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OPT800 Caust

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OPT 800 Caust is an advanced process control (APC) system for the control and monitoring of causticizing process. The system is based on the multivariable model predictive control technology and can be applied to equipment from different vendors. The OPT800 Caust control functions stabilize the white liquor production by controlling the green liquor TTA, causticizing efficiency and production rate changes.

OPT800 Caust is implemented in the ABB 800xA APC Platform and in the existing 800xA System (DCS), which offers integrated control of pulping, paper making and drives. The OPT800 Caust system is designed to help mill personnel improve process efficiency, product quality and to reduce the environmental impact.

  • State-of-the-art multivariable model predictive control 
  • Production change control
  • Causticizing efficiency control
  • KPI Dashboard and control usage reports
  • Day/Shift reports
  • Task oriented and user friendly customizable operator displays

  • Increased causticizing efficiency (0.5 – 1.5% -units)
  • Decreased causticizing variation (20 – 60%)
  • Improved white liquor quality and strength
  • Increased capacity (3-7%)
  • Decreased lime consumption
  • Optimized lime mud separation and washing
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