You are here: Industries >> Chemical & Refining
 
     
 
 Overview
 Building Control
 Oil & Gas
 Chemical & Refining
 Steel & Metal
 Food Processing
 Power & Utilities
 Space & Aerospace
 Semiconductor
 Forest Products
 Pharmaceutical & Biotech
 Materials & Others
 
 
Chemical & Refining
 
     
 
Operating Unit / Process What to Control Why Is It Difficult Which MFA to Use
Distillation columns

Application Sheet
Plate & bottom temp 1-input-2-output process 2x1 MFA
Level Avoid flooding or drying Robust MFA
Pressure Nonlinear Nonlinear MFA
Flow Nonlinear Nonlinear MFA
Reactors

Application Sheet
Reactor temperature Nonlinear, time-varying, large dynamic changes Robust MFA
Heating/cooling loop Split-range gain changes Nonlinear MFA
Refining furnace

Application Sheet
Oil outlet temperature Large time delays Anti-delay MFA
Zone temperature Multiple zones MIMO MFA
Combustion Optimal fuel-air-ratio SISO MFA
Coking furnace

Application Sheet
Oil outlet temperature Multiple passes MIMO MFA
Combustion Optimal fuel-air-ratio SISO MFA
Chemical production

Request white paper
Chemical strength or concentration Large time delays Anti-delay MFA
Air separation unit

Application Sheet
Article
HP column reflux level Time-varying, large disturbances Robust MFA
Ammonia plant

Request white paper
N-H ratio outer loop Large time delays Anti-delay MFA
N-H ratio inner loop Time varying SISO MFA
Chemical concentration

Application Sheet
pH control High accuracy pH control MFA pH or
Anti-delay MFA pH
Wastewater treatment

Application Sheet
pH control Large gain changes in Log scale, large delay time MFA pH or
Anti-delay MFA pH
Catalyst or powder conveyor process

Vacuum pressure Large time delays Anti-delay MFA
Heat-exchangers

Request white paper
Temperature Interactions among temperature points MIMO MFA or FD/FF MFA
 
     
  © 2014 CyboSoft, General Cybernation Group, Inc.
Home | Search | Site Map | Legal | Contact Us