Bai Tieu Luan Nha May Dinh Co 1655

7/31/2019 Bai Tieu Luan Nha May Dinh Co 1655

1/29

TRNG CAO NG CNG NGHIP TUY HOKHOA CNG NGH HO

------------------------------------

BI TIU LUN

ti: Cng ngh ch bin kh trong nh my Dinh C

GVHD : L Th Kim HuynSVTH : Nhm 3

Tuy Ho, Thng 3 Nm 2011


2/29

Danh sch thnh vin nhm 3Lp CHN32B

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Tiu lun hc phn: Cng ngh ch bin kh GVHD: L Th Kim Huyn TH: Nhm 3 Trang 2 / 29

STT H v tn M s sinh vin

1 Dng Vn Dng 0915512081

2 Nguyn Th My 0915512101

3 L Th Thng 0915512126

4

5

6

7

8

9

10

11


3/29


4/29

PHN 1. GII THIU CHUNG V NH MY CH BIN KH DINH C

1.1. V tr:

Nh my ch bin kh Dinh C c xy dng ti th x An Ngi, huyn Long t,

Tnh B Ra Vng Tu, cch Long Hi 6 km v pha bc, cch im tip b ca ng ngdn kh t Bch H khong 10 km. Din tch nh my 89.600 m2 (di 320 m, rng 280m).

1.2. Mc ch chnh ca nh my:

X l, ch bin kh ng hnh thu gom c trong qu trnh khai thc du ti mBch H.

Cung cp kh thng phm lm nhin liu cho cc nh my in B Ra, Ph M, vlm nhin liu cho cc ngnh cng nghip khc.

Thu hi cc sn phm lng c gi tr kinh t cao hn so vi kh ng hnh ban u.

Vic xy dng nh my s tn dng c mt lng ln kh ng hnh b t lng ph ngoi khi v lm tng hiu qu kinh t trong qu trnh s dng n. Hn na kh ng hnhl mt ngun nng lng sch s dng, c gi thnh r v c xem l nhin liu l tng thay th than, ci, du diesel

1.3. Cc ngun cung cp kh cho nh my:

Kh ng hnh t m Bch H (107 km) ngoi khi b bin Vng Tu c vnchuyn qua ng ng 16 ti Long Hi v c x l ti nh my GPP Dinh C thu hiLPG v cc hydrocarbon nng hn. Kh kh sau khi tch hydrocarbon nng c vn chuynti B Ra v Ph M dng lm nhin liu cho nh my in.

Hin nay, do sn lng kh t m Bch H ang gim dn theo thi gian nn nh mys tip nhn kh b sung t cc m khc t khu vc b Cu Long: S T Trng, Rng - iMi, T Gic Trng



5/29

PHN 2. S LC V NH MY KH DINH C (GPP)

2.1. Nguyn l vn hnh

Kh ng hnh c thu gom t m Bch H, c dn vo b theo ng ng 16 vc x l ti nh my kh Dinh C nhm thu hi LPG v cc hydrocarbon nng hn. Phn

kh kh c lm nguyn liu cho nh my in Ph M, B Ra.Nh my c thit k vi cng ngh Turbo-Expander nhm thu hi C3,C4, v

condensate. Cc sn phm lng, kh sau khi ra khi nh my c dn vo theo ba ng ng6 n kho cng sut LPG Th Vi cch Dinh C 28 km.

2.2. Cc giai on thit k nh my

Nhm m bo cho vic vn hnh nh my c linh ng ( phng mt s thit bchnh gp s c).

m bo cho hot ng ca nh my c lien tc khi thc hin bo dng sa cha

thit b thit b khng nh hng n cp kh cho cc h tiu th.Nh my c thit k vn hnh 03 ch khc nhau.

Giai on AMF: bao gm hai thp chng ct, ba thit b trao i nhit, ba bnh tch thu hi khong 340 tn condensate/ngy m t 4,3 triu m 3 kh m/ngy m. Gai onny khng c my nn no c s dng.

Giai on MF: bao gm cc thit b AMF v b sung thm mt thit b chng ct,mt my nn pittng chy kh 800 kW, ba thit b trao i nhit, ba bnh tch thu hi hnhp bupro khong 630 tn/ngy m v condensate khong 380 tn/ngy m.

Giai on GPP: vi y cc thit b nh thit k thu hi 540 tn propan/ngy,415 tn butan/ngy m v 400 tn condensate/ngy m. GPP bao gm cc thit b ca MF

b sung thm: 1 turbo-expander 2200 kW, my nn pittong 2 cp chy kh 1200 kW, 2 thpchng ct, cc thit b trao i nhit, qut lm mt v cc thit b khc.

Theo thit k ban u, nh my ch s dng mt my nn pittong K-01A hi lulng kh nh thp tch etan nhm tng hiu sut thu hi sn phm lng hoc c th a ratrn vi kh kh cung cp cho nh my in, khi phi dng my nn ny bo dnghoc khi gp s c, th ton b lng kh nh thp C-01 s phi b t b rt lng ph v nhhng n mi trng. Do nh my c lp t thm my nn th 2 (K-01B)

Sau khi hon tt ch GPP, ty vo iu kin v hon cnh m vic s dng cc ch c p dng linh hot.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ti: Cng ngh ch bin kh trong nh my Dinh C Trang 5/29


6/29

K t nm 2002, sau khi a vo vn hnh trm nn kh u vo nh my vn hnhtheo ch GPP chuyn i do nh thu Flour Daniel nh gi v thit k li.

2.3. iu kin nguyn liu vo

p sut: 109 bar

Nhit : 25,60C

Lu lng: 5,7 triu m3 kh/ngyHm lng nc: cha nc iu kin vn chuyn cp cho nh my. Hm lng

nc ny s c kh bng thit b kh nc trc khi vo nh my.

Bng 2.3. Thnh phn kh vo nh my

Cu t Phn mol (%) Cu t Phn mol (%)

N2 0,21 C6 0,51

CO2 0,06 C7 0,26

CH4 70,85 C8 0,18

C2 13,41 C9 0,08

C3 7,5 C10 0,03

iC4 1,65 Cyclo C5 0,05nC4 2,37 Cyclo C6 0,04

iC5 0,68 Benzen 0,04

nC5 0,73 H2O 1,3

2.3. SN PHM CA NH MY

2.3.1. KH THNG PHM

Kh thng phm cn gi l kh kh. L kh qua ch bin p ng c tiu chun vn chuyn bng ng ng v tho mn c cc yu cu ca khch hng. Kh kh cthnh phn ch yu l CH4 (khng nh hn 90%) v C2H4. Ngoi ra cn c ln cchydrocacbon nng hn v cc kh khc nh H2, N2, CO2 ty thuc vo iu kin vn hnhm thnh phn kh c th thay i.

Bng 2.3.1a. Thnh phn kh thng phm ca nh my x l kh Dinh C

Lu lng kh 5,7 triu m3 kh/ngy

Thnh phn % mol Thnh phn % mol

N2 0,178 iC5H12 0,0508



7/29

CO2 0,167 nC5H10 0,005

CH4 81,56 C6H14 0,016

C2H6 13,7 C7H16 0,00425

C3H8 3,35 C8+ 0,00125

iC4H10 0,322 Hi nc 0,00822

nC4H10 0,371

Bng 2.3.1b. Cc thng s k thut c trng ca kh kh

Nh my in ni chung

p sut ti thiu, bar Tu theo mi nh my

Nhit 200C trn im sng

Nhit im sng -100C

Nhit im sng ca nc -750C

Tng nhit lng ti a 38,000 KJ/m3

Lng cc tp cht 30 ppm

H2S 20 40 ppm

N2, He, Ar < 2%

2.3.2. KH HA LNG (LPG)

Kh ho lng gi tt l LPG, c thnh phn ch yu l propan v butan c nn li choti khi ho lng (p sut hi bo ha) mt nhit nht nh tn cha v vn chuyn.Khi t th kh chuyn sang th lng th th tch ca n gim 250 ln.

Butan v propan l hai sn phm thu c t s phn tch Bupro.

Thnh phn ca LPG:

Thnh phn ch yu ca LPG l cc cu t C3 v C4 gm c:

Propan (C3H8): 60% mol

Butan (C4H10): 40% mol

Ngoi ra cn cha hm lng nh cu t etan v pentan trong LPG cn cha cc chtto mi mercaptan (R-SH) vi t l nht nh (nh my GPP hin ang s dng 40 ppm) khi r r c th nhn bit bng khu gic. Tt c cc cu t u tn ti th lng, di nhit trung bnh v p sut thng.

i vi LPG ng chai th tu theo iu kin mi trng s dng ca tng vng, tngnc m yu cu cc cu t C3, C4 l khc nhau. V d, i vi nhng vng c kh hu lnh,



8/29

m bo kh nng ha hi khi s dng th yu cu hm lng cu t C3 nhiu hn C4, vnhng nc c kh hu nng th ngc li.

i vi nhu cu cng nghip, cht lng thng c ho hi nh thit b gia nhit bnngoi h tr. Thnh phn ch yu ca LPG vn ch yu l C 3 v C4, nu sn phm l butanth thnh phn C5 chim ti a l 2%. Thnh phn LPG phi m bo kh nng bay hi 95%th tch lng nhit quy nh.

Bng 2.3.2 Cc thng s k thut c trng ca LPG ca nh my ch bin kh Dinh C

Sn phm Propan Butan

p sut hi bo ha 13 bar 37.70C 4.83 bar 37.70C

Hm lng etan Chim ti a 2% th tch Chim ti a 2% th tch

Hm lng propan Chim ti a 96% th tch Chim ti a 2% th tch

Hm lng butan Chim ti a 2% th tch Chim ti a 96% th tch

Butan th lng v th kh u nng hn propan nhng cng mt lng th propan tora mt th tch kh ln hn. Nhit si v p sut hi bo ha cch nhau kh xa.

ha lng propan th cn iu kin: t0 = -45, P = 1bar hoc t0 = 200C, P = 9bar

ha lng butan th cn iu kin: t0 = -20C, P = 1bar hoc t0 = 200C, P = 3bar.

Sn lng LPG t c vn hnh nh my tng ch khc nhau

Bupro

Ch AMF MF GPPLu lng (tn/ngy) 640

p sut (bar) 13Nhit (0C) 47,34

Propan

Ch AMF MF GPPLu lng (tn/ngy) 535T l thu hi (%) 85,2p sut (bar) 18

Nhit (0

C) 45,57% mol C4 cc i 2,5



9/29

Butan

Ch AMF MF GPPLu lng (tn/ngy) 415T l thu hi (%) 92p sut (bar) 9

Nhit (0C) 45

% mol C5 cc i 2,5

2.3.3. Cc sn phm ca condensat

a. Ngun gc chung ca condensat

Condensat cn gi l kh ngng t l hn hp ng th dng lng c mu vng rm. Do cc bn cha condensat c sn mu vng rm. Condensat thu c t ngun kh m. Dicc m du hoc m kh, cc hp cht hu c c s nguyn t cacbon nh hn 17, di tcdng ca nhit , p sut m c th trng thi lng, kh.

Condensat Vit Nam c hai loi

Condensat c tch t bnh lng t ti gin khoan. Kh i ra t bnh tch kh (C1C4) p sut va (3 40bar) v nhit 1030C. Sau kh kh theo ng ng 12 xung y

bin n gin nh BK3 v quay tr li CPP2 vi chiu di 6300m. nhit t 20 250C do kh ng hnh s c gim nhit t 80 900C xung cn 20 250C, do s gim nhit

cho nn condensat s hnh thnh trong ng ng. Khi quay li hn hp hai pha kh lngs a qua van cu joule_thompson. Kh s tt p khong 2bar v nhit s gim 1,50C dohiu ng joule_thompson. Tip hn hp hai pha s c a vo bnh tch th 2, l

bnh tch condensat, phn condensat c tch ra v bm trn vi du th xut khu vkh c a sang dng ng ng a vo b. Tr lng condensate ny khng ln.

Loi 2 l condensate c ngng t trong qu trnh vn chuyn ng ng. giai onth hai ca n s dng kh thin nhin vit nam ng ng vn chuyn 1500 trium3/nm. Kh s m hn do s c nhiu condensate ngng t hn. ng ng vn hnhtheo kiu 2 pha vi p sut 125bar v t0=450C. Ti Dinh C condensate s c thu gom vnhp chung vi condensate t nh my ch bin kh, sn lng condensate ny l 9500

tn/nm.Cc c tnh k thut ca condensate:

p sut hi bo ha (Kpa): 60

C5- : 13%

T trng (Kg/m3): 310

nht (Cp): 0,25647

b. Cc sn phm ch bin t condensat:

Cc loi nhin liu:



10/29

Bng cch pha ch condensat vi reformat c ch s octan cao ng thi cng thm phgia chuyn dng MTBE s c xng thnh phm M83.

Bng cch thc hin qu trnh reformat xc tc hay isome ha, sau pha ch vi phgia s c xng thng phm MOGAS83, MOGAS92.

Bng cch chng ct condensat s thu c thnh phn pha ch xng v du la.

Cc loi dung mi:Dung mi du m l phn on hydrocacbon d bay hi, sn xut trc tip hay gin tip

t du m, bao gm cc hydrocacbon t C4-C10. Cc dung mi ny c s dng rng ritrong qu trnh sn xut cng nghip. Chng c th l thnh phn cu thnh ca sn phmcui cng nh sn xut sn, mc in, cht dnh. Chng c th s dng trong qu trnh trch lynh trong qu trnh tch du thc vt t cc ht cha du, cc cht khong, dc phm hocn gin dng trong dung mi ty ra, trong bo dng. Cc dung mi du m l cht lngtrong sut hoc c mu vng nht, khng ha tan trong nc nhng ha tan rt tt trong ccdung mi hu c. Kh nng ho tan cc cht ca n ty thuc vo thnh phn ha hc v tnhcht phn cc.

Dung mi PI(0F) PF(0F)

Ete du ha 86 140

Dung mi cao su 150 250

Naphta sch 350 450

Dung mi pha sn 420 560

Ngoi cc dung mi trn, cng bng qu trnh chng ct ta thu c cc sn phm khcnh: n-pentan, n-heptan, naphtan nh

Cc sn phm ha du:

Condensat qua qu trinh crakinh hi c th sn xut cc olefin nh Etylen, Butadien, nhng ni khng Etan hay Propan lm nguyn liu th condensat l nguyn liu rt qu sn xut olefin. Condensat qua qu trnh reforming xc tc c th sn xut BTX.

Sn lng condensate thu c khi vn hnh nh my cc ch khc nhau

Ch AMF MF GPP

Lu lng (tn/ngy) 330 380 400Ap sut (bar) 8 8 8

Nhit (0C) 45 45 45% mole C4 cc i 2 2 2



11/29

PHN 3

QUY TRNH CNG NGH SN XUT

CA NH MY CH BIN NH MY DINH C

3.1 Cc thit b chnh ca nh my

3.1.1. Thit b SLUG CATCHER

Thit k ban u:

p sut: 109 bar

Lu lng kh t SC-01/02: 4,3 trm3/ngy.

Lu lng lng v V-03: Tng ng 0,5 triu m3/ngy.

Vn hnh hin ti:

p sut : 70 75 bar.

Lu lng lng t SC-01/02: 4,9 trm3/ngy

Lu lng lng v V-03: Tng ng 0,6 triu m3/ngy.

Theo nh gi ca Fluor Daniel Inc. trong tng lai SC-01/02 vn kh nng tipnhn v x l dng kh m u vo vi lu lng khong 6 triu m3/ngy. Tuy nhin khnng lng b cun theo s tng ln do cn c bit lu n h thng scrubbers ca mynn u vo.

Hn hp kh v condensat t ngoi m vo, c a n Slug Catcher (SC-01, 02)

phn tch Condensat v nc t kh, di p sut vn hnh 109 bar v nhit 25,60C. SCbao gm hai h thng ng, mi h c dung tch 1400 m3. Khi phn tch c gp li ugp 30 v a n thit b ch cng ngh tip theo.

Lng condensat tch ra c gp u gp 36 v s c a i di s iu khinmc (LIC-0111A & B), mc iu khin c chia lm hai mc A (cao), B (thp) bi thit biu khin bng tay HS-0111, 0112. Trong trng hp lng lng ln mc cao H th vanvo s ng, cn mc thp th dng lng s ng tranh hin tng sc kh vo thit bV-03.

Nc t thit b SC n thit b ILIC-0112 &0122 thng qua bnh tch nc v sn phm V-

52 (nc c gim p n p sut kh quyn v hydrocacbon hp ph s c gii phngqua h thng thng gi), nc s c a n Brun pit (ME-52) t, vi vic iu khin



12/29

mc thp th ng dn nc s c ng trnh cc hydrocacbon st vo thit b tchnc V-52.

3.1.2. Thit b bc hi V-03

Thit b bc hi V-03 l thit b bc hi ba pha nm ngang, vn hnh p sut 75bar, nhit 180C. Mc ch ca thit b ny tch hydrocacbon nh hp th trong condensat.

3.1.3 Thp tch ETHAN C-01Thp chng ct C-01 l thit b trong thc hin qu trnh phn tch gia C2 v C3. C2-vmt phn nh C3 s i ra khi nh pha kh, phn ln lng C3+ v mt phn nh C2 ra khiy C-01 dng lng s c a ti thp C-02 phn tch tip thnh LPG v condensate.

3.1.4 Thp n nh C-02 (stabilizer)

Nhit :

nh thp: 56 580C. Nhit dng nhp liu: 650C.

y thp: 125 1300C.

p sut: 11 bar.

Lu lng dng nhp liu: 115 120 m3/h.

Stabilizer c lp t ch MF v GPP nhng cng c th chy n ch AMFd phng. Trong ch AMF thp tch C-01 hot ng nh mt thp n nh bng s bchi ca butan v cc hydrocacbon nh hn ra khi condensat nhit rt cao, ti thit bun si li l 1490C trong trng hp thit b n nh khng hot ng. Nu ngi ta thu hiLPG trong ch AMF th thp tch etan hot ng ng chc nng ca n nhit unsi li thp hn v thit b C-02 c th c s dng.

3.1.5. Thp tch C3/C4 (C-03)

Thit b C-03 c lp t ch GPP nhng cng c th hot ng ch MF v AMFd phng. ch MF ngi ta khng phn tch C3, C4 m sn phm lng l hn hp C3,C4. Tuy nhin nu ngi ta cn tch C3 khi C4 th cng c th chy thit b ny.

3.1.6. GAS STRIPPER C-04

Thit b C-04 ch c lp t ch GPP nn cng nn chy n ch MF sau khihon chnh ch GPP. ch AMF sau khi hon chnh ch GPP, hai my nn alter cth c s dng nhng c th khng dng mt ci. Khi ch AMF, nu kh dng stripping l kh n t nh thp deethaniser khng s dng c. My nn cn li c dng gi lu lng ca condensat n t V-03 trong ch GPP cho d kh stripper khng s dng c.

3.1.7. THP LM SCH C-05

Lu lng theo thit k: 200.000 sm3/hp sut: 33,5 bar.



13/29

Vn hnh hin ti:

Lu lng tng: 245.000 sm3/h

Nhit

nh thp : -45 oC

y thp: -11 -12 oC.

- p sut: 35-37 barA.

- Dng nguyn liu th nht (t E-14 ):

Lu lng : 85.000 90.000 m3/h

Nhit : -60 - 62oC.

- Dng nguyn liu th 2 (t CC-01):

Lu lng: 160.000 -165.000 sm3/h.

Nhit : -11 -15oC.

- Nhit :

nh thp : 10-12 oC.

Nhit dng nhp liu: 65-70 oC.

y thp: 100 oC.

- p sut: 27 barA.

- Lu lng dng nhp liu t V-03: 15.000-20.000 Kg/h.

- Lu lng dng lng t C-05: 130-140 m3/h.

3.1.8. H thng tch nc V-06 A/BThng s thit k:

Lu lng dng: 5 triu m3/ngy.

p sut vn hnh: 109 bar.

Nhit : 30 2300C.

Hm lng nc u vo: hm lng nc bo ho trong kh 109bar v 260

Outlet Dew point: -65 oC.

Chnh p ti a cho php: 80 kpa.Hai thp lm vic song song, thi gian chuyn thp l 8h.

Do c h thng tch nc bng dietthylene glycol t thng ngun ti gin nn trungtm nn chu k lm vic hin nay c th ko di ln 24h. Do nu m rng cng sut dngkh u vo th V-06A/B vn kh nng tip nhn v x l dng kh u vo vi lu lngln hn. Tuy nhin cn phi tnh n kh nng rt ngn chu k lun chuyn thp v tnh ton chnh p qua V-06.

3.1.9. Thit b TURBO EXPANDER

Thng s thit k:Lu lng dng vo u gin n max: 170.000 sm3/h



14/29

p vo/ra u gin: 109/33 bar.

Lu lng u nn: 150.000 sm3/h

p vo/ra u nn: 33/48 bar.

Vn hnh hin ti:

Lu lng dng vo u gin n: 165.000-170.000 sm3/h

p vo/ra u gin: 109/35-38 bar.

Lu lng u nn: 200.000-210.000 sm3/h

p vo/ra u nn: 35-38/48 bar.

Cn c theo thit k cng sut vn hnh ca CC-01 v E-14 t gi tr ti a vkhng c kh nng tng c na.

Thit b gm hai phn chnh: expander v my nn.

Phn expander: gm hai phn, 3 dng kh t V-06 vo expander t 109bar xung33,5bar lm cho nhit dng gim xung n -180C. nhit ny ch yu cchydrocacbon nng (C3+) c ha lng v a n thp C-05 nh ngun np liu.

Phn my nn: khi qu trnh gim p ti turbo expander xy ra th dng kh s c sinhcng lm quay qut gi trong expander, cng c dn qua trc truyn ng dng chymy nn tng p sut ca dng kh ra t nh thp C-05 t 33,5bar ln 47bar.

3.1.10. My nn kh

My nn kh m nh my s dng y l my nn kiu piston v kiu ly tm: my nnK-01 l loi my nn piston mt cp, K-02 v K-03 l loi my nn kiu piston hai cp, mynn K-04 l loi my nn ly tm.

Mc ch ca cm my nn K-01, K-02, K-03 l thu hi trit C 3+ t kh ra ca C-01 nn ln p sut 109bar a li nh my.

3.2. BA CH VN HNH CA NH MY CH BIN KH DINH C

Nh my ch bin kh Dinh C c thit k x l, ch bin vi nng sut 1.5 t m3

kh/nm (khong 4.3 triu m3/ngy). Nguyn liu s dng cho nh my l kh ng hnh tm Bch H, c x l thu LPG v condensat, kh cn li c s dng lm nhin liucho cc nh my in B Ra v Ph M.

Cc thit b x l c thit k vn hnh lin tc trong 24h trong ngy (hot ng 350ngy/nm) v thi gian hot ng ca nh my l 30 nm.

cho vic vn hnh nh my c linh ng, phng mt s thit b chnh ca nhmy b s c, cng nh bo m trong qu trnh bo dng, sa cha cc thit b khng nhhng n vic vn hnh cung cp kh cho cc nh my in m vn m bo thu c mtlng sn phm lng th nh my c lp t v hot ng theo ba ch .

Ch AMF (absolute minimun facility): cm thit b ti thiu tuyt i, ch nyphng thc lm lnh bng EJ (thit b ha dng) cho nn qu trnh lm lnh khng su(200C theo thit k), do sn phm thu c l condensat v kh kh khng tch LPG. Khthng phm vi lu lng 3.7 triu m3 kh/ngy cung cp cho cc nh my in v thu hicondensat vi sn lng 340 tn/ngy.

Ch MF (minimum facility): cm thit b ti thiu thu c ba sn phm l khkh, LPG v condensat. Trong ch phng thc lm lnh l cc thit b trao i nhit nn



15/29

nhit xung thp hn so vi ch AMF do c th ngng t C3, C4 trong kh nn snphm cho ta thm Bupro (hn hp butan v propan). Sn lng condensat l 380 tn/ngy vBupro l 630 tn/ngy.

Ch GPP (gas processing plant): nh my x l kh. y l ch ti u nht,phng thc lm lnh bng Turbo Expander c kh nng lm lnh su hn ch MF.Ngoi ra trong ch ny cn c th tch ring butan v propan, sn lng propan 540

tn/ngy, butan l 415 tn/ngy, condensat l 400 tn/ngy.

3.2.1. CH AMF

3.2.1.1. Mc ch :

Ch AMF c kh nng a nh my sm i vo hot ng nhm cung cp khthng phm vi lu lng 3,7 triu m3/ngy cho cc nh my in v thu hi condensat visn lng 340 tn/ngy. y ng thi cng l ch d phng cho ch MF, khi cc thit

b trong ch MF, GPP xy ra s c hoc cn sa cha, bo dng m khng c thit b dphng.

3.2.1.2. Cc thit b chnh

y l ch nh my cm thit b ti thiu tuyt i. N ch bao gm cc thit b

chnh sau:

Hai thp chng ct C-01, C-05.

Ba bnh tch V-06, V-08, V-15.

My nn Jet Compresser EJ-01 A/B.

Bn cha Condensat TK-21,

3.2.1.3. M t ch vn hnh AMF

Kh ng hnh t m Bch H c a ti Slug Catcher ca nh my bng ng ng16 vi p sut 109 bar, nhit 25,60C. Ti y, condensat v kh c tch ra theo ccng ring bit tip tc x l, cn nc cha trong condensat cng c tch nh trnglc v a vo bnh tch nc (V-52) x l. y nc c gim p ti p sut khquyn v hydrocacbon b hp th s c gii phng a vo t h thng ct uc. Ncsau c a ti hm t (ME-52).

Dng lng i ra t Slug Catcher s c gim p v a vo bnh tch V-03 hot ng

75 bar v c duy tr nhit 200C. V-03 dng tch hydrocacbon nh hp th tronglng bng cch gim p. Vi vic gim p t 109 bar xung 75 bar, nhit s gim thp hn



16/29

nhit hnh thnh hydrate nn trnh hin tng ny bnh c gia nhit n 20 0C bngdu nng thit b E-07. Sau khi ra khi V-03 dng lng ny c trao i nhit ti thit bE-04A/B tn dng nhit.

Dng kh thot ra t Slug Catcher c dn vo bnh tch/lc V-08 nhm tch trit cc ht lng nh b cun theo dng kh do SC khng tch c v lc cc ht bi trong kh(nu c) trnh lm h hng cc thit b ch bin kh pha sau.

Kh t u ra ca V-08 c a vo thit b ha dng EJ-01A/B/C gim p sut t109 Bar xung 47 Bar. Vic gim p ca kh trong EJ c tc dng ht kh t nh thp C-01. u ra ca EJ-01A/B/C l dng hai pha c p sut 47 bar v nhit 20 0C cng vi dngkh nh t V-03 gim p c a vo thp C-05. Mc ch ca EJ-01A/B/C l nn khthot ra t nh thp C-01 ln p sut lm vic ca thp C-05, v vy n gi p sut lm vicca thp C-01 n nh.

Thp C-05 hot ng p sut 47 bar, nhit 200C. Phn nh ca thp hot ng nhb tch kh lng. Thp C-05 c nhim v tch phn lng ngng t do s st p ca kh t 109bar xung 47 bar khi qua EJ-01A/B/C. Dng kh ra t nh thp C-05 c a ra ng khthng phm cung cp cho cc nh my in. Lng ti y C-05 c a vo a trncng ca thp C-01.

ch AMF thp C-01 c 2 dng nhp liu:

Dng t V-03 vo a th 14 ca thp C-01.

Dng lng t y ca thp C-05 vo a trn cng ca thp C-01.

p sut hi ca condensat c gim i v c iu chnh trong thp C-01 nhm mcch ph hp cho vic cha trong bn cha ngoi tri. Vi ngha trong ch AMF thpC-01 hot ng nh l thp n nh condensat. Trong , phn ln hydrocacbon nh hnButan c tch ra khi Condensat bi thit b gia nhit ca y C-01 l E-01A/B n 1940C.Kh ra nh thp c nhit 640C c trn vi kh nguyn liu nh EJ-01A/B/C. DngCondensat y thp c trao i nhit ti E-04A/B v c lm lnh bng khng kh E-09 gim nhit xung 450C trc khi ra ng ng dn Condensat v kho cng hoccha vo bn cha TK-21.



17/29


C-05

Kh ng hnh

V-08

Kh thng phm

E-07 V-03

Nc

E-04Condensate

V-15E-01A/B Du nng

S m t ch cng ngh AMF

K hiu:C : thp tch phnonSC slug catcherV bnh chaE - thit b trao inhitME - thit b o m

SC

E-09

TK-21

Du nng


18/29

3.2.2. CH MF

3.2.2.1. Mc ch.

Trong ch vn hnh MF, sn phm ca nh my ngoi lng kh thng phm cungcp cho cc nh my in, cn thu c lng Condensat l 380 tn/ngy v lng Bupro l630 tn/ngy.

3.2.2.2. Cc thit b chnh.y l ch hot ng trung gian ca nh my. MF l ch ci tin ca ch

AMF. Nn ch ny nh my bao gm ton b cc thit b ca ch AMF (tr EJ-A/B/C) cng thm cc thit b chnh sau :

Thp n nh Condensat C-02

Cc thit b trao i nhit : E-14, E-20

Thit b hp th V-06A/B

My nn K-01, K-04A/B

3.2.2.3. M t ch vn hnh MF

Dng kh t Slug Catcher c a n bnh tch lc V-08, y l thit b c thit k tch nc, hydrocacbon lng, du v lc cc ht rn. Mc ch ca V-08 l bo v lp chthp th trong V-06A/B khi b hng hoc gim tc dng v gim tui th ca chng. Sau khic loi nc ti V-06A/B dng kh c a ng thi n hai thit b E-14 v E-20 lm lnh. Dng kh sau khi ra khi E -14 v E-20 l dng hai pha lng kh c a vo thpC-05 tch lng. Kh ra ti nh thp C-05 lm tc nhn lnh bc 1 cho dng nguyn liu tiE-14 (nhit gim t 26,50C xung -170C) trc khi lm lnh bc hai ti van gin n, dngkh thng phm ra t nh C-05 ny sau khi qua E-14 nhit c tng ln iu kincung cp cho cc nh my in.

Hai thp hp th V-06A/B c s dng lun phin, khi thp ny lm vic th thp kiati sinh. Qu trnh ti sinh c thc hin nh s cung cp nhit ca mt phn dng khthng phm c gia nhit n 2200C bng dng du nng ti E-18, dng kh ny sau khi rakhi thit b V-06A/B s c lm ngui ti E-15 v c tch lng V-07 trc khi rang kh thng phm.

S dng lng trong ch MF ging nh trong ch AMF, ngoi tr vic a kht V-03 n C-01 thay v n C-05 nh ch AMF. Ngoi ra trong ch MF, thp C-02c a vo thu hi Bupro.

Nhm tn thu bupro v tch mt t metan, etan cn li, dng kh t V-03 c a nthp C-01 tch trit lng metan, etan.

Dng lng t thit b V-03 c a n thp C-01 sau khi c gia nhit t 200C ln800C ti thit b E-04A/B nh dng lng ra t thp n nh C-02.

C 3 dng nguyn liu c a n thp C-01:

Dng kh n t V-03 vo gia a th 2 v 3 ca thp C-01

Dng lng t V-03 vo a th 20 ca thp C-01

Dng lng n t y C-05 vo a trn cng ca thp C-01



19/29

Ti y cc hydrocacbon nh nh C1, C2 c tch ra v i ln nh thp, sau nc nn t 25 bar ln 47 bar nh my nn K-01 trc khi c dn qua ng dn khthng phm.

Phn lng ra t y thp C-01 c a n thp C-02.

Thp C-02 lm vic p sut 11 bar, nhit nh 600C v nhit y 1540C. Tiy C5+ c tch ra y thp, sau chng c dn qua thit b trao i nhit E-04A/B gia nhit cho dng lng ra t y V-03. Sau khi ra khi E-04A/B lng lng ny c an lm lnh ti thit b trao i nhit bng khng kh E-09 trc khi a ra ng ng hocra bn cha condensat TK-21.

Phn hi ra khi nh thp C-02 l Bupro, hi Bupro c ngng t ti E-02, mt phnc cho hi lu tr li C-02 m bo phn tch ca sn phm, phn cn li theong ng dn sn phm Bupro.



20/29


Kh ng hnh

V-08V-06

E-15

E-18

SC

V-07 K-04

F-01

E-20

V-12K-01

E-04

E-01A/BV-15

E-02V-02

P-01A/B

E-03

E-09

E-07V-03

Nc

SP condensate

Bupro

Bupro

Khthng phm

C-05

C-01 C-02

S m t ch cng ngh MF

K hiu:C thp tch phn onV - thit b tchSC slug catcherE - thit b trao i nhitK my nnP bm

Du nngDu nng

E-14

TK-21

V-21A

V-21B


21/29

3.2.3. CH GPP

3.2.3.1. Mc ch.

Trong ch vn hnh ny sn phm thu c ca nh my bao gm: khong 3,34 trium3 kh/ngy cung cp cho cc nh my in, Propan khong 540 tn/ngy, Butan khong415 tn/ngy v lng Condensat khong 400 tn/ngy.

3.2.3.2. Cc thit b chnh.

y l ch hon thin ca nh my ch bin kh. Ch ny bao gm cc thit bca ch MF v cng thm mt s cc thit b chnh sau:

Mt thp tch C3/C4 : C-03

Mt thp Stripper : C-04

Hai my nn K-02, K-03

Thit b Turbo expander: CC-01

Cc thit b trao i nhit: E-17, E-11

3.2.4. M t ch vn hnh GPP.

Kh t ngoi khi vo nh my c tip nhn u tin ti Slug Catcher (SC-01/02), y dng nguyn liu l dng hai pha c nhit 25,6oC v p sut 109 bar c tch ringra x l tip theo.

Dng kh t Slug Catcher qua V-08 tch nt phn lng cn li, lng lng tch rany c a n bnh tch V-03 x l, cn dng kh tch ra t V-08 s i vo V-06A/B tch tch nc.

Do ch ny thit b Turbo Expander c a vo hot ng thay th E-20 trongch MF, nn khong 2/3 lng kh ra khi V-06A/B c chuyn ti phn gin n cathit b CC-01, ti kh c gin t 109 bar xung 33,5 bar v nhit cng gim xung-18oC, sau dng kh ny s c a vo thp tinh lc C-05.

Phn kh cn li khong 1/3 dng t V-06A/B c a ti thit b trao i nhit E-14 lm lnh dng kh t 26oC xung - 35oC bi dng kh lnh t nh thp C-05 c nhit 42.5oC. p sut ca dng sau c gim t 109 bar xung 33,5 bar nh van gim p FV-1001. Sau qu trnh gin n on nhit ny, nhit gim xung n -62 oC. Dng ny ca vo nh ca thp tinh lc C-05 nh mt dng hi lu ngoi nh thp.

Trong ch GPP, thp C-05 lm vic p sut 33,5 bar, nhit nh -42.5 oC vnhit y -20oC. Kh ra khi nh thp C-05 c nhit -42.5oC c s dng lm lnhkh u vo thng qua thit b trao i nhit E-14 trc khi c nn ra dng kh thng

phm bng phn nn ca CC-01.



22/29

Qu trnh thu hi lng trong ch ny c khc bit so vi ch AMF v ch MFdo s c mt ca thp C-04 v cc my nn K-02, K-03. Kh thot ra t nh thp C-01 cmy nn K-01 nn t 29 bar ln 47 bar ri tip tc c lm lnh trong thit b trao i nhitE-08 vi tc nhn lnh l dng lng ra t V-03 c nhit l 20oC v c hai dng ny vothp C-04 tch nc v hydrocacbon nh ln trong dng lng n t V-03.

Thp C-04 lm vic p sut 47,5bar, nhit nh v y ln lt l 44 oC v 40oC.Kh sau khi ra khi thit b C-04 c nn tip ti p sut 75 bar bng my nn K-02 ric lm lnh bng thit b trao i nhit bng khng kh E-19. Lng kh ny c trn lnvi lng kh thot ra t V-03, c nn tip ti 109 bar bng my nn K-03, chng tip tcc lm lnh v nhp vo dng kh nguyn liu trc V-08.

Phn lng i ra t y thp C-04 c a n a th 14 ca thp C-01 v dng lngi ra t thp C-05 c a n a th nht ca thp C-01 ng vai tr nh dng hi lungoi nh thp.

Trong ch ny, thp C-01 lm vic p sut 29 bar, nhit nh 14 oC v nhit y 109oC. Sn phm y ca thp C-01 c thnh phn ch yu l C3+ s c a n thpC-02 (p sut lm vic ca thp C-02 l 11 bar, nhit nh 55 oC v nhit y 134oC) tch ring condeasat v Bupro.

Sn phm nh ca thp C-02 l bupro c tin hnh ngng t hon ton nhit 43oC trong thit b ngng t bng khng kh E-02, sau c a ti bnh hi lu V-02 cdng nm ngang. Mt phn Bupro c bm tr li thp C-02 hi lu bng bm P-01A/B,p sut ca bm c th b p c s chnh p sut lm vic ca thp C-02 (11bar) v thpC-03 (16 bar). Phn bupro cn li c gia nhit n 60 oC trong thit b gia nhit E-17 trckhi cp cho thp C-03 bng dng lng nng t y thp C-03. Sn phm y ca thp C-02chnh l condensat thng phm c a ra bn cha hoc dn ra ng ng vn chuyncondensat v kho cng Th Vi.

Nh ni trn dng nguyn liu vo thp C-03 l Bupro, ti y chng c tchring ra. Sn phm nh thp C-03 l hi Propan c ngng t hon ton nhit 46oCnh thit b trao i nhit bng khng kh E-11 c lp ti nh C-03 v c a ti thit

b cha hi lu V-05 c dng nm ngang. Phn propan lng ny c bm bng cc mybm, mt phn propan thng phm c tch ra bng thit b iu khin mc v chngc a ti ng ng dn propan hoc b cha propan V-21A. Phn cn li c a trli thp C-03 nh mt dng hi lu ngoi nh thp.

Ti y thp C-03, thit b trao i nhit bng du nng E-10 c lp t c tc dngnh ni ti un gia nhit cho dng butan n 97oC. Nhit ca n c iu khin bivan TV-2123 t trn ng dn du nng. Mt phn dng butan c hi lu li thp C-03,

phn cn li c a ra bn cha hoc a n kho cng Th Vi sau khi c gim nhit n 60oC bng thit b trao i nhit E-17 v n 45oC bng thit b trao i nhit E-12.



23/29


V-05

E-10

C-03

E-11

P-03

S CNG NGH CH GPP

kh ng hnh

V-06

E-15

E-18

E-13

E-19

E-09

E-12

F-01 CC-01

E-02

E-01 E-03E-04

E-14

V-07K-04

SC-01

K-01

K-02K-03

C-05

C-04C-01

C-02

E-08

E-07

nc

V-14 V-13

V-12

V-15

V-02

E-17

P-01

SP codensate

SP Butan

SP Propan

K hiu:C thp tch phnon.V bnh cha.SC slug catcher.E - thit b trao inhit.CC Turbo expander.K my nn.P bm.Kh thng phm

V-08

TK-21

V-21B

V-21A


24/29

3.3 CH VN HNH HIN TI CA NH MY (GPP CHUYN I)

Nh my x l kh Dinh C c thit k s dng ngun nguyn liu l kh ng

hnh m Bch H vi lu lng u vo l 4,3 triu m3/ngy v p sut kh u vo l 109

bar. Tuy nhin, t cui nm 2001, lng kh vn chuyn theo ng ng dn kh Bch H

Dinh C tng t 4,3 triu m3/ngy ln 5,7 triu m3/ngy do c thm ng ng dn kh t m

Rng ng ni vo. Nh vy, lng kh tip nhn nh my x l kh Dinh C s tng thm

khong 1 triu m3/ngy. Vic tng lu lng kh dn vo b gy nn s st p ng k trn

ng ng dn kh vo b v p sut ti u tip nhn kh ca nh my gim t 109 bar

xung khong t 60 80 bar. p sut kh u vo thp s lm gim kh nng ngng t ca

cc cu t nng dn ti gim kh nng thu hi sn phm lng ca nh my, ng thi lm

gim p sut ca dng kh kh cung cp cho nh my in.

khc phc vn ny, nh my tin hnh lp t thm trm nn kh u vo

nn kh u vo ln p sut 109 bar theo ng thit k ban u.

Trm nn kh u vo ca nh my x l kh Dinh C gm 4 my nn kh K-

1011A/B/C/D: 3 my hot v 1 my d phng to s linh ng v cng sut vn hnh v

cng sut d phng.

3.3.1. M t ch GPP chuyn i.

Cc thit b ch ny gm ton b cc thit b ca ch GPP v thm trm nn kh

u vo K-1011A/B/C/D v bnh tch V-101.

Kh ng hnh t m Bch H vi lu lng 6 triu m 3 kh/ngy i vo h thng Slug

Catcher tch Condensat v nc trong iu kin p sut 65 80 bar nhit 25 n 300

Ctu theo nhit mi trng. Tip theo hn hp kh c chia thnh hai dng: Dng th

nht khong 1 triu m3/ngy c a qua van gim p PV-106 gim p sut t 65-80 bar

n p sut 54 bar v i vo thit b tch lng V-101. Lng c tch ra ti y bnh V-101

c a vo thit b V-03 ch bin su. Kh i ra t bnh tch V-101 c a vo h

thng ng ng dn kh thng phm 16 cung cp cho cc nh my in.

Dng kh chnh khong 5 triu m3

kh/ngy c a vo trm nn kh u vo K-1011A/B/C/D (3 my hot ng 1 my d phng) nn dng kh t 65-80 bar ln 109 bar sau



25/29

qua thit b lm ngui bng khng kh E-1011 lm ngui dng kh ra khi my nn n

nhit khong 400C. Dng kh ny i vo thit b tch lc V-08 tch lng lng cn li

trong kh v lc bi bn. Sau c a vo thit b hp th V-06A/B tch trit nc

nhm trnh hin tng to thnh hydrate trong qu trnh lm lnh su.

Dng kh ra khi thit b V-06A/B c tch thnh hai dng:

Khong mt phn ba dng kh ban u qua thit b trao i nhit E-14 h nhit

t 26,5oC xung - 35o C vi tc nhn lnh l dng kh kh n t nh thp C-05 vi nhit

l - 45oC. Tip theo dng kh nng ra khi E-14 c lm lnh su bng cch gim p qua

van FV-1001. Ap sut gim t 109 bar xung 37 bar (bng p sut lm vic ca nh thp C-

05) ko theo nhit gim xung -620C v c a vo a trn cng ca thp tinh ct C-

05, ng vai tr nh dng hi lu ngoi nh thp.

Hai phn ba dng kh cn li c a vo thit b CC-01 thc hin vic gim p

t 109 bar xung 37 bar v nhit gim xung -12oC.

Dng kh lnh ny sau tip tc a vo y ca thp tinh ct C-05. Thp tinh ct C-

05 hot ng p sut 37 bar, nhit nh thp v y thp tng ng l -45oC v -15oC,

ti y kh (ch yu l metan v etan) c tch ra ti nh thp C-05. Thnh phn lng chyu l Propan v cc cu t nng hn c tch ta ti y thp.

Hn hp kh ra t nh ca thp tinh ct c nhit -45oC c s dng lm tc nhn

lnh cho thit b trao i nhit E-14 v sau c nn ti p sut 54 bar trong phn nn ca

thit b CC-01. Hn hp kh i ra t thit b ny l kh thng phm c a vo h thng

ng ng 16 n cc nh my in.

Hn hp lng i ra t y thp tinh ct c a vo nh thp C-01 nh dng hi lu

ngoi.

Thp C-01, hot ng p sut 27,5bar v nhit y thp l 1090C. Ti thp C-01,

cc hydrocacbon nh nh metan, etan c tch ra t hn hp ri i ln nh thp vo bnh

tch V-12 tch lng c trong kh, sau c my nn K-01 nn t p sut 27,5 bar ln p

sut 47,5 bar. Hn hp kh t my nn K-01 tip tc c i vo E 08 sau vo thp C-04(hin nay cc thit b ny khng hot ng do bnh tch V-03 phi gim p vn hnh t 75



26/29

bar theo thit k xung cn 47 bar m bo ch bin c lng lng t V-101. Do

lng lng t y bnh tch V-03 c a trc tip qua E-04A/B m khng i vo thit b

trao i nhit E-08 nh thit k). Kh sau c nn n 75 bar nh my nn K-02 ri li

tip tc a vo thit b trao i nhit E-19 bng vic s dng dng tc nhn lnh l khng

kh. Dng kh t E-19 c a vo my nn K-03 nn ti p sut 109 bar ri lm lnh

trong thit b trao i nhit E-13, dng kh ny sau c a ti thit b V-08 nh l

nguyn liu u vo.

Thp tch etan C-01 l thit b tch dng thp loi a van, hot ng nh mt thit b

chng ct.

Dng lng i ra t y ca thp C-01 tip tc c a qua bnh n nh V-15 sau

ti thp C-02.

Ti thp C-02 vi p sut hot ng l 10,2 bar, nhit y thp c duy tr 1350C

nh Reboiler E-03, nhit nh thp 560C, bupro c tch ra nh thp, cn Condensat

c tch ra y thp. Bupro t nh thp C-02 c a vo thit b lm lnh E-02, sau

c a vo bnh tch V-02. Dng lng t bnh tch V-02 c bm P-01A/B bm hi lu

1 phn ti nh thp v phn cn li theo ng ng dn sn phm bupro n bn cha V-21

A/B hoc n kho cng Th Vi. Phn lng ti y thp C-02 l Condensat c h nhit

xung 600C nh thit b trao i nhit E-04 A/B v xung 450C nh thit b E-09 v sau

c a ti bn cha Condensat TK-21 hoc ng ng dn Condensat ti kho cng Th

Vi.

Condensat (sau khi tch nc ti Slug Catcher) c tch ra trong Slug Catcher c

a vo thit b V-03 hot ng p sut 47 bar v nhit 200C tch cc cu t kh nh

b hp th trong hn hp lng ny bng cch gin n v gim p. T thit b V-03,

Condensat c dn ti thit b trao i nhit E-04 ( tn dng nhit nng t y Reboiller

E-03) sau i vo a th 20 ca thp C-01.



27/29


propan

Kh onghanh

S cng ngh ch GPP chuyn i

SC-01/02

E-07 V-03

V-08

K-1011A/B/C/D

E-1015A/B/C/D

V-101

V-06A/B

E-14

C-05

CC-01

C-01

E-01A/B

V-15

E-04

E-09

Khthngphm

SP Condensate

V-12

K-01K-03

C-02P-01A/B E-17

E-02

V-02

E-03

C-03

E-10

E-11

V-05

P-03A/B

E-12

K hiu:C thp tch phnon.V bnh cha.SC slug catcher.E - thit b trao inhit.CC TurboExpander.K my nn.P bm.

K-02

V-21A

V-21B

TK-21


28/29



29/29

KT LUNTrong qu trnh lm tiu lun v cng ngh ch bin kh trong nh my Dinh C,

chng ti phn no lm r v cng ngh ch bin kh ca nh my x l kh Dinh

C.

Cng trong qu trnh lm tiu lun. Chng ti phn no hiu c nguyn l

vn hnh ca nh my. Nhn thy rng vai tr ca nh my x l kh Dinh C, tm

quan trng ca vic pht trin nng lng kh ni ring.

V khng c thc t nh my, cho nn nhng hiu bit, tm hiu v nh my

khng th nm bt bit c. Tuy nhin, qua bi tiu lun ny, gip nhm chng ti

hiu bit c quy trnh, v nh my nhiu hn. Gip chng ti cng cng c thm

c vn kin thc ca mnh.

Cui cng chng ti xin cm n c L Th Kim Huyn gip chng ti honthanh bi tiu lun ny.

Bai Tieu Luan Nha May Dinh Co 1655

Documents

Transcript of Bai Tieu Luan Nha May Dinh Co 1655