RCC-FCC-HDC

8/3/2019 RCC-FCC-HDC

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QU TRNH REFORMING XC TC (RC) Gi

Cng nghng nguyn linh cnh chth tiu chu ty cng cao. Cng nghhydro-dehydro ha do kim lon chng l gama oxyt nhm g- somer ho, vng ha, hydrocracking).

V cng nghivn cng ngh ra thay th cng ngh reforming nhiCng ngh reforming xc tc vnghiy rkhng cao nn qu trnh reforming ph thvo kho-1, nhinh cao vo khoy, ccphnh ph p

su gi nh t th c xc tc khng di. V th nh ny khng Trong th h thu htoluene smy bay, t v toluene gilcng cao, nhu c cao tr n c ng UOP (M reforming xc tc (qu trnhPlatforming) v Pt trn chxc tc cao. Qu trnh nh - dn cnh ny cn c tn gSemi-Rgnratif (SRRC). C thOP l d ng ki T- 1960 c rnh reforming xc tc ch xc tc mginh cn 30 bar. Mm kim lonh xc tc. Tnh n


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n phm vinh sng bikhng cm vin bnh Power Former). Xc tc haichc kim lo t gp ph nhc n 10 bar.

nh reforminnh c ti sinh lin t ti ccn tthi bng. Qu trnh ny qu trnh ti sinh lin t-Continuous Catalyst Regeneration,RRC-Rgnratif). Nhn t nhm hi nh Platforming ti sinh xc tc lin tth thing van, hosuy cho php ph tnh xctc ch kh hydro.

Ngy nay, qu trnh CCR vu thm vinh reforming xc tc m qu trnh CCR.Cc hng nh ny l UOP v IFP, c 139 nhmy v IFP c 48 nh my CCR.

Sau mi pht tri thikh naphtha nhnh cc coctane cao cho php pha tr cc s nh m kh ho l vu th trn kh bn trn thnhdo sy m c troctane qu th New Reforming. Xc tc sUOP l zeolit, xc tc ny c tnh chnh hnh vng ho. Tnh chlnh hm h

trung gian v cho sng. So vnh thnh New Reforming ttrn xc tcnhi dtrng BP v UOP tnh Cyclar vn li LPG v xy dn cng/ngy. Hng Chiyoda v Mitsubishi pht trinh Z-ng v chn kbing suvm vi m thibn xc tc khi ti sinh, qu trnh ti sinh


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Hiu chum ngtetraetyl ch, tuy lm tchn 15-20 skhn ghi c mcn tMn, Fe c thkim loy cn gy nhim sng t nhitnh chny cho ch lnhi.u quan tr p su o ha (RVP- hydrocacbon, c Chu quan tr my lChy thuo ch d chm gi tri trung bnh gi

nghin c ch ON+MON)/2. m yC th-80ooctan bnh duy nh -nh cc isoparafin, lmoC ) giu parafin vnaphten c thnh cc hydrocacbonnh reforming xc tc.Reforming xc tc l qu trnh l nh chFCC, hidrocracking, visbreaking, c ch-50) thnh h

s-104).V qu trnh chuy-parafin v naphten c m ch lm cho xtrong snh phThnh phn th- : 35% t.t- ming xc tc : 30% t.t- : 20% t.t- : 15% t.t


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Tn cho thphreformirng c ph

Phn bnh phM- Thnh ph 190C- T 0,78- Ch 94 103 (tuDo v nh ph hi my ln tht mc. Cng

su my ln ttNgoi ra, reforming cn cung cn liu v cung c2 choqu trnh x chuy2 trong nh my l


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II.Nguyn linh RC:

Mnh RC l chuy naphthenenh aromatic c trch ha hi ra cncho php nh2

Nguyn li s2.1 Nguyn linh

Xu : nh Visbreaking,Thnh ph: H7 11 my khng5 11)Tnh ch:- Kho-180C- T-0.8 g/cm3- Trnh: 100-110- RON: 40-60Thnh ph:- Paraffin : 40-60 wt%- Olefin : 0 wt%- Naphtene : 20-30 wt%- Aromatic : 10-15 wt%

Hm : Xc tc rn licm sn ling cc cng nghm sGin lim s- S < 1ppm- N (h- H2O (v cc h- Kim lo- Olefin v cc diolefin = 0- Halogen (F)

- Metals (Pb, As, Sb, Cu...) < 1ppbVn t180onhqu trnh reforming. Nhhom nguyn lilonh benzen l mi, ctiu chuGin li- 180C. Gisi cu n li n cao qu 180oC v x lC. M gicunh ph-50% reformat) theo tiu chu


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205C. Ngoi ra nn litnh crocacbon nm gii mnli v phchii m cng cao) th qu trnh dehydro vngho cng thun mng dy hnh hng, vnhing ha parafin thnh h chnguyn ling giu parafin cng kh chuynh reformat so vnliu naphten. C thchuynh sau:

V v (v dnguyn lii hcnh).Trong cng nghin lithnh so gi trN+2A (N, A - % trn liy cng cao th khcng lnh vnh cng gintrong kho- 80.Hng UOP (Mra hsau: KUOP = 12,6 (N+2A)/100. V vichn li gi quan trt - 145C. N


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-85C. Thu toluen ch-120C. Thu xylen ch120-145C. Thnh ph tnh chn li

Naphta trungbnh t

hydrocracking

Naphta Trung

Naphta giuparafin (

r

Naphtagiu naphten

(Nigeria)

ASDTM D86,CIBP10%30%50%70%90%FBP

98115127140157180201

81105113119129143166

92106115123132147155

88107115123132145161

Thnh phV

ParafinNaphten

AromaticN+2ARONd415

33551279620,775

45451065550,754

66,821,811,444,6500,716

29,361,98,879,6660,779

Trong cng nghin li nguyn li hC thn liCho nguyn li phlo hcc qu trnh xng hidro).- n licracking cm giaim no ha olefin nh- Tin li2- Trong nhiisomer C5/C6) ra khng cho reforming xc tc).


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2.2.Snh RC:

C thn li snh reforming

xc tc theo gi

tinh reforming xc- 5+ ) : 80 - 92%- C4 : 3 - 11%- C3 : 2 - 9%- Kh nhin li1-C2 : 2 - 4%- Hidro : 1,5 - 3,5 %

- m ch benzen, toluen, xylen (BTX) v kh hydro k

a. S:M- Thnh ph190oC- T 0,78- Ch 103- Thnh ph aromatic v paraffin, naphten chDo c chnh phtnh l

dSnh ph tnh ch trong cc giu trn phthuo nguyn liV dn linhby trn bSo snh Nguyn li S

d415 ASTMD86 Thnhphn,%V

RON

IBP 10 50 90

FBP P N A N+2A

Nguynliu 0,754 81 105 119 143 166 45 45 10 65 55Snphm

C5+ 0,701 60 93 118 152 185 40 5 55 115 95

Thnh phtrong nguyn liNn b my lo ha thChnh v v


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b. Kh hydro knh trong kh chi 90%. Thnh phn linghy mlnh reforming, cn phcc qu trnh lm sb nh chuy 120 Nm3/m3 nguyn li c thm sVinh reforming nhth cm strinh s

c. Kh ho lKh ha ly butan. Hio tnh ch s smgia s reformat.

d. SQu trnh reforming cn cung cn li- toluen-xylen)cho ha dnh ny chi-75% trong tph xc tc hi paraxylen- nguyn lisu nhn tn li

III.Cc y:Cc ynh reforming bao gn lin li

3.1

Trong cng nghico thin li

Nhi

c

Phn li B tr ha xc tc (gi B tr


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Nhinh sm giNhi-540oC.

3.2 T

ng nguyn liqua trong 1gi

n lini cch khc l lm gi xc tc. H lm gi giy c ccqu trnh c tng tsy c th trnhi ph cc scn t o cc l ph h phC thn trong vn nh -1. Vnh tT hnh, tn linh phn limong muh-2,5 h-1.

3.3 p sunh :

Cc phcng th hidro cng cao. Tuy nhin ng trtr thch hnh tt

p su gi trta ln chy nay nhting nghn t cm hm viu su RON cao) m ngc thnh qu trnh vu cs phCng nghn ti -Sn/Al2O3cho php vnh -i ch

3.4 Tn li


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nlim mn ch-90% tl) nhmgin bnh hydro ha cc hchhng no trung gian l ti(1-10). Giu c p suring phh ph tnh kinh tnh. Thay sgim gingph

ch

IV.Xc tc snh Reforming:

nh phc th

- Ch-phn tn.

- Chng ng ll

Ch chnh, gip hnh thnh cc hhhydrocacbon khng no v dehydro ho cc naphten. Cgi


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qu axt sm gi- n lun

nh reformingv

Nghin c ng ha cchydrocacbon ring r-phn g cc ch lm tdehydro ha v dehydro vng ha (nh ng p sukim so v

ng p su quan trt hydro phn (hydrogenolysis) tm gi

4.1.nh dehydro ha Cyclohexan


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Trong s -Sn v Pt-Re tm vi vhong ha cao. Ring h-bi ng p su yt v cc h dehydrovng ha.

Nn 70 ch ln t c2 kim lo h Re(Renium) v Sn (Thi

c tc db tuu kho


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Cn Sn th l nh (< 5 atm). Tuy nhin loy km bxc tc ch

V Sntrong cng nghn t

C th mng xc tc tn tun thgi

UOP (M Bn ti sinh: R-56, R-62, R-72

Ti sinh lin t-132, R-134

IFP (Php) Bn ti sinh: RG-102, RG-104, RG- 482

CCR: CR- 201

Criterion (M Bn ti sinh: PR- 8, PR- 28

CCR: PS- 20, PS- 40

Exxon KX-120, KX-130, KX-190, KX-200

Amoco PHF-5, PRHP-30, PRHP-35, PRHP-50, PRHP-58

Engelhard (M RD- 150, E- 501, E- 601

IMP (Mexico) RNA- 1, RNA- 2, RNA- 4, RNA- 4M Lin x (c - - 64,

KP-108, KP-110

V. S:

5.1


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Cc chn li kh tuhon (H2, N2). thu khng thungh sau khi chpxnh ti sinh xc tc), b tnh chl b tnh chl

5.2.Cc ch

cc hTc d m gicm gi ldng t c. vinh vnh lcn gy n thicho qua cc cnguyn li 4 ppm.

Hh ng chuynhnh thnh sulfua platin:

Pt + H2SPt S + H2

T ng ha b

Trong s mecaptan (R-S-H) v H2S c m gi chkh ch2S c tnh axit nn cn gy n thim

Cc hng chuynh amoniacy sl trong xc tc t4Cl, lmgihnh thnh hydro. NH4Cl lM4Cl da h


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Cc cha. Cc kim lo kim trung ha tnh axit c2O3), tthnh hb. Cc kim lon kvm m hydo-dehydro ho cy cn tch t phm ginhing ph 5 ppb). hicng ngh phn linh khng thu n, nh trong n li n sovn li

VI.

Trong qu trnh lm vin b l, chng ta cng cnhho sng trnh reforming). Vph lm gi tm ho

o cn bnh ti sinh Qu trnh ny c thnh bg php sau:

- Cn b ng khng kh pha long v


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500oC. cm ginh thiu km gikim loChu knh hkhohng m ha v giti sinh xc tc smi gian tQu trnh nh sau : CnHm + O2 2 +H2O + Qnh tthioy c nhim gitch b c th2O3, nhim xra qu trnh thiu km giTrong cng nghn t) qu trnh oxy ha

- Thbn ton bnh oxy ha, cn tnh nhy v.cckim loc, quan trTrong cng nghnh khng khZone).

- Trong qu trnh lm vimtc gi2O trong nguyn li trong kh tun. Clo cthng nhQui trnh ti sinh xc tc

Qui trnh ti sinh hon ch Trng rng dng nitn st l

cng khng kh pha long v2 (c kitrong kh) v nng dnh:- NhiooC- Oxy : tOxy-o hcho xc tc (1% tr- NhioC- Oxy: 5% thQu trnh nung: Mm kh xc tc v phn tn l- NhioC


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- 8% th- ThQu trnh kh(d- NhioC- 2 t- Th

VII.nh RC:

phnh reforming u trong b

NhinhSTT Phng H (Kcal/mol)

1 Dehydro ha parafin 31,5

2 Dehydro ha naphten 52,8

3 Dehydro vng ha parafin 63,6

4 phn ha parafin -1 -5

5 Hydrocracking -10

Dehydro ha naphten v dehydro vng ha parafin l cc ph(endothermic), dehyro ha parafin thu nhin nhitnh thnh H2), nn thuthPho p su

Phng Nhi cn b chuy ha90%, oC

1 atm 10 atm 15 atm 50 atm

1. Dehydro ha :

Cyclohexan Benzene +3H2

MethylCyclohexan Toluene + 3H2

294

315

355

391

443

492

487

540


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2. Dehydro vng ha :

n-Hexan Benzene +

4H2n-Heptan Toluene +4H2

354

305

487

428

562

496

623

550

3. Dehydro phn ho :

MethylCyclopentane Benzene+ 3H2

315 391 492 540

T nhichuytrong thnh qu trnh reforming n, l do tchng ta s p su aromatic

tn hnh sau:


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Cn bnh reformingTnh chng ta thn qu cao (30atm) sm gimthngcao th hi p sung r r trong cng m n tchuynh sNghin c p su phmu cnh thnh cp su gigiM nu, vim ginh chnh t vtrong thnh tn chai y l b c-4% ctrn tr -12 thng). Trong cng nghta chnh kho-20 atm, trong cng ngh3,5-4 atm v nhi 500oC. nu, trong ng ha parafin, dehydro rafin. Ba ph n cc s cc parafin mcc s chnh lm cho chqu trnh reforming (cn gng ln rn li

RON nguyn li-60 RON s-105Ty thuo hi ch 80% th RON ~90 cng nghn t

VIII.Cc ph:

Nguyn li -180oC, ch -

v 30 atm ), c th

Trong qu trnh cracking xc tc, phm gi chnglm gi m u chnh c sn xu Cc phn dm ging, cc olefin miv b lm gi Ph-cho hydrocracking, m qu trnh x


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dehydro ho parafin. S cchydrocacbon nh C5, m mtrnh ny thunh cc sso vnh -octan c ch octan cb nhisopentan v propan, cho ch

IX.Mu biu:

Hin th cng nghbn ti sinh v cng nghn t

A,Cng ngh:

M:

ng nguyn lity sang thiph

n bbn l-20% tr

chu km visinh xc tc mdm mthing bi khngcn bn vnh cng nghn ph

Cng ngh yo xc tc. T-1950 ch ytuy cho ho rn ph

mphnh trnh xc tc. Chn btrnh cnh cng nghnh nh by trn hnh 19. M tNguyn li m snh hydro ha, trvo cc l ph-4 l) c chnh sau khi ra kh thim l


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khv tun tr phn lnh lm snghydro. Ph mv gibo ha. LPG tch ra

hphm lhCng nghn nay vn rnh m

V d ln thgi

B,Cng nghn tng, lin t- 10 ngy).n bnh lin ttrong mt h


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C phng trong cngnghn hnh sau:

C ph ph 3,5m, Chi12m, Th 80 m3.Chi ti- 4 l phkio khng gibnh ph cH phng hn li kh giu

hidro (kh tu b trnh reforming. Nhi thdo s phu thy chi-15% trph u th-30%. T phng, nhi trnhiydrocracking


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a.Thi n nhau . n xuthin thinng. Sau khi ti sinh, ch ti sinh lin t hov yhi dnthn c vth


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b.

Hng ngang. Tuy khchinh xy d

v chi ph vnh cao.

Ngoi ra c thn t cng ngh ti sinh lin tkhc nhau. my lnghy c nhichn li


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Qu trnh Cracking xc tc

Qu trnh Cracking xc tc l qu trnh quan trongtrong nh my l s xux c ch cao t cc phn

np yu cu ch l s ph ra.

1. Gi:


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nh2.1 Xc tc cho qu trnh CrackingXc tc cho qu trnh cracking tnhphThnh ph

c tc FCC:Quy trnh s-Davison):HL Alumosilicat tinh th

nh.V thnh ph 2/nO.Al2O3.xSiO2.y.H2O n l ha trnh t cc mnZeolit Y c thnh tinh thnh Engelhard).D-

a tan oxyt nhm ngnh. Gel ny sau kim ng


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C

Zeolit dnh t4 ho4.Lin k-Si-O-Al- tnh cc lc, knh-8. Cc cation dtnh:

an tan vn l thd

+ Bi (hodecation siu b-USY, RE-H-USY ho-DY, RE-H-DY.Vai tr c th decation NH4Y,

oC tinh thnhioC vM -5nhoctan c-5 c tx), hlm xbenzen...) nh khng lm gi


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cn t-

HTrong qu trnh s l chang vchang ph ch tchnh ti sinh, thchm gi cc gel coxyt xilic, cc polymer ch alumosilicatnh. Ch g FCC, tCc nh s nh 2 ph ccnh, oxit nhm; ph cc chsilic, cao lanh. Pha hch -Si vnh, nhno h xc tc v tcc zeolit ho-nh ring lvo 2 thnh ph pha nthnh sng bi myl ch

nh thnh trung tm hon bXc tc cho qu trnh Cracking l xc tc axt. Cc trung tm ho n bch cc tm axit Bronsted v Lewis. Cc trung tm ny hnh thnh do trong

my, bn tn kn khng cnb hnh thnh m+, Mg2+ hay proton sha y v hnh thnh tm axt Bronsted

Khi tinh x 500oC th xu


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S cracking xc tc l phc m dph. Hn cc tm Lewis:

Ph

Ph 2 vbcch t

Cc ion hydride ny khng bnh cc mv d

Qu trnh b mcking. Sx thCc nhnh ankyl gn vng thng v cc nhnh ankyl gngno sn tn tnh t.nh cracking xc tc ionn liaxt cTm axt xc tc c 2 l+) v Lewis (L).

Tm Bronsted l khi tham gia phntm Lewis th thiPh-V d


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-propyl-benzen: Trn tm axt ki

Trn tm axt ki

-o cc phPh

Phtch)

Cc ion tiIon ccboni bccboni b


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theo c ph chuy-Khi cc ion cacboni kn tnh phn ta v chng chnh l ctc.

III.Qu trnh ha h:

Qu trnh ha htc r khng mong mu

3. Ha hnh cracking xc tc

3.1 Cc ph

Ph: x

Ho

Olefin > Ankyl Aromatic > Ankyl naphten, isoparafin> n-parafin, naphten>>n tPhqu trnh t xnh FCC ng mn ctrnh isomer ho.

3.2 Cc ph

Phy xmy sang mnh thnh cch


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Lm gi

Lm gim

Polymer ho olefin ng

Ankyl ho Aromatic vng nhnh ankyl hydro ho poly

Aromatic (c Cng Diels Alder

Hai phn cm chPh C2: sinh ra do phra trn tng lnh by trong b

Hydrocacbon S ph qu trnh cracking xc tc

Parafin -Olefin v parafin

-Olefin v hydro

-iso-parafin

-Cc h ch olefin c tr l phn t thOlefin -Parafin v dien

-Parafin, naphten v hydrocacbon

-Polyme, c

Naphten -Olefin

-Cyclohexan v olefin

-Hydrocacbon thm


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Hydrocacbon

(alkyl thm)

-Parafin v alkyl c mch bn ng

- phn ha, chuy v nhm alkyl

-S ph t v cc.

Phng b 2:

Naphten+ Olefin

-Hydrocacbon thm

-Parafin

Hydrocacbon

+Olefin

-S ph t v c

4. Nguyn li s4.1 Nguyn li

Nguyn linh cracking xc -500oC, c th-410oC-550oCnh Coking coC)oC) ci lNguyn li nhn H2 v c - 360

oC) nhc nguyn liNguyn li phtrnh cracking xc tc. Nhm ny cho s str lm gi hqu trnh cracking. Th thnh phm nhiasphalten l nhc nhiy s v cc ph m skhng nh chng cn l ngunh cnhm giThnh phn linh.V c hnh crackingxc tc, chng gy ng cn chuyo sm giTrong thnh cracking xc tc c thcm nguyn linh m khng ph trnh ny g qu trnh cracking xc tc c(RFCC). Nh


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chng thcm nguyn linh RFCC.n lim nguynlinh cracking xc tc sau khi kh asphalten.

4.2 SCh i trong phvo r cc thng scng nghnh. Hnh cracking chuy- S- - n- ng lm nhin li...

lnh cracking xc tc:Kh hydrocacbonHi10-25% nguyn lio nguyn licracking.n lian xctc l hi hinhn lim s 2S v khinguyn li s3.S ng lm nhin li Propylen l nguynli v Polypropylen (PP), Propan-propen lm

nguyn linh polyme ha v s lmnhin liPropan-propen, butan-buten cn lm nguyn linh alkyl ha t nh td -200oy l ctrnh Reforming, alkylha,nh chnh cracking xc tc khc vng kh

nhinh ch c tr cthm thnh ph-280oCDng lm d-350o snlioCng lm nhin li F.O hay ng lm nguyn linh cha.


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V.Cng nghu bi

Qu trnh Cracking xc tc b nghlon li m

5. Cc cng nghu bi

5.1 Cracking v

Dy chuyn do Houdry, m bi y h kic ccng nghy l h vnh (qu trnhcracking ti sinh xc tc trong cng mchuy ch xuqu trnh cracking v

5.2 Cracking v

Qa trnh cracking c l xc tc chuy thay th qu trnh Houdry.Qa trnh phng bithi ph thi ti sinh). Xc tc lmvi pho l ti sinh v sau khi ti sinh ll ph b t thnh m chu trnhlin t 1942 quy trnh cracking c lnn l Up Flow.


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ph l ti sinh, tch hc th ph ti sinh xc tc qu trnhth lai . Dy truy lin t cnh dcnh d dn hnh cm gimt xc tc v gii mn thi nng cao hitn li 10. Hng

thi ng Standard-Oil thi h chn liy cng x


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Cng nghng cng nghi

5.3 Cng nghng UOP

n t n nay cng ngh cracking nhn ha cnh cOilCo pht tring UOP thi ti sinh antan 1 c l ti sinh an tan m lthng dn tan th cn liph m ln linh. Xc tc saupht an tan CO thnhCO2, khng sm cc phn ln bxc tc sau ti sinh l th L ti sinh

hai c b cng ngh FCC thng cho nguyn li -10 % cnli ti sinh xc tc chia lm hai tm ln tithn c nhin btc, tn ln ban tan.y dg cacbon cn ln b

5.4 Cng ngh


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S c thdng van chnh tuan c trnh cracking th hi han tan trong l ph d th ti sinh xc tc v khngkh tinh by trong hnh chnh c model ny l vi phun nguyn li c ti nh s ti xc gi xc tc v nguyn lim ngucch tang trong l ti sinh n, mi mntrang thi nhnh dng bmngu cch b

5.5 Cng nghng Shell

Shell c nhiQu trnh Shell LRFCC (Long Residue FCC) rbm ngunh by trong hnhsau:


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5.6 Cng ngh Total v Stone & Webster Hai hng cng nghi hthnh RFCC vnh nhn c tn l R.2.R Process. Qa trnh cm ngui xc

tc, h phngh l n livo dng xc tc nng.


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5.7 Cng nghn tn cc-R, cracking c c tnh linh h nguyn li khc nhau tcc ph c chn khng cc l c

VI.Cc y:

qu trnh cracking xc tc tsi (ginh thn dng xc tc chuyn t phng nguyn li sang lng v tham gia ph phChu trnh trn n t

6.1. Cc yCng nghnn liiC = T- y(100-z)y: l % thz: l % th c trong nguyn li


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nh FCC

6.2 TL tn litrong l phm gi tnth6.3 Tn liTn lin g buan xc tc (X/RH). Vl X/RH=10/1 cn xc tc v nh X/RH=20/1. Khi thay ph l ti sinhn xc tc. m

gixc gi nguyn linh cln.6.4 NhiNhi phnh trong kh-540oC. Khi nhinth tkhn d-ng, C4 giv trn.Khi nhi c6.5 p su

Khi p su hin, hi-C3 gigi6.6 Ti sinh xc tc crackingNguyn nhn chnh lm m do cthnh bm kn b xc tc. ti ti sinh.nh CO, CO2, cc ph

C + O2 CO2

C + 1/2O2 CO


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CO + 1/2O2 CO2

H2 + 1/2O2 H2O

S + O2 SO2SO2 + 1/2O 2 SO3MeO + SO3 MeSO4

MeSO4 + 4H2 MeO + H2S + 3H2O

Nhit ng t ra dng c nhit cho xc tc mang vo l ph

cracking.


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nh hydrocrackingGi

Hydrocracking l qu trnh ttri dnhnh vcth nhi

1. GiPhnh,

sun li

cc s - t n li nh ph m nguyn licho reforming xc tc. Hydrocracking khng chdn lin li cn n li c triHydrocracking c dqu trnh ny vo cng nghin thinh

chnh - c th m vin likhc nhau, v squ trnh ny trnh mnh then ch my chd i hydrocracking gip cho cc nh ch quy a (ma xun v h cph cn ma thu v i ra n cgi

Nguyn likh ha l- nhin li nhin linh chs

n li vHydrocracking khc vm s di

ph h n li hydrocarbon n nh phx d hucy.Qu trnh hydrocracking dicc qu trnh lm s hydrocracking ding mh


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nh (d kh ha ltn lihnh lm sn li hydrocracking tinh ringnh n lin li chy trong bs oxit ho n trong b- xc tc chzeolit vnh tinh trong bab n li distilat hotrnh su-1, bnlioC trong b 480oC trong b

2. Nguyn li s

Nguyn linh hydro cracking r

Nguyn liu Sn phmNaphten PhnnC3,C4Kerozen NaphtenGasoil(cracking ) Naphten, kerozen.Distillar VD,

DAO.

Naphten, kerozen,gasoil,dugc,nguyn

Trong cc ngun li trn th phn t Visbreaking, Delaycokingv Cycle Oil t c sph c qu trnh Hydrocracking so v qu trnh Cracking thng th tolefin, aromatc v nhio parafin. V doctan trung bnh kh, c chi ra, qu trnh Hydrocracking cnt nh

Alkyl ha trong nhmy lnh ny cn t

III.Cc ph


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Cc phnhhydrocracking:

3. Cc ph3.1 PhPh hydro hanh Hydrocracking. Haiphy c tc dtrong cng mnh.Ph cung ctrnh hydro ho v ngcung cnh cracking. Tuy nhin, nhinhhydrnh cracking, v thn bqu trnh th c th phPhn cc hnhhydro ha cc hromatic.Ph: lun dinh cng vnh isomer ho xn k-C squ trnh cracking.

3.2 Cc ph

Bn cg chnh, v ch

Hydro deankyl ho Aromaticn cc mc

Phy sng sm giphPh: cc phy c tc dhunh. Tuy nhin, l


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hydro trong nh my l tho phkhng mong muPh: V lm giphn v

4. Xc tc cho qu trnh Hydrocracking:

Chnh hydrocracking thng th tinh thsilicat c mang cc kim lotnh phn chkim lou cy. Cc kim lohiMo, NiW.

Xc tc cho qu trnh Hydrocracking rnguyn lin linhny. Nn li xc tc sm gic tc, chkim lon lii ra, nguyn lic tc Sau thm vic tc c th cnh thnh ngay khi cmm viKhi xc tc th qu nhicng knh qua ln xc tc t

truy

5. Cc y

Kh dng snh. Cc ynh c thng, p sung phMi ch naphtha tihn vn li

cc s fuel oil.

5.1

thnh thch h n tduy tr ho nhinh dao 650ooF, cn ch ho i h750ooF.


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5.2 nh v vvnh trnh Hydrocracking l qu trnh tsn n thch hu th ho i h mng nn n cp suu th 4000 csf/bbl trln.ng nhi cng c l25% cho cc ph ba cc hlefin, aromatic. Hmnh phu cnh tchtnh lm s bm hydro cho dngtun.

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