APC

  • Application of Model Predictive Controller (MPC) software package HIECON-I codeveloped by by France Sherpa Eng. and
       Infotrol Technology CO., Ltd.

NCC Heater change

  • Target System
  • Furnace Heater 14 unit
  • Excess O2 Control
  • Application Result
  • HOT to COLD / COLD to HOT Section
  • Air Flow : Smooth switch
  • COT : COT deviation decrease
  • ExO2 : Stabilization
  • Pressure : deviation decrease
  • Feed IN/ Feed Cut Section
  • NAP Flow Stabilization
  • COT deviation decrease
  • HOT to COLD Section
  • COLD to HOT Section

OCU(Olefins Conversion Unit) plant

  • APC Target System
  • Deethylenizer
  • Depropylenizer
  • TBA Column
  • DME Column
  • C+ Separation Column
  • Application Result
  • After APC Excutation STM Usage Reduction
  • AI/STM Usage Comparison

BD/BTX plant

  • APC Target System
  • BD Plant
  • Extractive Distillation Column
  • Stripping Column
  • BTX Plant
  • Extractor
  • Stripper
  • Recovery Tower
  • Application Result
  • BD Plant
  • Process operation deviation decreas
                    max 51.9% decrease
  • BTX Plant
  • Master & Slave operation in optimum range
  • BD Plant Control
  • BTX Plant Control

SSBR plant

  • VOA Target System
  • Reactor
  • Real-time MV/VINYL/BETA estimation
  • VOA estimation result comparison
  • Regression Analysis Result
  • R2(coefficient of determination) = 0.936
  • Simulation result reliability 93.6%
  • VOA Bias-Update System
  • VOA Bias-Update System Necessity
  • Compensate MV Deviation due to
                    measurement correction
  • Compensate MV change due to
                    unknown parameter
  • Variant System Characteristic Consideration
  • Pre-requirement for Bias-Update System
  • Lab data high reliability