AspenPlus燕化高级培训班

1、Course Agenda (1),User Interface Show improvements to the graphical user interface, including block and stream handling Basic Input Look at enhancements to Setup options, Components, and Physical Properties Unit Operations Review enhancements to columns, heat exchangers, and reactors; plus new manip

2、ulator blocks File Handling Illustrate new open, import, and export capabilities,Course Agenda (2),Sequential Modular (SM) Simulation Run flowsheets in SM mode Introduction to Equation Oriented (EO) Modeling Compare EO and SM solution strategies Basic EO Functionality Demonstrate the basic features

3、of EO modeling, including Spec groups and EO input Heat Integration Create component groups, flowsheet sections, and user connections Troubleshooting EO Simulations Troubleshoot common errors in EO simulation Equation Oriented Optimization Optimize a profit function,User Interface,Aspen Plus 11 Upda

4、te for Version 10 Users,Lesson Objectives,Show improvements to the graphical user interface, including block and stream handling.,Simulation Templates,Three new Simulation templates are provided: Aspen IPE Stream Properties Includes three expanded property sets Polymer with English and Metric units

5、of measurement Includes POLYMER and SEGMENT databanks from Polymers Plus Polymers Process type offers eight physical property methods No predefined Property sets,Refinery Templates (1),The new Refinery tab includes templates that allow for the integration of advanced refinery models, such as FCC, ca

6、talytic reformer, and hydrotreater in an Aspen Plus flowsheet.,Contains pre-selected components and thermodynamic options for specific refining process. Check the Preview window in the New dialog box or the Description sheet in the Setup Specifications form.,Refinery Templates (2),Pre-set Components

7、: Common components, such as H2O, N2, C1C8, or aromatics Re-order databank search list, beginning with ETHYLENE An incomplete assay named CRUDE Henry Comps group HENRY-1, if applicable Physical Properties options: Pre-selected Base Method, or Make recommendations for a specific unit modeling such as

8、 vacuum units; if a specific component such as H2 is present; or you have very heavy crudes New property sets that report properties unique to petroleum mixtures,Toolbars,The Detherm Internet toolbar button displays adifferent graphic in version 11.1 to reflect changes in the graphical user interfac

9、e; functionality is the same. Version 11.1 provides a brand new EO shortcuts toolbar, which displays buttons for the most common actions related to Equation Oriented modeling.,If you do not see either toolbar, select View/Toolbars from the menu bar and activate them here.,Model Library,Aspen Plus ve

10、rsion 11.1 offers a completely new look: Model Library block icons are displayed as three-dimensional objects as they are in the Process Flowsheet Diagram as well. The default block icons are no longer strictly a square with a description label. You have the capability to turn off the 3D look and vi

11、ew the icons strictly in two dimensions. You can change and save icons as defaults.,Simulation Tool Options (1),There are three new sheets in the Tools Options dialog box. These are: Styles Online Upward Compatibility Open this dialog box by selecting Tools/Options from the menu bar Changes made in

12、this dialog box become global defaults,Simulation Tool Options (2),Styles You can change the color, style, and terminator for material, heat, or work streams, connections, and measurements. You can toggle between two dimensions and three for the Model Library icons.,Simulation Tool Options (3),Onlin

13、e Enter the ProgID for running the simulation online Upward Compatibility Allows you to specify which components are maintained when importing a file into a new version; this includes databanks, property methods, etc.,Simulation Tool Options (4),Results View In addition to the parameters that could

14、be displayed in version 10.2 (temperature, pressure, mass flow rate, and duty), you can show: Vapor fraction Mole flow rate Volume flow rate Manipulate the number of significant digits by changing the number that precedes “f.”,Model Library Icon Defaults,You can save the current settings of the Mode

15、l Library icons as defaults for all subsequent simulations. For example, suppose you want the default icon for the Flash2 block to be H-DRUM (rather than V-DRUM as it is in the installed base version): 1.Click and choose H-DRUM from the available Flash2 configurations in the Model Library icon displ

16、ay. 2.Select Library / Save Icons. H-DRUM will now be the default Flash2 icon displayed on the Model Library bar for all simulations, new or existing ones.,Copying and Pasting Flowsheet Objects (1),You can copy and paste flowsheet objects while maintaining the integrity of the input data within the

17、input forms for the selected stream(s) and block(s). Highlight block(s) and/or stream(s). Choose Selected Copy from the Edit menu to make a copy of the objects within the displayed selection rectangle. Select Edit/Paste to paste the selected objects. You can also copy objects from one simulation int

18、o another.,You can copy any input data including Setup, Components, and Properties, etc. A shaded box denotes that no data within this folder can be copied/pasted. By default, the selected flowsheet objects, blocks and streams, are checked.,Copying and Pasting Flowsheet Objects (2),Copying and Pasti

19、ng Flowsheet Objects (3),The Resolve ID Conflicts dialog box appears when two or more objects share the same name. You must replace, merge, edit the ID, add a prefix or suffix, ignore, or undo the ID conflicts for the duplicate object names before pasting the selected objects on the flowsheet.,Inclu

20、ding/Excluding Flowsheet Objects (1),You can activate and deactivate simulation objects (blocks and streams) in both the sequential modular (SM) and equation oriented (EO) solution strategies. Select the block, right-click and choose: SM Deactivate to deactivate a block in SM mode EO Exclude to excl

21、ude a block in EO mode This allows you to focus on problem areas of a simulation by modifying or converging parts of a flowsheet at a time. You can also use these capabilities to easily simulate alternative process configurations.,Including/Excluding Flowsheet Objects (2),Aspen Plus intelligently de

22、activates other objects, which reference deactivated blocks or streams. Deactivated and excluded objects do not take part in a simulation, but they can still be examined and modified. In the equation oriented (EO) strategy, excluding objects removes the equations representing the excluded object fro

23、m the solution matrix. An EO excluded block is represented as a shaded square on the flowsheet,Basic Input,Aspen Plus 11 Update for Version 10 Users,Lesson Objectives,Look at enhancements to Setup options, Components, and Physical Properties.,Custom Units,You can now define additional units for any

24、physical quantity type through the Setup Custom Units sheet. Enter the multiplier and offset as to make this equation true: 1 custom unit = multiplier base units + offset,For example, if you wanted to define a foot in terms of inches, you would specify the base unit inch, multiplier 12, and offset 0

25、.,Descriptive Stream Names,You can now enter descriptive text for the stream names through the Stream Names button on the Setup Report Options Stream sheet. These names will appear in the Stream Descriptions section of the generated report (.rep) file. For each name, select the stream ID from the dr

26、opdown list and type in the desired description. You are limited to 78 characters.,Pure Component Properties,A new components Review button allows you to examine data from the databanks for the selected components. 15 new property sets of pure component and temperature-dependent data are generated i

27、n Input forms you can modify.,Component Databanks,The primary pure component databank is PURE11, which is compatible with Aspen Plus version 11.1. It contains parameters for over 1725 components. It is the main source of pure component parameters for the Aspen Physical Property System, and for most

28、calculations, the PURE11 databank contains all the property parameters you need. Open the Components Specifications Databank sheet to see available databanks.,Refining Applications (1),Aspen Plus 11.1 provides new component capabilities for ethylene and refining applications. These include: An Ethyl

29、ene databank containing pure component and binary parameters for ethylene applications Handling of petroleum properties for light-end components Graphical and calculation improvements for entering assay data Updated input and results forms New and improved Distillation curve conversion methods Integ

30、ration of Plot Wizard for assay data and results,Refining Applications (2),New version 11.1 Distillation curve conversion methods: ASTM D86 to True boiling point API87 API92 PML ASTM D2887 to TBP TBPWT ASTM D1160 to TBP API63 PML,Refining Applications (2),Use the Component Light-End Properties Speci

31、fication sheet to enter properties for the light-end components in assays. 1. Choose the Property from the Property type list. 2. Select the component from the Component list. 3. Enter a value for the petro-property in the Property Value field.,Assay Library Usability Updates,When you click the Assa

32、y Library button on the Components Assay/Blend folder, you can choose from one of two assay libraries: Aspen Plus or PAssMan. The Aspen Plus assay library is consistent with version 10.2. In version 11.1, assays are listed with extended names and a complete preview for easier selection. Each crude a

33、ssay provides: Geographic Source Distillation Curve Supplied Property Curves Supplied Source of Data,Assay Plot Wizard (1),You can now plot assay data through the Plot Wizard. This new functionality means that you do not have to run the file in Assay Data Analysis mode before generating TBP / ASTM D

34、86 plots. 1.Enter the distillation data in the Components Assays Dist Curve sheet, as usual. 2.When finished, select Plot Wizard from the Plot menu. 3.Click on the desired plot and click Next to continue.,Assay Plot Wizard (2),Plot generation will depend on the data you entered. That is, certain plo

35、ts will be inactive in the Plot Wizard Step 2 dialog box. For example, you cannot generate a Molecular Wt plot at this point without entering the related data. However, you can run the Plot Wizard after youve executed the simulation in Flowsheet or Assay Data Analysis run mode; plot the results on t

36、he Petro Characterization Results form.,Assay Plot Wizard (3),You can also open this Plot Wizard from the Streams Input or Results forms (if applicable). You can plot multiple streams from this form.,Physical Properties (1),New Physical Property methods for ethylene and refining applications include

37、: Maxwell-Bonnell property method for mixtures of hydrocarbons in vacuum and low pressure applications The Maxwell-Bonnell model for vapor pressure is used to compute liquid fugacity coefficient (K-values) Improved equation-of-state models for handling water-petroleum mixtures STMNBS2 is a new prope

38、rty method for the free-water phase APISOUR property method handles components other than water, ammonia, carbon dioxide and hydrogen sulfide,Physical Properties (2),Prop-Sets physical properties: A simplified water dew point for hydrocarbon systems (PH2OTDEW) Composition sums for a set of component

39、s, i.e., all C5 hydrocarbons (SUM-MLFR, SUM-MSFR, SUM-VLFR) Ratio of components subset A to base set of components, i.e., mole fraction of butadiene to all C4 hydrocarbons (RAT-MLFR, RAT-MSFR, RAT-VLFR) Conradsom carbon content (COCARBON), Bromine number (BROMINE), Asphaltene content (ASPHALTE), and

40、 Cetane number (CETANENO),Molecular Structure,You can view the molecular structure of a component if it exists in the databank or if you load the molecular structure from a file: Click Import Structure to load the structure from an MOL mole file created in a third-party molecular modeling program. C

41、lick Calculate Bonds to fill in the General sheet with the connectivity data from the molecular structure.,Detherm Internet Interface (1),The Aspen Plus graphical user interface to Detherm on the Internet has been updated in version 11.1. 1. Enter your components, then click the DETHERM Interface bu

42、tton on the toolbar. 2.Set Selected Components. 3.Choose the desired property from Available Properties list. 4.Click OK. You are connected to Detherm on the web. 5. Check the box of the data set you desire, and click Next.,6. Click on proceed to login and download the data cart. 7. Enter your user

43、ID information and password. The data are then transferred into Aspen Plus.,Detherm Internet Interface (2),Unit Operations,Aspen Plus 11 Update for Version 10 Users,Lesson Objectives,Review updates to Columns, Heat exchangers, and Reactors; plus new Manipulator blocks,Column Blocks,New Aspen Plus 11

44、.1 column features include: Sizing of 4-pass trays for all column types Version 10.2 supported only two passes on each tray Thermal tray efficiencies for the PetroFrac block accounts for thermal deviations from equilibrium Column Targeting tool provides debottlenecking capabilities for all column ty

45、pes,Thermal Tray Efficiencies in PetroFrac (1),Thermal tray efficiencies are used to model the thermal non-equilibrium effects found in large refinery columns, such as crude columns, catalytic crackers, and coker main fractionators. Thermal tray efficiency allows the vapor and liquid temperatures to

46、 be different (not at equilibrium), thus allowing for the calculation of both a compositional and a thermal deviation from equilibrium. In contrast, Murphree tray efficiencies assume thermal equilibrium between the vapor and liquid phases. Thermal efficiencies are defined from 0.0 to 1.0, with 1.0 c

47、orresponding to an ideal stage at thermal equilibrium.,Thermal Tray Efficiencies in PetroFrac (2),Recommendations Vapor thermal tray efficiencies should be used where high and/or superheated vapor flows dominate the column profile. Liquid thermal tray efficiencies should be used in the opposite situ

48、ation where high and/or subcooled liquid flows dominate the column profile. Only one of these two types of thermal efficiency can be used on any given section of the column.,These data are input on the Blocks Column Efficiencies Thermal sheet.,Column Targeting (1),The Column Targeting tool offers ca

49、pabilities for thermal and hydraulic analysis of distillation columns. During design or retrofit analysis of a process, these capabilities can be exploited to identify the targets for appropriate column modifications in order to: Reduce utilities cost Improve energy efficiency Reduce capital investm

50、ent (by improved driving forces) Facilitate column debottlenecking These capabilities are available for the RadFrac, MultiFrac, and PetroFrac column models.,Column Targeting (2),The thermal analysis capability is based on the concept of minimum thermodynamic condition for a distillation column. The

51、minimum thermodynamic condition pertains to thermodynamically reversible column operation. In this condition, a distillation column would operate at minimum reflux, with an infinite number of stages, and with heaters and coolers placed at each stage with appropriate heat loads for the operating and

52、equilibrium lines to coincide. In other words, the reboiling and condensing loads are distributed over the temperature range of operation of the column.,Column Targeting Plots (1),Stage-Enthalpy (Stage-H) or Temperature-Enthalpy (T-H) profiles for such a column therefore represent the theoretical mi

53、nimum heating and cooling requirements in the temperature range of separation. These profiles are called the Column Grand Composite Curves (CGCCs). Activate on the Column Report Property Options sheet.,Column Targeting Plots (2),The Plot Wizard offers four new plot types: CGCC (T-H): Temperature ver

54、sus Enthalpy CGCC (S-H): Stage versus Enthalpy Hydraulics Analysis: Thermodynamic Ideal Minimum Flow, Hydraulic Maximum Flow and Actual Flow for each Stage Exergy Loss Profile: Stage or Temperature versus Exergy Loss,Use the SRK Property Method,15 stages Feed stage 3 Top stage P = 200 kPa Distillate

55、 rate = 400 kmol/hr Reflux ratio = 7.5,Column Targeting Example,Flow = 1000 kmol/hr Temperature = 100C Pressure = 2.4 bar 0.2 Mole fraction of each: Heptane Octane NonaneDecane Pentadecane,COLUMN,FEED,OVHD,BTMS,Examine the configuration of this column and determine possibilities for design modificat

56、ion:,Results depend strongly on the selection of light key and heavy key components. They can be based on: User-defined Component split fractions K-values (default) Column composition profiles Specify on the Column Report Targeting Options sheet. Use the Column Report Targeting Specifications sheet

57、to specify parameters for the selected method (optional; except for when you select User-defined).,Component Selection,Column Targeting Applications,Column Grand Composite Curves help determine possible column modifications, including: Feed location Reflux ratio modifications Side condensing or rebo

58、iling Feed conditioning (heating or cooling) The Hydraulics Analysis and Exergy Loss profiles will help confirm the need for improvements to column design and operation.,Determining the Feed Location,Stage-H CGCC plots can identify distortions due to inappropriate feed placement. They are apparent a

59、s significant projections at the feed location (pinch point), due to a need for extra local reflux to compensate for the inappropriate feed placement.,A correctly placed feed at stage 7 removes the distortions in the Stage-H CGCC plot.,Modifying the Reflux Ratio,The horizontal gap between the T-H CGCC pinch point and the ordinate represents the scope for a reduction in reflux ratio. As the reflux ratio is reduced (while increasing the number of stages to preserve the separation), the CGCC will move towards the ordinate, thus reducing both the reboiler an