吸着プロセスモデリングシステム
Aspen ADSIM™ Application Aspen Adsim™ is literally applicable for nearly all kinds of adsorption processes Bulk Separation Air (Nitrogen/Oxygen), Paraffin, Aromatics, Hydrocarbons Purification Hydrogen Natural Gas Sweetening Drying Alcohol Dewatering Industrial Gases Fractionation & Dew Pointing Petroleum, Rare & Industrial Gases VOC & Environmental Emission Control Solvent Recovery Odor Control Water Treatment Adsorptive Reaction & Reactive Adsorption
Overview Aspen Adsim™ is an easy-to-use flowsheet simulator for the design, simulation and optimization of industrial adsorption processes including refinery hydrogen purification, air separation, oxygen production, drying, VOC emission control, solvent recovery, and reactive adsorption processes, etc. It is well-proven product that allows user to develop and identify optimal adsorbents, design better process cycle, and improve plant operations. Since 1991, Aspen Adsim™ has been uniquely recognized as the only one commercial process simulator in adsorption. At present, it serves more than 50 organizations world wide including Praxair, BOC, Air Products, UOP, and Los Alamos National Laboratory, etc. Easy Simulation and Cyclic Process Management Aspen Adsim™ provides Cycle Organizer, which supports user to construct his/her process cycle very easily therefore the user can test process performance quickly. A little more technically speaking, Cycle Organizer handles cyclic events (such as process condition change, valve switching, flow reversal, etc) during dynamic simulation. In addition, user can define any number of cycles, each containing any number of process steps (such as production, backfill, pressurization, equalization and purge), and the duration of each process step can be controlled by either timer or any monitored event. Besides, any ramped changes during process can easily be introduced by Cycle Organizer. Wide Choice of Modeling Assumptions Including Adsorption Isotherms Due to the dedicated experiences over 15 years of serving various industries as well as academic institutes, Aspen Adsim™ supports many featured adsorption theories in conjunction with equipment and adsorbent packing geometries, multiple adsorbents layered bed, axial and radial dispersions and mass/energy/momentum balances. Column Configuration within Aspen ADSIM
In addition, Aspen Adsim™ allows user to select various sorption rate models including rigorous particle diffusion models with pore, surface and combined diffusion resistance coefficients. As for adsorption equilibrium prediction, Aspen Adsim™ supports wide range of standard isotherms from pore filling theory, e.g. Dubinin isotherms, to thermodynamic equilibrium models, e.g. Ideal Adsorbed Solution Theory, with some more advanced technique such as extra consideration of gas phase non-ideality and isotherm-type-free option. Furthermore, with a little amount of effort, the user can include additional equations to implement custom models for sorption rate and equilibrium isotherm – the AspenTech technical support team can help with such customizations on request. Parameter Estimation from Process/Experimental Data Aspen Adsim™ provides comprehensive estimation tool to determine key design parameters, such as heat and mass transfer coefficients as well as equilibrium constants, through regression against either dynamic or static experimental data. Dynamic Estimation of Mass Transfer Coefficients from Breakthrough Data.
Features Adsorption Bed Model Axial (1-D) Model Axial + Radial (2-D) Model Dispersion Models Different Packing Geometry Variable Bed Geometry Multiple Adsorbent Layers Multiple Beds Simulation Operational Unit Models Valves, Voids, Tanks, Pipe, Streams, Control, Interaction Unit, etc. Sorption Rate Model Lumped Model (LDF) Diffusion Models (Pore, Surface, Combined) Customized User Model Parameter Estimation Physical Properties Cycle Organizer & Task Manager Flowsheet Export Direct CSS Determination
Isotherm Library Aspen Adsim™ supports wide range of isotherms. Henry and Linear BET and Multilayer BET Langmuir and Dual Site Langmuir Langmuir-Freundrich
Process Integration Aspen Adsim™ uses Aspen Properties™ for rigorous and consistent physical property data. In addition, Aspen Adsim™ flowsheets can be combined with Aspen Dynamic™ flowsheets, e.g. the simulation of upstream reactors or for connecting pre-purification unit to a downstream distillation train. Direct Determination of Cyclic Steady-State Complete discretization of space and time for an adsorption cycle enables user to determine the cyclic steady-state condition without dynamic simulation cycles. This modeling paradigm is currently recognized as the most enhanced feature of Aspen Adsim™ that allows use of steady-state estimation and perturbation studies to aid in the rapid design and optimization of adsorption cycles. Furthermore, the flowsheet can be exported to Aspen Plus® therefore user can have full benefit of steady-state modeling for their plant simulation with rigorous adsorption process models.
Toth and Myers Dubinin-Astakhov IAST (Ideal Adsorbed Solution Theory) with Non-Ideal Gas Phase Effect GEM (Generalized Equilibrium Model) Etc. Customized User Model
Typical Workflow with Aspen ADSIMTM
Numerical Methods Aspen Adsim™ employs various PDE discretization methods to solve the sets of PDE models for adsorption beds. Finite element methods Orthogonal Collocation on Finite Elements Flux Limiting Schemes
Customers Currently, Aspen Adsim™ serves more than 50 organizations worldwide. Includes: Praxair BOC Air Products and Chemical UOP Los Alamos National Laboratory (US DOE) Many others.
General Data Requirements For the simulation of an industrial PSA process, following design information is generally required for setting up an Aspen AdsimTM simulation flowsheet: Adsorbent / Packing – Particle Size, Densities, Bed Voidage, Layer Geometry Equilibrium Isotherms – Data or Model Sorption Rate – Data or Model Process Cycle Information – Steps, Step time, Pressure Swing History Process Control Requirements –Valve Controls, Product Requirements Application Example No.1 Hydrogen Purification Process in Refinery Plant
Application Example No.2 VOC Adsorption and Column Regeneration by Hot N2 Purge (TSA)
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システム要求 ハードウェア CPU：Intel Pentium Processor 4 1.7GHz 以上推奨 物理メモリ：最低 512MB、1GB
Application Example No.3
以上推奨 モニタ：解像度 1024ｘ768 以上
Propane/Propylene Separation by PSA ソフトウェア OS:：Windows 2000 Professional, Server[SP3 以上] Windows XP Professional [SP1] ※バージョンによっても異なります。 詳細はお問い合わせ下さい。
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