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 7.40 is the UNIFAC (NIST) and the ability to export any sep-file as CAPE-OPEN Property Package into other compliant software such as Aspen Plus, UNISIM Design, Pro/II, gProms, ProSim, COMSOL, etc.
Dividing Wall Columns (DWC) and Modeling Maldistribution
ChemSep/PCM or Parallel Column Model will be introduced in the 2018 release of ChemSep (v8.0). It can ease the design of energy saving DWC configuration and assess what maldistribution costs you in column performance, as demonstrated at the Spring AIChE 2018 meeting in Orlando as well as the Annual 2017 CO-LaN meeting in London and the 2017 AIChE Fall Meeting.
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.