ChemSep is a column simulator for distillation, absorption, and extraction operations. It combines the classic equilibrium stage column model with a nonequilibrium (rate-based) column model in one easy and intuitive interface. Test-drive the equilibrium column model and convince yourself with the free ChemSep LITE with up to 40 components and 300 equilibrium stages using a database covering 400+ chemicals. New in release 8 is the capability to solve Dividing Wall Columns (DWC). As with all releases of ChemSep LITE this will be CAPE-OPEN compatible so you can model simple DWCs in your favorite flowsheet simulation package (the image below shows the DWC model being used in COCO). Just be aware that the DWC model in this release of LITE has some limitations: one wall only, and there is no heat transfer across the wall. New in release 8.2 is the ability to have more than one condenser or reboiler. Our industrial version will be able to handle multiple parallel walls which can be used to design more complex and higher energy saving DWC configurations. It also can be used to assess what maldistribution costs you in column performance.
Industrial Strength Solver
ChemSep computation speed remains high even when including tens of compounds. With our intuitive and easy to use interface you will solve your separations problems more rapidly than ever before. ChemSep has been tested with many difficult industrial columns such as demethanizers, debutanizers, refluxed absorbers, azeotropic and extractive distillation; all run robustly without requiring the user to make any initial guesses.
Versatile and Customizable
Few standalone column simulators run inside other simulation environments, but ChemSep does! Using CAPE-OPEN technology ChemSep can run as a column model inside all major compliant flowsheeting packages, using their thermo and properties. However, ChemSep 7 now also exports its own extensive thermodynamic and physical property methods as a CAPE-OPEN Properties Package (CS/COPP), bringing various group contribution methods such as the Predictive SRK and the Universal Mixing Rule EOS methods that deploy modified UNIFAC to any compliant flowsheet.
Comprehensive and In-depth Modelling
ChemSep rate-base model includes more validated mass transfer coefficient, pressure drop, and capacity models than any other program. The integrated design mode allows you to include nonequilibrium columns in flowsheets at the conceptual design stage, including industrial vendor design methods and pressure drop models for trayed and packed columns. It offers a wide variety of ways to analyze simulation results, such as McCabe-Thiele and operational diagrams, and includes a completely configurable export mode that write results to Excel in just the way you want.