CHNG CT DU THTI SAO PHI NGHIN CU QU TRNH CHNG CT DU TH?-

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Thnh phn nguyn liu cc k phc tp c trng bi ng cong chng ct, khi lng ring v phn nh C5S dng khi nim Cu t gi - Pseudo-components Cu trc phn xng phc tp vi nhiu thit b lin kt v h tr cho nhau: Bm, H thng ng ng, H thng thu hi nhit, L t, H thng valve, Thp chnh, thp ph (Strippers), Hi lu tun hon Thp chng ct vi nhiu dng nguyn liu v v nhiu dng sn phm ra

GII THIU-

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Phn tch du th thnh nhng phn on nh hn theo nhng khong nhit si khc nhau Sn phm ca phn xng chng ct kh quyn: Fuel Gas, LPG, Full Range Naphta, Kerosen, LGO, HGO v cn chng ct kh quyn Sn phm ca phn xng chng ct chn khng: LVGO, HVGO, Cn chn khng H thng tin gia nhit, thu hi nhit, l gia nhit Khng c Reboiler y thp S dng hi nc qu nhit y thp chnh v Strippers (ngoi tr Stripper Kerosene) H thng thp tch kh v n nh xng Tiu chun ca qu trnh tch: GAP v OVERLAP trn c s ng cong chng ct

BI TON: M PHNG THP CHNG CT KH QUYN S LIU BAN UAssay du th: ng cong chng ct TBP%V 5oF oC

Phn nh - LightendCu t C1 C2 C3 IC4 %V 0.0004 0.0047 0.0453 0.0436

198

92.2

1020 30 40

264379 490 590

128.9192.8 254.4 310.0

nc4neo-C5 iC5 n-C5 Cyclo-C5 2,2-dimetyl-C4 2,3-dimetyl-C4 2-metyl-C5 3-metyl-C5 n-C6 Tng

0.07130.0005 0.0271 0.0228 0.0004 0.0013 0.0007 0.0037 0.001 0.0008 0.2236

5060 70 80oAPI

678760 838 939

358.9404.4 447.8 503.9

: 41,2

T trng tiu chun : d6060 = 0,8194

BI TON: M PHNG THP CHNG CT KH QUYN S LIU BAN UNguyn liu v Sn phm:Lu lng (kg/h) Du th 812500 Du th T: 50oC v P: 1,9 kg/cm2g Bm tng p 1: 20 kg/cm2g Bm tng p 2 (sau kh mui): 32 kg/cm2g

GasFull range Naphtha Kerosene

2181111320 51148

Trng thi nhit ca Du th khi vo thp T: 364oC v P: 2.45 kg/cm2g

LGOHGO Cn ( Residue)

17071669811 407324 Cc dng hi nc qu nhitLu lng kg/h Nhit oC 180 180 180 p sut kg/cm2g 3.5 3.5 3.5 Ghi ch stripping y thp chnh stripping LGO stripping HGO

steam 1 steam 2 steam 3

16282 5075 2600

BI TON: M PHNG THP CHNG CT KH QUYN S LIU BAN UCc thng s thit k v vn hnh ca thp chnhS a Nhit bnh tch nh, C Nhit nh, oC Nhit y, oC 30 50 128 350

p sut nh, kg/cm2gp sut y, kg/cm2g Cc h thng Pumparound Pumparound 1

1.51.9 Pumparound 2

T an a Cng sut nhit, KW Nhit vo thp, oC

31 -16720 77

T an a Cng sut nhit, KW Lu lng, kg/h

97 -9000 221124

BI TON: M PHNG THP CHNG CT KH QUYN S LIU BAN UCc thng s thit k v vn hnh ca thp chnhPumparound PA3T a n a Cng sut nhit, KW 16 14 -31000

Pumparound PA4T a n a Cng sut nhit, KW 24 22 -4925

Lu lng, kg/hNp liu Du th a V tr dng hi stripping vo li thp KEROSENE-V LGO-V HGO-V

75868027 7 14 22

Lu lng, kg/h

134995

V TR THU SN PHMNaphtha (full range) KEROSENE-L LGO-L HGO-L Cn (Residue) 1 9 16 24 30

Dng hi nc stripping vo thp a y

BI TON: M PHNG THP CHNG CT KH QUYN S LIU BAN UCc thng s thit k v vn hnh ca cc strippersThp stripping KEROSENE S a Nhit nh, oC Nhit y, oC p sut nh, kg/cm2g 7 209 222 1.6 (bao gm reboiler)

p sut y, kg/cm2gCng sut nhit reboiler, kW Np liu a Thp stripping LGO S a

1.72800 1 Thp stripping HGO 4 S a 4

Nhit nh, oCNhit y, oC p sut nh, kg/cm2g p sut y, kg/cm2g Np liu a Hi nc qu nhit vo a

246239 1.7 1.8 1 4

Nhit nh, oCNhit y, oC p sut nh, kg/cm2g p sut y, kg/cm2g Np liu a Hi nc qu nhit vo a

327320 1.9 2.0 1 4

BI TON: M PHNG THP CHNG CT KH QUYN S LIU BAN UCc tiu chun cn kim tra-

GAP KEROSENE NAPHTHA = TD865%KERO - TD8695%NAPHTHA GAP LGO KEROSENE = TD865%LGO - TD8695%KERO

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OVERLAP HCO LCO = TD865%HGO - TD8695%LGOOVERLAP RESIDUS HCO = TD865%RES - TD8695%HGO OVERFLASH

NHP NGUYN LIU

NHP S LIU CHO THP CHNHp sut Nguyn liu & Sn phm Hi lu tun hon

NHP S LIU CHO THP CHNHRng buc & Bin Side column

KIM TRA TIU CHUN TCH V THP

THP CHNG CT KHI QUYN V H THNG THU HI NHITLP T B SUNG:-

BM NGUYN LIU CC THIT B TRAO I NHIT TRAO I THNG TIN T THP CHNG CT N CC THIT B TRAO I NHIT

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PHN TCH KT QU

THP CHNG CT KHI QUYN V H THNG THU HI NHIT

THP CHNG CT KHI QUYN V H THNG THU HI NHIT