1-bai mo dau hysys

7/23/2019 1-Bai Mo Dau HYSYS

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Welcome to

Process Design inChemical Engineering


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Process Simulation

M phng qu trnh ha hc l g ?S liu no cn thit cho qu trnh m phng?Chng trnh m phng l g?Phng php m phng mt qu trnh s dng

computer (PC & Laptop)

Mc tiu:Hiu r v m phng v m phng trong cngngh ha hcBit cch s dng phn mm Hysys/UnisimS dng Hysys/Unisim m phng cc thitb, qu trnh chnh


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What is Chemical Process Simulation ?

M phng qu trnh vn hnh ca mt nh my

ha hc, hoc mt qu trnh ch bin sdng m phng Steady State v Dynamic

bit

Mun bit

Water (100 kg/s, 1atm, 95o

C

Ethanol+Water (50:50, 150 kg/s, 1atm, 83oC

Process

Unit

(Mixer)

Input-1

Input-2

Output


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Cc thng s chnh( bit & cha bit)

Input streams:

o p sut (P)

o Nhit (T)

o Thnh phn dng (x)o Tng lu lng (F)

Thng s thit b

o Trng thi n nh

o c bo n (q = 0)o Khng b r r

Output stream

o p sut?

o Lu lng dng tngr?

o Lu lng dng cu t?o Thnh phn cu t?

o Nhit ?

Phn tch pha

o Dng vo v dng raThng s vt l khc: nht, t trng, ca ccdng


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What did We do ?

Cung cp cc thng tin: thng s u vo

thng s thit b: trn on nhit, khng r r,

S dng cc m hnh ton hc m t ton b qu

trnh cng ngh: Thng tin cha bit s dng MB, EB, VLE v so

snh cc property correlations

M phng qu trnh ha hc (hn hp n nh)

Thc hin m phng:

Thi gian thc hin cn thit

Cc li c th mc phi

chnh xc ca kt qu nhn c


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Qu trnh m phng s dng Hysys/Unisim

Hysys/Unisim l g? Hysys/Unisim c th lm g?

Cc cng c trong Hysys/Unisim?

Cch s dng Hysys/Unisim?

Mc ch ca bi ging:M phng cc qu trnh trong cng nghip

Cc ng dng trong Hysys/Unisim, cch sdng, cc module, cc tin ch

Bit cch s dng tng Module trongHysys/Unisim

Sau khi m phng s nhn c s cng

ngh bng Hysys v kt qu m phng r rng


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Advantages of Simulator

Giao din ha p

Khng phi lp trnh

S dng cc gi property packages c sn giptit kim thi gian v cng sc

Thu c nhiu kt qu c gi tr ln

C th thc hin nhiu chc nng


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Hysys Modules

Steady State Dynamic

Chemico-Physical

Reactor (general, CSTR, PFR)

Movers (Pump, compressor, expander, valve)

Mixer

Splitter (Tee)

Exchangers (Heater/ Cooler, S & T, LNG)

Flash Drums (2-phase (VL), 3-phase (VLL))

Separator (Component splitter, distiller, Absorber,

Cyclone, Gas filter, Extractor)

Pipe segment

Tank

Furnace

Air Cooler

Logical

Set

Adjust

Recycle

Balance

Spreadsheet

PID

Controller


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Giao din ban u

Cc Case s

dng gn y

Ch dng cho m

phng thp chng

To Case thng thng


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Simulation Basis Manager

Thit lp cu t

Xut nhp filelu thnh phn

Cc Tab


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La chn cc cu t


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To cu t gi

To cu t gi


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Thit lp tnh cht ca cu t gi


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La chn Fluid Packages

Thit lp h

nhit ng

Xut nhp file luh nhit ng


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La chn m hnh nhit ng ph hpng vai tr quan trng ti chnh xckt qu m phng

Cc thng s xc nh t h nhit ng

Hng s cn bng pha K

Enthanpi ca pha lng v pha hi Entropy ca pha lng v pha hi

T trng ca pha lng v pha hi

La chn Fluid Packages


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Cc m hnh nhit ng Dng theo phng php hiu chnh

(Generalized Correlation Methods): GS,

CS,IGS, Dng phng trnh trng thi (Equation ofState Methods): SRK, PR, SRKS, BWRS,...

Dng theo hot (Liquid Activity Methods):NRTL, UNIQUAC,

Dng c bit (Special Packages): AMINE,ALCOHOL, SOUR,

C s la chn h nhit ng:c trng nhit ng ca h (h s K)Thnh phn hn hpPhm vi nhit p sut

Tnh sn c ca cc thng s ca h
http://localhost/var/www/apps/conversion/releases/20121114005856/SSMod/Model%20Selection.ppthttp://localhost/var/www/apps/conversion/releases/20121114005856/SSMod/Model%20Selection.ppt


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La chn H nhit ng

La chn EOS


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Thit lp cc phn ng

Thit lp

phn ng


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CC DNG PHN NG

Conversion : phn ng tnh tonda vo chuyn ha

Equilibium: phn ng tnh ton datrn hng s cn bng K

Heterogeneous Catalytic

Kinetic: phn ng tnh ton da trnhng s tc phn ng

Simple Rate


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Thit lp phn ng

H s t lng


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chuyn ha

chuyn ha


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Thit lp n v tnhTools/ Preferences/ Variabletab


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Vo mi trng m phng

Vo mi trng m phng


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Hysys Module Palette


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General Reactor

Dng nguyn liu, dng sn phm

Cung cp P hoc P ca dng sn phm

Thit lp dng nng lng

Khng t Q: phn ng on nhit

Q cn thit hoc T ca dng sn phm

T phn ng chnh l T ca dng sn phm

Conversion: khi bit chuyn ho Equilibrium: dung cho phn ng Equilibrium

Gibbs: phn ng Equilibrium


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General Reactor: Conversion


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Hysys tnh ton nh th no?

Mi Module trong Hysys l mt chng trnh tnh toncn thng s ban u (ca dng vo v thit b),trc khi tnh ton dng ra cho module

Ch tnh ton mt module ti mi thi im

Ngay khi cc thng s ban u c nhp vo chomodule, Hysys s tnh ton cho module

A B CS1 S2 S3 S4 S5

A B CS1 S2 S3 S4 S5

If we specify S2 fully(A unsolved) If we specify S4 fully

What will happen, if we specify S1 fully in the first (original) BFD?


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V d

Mt s c dng tun hon n gin

Dng bit

Dng cha bit

Reaction A B

ReactorSeparation

Unit

B

Purge

Unreacted A

Recycle Loop

Feed A


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Xy dng s khi (BFD)

bit cc thng s ca dng Feed, nhng Hysysvn cha th tnh ton? Ti sao?

Lm th no kch hot Hysys ?

Reaction A B

ReactorSeparation

Unit

B

Purge

Unreacted A

Recycle Loop

Feed A


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S dng cng c Recycle

S dng cng c Recycle

D on cc thng s ca dng ra

bit specs ca Mixer, Hysys c th tnh g?

ReactorComponent

Splitter

TeeRecycle

Mixer


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Hysys tnh ton Mixer

ReactorComponent

Splitter

TeeRecycle

Mixer


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Hysys tnh ton cho thit b phn ng

ReactorComponent

Splitter

TeeRecycle

Mixer


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Hysys tnh ton component splitter

ReactorComponent

Splitter

TeeRecycle

Mixer


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Hysys tnh ton Tee

Recycle l cng c khng thc t,Lm th no dng trc v sau Recycle

ging nhau ph thuc vo suy on ban u

Recycle s c mu vng

ReactorComponent

Splitter

TeeRecycle

Mixer


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Thit lp dng vt liu


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Composisions

Mol Frc. Mol Frc.

C1 0.330 iC5 0.069

C2 0.143 nC5 0.059

C3 0.101 nC6 0.078

iC4 0.098 C7+ 0.042

nC4 0.080


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Phase Envelope


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Nh tay ng giao din


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Tr li PFD

C 3 cch:

Bm vo phm

Bm vo phm

Bm vo Tool PFD, chn View

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