Petro-SIM 7.0 Changes to Refinery Reactors

Aromatics Reactor

Usability improvements

Supports internal recycle mode in addition to once through operation
- Mode supports a makeup hydrogen stream and allows you to specify a recycle purity target
Wizard available to simplify setup of new cases
- Available from File – New – SIM Reactor Case

Calibration improvements

Usability improvements

Wizard available to simplify setup of new cases
- Available from File – New – SIM Reactor Case

Calibration improvements

Reactor now supports an automatic tuning mode as part of calibration
Mode solves using optimisation during the calibration process
- Allows auto-calibration of kinetics for major reactions
Mode configured on the reactor Calibration page
Works in conjunction with Data Set Analysis for looking across multiple sets of data

Catalyst handling

Content of separate catalyst.dat file now brought within the object to make it easier to manage ZSM-5 and CCM catalyst parameters for different FCC models
Can either edit parameter values directly in Petro-SIM or point to file
Catalyst parameters can be treated as a separate Publish/Subscribe category from others allowing reactor to subscribe to one channel for calibration factors and a separate channel for catalyst factors
Improvements to Ni Passivator Target to support Passivator to Ni Ratio determined from calibration
CDB Factors can now be saved in case, breaking dependance on separate CDB file
Number of CDB Catalysts in use at a time increased from 3 to 5
New tuning factor for makeup catalyst retention factor

Cracking

New Pore Accessibility Effect tuning parameters allowing better match to effluent back-end
Slurry T90 now explicitly tracked as calibration factor

Calibration options

ZSM-5 Handling

ZSM-5 Factors updated based on literature and experimental data
- New factors better reflect reactivity of current additives
- New factors better handle changes in ZSM-5 concentration versus operation at fixed concentrations
  - Two new methods added
- Additional calibration factors calculated and used as part of improving response

Riser Geometry

Enhancements to support more flexibility in riser specification and operation
- Risers have additional mid-riser feed injection point
- Risers can have different diameters through length with model supporting up to three sections
  - Allows model more accuracy in predicting catalyst residence time in the riser

Support added to handle calibration of operations with high C5 content in Wet Gas
Number of improvements to calibration robustness