thuyet trinh hysys

7/29/2019 Thuyet Trinh Hysys

1/51


2/51


3/51

I. GII THIU S LC V NH MY M PH

M

II

.

TNG

QUAN

V

QU

TRNH

KH

LU

HUNH

V

SN

XUT

KH

TNG

HP

III

.

M

PHNG

QUY

TRNH

CNG

NGH

KH

LUHUNH

V

REFORMING

HI

NC

KH

T

NHINTRONG

NH

MY

M

PH

M

IV . KT LUN


4/51

I.

S LC V NH MY M PH M


5/51

Chut: Tng cng ty Du khVit Nam

Nh thu: Technip Italia v Samsung Egineering Hn quc

Tngvnut: 450 triu USD

Cng ngh: anmch v Italia

Khi cng xy dng nh my: 3/2001

Ngy nhn kh vo nh my: 24/12/2003

Ngy ra snphm ammonia u tin: 4/2004

Ngy ra snphm ur u tin: 4/06/2004

Ngy bn giao snxut cho chut: 21/9/2004

Ngy khnh thnh nh my: 15/12/2004

S LC V NH MY M PH M


6/51

NGUYN LIU CHNH DNG CHO NH MY

Kh thin nhin: CH4, C2H6, C3H8, C4H10

Khng hnh mBchH, Kh thin nhin tbntrng NamCn Sn v cc b khc thucthmlca pha Nam.

Lng kh tiu th: 450 x 106 Nm3/nm.

c tnh v thnh phn kh:Nhit: 18-36 0C.

p sut: 40 Bar

Trnglng phn t: 18,68 g/molNhittr: 42,85 MJ/m3 hay 40613,4 BTU/m3

Thnh phn: C1=83,31%. C2=14,56%. C3=1,59%. iC4=0,107%.

nC4=0,109%.


7/51

Hi nc

Hi nc

Nc

lm mt

Nc thi

Sng

Th

ViXng ph tr Xng

AmnicXng

Ur

Xngsn phm

Kh CO2

Amnic Ur ht

2200 t/ngy

Nc lm mt

Kh t nhin

Nc tun hon

in

SN PHM CHNH CA NH MYNH3: 1,350 tn NH3 /ngy (Cng ngh Haldor Topsoe - anmch)

UREA: 2,200 tn Urea /ngy (Cng ngh SnamProgetti - Italia)

IN: 21MWH

S LC V NH MY M PH M


8/51

Khtnhin Kh Luhunh

Secondary

Reformer

Khng kh (t)

Chuyn ha

CO

Nhitthp

Hinc

Primary

Reformer

Chuyn hoCO

Nhit cao

H2

S khi qu trnh snxut kh tnghpca nh my mPH M

II. TNGQUAN VQU TRNH KHLUHUNHV SNXUTKH TNGHP.


9/51

Kh t nhin

Khschti l

Reforming (S 0,05ppm)

Phng trnh phnng trong 10-R-2001:

R-S-H + H2 RH + H2S

t = 380 o C

Xt : Co-MoS

Phng trnh phnng trong 10-R-2002 A/B:

ZnO + H2S ZnS + H2Ot = 400 o C

CNG ON I: KH LU HUNH

Thp Hyrha

10-R-2001

Thp hpthLuhunh

10-R-2002

A/B

H2 Recycle

10-K-4011

Mcchca cng on: kh luhunhkhidng kh cng ngh v luhunh gy ngcxc Reforming.

Mc ch ca thit b Hydro ho: chuyn hocc hpchtcaluhunhdnghuc sangdng v c H2S v xc tc ZnO ch hp thcluhunhdng v c


10/51

CNG ON II: REFORMING

Phng trnh phnng trong 10-H-2001:

CH4 + H2O CO + 3H2 - Q

CnH2n+2 + H2O Cn-1H2n + CO + 3H2 Q

CO + H2O CO2 + H2 + Q

t = 650/780 o C

Xt : Ni-Mg

Phng trnh phnng trong 10-R-2003 :

CH4 + 2O2 CO2 + 2H2O

( Khng kh c 21% O2

v 79% N2

)

To = 160

LReforming

scp

10-H-2001

Kh nhin liu (Kh t)

Chuyn ha COKh cng ngh

Hi ncL

Reformingth cp

10-R-2003

Khng kh

to / Xt

Mcchca cng on: Chuyn ho kh t nhin thnh CO, CO2 v H2 qua

phnng Reforming bnghinc.

Phnng Reforming l phnng thu nhit, nhitlng cung cp cho phn

ngtithitb Reforming scpt qu trnh t kh Fuel gas

Nhit lng cung cp cho phn ng trong thit b Reforming th cp t

phnng chy trctipgia khng kh c nn t my nn khng kh v

kh t nhin, H2

Nhngyutnhhngnhiusutcaphnng: Nhit Tl Steam/Cacbon (2,9-3)

Hot tnh ca xc tc. Khi xc tc hotng sau mtthi gian dihot tnh gim, mbohiusutphnng cao th phi tngnhithoctngtl Steam/Cacbon.

CH4 : 14%

CH4 : 0,6%


11/51

CNG ON II: REFORMING NH HNG CA

NHIT :

Khi nhittngt

800 1100oK th hiu

sutchuyn ha CH4

tng, cn hiusut

chuyn ha CO gim

Nu qu trnh chuyn ha CH4 v CO trong cng mtthitb th nhit cao nng CO cn li cao, do khng thtngnngH2.

Khi nhitchuyn ha thp (800oK) mtlngln CH4chaphnng.

Do : thu cnng H2

cao phichuyn ha hai giai on


12/51

CNG ON II: REFORMING

NH HNG CA T L HI NC/ NGUYN LIU

chuyn ha ca CH4 khi thayitl S/C v nhit,kho stp sutl 1 bar


13/51

CNG ON II: REFORMINGKh nhin liu (Kh t)

Chuyn ha COKh cng ngh

Hi nc

Khng kh

CH4 : 14%

CH4 : 0,6%

Xc tccathitbReformingscpgm 3 lp xc tc:RK211, RK201 v R-67-7H tui th d kin t 3 n 5nm.

Xc tccathitbReformingthcp RKS-2-7H.Tuithdkin > 5nm.


14/51

CNG ON III: CHUYN HA CO THNH CO2 v H2

Phng trnh phnng 10-R-2004 :

CO + H2O CO2 + H2 + Q

Phng trnh 10-R-2005.

CO + H2O CO2 + H2 + Q

t = 360 430 o C

Xt : Fe, Cr, Cu

Kh Reforming

Khchuyn ho

( co : 0,23%)

Thp chuynha CO nhit

cao

10-R-2004

Thp chuynha CO nhit

thp

10-R-2005

t = 195 220 o C

Xt : Cu, Zn, Al

o Mcchca qu trnh : chuyn ha CO thnh CO2 v H2o Phnngchuyn ha CO thnh CO2 lphnngtonhit,

nhit cao tcphnnglnnhnghiusutchuyn hathp. Vvycngon ny chia thnh 2thitbchuyn hao Thp chuyn ha CO nhit cao chuyn haphnln

CO CO2.o Thp chuyn ha nhitthpchuyn ha CO CO2

hn.

CO : 3,23%.


15/51

CNG ON II: CHUYN HA CO THNH CO2 v H2

Kh Reforming

Khchuyn ho

( co : 0,23%)

XT : Fe; Cr;

Cu

XT: Cu; Zn ;

Al

CO : 3,23%.

Xc tc 10-R-2004: SK-201-2, thi gian bo hnh 3

nm, tuithdkin 5 nm. Xc tc 10-R-2005 : gm 2 lp: LSK v LK-821-2, thigian bo hnh 2 nm, tuithdkin 3 nm.


16/51

PHN III: M PHNG QU TRNH CNG NGHKHLUHUNH V SNXUT KH TNGHPTRONG NH MY M PH M


17/51

Thitlp thng scbn cho qu trnh m phng3.1.

3.1.1.Thitlp cc cutcnthit cho qu trnh

- Lachn cc cu t sau: Oxygen, Hydrogen, Nitrogen,CO, CO2, Argon,

Methane, Ethane, Propane, i-Butane, n-Butane, n-Hexane, H2O, M-Mercaptan,

E-Mercaptan, ZnO, H2S, ZnS.

- Lpcutgi:

- Hnghc: Peng-Robinson.

Cut ZnO ZnS

Khilng phn

t

81 97

Tkhi (Kg/m3) 5650.03 7133.02


18/51


3.1.2.Thitlp ccphnng cho qu trnh

Phnng cho qu trnh hydro ha

Phnng cho qu trnh khluhunh

Phnng cho qu trnh Reforming scp

Phnng cho qu trnh chuyn ha CO -> CO2

Phnng cho qu trnh Refoming thcp


19/51


1. Qu trnh hydro ha

Add Reaction: Conversion

Name Hidro hoa 1 Hidro hoa 2

Stoichiometry/Component

M-Mercaptan E-Mercaptan

Hydrogen Hydrogen

Methane Ethane

H2S H2S

Stoichiometry/Stoich Coeff

-1 -1

-1 -11 1

1 1

Basis/Rxn Phase VapourPhase VapourPhaseBasis/Co 100 100


20/51


1. Qu trnh hydro ha


21/51


2. Qu trnh khluhunh


Name Khu S

Stoichiometry/ComponentZnOH2S

ZnS

H2O


-1

-1

1

1

Basis/Co 100


22/51


2. Qu trnh khluhunh


23/51


3. Qu trnh Reforming scpAdd Reaction: Conversion

Name Refor_SC1 Refor_SC2 Refor_SC3

Stoichiometry/Component

Methane CO Ethane

H2O H2O H2OCO CO2 Methane

H2 HydrogenCO

Hydrogen


-1 -1 -1

-1 -1 -11 1 1

3 11

2

Basis/Rxn Phase VapourPhase VapourPhase VapourPhase

Basis/Co 55 35 100


24/51


3. Qu trnh Reforming scp

Name Refor_SC4 Refor_SC5 Refor_SC6 Refor_SC7

Stoichiometry/

Component

Propane i-Butane n-Butane n-Hexane

H2O H2O H2O H2O

Ethane Propane Propane MethaneCO CO CO CO

Hydrogen Hydrogen Hydrogen Hydrogen

Stoichiometry/S

toich Coeff

-1 -1 -1 -1

-1 -1 -1 -5

1

1

1

1

1 1 1 5

2 2 2 10

Basis/Rxn

PhaseVapourPhase VapourPhase VapourPhase VapourPhase

Basis/Co 100 100 100 100


25/51


3. Qu trnh Reforming scp


26/51


4. Qu trnh Reforming thcp


Name Refor_TC1 Refor_TC2 Refor_TC3

Stoichiometry/

Component

Methane Methane CO

H2O Oxygen H2O

CO CO2 CO2

Hydrogen H2O Hydrogen

Stoichiometry/

Stoich Coeff

-1 -1 -1

-1 -2 -1

1 1 1

3 2 1

Basis/Rxn

PhaseVapourPhase VapourPhase VapourPhase

Basis/Co 70 100 5


27/51


5. Qu trnh chuyn ha CO -> CO2Gm hai giai on: giai on chuyn ha nhit thp v nhit cao.i vi qu trnh ny th trong Hysys tch hp sn cho chng ta phn

ng trong library v c tnh ton theo hng s cn bng.Nn ta chn loi phn ng Add Reaction: Equilibrium v vo trong

Library chn phn ng: CO + H2O -> CO2 + H2

Vimc Reaction Set

Name Active ListHidro Hoa Hidro hoa 1, Hidro hoa 2

Khu S Khu SRefor_SC Refor_SC1, Refor_SC2, Refor_SC3, Refor_SC4,

Refor_SC5, Refor_SC6, Refor_SC7

Refor_TC Refor_TC1, Refor_TC2, Refor_TC3CO -> CO2 Tcao CO -> CO2

CO -> CO2 Tthap CO -> CO2


28/51


Cui cng taphi add tonb cc Reaction Set ny vo trong hnhitngchn.


29/51

3 Thit lp m phng qu trnh kh S v qu trnh Reforming hi nctrong nh my m Ph M

3.2.

3.2.1. Thitlp cc dng nguyn liu cho qu trnh1. Dng kh t nhin 2. Dng km oxit

Nhit 36oC, p sut 24.5 bar_g Nhit 250oC, p sut 38.2 bar_glng mole l 31476 Nm3/h (gas) mass flow: 290 Kg/h

Cut Thnh phn (% mole)N2

CO2

CH4

C2H6

C3H8

n-C4H10

i-C4H10

n-Hexane

0.26

0.01

83.31

14.57

1.60

0.11

0.11

0.03

Cut Thnh phn (%

mole)ZnO 1.0


30/51


3.2.

2. Dng Recycle H2Nhit 370oC, p sut 38 bar_g v lulng mole l 1.083x105 Nm3/h (gas)

3. Dng khng kh nng

Nhit 550oC, p sut 31.5 bar_g, lulng dng mole 5.353x104 Nm3/h (gas)

Cut Thnh phn (% mole)

Hydrogen

CO2

H2O

0.01%

0.06%

99.93%

Cut Oxygen Nitrogen CO CO2 Ar H2O

Thnh phn(% mole)

20% 76% 1% 1% 1% 1%


31/51


3.2.

3.2.2. Thitlp cc thitb c trong qu trnh1. Thitlp my nn K-100

My nn K-100 c nhimv nn kh t nhin t 24.5 bar_g ln 39.2 bar_g

Name K-100

ConnectionInlet Khi Tu Nhien

Outlet Gas to E1

Energy Q-K100

WorksheetPressure, Gas to E1

(bar_g)39.2


32/51


3.2.

2. Thitlpthitbun nng E-1

Name E-1ConnectionInlet Gas to E1

Outlet Gas to Mix1Energy Q-E1

Parameters

Duty 2.037x107 kJ/hDelta P 49.81 kPa


33/51


3.2.

3. Thitlp Mix 1

Name Mix 1Connection

InletGas to Mix1

Recycle H2Outlet Gas to E2


34/51


3.2.

4. Thitlp E-2 Name E-2Connection

Inlet Gas to E2Outlet Gas to Hydro HoaEnergy Q-E2

WorksheetPressure, Gas to Hydro

Hoa (bar_g)38.2

Temperature, Gas toHydro Hoa (C)

400


35/51


3.2.

5. Thitlp Hydro Hoa (Conversion)

Name Hydro HoaConnection

Inlet Gas to Hydro HoaVapour Outlet To khu SLiquid Outlet Hydro Liq

Energy Q-hydro hoaReactionDetails, Reaction Set Hydro Hoa

WorksheetTemperature, To khu S (C) 380


36/51


3.2.

6. Thitlp Khu S (Conversion) 7. Thitlp Mix 2

8. Thitlp E-3 (Heater

Name Khu SConnection

InletTo khu S

Km oxitVapour Outlet To Mix 2Liquid Outlet Khu S Liq

Energy QReactionDetails,

Reaction SetKhu S

WorksheetTemperature,To Mix 2 (C)

390


InletTo Mix 2

Hoi Nuoc

Outlet To E3

Name E-3Connection

Inlet To E3

Outlet To Refor_SCEnergy Q-E3

WorksheetPressure, To

Refor_SC (bar_g)34.8

Temperature, ToRefor_SC (C)

535


37/51


3.2.


38/51


3.2.

9. Thitlp Refor_SC (Conversion) 11.Thitlp Refor_TC (Conversion)

10. Thitlp Mix 3

Name Refor_SCConnection

Inlet To Refor_SCVapour Outlet To Mix 3Liquid Outlet Refor_SC Liq

Energy Refor_SC Q

ReactionDetails, Reaction Set Refor_SC

WorksheetPresure, To Mix 3

(bar_g)30.90

Temperature, To Mix3 (C)

783


Inlet To Mix 3

Khong khi Nong

Outlet To Refor_TC

Name Refor_TCConnection

Inlet To Refor_TCVapour Outlet Vap to E4Liquid Outlet Refor_TC Liq

Energy Refor_TC QParameter

Delta P 50 kPaReaction

Details, Reaction Set Refor_TCWorksheet

Temperature, Vap ToE4 (C)

958


39/51


3.2.


40/51


3.2.

12. Thitlp E-4 (Cooler) 13. Thitlp CO -> CO2 Tcao (Equilibrium)

Name E-4Connection

Inlet Vap To E4

Outlet

To CO -> CO2

CaoEnergy E4-Q

ParametersDelta P 20 kPa

Worksheet

Temperature,

To CO -> CO2Cao(C)

340

Name CO-CO2 TcaoConnection

InletTo CO -> CO2

Cao

Vapour Outlet To E5Liquid Outlet Liq Tcao

Energy Q1Reaction

Details, Reaction SetCO -> CO2

TcaoWorksheet

Temperature, To E5(C)

360


41/51


3.2.

15. Thitlp E-5 (Cooler) 16. Thitlp CO -> CO2 Tthp (Equilibrium)

Name E-5Connection

Inlet To E5

OutletTo CO -> CO2

TthapEnergy E5-Q

ParametersDelta P 90 kPa

WorksheetTemperature, To

CO -> CO2Tthap(C)

170

Name CO-CO2TthapConnection

InletTo CO -> CO2

TthapVapour Outlet Vap ProductLiquid Outlet Liq Product

Energy Q2Reaction

Details, Reaction SetCO -> CO2

Tthap

WorksheetTemperature, To E5(C)

190


42/51


3.2.


43/51


3.2.

S PFD trn Hysys qu trnh khluhunh v Reforming hinc trong nh my mPh M


44/51

Ktqu m phng3.3.

3.3.1.So snh kt qu m phng vi s liu t nh my m Ph M

Bng 3.1. Thnhphn dng snphmca l Reforming scp v thcp


45/51

Ktqu m phng3.3.

3.3.1.So snh kt qu m phng vi s liu t nh my m Ph M

Bng 3.1. Thnhphn dng snphmca l Reforming scp v thcp


46/51

So snh kt qu m phng vi s liu t nh my m Ph M3.3.1

Bng 3.2. S liu v dng sn phm thit b chuyn ha CO -> CO2 nhit cao v nhit thp

Nhn xt: Ktqu gia qu

trnh m phngv thc t l

tng i st vinhau, thnh phnsn phm kh cam phng c sai

lch nhngkhng ng k.


47/51

Kho st s nh hng ca t l hi nc trn hydrocacbonn qu trnh Reforming hi nc.

3.3.2

Sdng Set trong Hysys ci t gi trca t l dng lu lng molegiahinc v kh t nhin.

Tin hnh kho st snhhngca qu trnh Reforming khi m tlhinc trn kh t nhin thay i, ta kho st s thay i thng qua s thay ica lu lng mole ca kh H2 v CO c trong dng kh snphm (VapProduct).

Thitlp Set cho tlhinc v kh t nhin nh sau:

Name SET-1Connection

Target Variable,

Object Hoi NuocTarget Variable,

VariableMolar Flow

Source, Object Khi Tu NhienParametersMultiplier 3.4403

S dng Case study

kho st s nhhng ca lu lngmole hi nc n

qu trnh Reforming.


48/51

Kho st s nh hng ca t l hi nc trn hydrocacbon nqu trnh Reforming hi nc.3.3.

Hnh 3.2. th nh hng ca t l hi nc trn kh t nhinn qu trnh reforming thng qua vic kho st s thay i ca

lu lng mole ca H2 v CO.

3.3.2


49/51

Tth ta thyrng:Khi tng t lhinc trn kh t nhin th qu trnh reforming cho

chng ta cnhiu Hydro hn v lng CO thu cgimdn, do nthun li cho qu trnh mun thu nhiu hydro. Mt khc ta cng nhn thyrng, khi t lhinc trn kh t nhin tng nmt gi tr no trongkhong > 3.5 th lulng dng ca kh hydro tng khng ngk. Do vit l 3.4403 ca nh my nh tiu v ph hpvi thng skho st trnCase Study.

Kho st s nh hng ca t l hi nc trn hydrocacbon nqu trnh Reforming hi nc.

3.3.2


50/51

KT LUN

Mphng

thnh cngqu trnh kh

S v qu

trnh

Reforming

So snh ckt qu caqu trnh

trong m

phng v trnthc t. Kho st s

nhhngcatlhinc trn kht nhin n

qu trnh

Reforming


51/51

XIN CHN THNHCM N THY V CC

BN THEO DI

thuyet trinh hysys

Documents