AN INTRODUCTION TO ASPEN Plus AT CITY COLLEGE Prepared by . H RINARD Department of Chemical Engineering November 1997(Revised october 1999) ASPEN Plus provided by Aspen Technology, Inc. Cambridge massachusetts 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 1 AN INTRODUCTION TO ASPEN Plus AT CITY COLLEGE Prepared by I. H. RINARD Department of Chemical Engineering November 1997 (Revised October 1999) ASPEN Plus provided by Aspen Technology, Inc. Cambridge, Massachusetts
WHAT IS ASPEN O A computer program for steady-state process simulation (aka. process Flowsheeting Q Developed for the simulation of E Chemical petrochemical processes E Coal-based processes E Petroleum Refining E Polymer Processes Q One of many commercially available flowsheeting programs such as E PRO I Simulation Sciences E HYSIM (Hyprotech E Chemcad(Chemstation) 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 2 WHAT IS ASPEN? uA computer program for steady-state process simulation (a.k.a. process Flowsheeting) uDeveloped for the simulation of ð Chemical & Petrochemical Processes ð Coal-based Processes ð Petroleum Refining ð Polymer Processes uOne of many commercially available flowsheeting programs such as ð PRO II (Simulation Sciences) ð HYSIM (Hyprotech) ð ChemCad (Chemstation)
HOW DOES ASPEN WORK? Basic unit is the block model E Unit operations Distillation Columns, Reactors, etc.) E Related operations such as piping Q User assembles flowsheet model by selecting and connecting appropriate Block models and specifying Block model parameters 0 ASPEN solves sequentially for output streams given input streams and Block model parameters 10/1899 ASPen Introduction 3
10/18/99 ASPEN Introduction 3 HOW DOES ASPEN WORK? uBasic unit is the BLOCK model ð Unit operations (Distillation Columns, Reactors, etc.) ð Related operations such as piping uUser assembles flowsheet model by selecting and connecting appropriate Block models and specifying Block model parameters uASPEN solves sequentially for output streams given input streams and Block model parameters
BLOCK MODEL Input streams Output Streams Model Physical Parameters Properties 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 4 BLOCK MODEL Input Streams Output Streams Model Parameters Physical Properties
i Process flow sheet St7 St6 StI St3 M E-1 R-1 St2 StIo Item ASPEN me Model M-1: Feed Mixer MIXER IR-I: Reactor RSTOIC I E-1: Condenser HEATER I V-1: Flash Drum FLASH2 I C-1: Compressor COMPR I P-1: Purge Point FSEP 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 5 M-1 P-1 R-1 C-1 V-1 St1 E-1 St2 St3 St4 St5 St6 St7 St8 St9 St10 Item ASPEN # Name Model M-1: Feed Mixer MIXER R-1: Reactor RSTOIC E-1: Condenser HEATER V-1: Flash Drum FLASH2 C-1: Compressor COMPR P-1: Purge Point FSEP Process Flow Sheet
MAJOR COMPONENTS OF ASPEN Unit operations(BLOCK) model library o Physical properties system E Physical properties models (density, enthalpy, VLE, etc.) E Pure component and binary pair databases E Estimation capability for missing values Q Flow sheet convergence capability for recycle processes Q Control capability Design Specs) 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 6 MAJOR COMPONENTS OF ASPEN u Unit operations (BLOCK) model library u Physical properties system ð Physical properties models (density, enthalpy, VLE, etc.) ð Pure component and binary pair databases ð Estimation capability for missing values u Flow sheet convergence capability for recycle processes u Control capability (Design Specs)
USEFUL FEATURES IN ASPEN ◆ Sensitivity analysis o Cost estimation and profitability evaluation Optimization Process flow diagram generation o Physical properties data regression 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 7 USEFUL FEATURES IN ASPEN u Sensitivity analysis u Cost estimation and profitability evaluation u Optimization u Process flow diagram generation u Physical properties data regression
ASPEN BLOCK MODEL LIBRARY I Mixers and splitters EMXER-Adds two or more streams together E ESPLIT-Splits a stream into two or more E SEP - Separates a stream component by component ◆ Flashes and heaters E FLASH2-Two outlet flash E FLASH3 Three outlet flash E HEATER- Heater/cooler E HEATX - Two stream heat exchanger E MHEATX- Multistream heat exchanger E DECANTER- Liquid-liquid decanter 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 8 ASPEN BLOCK MODEL LIBRARY I u Mixers and Splitters ð MIXER - Adds two or more streams together ð FSPLIT - Splits a stream into two or more ð SEP - Separates a stream component by component u Flashes and Heaters ð FLASH2 - Two outlet flash ð FLASH3 - Three outlet flash ð HEATER - Heater/cooler ð HEATX - Two stream heat exchanger ð MHEATX - Multistream heat exchanger ð DECANTER - Liquid-liquid decanter
ASPEN BLOCK MODEL LIBRARY II ◆ Reactors E RSTOIC- Stoichiometric reactor → RYELD- Yield reactor E REOUIL- Equilibrium reactor E RGIBBS- Equilibrium reactor B RCSTR -CSTreactor(requires kinetic model E RPLUG- Plug flow reactor(requires kinetic model B RBATCH- Batch reactor (requires kinetic model 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 9 ASPEN BLOCK MODEL LIBRARY II u Reactors ð RSTOIC - Stoichiometric reactor ð RYIELD - Yield reactor ð REQUIL - Equilibrium reactor ð RGIBBS - Equilibrium reactor ð RCSTR - CST reactor (requires kinetic model) ð RPLUG - Plug flow reactor (requires kinetic model) ð RBATCH - Batch reactor (requires kinetic model)
ASPEN BLOCK MODEL LIBRARY III ◆ Separators E DITL Shortcut distillation design E DISTWU -Shortcut distillation rating E RADFRAC- Rigorous distillation EXTRACT- Rigorous liquid-liquid extraction E RATEFRAC- Rate-based distillation E BATCHFRAC- Batch distillation N E PETROFRAC-Rigorous distillation for petroleum Reguires special license 10/1899 ASPen Introduction
10/18/99 ASPEN Introduction 10 ASPEN BLOCK MODEL LIBRARY III u Separators ð DISTIL - Shortcut distillation design ð DISTWU - Shortcut distillation rating ð RADFRAC - Rigorous distillation ð EXTRACT - Rigorous liquid-liquid extraction ð RATEFRAC - Rate-based distillation* ð BATCHFRAC - Batch distillation * ð PETROFRAC - Rigorous distillation for petroleum * Requires special license
