Petro-SIM 7.2 Changes to Refinery Reactors

Key Highlights

  • Introduced Renewable Diesel mode in DHTR-SIM to address corporate and legislative targets to introduce renewables for liquid fuels. KBC wants to support clients develop sustainable solutions
  • Range Checks and Error Messaging Improvements
  • REF-SIM dT/dRON Tuning Automation
  • ULSD Catalyst Deactivation Tuning
  • NHTR Light Feed (C4-) Handling
  • AROM-SIM, EBR-SIM, DC-SIM, and Furnace Model updates

FCC-SIM

  • Range Checks and Error Messaging Improvements
  • Bottoms density vs conversion tuning factor
  • Calibration Overrides for specifying strength of ZSM-5 effect
  • Product distillation handling improvements
  • Excel required calibration factors

Range Checks in FCC unit op

HXX-SIM

Renewable Diesel Mode in DHTR-SIM

  • Ability to co-process biofeeds (hydrogenated vegetable oil, animal fat, or other triglycerides from plant or animal sources) with refinery distillate streams into diesel hydrotreating model
  • Ability to synthesize bio feeds in Petro-SIM environment
    • Added most of the fatty acid and triglyceride molecules found in typical bio feeds as pure components in Petro-SIM pure component database
    • Ability to define feed via pure component concentrations, lipid number and free fatty acid content, or predefined or user-customized property template
  • Added olefin saturation for unsaturated FFAs and TGLs
  • Improved existing kinetics for bio reactions
    • More rigorous hydrogen balance
    • Heats of reaction for TGL cracking vs HDO vs DCX vs DCN now separate
  • Added cold flow corrections to account for n-paraffin production
Renewable Diesel Reactor setup

ULSD Catalyst Deactivation Tuning

  • Improvements in deactivation to account for more complex reaction network for ULSD applications (multiple pathways depending on conditions), allowing for tunable deactivation rate/WABT vs Age response

NHTR/CNHTR Light Feed Handling

  • HXX module can now handle C4- in feeds especially relevant for NHT/CNHT units

EBR-SIM

Updates to EBR-SIM

  • Updated H2 makeup strategy
  • Addition of yield reports
  • Option to add user cut points
  • Exposure of FCC CLO handling
  • Exposure of sedimentation calculations

REF-SIM

dT/dRON Tuning Automation

  • Standard dT/dRON starting value suggested by the model during calibration
  • Ability to automatically run set of predictions in the background to evaluate H2 yield versus RON response and suggest optimal dT/dRON value

AROM-SIM

Updated component balance report

  • Updated to only include C5+ yields and clarified basis for users
  • Rearrranged to group by PNA (with collapsible sections)
  • Switch from reporting on liquid vol% to mol% basis
  • Added A8, A9, and A10 isomers along with the A11 and A12 component groups that correspond to the AROM-SIM calibration factors

DC-SIM and Furnace Models

DC-SIM Calibration and Prediction Improvements

  • Impact of Feed T on coke yield - reducing furnace cracking sensitivity to feed temperature change
  • Added tuning parameter "Cracked Feed Reference K Factor" to adjust cracked feed determination

Furnace Model Improvements

  • Improved fouling kinetics in heaters with addition of Na fouling effect
  • Updated automatic calculation of yield unit factors during calibration