actividades ASPEN

8/9/2019 actividades ASPEN

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©2000 AspenTech. All Rights Reserved.

• Objective - Create a graphical flowsheet – Start with the General with Metric Units Template. – Choose the appropriate icons for the blocks. – Rename the blocks and streams. – When finished, save with filename: Actividad01.apw

Introductio n to Aspen Plus

Extractor Flowsheet Definition

EXTRACT

DESTIL

TOPFEED

BOTFEED

ETOP

EBOT

DTOP

DBOT

ExtractModel

RadFracModel


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• Objective - Create a graphical flowsheet – Start with the General with English Units Template. – Choose the appropriate icons for the blocks. – Rename the blocks and streams. – When finished, save with filename: Actividad02.apw

Introductio n to Aspen Plus

REACTOR

COOL

SEP

FEED REAC-OUT COOL-OUT

RECYCLE

PRODUCT

REACTOR

FEED

RECYCLE

REAC-OUT

COOL

COOL-OUT

SEP

PRODUCT

RStoicModel

HeaterModel

Flash2Model

Cumene Flowsheet Definition


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©2000 AspenTech. All Rights Reserved. Introductio n to Aspen Plus

When finished, save withfilename: Actividad03.apw

FL1

Heater

Model

Flash2

Model

Flash2

Model

COOL

FEED COOL

VAP1

LIQ1FL2

VAP2

LIQ2

Benzene Flowsheet Definition Workshop• Objective - Create a graphical flowsheet

– Start with the General with English Units Template. – Choose the appropriate icons for the blocks. – Rename the blocks and streams.


4/20


•

Flowsheet Workshop (2)

• Objective - Create a graphical flowsheet

– Start with the General with English Units Template. – Choose the appropriate icons for the blocks – Rename the blocks and streams

– When finished, save with filename: Actividad04.apw

FsplitModelFSPLIT1

FEED1

FEED2

FEED3

D

SS

B


5/20


•


• Objective: Create a graphical flowsheet

– Start with the General with English Units Template. – Choose the appropriate icons for the blocks – Rename the blocks and streams

– When finished save with filename: Actividad05.apw

•SEP2

•FEED1

•FEED2

•D

•B

• Sep2• Model


6/20


•


• Objective: Create a graphical flowsheet – Start with the General with English Units Template. – Choose the appropriate icons for the blocks – Rename the blocks and streams

– When finished save with filename: Activity05.apw

•

Sep2• Model

•DIST1

•DIST2

• A

• D

• E

• C

• B

• G

• F

• F

• Decanter• Model

• Sep2• Model


7/20


Cumene Production Conditions

Q = 0 Btu/hrPdrop = 0 psi

C 6H6 + C3H6 C 9H12Benzene Propylene Cumene (Isopropylbenzene)

90% Conversion of Propylene

T = 130 FPdrop = 0.1 psi

P = 1 atmQ = 0 Btu/hr

Benzene: 40 lbmol/hrPropylene: 40 lbmol/hr

T = 220 F

P = 36 psia

Use the RK-SOAVE Property MethodFilename: CUMENE.BKP

REACTOR

FEED

RECYCLE

REAC-OUT

COOL

COOL-OUT SEP

PRODUCT


8/20


Benzene Flowsheet Conditions Workshop

• Objective: Add the process and feed stream conditions to aflowsheet.

– Starting with the flowsheet created in the Benzene FlowsheetDefinition Workshop (saved as BENZENE.BKP), add the process andfeed stream conditions as shown on the next page.

• Questions:1. What is the heat duty of the block “COOL”? _________2. What is the temperature in the second flash block “FL2”? _________

Note: Answers for all of the workshops are located in the very back of

the course notes in Appendix C.


9/20


Feed

T = 1000 F

P = 550 psia

Hydrogen: 405 lbmol/hr

Methane: 95 lbmol/hr

Benzene: 95 lbmol/hr

Toluene: 5 lbmol/hr

T = 200 F

Pdrop = 0

T = 100 F

P = 500 psia

P = 1 atm

Q = 0

Use the PENG-ROB Property Method When finished, save asfilename: BENZENE.BKP

FL1

COOL

FEED COOL

VAP1

LIQ1

FL2

VAP2

LIQ2

Benzene Flowsheet Conditions Workshop


10/20


Unit Operation Models

Objective:Review major types of unit operation models

Aspen Plus References:User Guide , Chapter 10, Unit Operation ModelsUnit Operation Models Reference Manual


11/20


Unit Operation Model Types

• Mixers/Splitters

• Separators• Heat Exchangers

• Columns

• Reactors• Pressure Changers

• Manipulators

• Solids• User Models

Reference: The use of specific models is best described by on-line help and thedocumentation. Aspen Plus Unit Operation Models Reference Manual


12/20


Model Description Purpose Use

Mixer Stream mixer Combine multiplestreams into onestream

Mixing tees, stream mixingoperations, adding heatstreams, adding work streams

FSplit Stream splitter Split stream flows Stream splitters, bleed valves

SSplit Substream splitter Split substream flows Solid stream splitters, bleed

valves

Mixers/Splitters


13/20



Flash2 Two-outlet flash Determine thermal

and phase conditions

Flashes, evaporators, knockout

drums, single stage separators,free water separations

Flash3 Three-outletflash

Determine thermaland phase conditions

Decanters, single stage separatorswith two liquid phases

Decanter Liquid-liquiddecanter

Determine thermaland phase conditions

Decanters, single stage separatorswith two liquid phases and no vapor phase

Sep Multi-outletcomponent

separator

Separate inlet streamcomponents into any

number of outletstreams

Component separation operationssuch as distillation and absorption,

when the details of the separation areunknown or unimportant

Sep2 Two-outletcomponentseparator

Separate inlet streamcomponents into twooutlet streams

Component separation operationssuch as distillation and absorption,when the details of the separation are

unknown or unimportant

Separators


14/20


Heat Exchangers

* Requires separate license


Heater Heater or cooler Determines thermal andphase conditions

Heaters, coolers, valves. Pumps andcompressors when work-related results are not

needed.HeatX Two-stream heat

exchanger Exchange heat between twostreams

Two-stream heat exchangers. Rating shell andtube heat exchangers when geometry is known.

MHeatX Multistream heatexchanger

Exchange heat between anynumber of streams

Multiple hot and cold stream heat exchangers.Two-stream heat exchangers. LNGexchangers.

Hetran* Interface to B-JACHetran program

Design and simulate shell andtube heat exchangers

Shell and tube heat exchangers with a widevariety of configurations.

Aerotran* Interface to B-JAC Aerotran program

Design and simulate air-cooled heat exchangers

Air-cooled heat exchangers with a wide varietyof configurations. Model economizers and theconvection section of fired heaters.

HXFlux Heat transfer calculation model

Models convective heattransfer between a heat sinkand a heat source.

Determines the log-mean temperaturedifference, using either the rigorous or theapproximate method.

HTRIIST* Interface to the ISTheat exchanger program from HTRI.

Design and simulate shell andtube heat exchangers

Shell and tube heat exchangers with a widevariety of configurations, including kettleboilers.


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Columns - Shortcut


DSTWU Shortcut distillationdesign

Determine minimum RR,minimum stages, and either actual RR or actual stagesby Winn-Underwood-Gilliland method.

Columns with one feed andtwo product streams

Distl Shortcut distillation

rating

Determine separation

based on RR, stages, andD:F ratio using Edmister method.

Columns with one feed and

two product streams

SCFrac Shortcut distillationfor petroleum

fractionation

Determine productcomposition and flow,

stages per section, dutyusing fractionation indices.

Complex columns, such ascrude units and vacuum

towers


16/20


Columns - Rigorous Model Description Purpose UseRadFrac Rigorous

fractionationRigorous rating and design for singlecolumns

Distillation, absorbers, strippers,extractive and azeotropic distillation,reactive distillation

MultiFrac Rigorousfractionation for complex columns

Rigorous rating and design for multiple columns of any complexity

Heat integrated columns, air separators,absorber/stripper combinations, ethyleneprimary fractionator/quench tower combinations, petroleum refining

PetroFrac Petroleum refiningfractionation

Rigorous rating and design for petroleum refining applications

Preflash tower, atmospheric crude unit,vacuum unit, catalytic cracker or coker fractionator, vacuum lube fractionator,ethylene fractionator and quench towers

BatchFrac* + Rigorous batchdistillation

Rigorous rating calculations for single batch columns

Ordinary azeotropic batch distillation,3-phase, and reactive batch distillation

RateFrac* Rate-baseddistillation Rigorous rating and design for singleand multiple columns. Based onnonequilibrium calculations

Distillation columns, absorbers, strippers,reactive systems, heat integrated units,petroleum applications

Extract Liquid-liquidextraction

Rigorous rating for liquid-liquidextraction columns

Liquid-liquid extraction

* Requires separate license+ Input language only in Version 10.0


17/20


Model Description Purpose UseRStoic Stoichiometric

reactor Stoichiometric reactor withspecified reaction extent or conversion

Reactors where the kinetics are unknown or unimportant but stoichiometry and extent areknown

RYield Yield reactor Reactor with specified yield Reactors where the stoichiometry and kineticsare unknown or unimportant but yielddistribution is known

REquil Equilibrium reactor Chemical and phaseequilibrium bystoichiometric calculations

Single- and two-phase chemical equilibriumand simultaneous phase equilibrium

RGibbs Equilibrium reactor Chemical and phaseequilibrium by Gibbsenergy minimization

Chemical and/or simultaneous phase andchemical equilibrium. Includes solid phaseequilibrium.

RCSTR Continuous stirred

tank reactor

Continuous stirred tank

reactor

One, two, or three-phase stirred tank reactors

with kinetics reactions in the vapor or liquidRPlug Plug flow reactor Plug flow reactor One, two, or three-phase plug flow reactors with

kinetic reactions in any phase. Plug flowreactions with external coolant.

RBatch Batch reactor Batch or semi-batchreactor

Batch and semi-batch reactors where thereaction kinetics are known

Reactors


18/20


Pressure Changers Model Description Purpose UsePump Pump or

hydraulicturbine

Change stream pressure whenthe pressure, power requirementor performance curve is known

Pumps and hydraulic turbines

Compr Compressor or turbine

Change stream pressure whenthe pressure, power requirementor performance curve is known

Polytropic compressors, polytropicpositive displacementcompressors, isentropiccompressors, isentropic turbines.

MCompr Multi-stagecompressor or turbine

Change stream pressure acrossmultiple stages with intercoolers.

Allows for liquid knockoutstreams from intercoolers

Multistage polytropic compressors,polytropic positive compressors,isentropic compressors, isentropicturbines.

Valve Control valve Determine pressure drop or valve coefficient (CV)

Multi-phase, adiabatic flow in ball,globe and butterfly valves

Pipe Single-segmentpipe

Determine pressure drop andheat transfer in single-segmentpipe or annular space

Multi-phase, one dimensional,steady-state and fully developedpipeline flow with fittings

Pipeline Multi-segmentpipe

Determine pressure drop andheat transfer in multi-segment

pipe or annular space

Multi-phase, one dimensional,steady-state and fully developed

pipeline flow


19/20


20/20


Model Description UsesCrystallizer Continuous Crystallizer Mixed suspension, mixed product removal (MSMPR)

crystallizeer used for the production of a single solid productCrusher Crushers Gyratory/jaw crusher, cage mill breaker, and single or

multiple roll crushers

Screen Screens Solids-solids separation using screens

FabFl Fabric filters Gas-solids separation using fabric filters

Cyclone Cyclones Gas-solids separation using cyclones

VScrub Venturi scrubbers Gas-solids separation using venturi scrubbers

ESP Dry electrostatic precipitators Gas-solids separation using dry electrostatic precipitators

HyCyc Hydrocyclones Liquid-solids separation using hydrocyclones

CFuge Centrifuge filters Liquid-solids separation using centrifuge filters

Filter Rotary vacuum filters Liquid-solids separation using continuous rotary vacuumfilters

SWash Single-stage solids washer Single-stage solids washer

CCD Counter-current decanter Multistage washer or a counter-current decanter

Solids

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actividades ASPEN