong cc biu tng m phng c

th thay thbng thit b Component Spli tter. Sn phm ra gm c dng kh kh tch trit nc v nc b hp ph. Trong tab Splits ta chn thnh phn dng nc b hp ph ch l nc. Do y l thit b hp ph gi nn nhit v p sut ca dng kh ra khng xc nh c nn tas dng thit b Set chn dng kh kh ra c nhit cao hn nhit dng vo thit b hpph 1,270C do qu trnh hp ph ta nhit v p sut thp hn 0,2 bar do tn tht. S dng haithit b nh vy m t mt cch r rng cho qu trnh hp ph.

c. Thp tch C-05Do khng c thit b un si li v ch l thp phn tch lng hi m phng bng thit

b Absorber. i vi thit b ny ch yu cu nhp y tn cc dng nhp liu v dng snphm ra. Cc thng s thit k nh sau:

- S a thc t ca thp: 12- S a l thuyt l 8 ( hiu sut a ca thp 0,667)

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- p sut nh 36,94 bar v y thp 37 bar do chn P/a l thuyt = 0,01 bar- Nhit d kin ca nh 430C v y 200C.

d. Thp tch Deethanizer C-01C thit b un si y thp chn Reboil er Absorber. Nhp y tn gi ca dng

nguyn liu, sn phm, nhit lng cung cp bi Reboiler. Ccthng s thit k:

- S a thc t: 32- S a l thuyt l 21 ( hiu sut ca thp 0,66)- p sut nh 28 bar v p sut y 28,16 bar do P/a = 0,008 bar v khng c tn thp p

sut trong Reboiler.

- Nhit d kin nh thp 140C v y thp 1090C.Nhng trong thit b ny c t do (Degrees of Freedom) DOF = 1 hay ta cn phi thit

lp thm 1 rng buc cho thp c th hot ng c. Rng buc i vi thp C -01:

Sn phm lng ythp c thnh phn mol C2- 2%, trong quy trnh chn C2

-= 2%

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e. Thp n nh C-02Thp bao gm thit b un si li y thp v thit b ngng t nh chn Distillation

Column. Nhp y cc tn gi ca dng nhp liu vo, sn phm ra ng thi cn nhp tngi ca nhit lng cung cp bi Reboiler v Condenser. Cc thng s thit k ca thp C-02:

- S a thc t: 30- S a l thuyt 20 ( hiu sut thp 0,6667)- p sut nh 10 bar v p sut y 10,65 bar do P/a = 0,0075 bar, tn tht p sut nh 0,5

bar v khng c tn thp p sut trong Reboiler.

- Nhit d kin nh thp 370C v y thp 1500C.- Nhng trong thit b ny c t do (Degrees of Freedom) DOF= 2 hay ta cn phi thit lp

thm 2 rng buc cho thp c th hot ng c. Hai rng buc i vi thp C -02:

o Sn phm kh Bupro ra khi thp c thnh phn mol ca C5+ 2% trong quy trnhny chn nC5 + iC5 = 2%.

o Sn phm lng Condensate ra khi y thp c thnh phn mol ca C 4- 2% trongquy trnh ny chn nC4 + iC4 = 1,5%.

f. Thp Splitter C-03Qu trnh thit k tng t nh trn nhng cc thng s thit k i vi thp C-03:- S a thc t: 30.- p sut nh 16 bar v p sut y 16,8 bar do P/a = 0,1 bar, tn tht p sut nh 0,5 bar

v khng c tn thp p sut trong Reboiler.

- Nhit d kin nh thp 45,50C v y thp 970C.- Sn phm kh Propane nhthp c thnh phn mol C4+ 2% chn nC4 + iC4 = 1,5%.- Sn phm lng Butane ra khi y thp c thnh phn mol C3- 2% chn C3- = 1,5%.

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g. Thit b trao i nhit- E-14, E-08, E-04 chn Heat Exchanger; E-18 Heater. Cc thit b lm ngui bng

khng kh Air Cooler.

- Chn P = 0,6 bar trong tab Parameters. Trong tab Worksheet chn cc thng s nhit theo yu cu i vi tng thit b. Cn i vi Air Cooler chn nhit dng khng kh vo

l 250

C, nhit ca dng khng kh ra l 370

C v thit b mt pass.h. Cc thit b khc

- i vi thit b nn Compressor v gin n Expander chn hiu sut on nhit l 75% trongtab Parameters. Trong tab Worksheet nhp cc thng s p sut theo yu cu i vi tngthit b.

- i vi cc van gin n theo hiu ng Joule Thomson, ng enthalpy th thit b c sdng l Valve. Trong tab Worksheet nhp cc thng s v p sut theo yu cu ca tng itng thit b.

- m phng s tch dng chn Tee v trn dng chn Mixer. Hai thit b ny ch cn yucu nhp cc tn cc dng vo v dng ra. i vi thit b tch dng qua E-14 v CC-01trc khi i vo thp C-01 th ta chn t l dng qua E-14 l 34% dng tng trong tabParameters. Cn i vi thit b tch dng kh kh i ti sinh th trong tab Worksheet nhplu lng khi lng dng kh i ti sinh l 276 tn/ ngy.

- Ngoi ra khng ch nhit v p sut ca dng vt liu ny i vi dng vt liu khc,hay nng lng ca thit b nn ph thuc vo thit b gin n ta s dng thit b Set. Trongtab Connections chn bin mc tiu (Target Variable) ca i tng cn hiu chnh v itng ngun. Trong tab Parameters chn cc thng s thit k ph hp vi tng i tngcn hiu chnh.

- Sau khi m phng xong cc thit b ca quy trnh v chy Solveri vi cc thp, ta nhpchn voPFD hin th s thit k ca c quy trnh nh my ch bin kh Dinh C trongch GPP.