.23-6CreatingProfile-Data Sets23-7IdentifyingProfileVariablesEntering the Measured Profile-Data.23-7Defining Data-Fit Regression Cases..23-8.23-9CreatingData-FitRegressionCases..23-9ConvergenceParameters..23-10AdvancedParameters.23-12Data-Fit Numerical Formulation.23-13EnsuringWell-FormulatedData-FitProblems.23-14Bound Factor...Estimating Unmeasured Variables..23-14.23-15Sequencing Data-Fit...23-15UsingData-FitResults.Troubleshooting...23-16.24-1Chapter24Transferring Information Between Streams orBlocks.24-1Defining a Transfer Block....24-2Creating a Transfer Block...24-2CopyingFlowsheetVariables.24-3Copying Streams...24-3Copying Stream Flow...24-3Copying Substreams..24-4CopyingBlockorStreamVariables..24-4SpecifyingTransferBlockExecution24-5Entering Flash Specifications for Destination Streamhapler25Balance Blocks.25-1..25-1Defining a Balance Block ....25-2Creating a Balance Block...25-3SpecifyingBlocksandStreamsforBalanceCalculations..25-4Specifying and Updating Stream Variables....25-4Convergence Parameters....25-5SequencingBalanceBlocks.FlashSpecifications25-6.25-6Material and Energy Balance Equations.Chapker26Case Study26-1.26-1UsingCaseStudyCreating a Case Study...26-1Identifying Case Study Variables..26-2..26-2Specifying Valuesfor Case StudyVariables..26-3Resetting Initial Values....26-4EnteringaDescription..26-4SpecifyingReportOptionsforCaseStudiesChapker27.27-1Specifying Reactions and Chemistry..AboutReactionsandChemistry.27-1Aspen Plus User GuideContents-viVersion 10.1-0
Contents-vi Aspen Plus User Guide Version 10.1-0 Creating Profile-Data Sets.23-6 Identifying Profile Variables .23-7 Entering the Measured Profile-Data .23-7 Defining Data-Fit Regression Cases .23-8 Creating Data-Fit Regression Cases.23-9 Convergence Parameters.23-9 Advanced Parameters.23-10 Data-Fit Numerical Formulation .23-12 Ensuring Well-Formulated Data-Fit Problems .23-13 Bound Factor.23-14 Estimating Unmeasured Variables.23-14 Sequencing Data-Fit.23-15 Using Data-Fit Results.23-15 Troubleshooting .23-16 Chapter 24 Transferring Information Between Streams or Blocks .24-1 Defining a Transfer Block.24-1 Creating a Transfer Block.24-2 Copying Flowsheet Variables .24-2 Copying Streams.24-3 Copying Stream Flow.24-3 Copying Substreams .24-3 Copying Block or Stream Variables.24-4 Specifying Transfer Block Execution .24-4 Entering Flash Specifications for Destination Streams.24-5 Chapter 25 Balance Blocks.25-1 Defining a Balance Block .25-1 Creating a Balance Block.25-2 Specifying Blocks and Streams for Balance Calculations.25-3 Specifying and Updating Stream Variables.25-4 Convergence Parameters .25-4 Sequencing Balance Blocks.25-5 Flash Specifications.25-6 Material and Energy Balance Equations.25-6 Chapter 26 Case Study .26-1 Using Case Study .26-1 Creating a Case Study.26-1 Identifying Case Study Variables.26-2 Specifying Values for Case Study Variables.26-2 Resetting Initial Values.26-3 Entering a Description.26-4 Specifying Report Options for Case Studies .26-4 Chapter 27 Specifying Reactions and Chemistry .27-1 About Reactions and Chemistry .27-1
.27-2Reactions.Chemistry.27-2AboutElectrolytesChemistry.27-2Specifying Electrolytes Chemistry..27-3.27-4DefiningStoichiometryforElectrolytesChemistryDefiningEquilibriumConstants forElectrolytes Chemistry..27-6SpecifyingPowerLawReactionsforReactorsandPressureRelief27-8Systems....27-8EquilibriumReactions(forRCSTRonly)Rate-Controlled Reactions..27-1027-13Reactions WithSolids.27-13StoichiometryandReactionRate...Volume Basis for Concentrations...27-14Specifying LHHWReactions for Reactors and Pressure Relief..27-14Systems......27-15EquilibriumReactionsforLHHW(forRCSTRonly).....27.15Rate-ControlledReactionsforLHHW.....27-18SpecifyingReactionsforReactiveDistillation....27-19Equilibrium Reactions..Rate Controlled Reactions......27-21.27-24Fractional Conversion Reactions (for RadFrac only)....27-25Salt PrecipitationReactions (for RadFrac only)..27-27Using a User-Kinetics Subroutine..Chapter28.28-1PropertySets.28-1AboutPropertySets..28-2DefiningaPropertySet..28-3Using the Search Dialog Box..28-4SpecifyingPhaseQualifiers...28-4Specifying Temperature and Pressure Qualifiers.28-7UserDefinedProperties..29-1hapter29AnalyzingProperties..29-2About Property Analysis...29-2Generating Property Analyses Interactively.29-3PureComponent Properties....29-7Properties forBinary Systems...29-16Residue Curves...29-18StreamProperties.29-22GeneratingPropertyAnalysesUsingFormsCreating A Property Analysis Using Forms.29-23Pure..29-23Binary.29-23Generic...29-23Pressure-Temperature Envelopes..29-29..29-34Residue Curves..Property Methods Specifications for Property Analysis...29-35.29-36Examining Property Analysis Results..Aspen Plus User GuideContents-viiVersion 10.1-0
Aspen Plus User Guide Contents-vii Version 10.1-0 Reactions.27-2 Chemistry .27-2 About Electrolytes Chemistry.27-2 Specifying Electrolytes Chemistry.27-3 Defining Stoichiometry for Electrolytes Chemistry.27-4 Defining Equilibrium Constants for Electrolytes Chemistry.27-6 Specifying Power Law Reactions for Reactors and Pressure Relief Systems.27-8 Equilibrium Reactions (for RCSTR only).27-8 Rate-Controlled Reactions.27-10 Reactions With Solids 27-13 Stoichiometry and Reaction Rate.27-13 Volume Basis for Concentrations.27-14 Specifying LHHW Reactions for Reactors and Pressure Relief Systems.27-14 Equilibrium Reactions for LHHW (for RCSTR only) .27-15 Rate-Controlled Reactions for LHHW .27-15 Specifying Reactions for Reactive Distillation.27-18 Equilibrium Reactions .27-19 Rate Controlled Reactions .27-21 Fractional Conversion Reactions (for RadFrac only) .27-24 Salt Precipitation Reactions (for RadFrac only).27-25 Using a User-Kinetics Subroutine.27-27 Chapter 28 Property Sets .28-1 About Property Sets.28-1 Defining a Property Set.28-2 Using the Search Dialog Box.28-3 Specifying Phase Qualifiers.28-4 Specifying Temperature and Pressure Qualifiers.28-4 User Defined Properties.28-7 Chapter 29 Analyzing Properties .29-1 About Property Analysis .29-2 Generating Property Analyses Interactively .29-2 Pure Component Properties .29-3 Properties for Binary Systems.29-7 Residue Curves.29-16 Stream Properties .29-18 Generating Property Analyses Using Forms .29-22 Creating A Property Analysis Using Forms.29-23 Pure.29-23 Binary .29-23 Generic.29-23 Pressure-Temperature Envelopes.29-29 Residue Curves.29-34 Property Methods Specifications for Property Analysis.29-35 Examining Property Analysis Results.29-36
References..29-36Chapler30EstimatingPropertyParameter30-1AboutPropertyEstimation..30-1Property Estimation on a Standalone Basis.30-2PropertyEstimationinaFlowsheet,PropertyAnalysis,PROPERTIES.30-2PLUS,orDataRegressionRun...30-2What Property Parameters Can Aspen Plus Estimate?....30-7Required Information for Parameter Estimation....30-7DefiningMolecularStructureUsingtheGeneral Method...30-8Atoms Numbers and Types ...Defining Molecular Structure Using Method-Specific Functional Groups..30-9IdentifyingParameterstobeEstimated..30-11EstimatingPureComponentParameters....30-13..30-15EstimatingTemperature-DependentProperties..EstimatingBinaryParameters...30-16Estimating UNIFAC Group Parameters....30-18...30-18UsingExperimentalDatatoImproveEstimatedParameters....30-21Comparing Estimated Parameters to Experimental Data....30-22Examining Parameter Estimation Results ...30-23Using Estimated Parameters...30-24Saving Estimation Results Automatically..30-24Not Saving Estimation Results AutomaticallyChapter3131-1RegressingPropertyData..31-2Setting Up a Regression...31-2Selecting a Property Method.....31-3Entering Supplemental ParametersFitting Pure Component Data....31-3EnteringPureComponentData..31-.4Fitting Phase Equilibrium and Mixture Data .....31-5.31-5Entering Phase Equilibrium and MixtureData..31-8GeneratingBinary VLE and LLEData.Entering Standard Deviations of Measurements..31-9.31-10Plotting Experimental Data....31-11FormulatingaRegression Case.31-12Specifying Parameters to be Regressed...31-13ThermodynamicConsistencyTestforVLEData..31-14EvaluatingtheAccuracyofKnownModelParameters.31-15Running the Regression...31-15Using Regression Results.....31-15Examining Regression Results....31-17Plotting Regression Results...ComparingResults from Several Cases..31-18UsingRegressionResultsinaFlowsheetRun..31-1931-19RetrievingDataFromDETHERMandtheInternet..Aspen Plus User GuideContents-viiVersion10.1-0
Contents-viii Aspen Plus User Guide Version 10.1-0 References .29-36 Chapter 30 Estimating Property Parameters .30-1 About Property Estimation.30-1 Property Estimation on a Standalone Basis .30-2 Property Estimation in a Flowsheet, Property Analysis, PROPERTIES PLUS, or Data Regression Run.30-2 What Property Parameters Can Aspen Plus Estimate?.30-2 Required Information for Parameter Estimation.30-7 Defining Molecular Structure Using the General Method .30-7 Atoms Numbers and Types .30-8 Defining Molecular Structure Using Method-Specific Functional Groups.30-9 Identifying Parameters to be Estimated.30-11 Estimating Pure Component Parameters .30-13 Estimating Temperature-Dependent Properties .30-15 Estimating Binary Parameters.30-16 Estimating UNIFAC Group Parameters.30-18 Using Experimental Data to Improve Estimated Parameters.30-18 Comparing Estimated Parameters to Experimental Data.30-21 Examining Parameter Estimation Results .30-22 Using Estimated Parameters.30-23 Saving Estimation Results Automatically.30-24 Not Saving Estimation Results Automatically .30-24 Chapter 31 Regressing Property Data .31-1 Setting Up a Regression.31-2 Selecting a Property Method.31-2 Entering Supplemental Parameters .31-3 Fitting Pure Component Data .31-3 Entering Pure Component Data.31-4 Fitting Phase Equilibrium and Mixture Data .31-5 Entering Phase Equilibrium and Mixture Data.31-5 Generating Binary VLE and LLE Data .31-8 Entering Standard Deviations of Measurements.31-9 Plotting Experimental Data.31-10 Formulating a Regression Case.31-11 Specifying Parameters to be Regressed.31-12 Thermodynamic Consistency Test for VLE Data .31-13 Evaluating the Accuracy of Known Model Parameters .31-14 Running the Regression.31-15 Using Regression Results.31-15 Examining Regression Results.31-15 Plotting Regression Results.31-17 Comparing Results from Several Cases .31-18 Using Regression Results in a Flowsheet Run.31-19 Retrieving Data From DETHERM and the Internet.31-19
Chapter32Petroleum Assays and Pseudocomponents.32-1AboutADA/PCS32-1Using ADA/PCS...32-2..32-2Creating Assays..DefininganAssayUsingtheComponentsSpecifications SelectionSheet....32-3.32-3DefininganAssayUsingtheAssay-BlendObjectManager.32-4EnteringAssayData.32-4EnteringaDistillationCurveandBulkGravityValueEnteringaGravityCurve.32-5.32-5Entering a MolecularWeight Curve.32-6EnteringLight-EndsAnalysis..32-6EnteringPetroleumPropertyCurves.32-7EnteringViscosityCurves..32-7Creating a Blend.DefiningaBlend UsingtheComponents SpecificationsSelection.32-8Sheet.32-9Defining a Blend Using the Assay-Blend Object Manager...32-9EnteringBlendSpecifications...32-9Specifying Assay Analysis Options..32-10ModifyingPetroleumPropertyDefinitions.32-11AboutPseudocomponents..32-12EnteringSpecificationsforGenerationofPseudocomponentsDefiningPseudocomponentsandEnteringPseudocomponentProperties..32-14EnteringBasicPropertiesforPseudocomponents.32-14Entering Temperature-Dependent Properties for Pseudocomponents32-15AboutPseudocomponentPropertyMethods32-16Creating Pseudocomponent Property Methods.32-17.32-18Defininga NewPetroleum Property..32-19ExaminingADA/PCSResults..32-19Examining ADAResults...32-20ExaminingPseudocomponentPropertyResults.IndexAspen Plus User GuideContents-ixVersion 10.1-0
Aspen Plus User Guide Contents-ix Version 10.1-0 Chapter 32 Petroleum Assays and Pseudocomponents .32-1 About ADA/PCS .32-1 Using ADA/PCS .32-2 Creating Assays .32-2 Defining an Assay Using the Components Specifications Selection Sheet .32-3 Defining an Assay Using the Assay-Blend Object Manager .32-3 Entering Assay Data .32-4 Entering a Distillation Curve and Bulk Gravity Value.32-4 Entering a Gravity Curve.32-5 Entering a Molecular Weight Curve .32-5 Entering Light-Ends Analysis.32-6 Entering Petroleum Property Curves.32-6 Entering Viscosity Curves .32-7 Creating a Blend.32-7 Defining a Blend Using the Components Specifications Selection Sheet .32-8 Defining a Blend Using the Assay-Blend Object Manager.32-9 Entering Blend Specifications.32-9 Specifying Assay Analysis Options.32-9 Modifying Petroleum Property Definitions.32-10 About Pseudocomponents.32-11 Entering Specifications for Generation of Pseudocomponents .32-12 Defining Pseudocomponents and Entering Pseudocomponent Properties .32-14 Entering Basic Properties for Pseudocomponents .32-14 Entering Temperature-Dependent Properties for Pseudocomponents32-15 About Pseudocomponent Property Methods .32-16 Creating Pseudocomponent Property Methods .32-17 Defining a New Petroleum Property .32-18 Examining ADA/PCS Results .32-19 Examining ADA Results.32-19 Examining Pseudocomponent Property Results .32-20 Index .i
Contents-xAspen Plus User GuideVersion 10.1-0
Contents-x Aspen Plus User Guide Version 10.1-0