OPT800 Recovery

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OPT 800 Recovery is an advanced process control (APC) system for the control and monitoring of the recovery boiler. The system is based on the multivariable model predictive control technology and can be applied to recovery boilers from different vendors. OPT800 Recovery optimally manipulates the black liquor feed to the recovery boiler to maintain stable power. It responds to boiler load changes by manipulating the primary and secondary air flows while the tertiary air flow is manipulated in response to CO and O2 measurements. This results in improved efficiency and reduced emissions.

The OPT800 Recovery system has been implemented at pulp mill sites worldwide. It is a state-of-the-art APC application including installation, start-up, tuning and training.

  • State-of-the-art multivariable model predictive control
  • Load controls
  • Emission controls
  • KPI Dashboard and control usage reports
  • Day/Shift reports
  • Task oriented and user friendly customizable operator displays

  • Stable and optimized control of the burning process
  • Increased steam generation
  • Increased thermal efficiency
  • Increased interval between cleaning
  • Flue gas oxygen variation decrease (30-70%)
  • Reduced excess oxygen level (0.5 – 2.0% - units)
  • Reduced odor (H²S) emission (20-50%)
  • Reduced SO² emission (30-70%)
  • Increased reduction degree (1-7%- units)
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