Chemstations Inc., Houston, TX, USA. See also: http://www.chemstations.com

CC-ReACS

CC-ReACS is a flexible and easy to use Dynamics and Reaction simulator. Fully integrated with CHEMCAD, it allows preparing the initial state condition with the steady-state part of the system, and continuing the calculations in dynamics. CC-ReACS dynamic part can be seamlessly integrated with CHEMCAD flowsheets. This module also shares with CHEMCAD databanks, thermodynamics, utilities, and equipment sizing routines.

Not only reactions system can be studied. Any steady state flowsheet can be converted to a dynamic one. Only exception is dynamic distillation system, for which you need the CC-DCOLUMN module.

• Applications

  • Production scale-up
  • Accelerated process design
  • Set-point calculation
  • Controller tune-up
  • HAZOP
  • Cooling system failures
  • Optimization
  • Operator training
  • Targeting laboratory experiments

• Chemical design

  • Up to 200 species and up to 100 simultaneous reactions
  • Choice of Arrhenius or Langmuir-Hinshelwood rate equation forms
  • Regression of kinetic process data

• Vessel Reactor design

  • Multiple coils and jackets
  • Service or process side heat exchangers and electrical heaters
  • Heat transfer rate calculation; includes calculation of process and service side film coefficients
  • Vapor and liquid draws permitted
  • Batch, semi-batch, or continuous non-steady state operation
  • Vessel pressurization calculations
  • Automatic two-phase relief system calculations after DIERS

• Dynamic Vessel design

  • Complete dynamics of a process vessel
  • Isothermal or isobaric operation, or TPVH calculated
  • Regulated by control system, vapor vent or liquid overflow
  • Vessel sizing option
  • Automatic two-phase relief system calculations according to DIERS

• Control System dynamics

  • User specified PID loops
  • Multiple ramp or step changes in setpoint
  • Control of reactor or jacket temperature differential
  • PID Controller model
  • Control Valve model
  • Cascade control
  • User-configurable heat-cool-chill system with safety interlocks

• Auxiliary equipment

  • Any unit operation may be used within the dynamic flowsheet to flexibly model the process, e.g., heat exchanger, mixer, divider, separator, valve, pump, pipe, etc.

• Thermodynamics and Physical Property Data

  See: CHEMCAD

• Calculations

  • Initial conditions can be calculated in steady-state
  • Multiple batch operation steps with stop conditions defined by the user
  • Calculation results plotted in run-time for selected variables
  • Parameters of any unit operation or stream can be recorded in time
  • Parameters of complete process can be recorded at pre-determined timesteps
  • Dynamic simulation can be stopped at any time, the results reviewed, and the simulation can be carried on

• Regression

  See: CHEMCAD

  • Calculation of kinetic parameters from concentration, temperature, volume, and/or heat released (Qr) data