Valmet Bleaching Optimizer

Features

Base calculations and controls to stabilize the process:

Chemical dosage controls (if not in base automation)
Washing water flow controls
Production rate control
Retention time calculations

Model based quality control (all bleaching stages):

Kappa and/or brightness control
pH controls
Temperature controls

Management of changes:

Production rate, pulp grade, and wood species

Management of disturbances:

Process event tracking
Retention time estimator
D2C (Smart continuous measurement)

Benefits

Final pulp brightness at the desired level with reduced variability
Minimized loss in pulp strength
Bleaching chemical savings
Increased production
Smooth process operation
Fewer production disturbances
Elimination of human errors
Lower effluent load (COD, AOX)
Help in operator work

Customer success stories

Fast results at Nippon Paper Akita's bleaching process

Nippon Paper Group is one of the leading producers of paper and cardboard in the world and it's Akita mill the leading Japanese producer of paper, cardboard and pulp. Valmet implemented a new Valmet Kappa Q analyzer and the Valmet Bleaching Optimizer solution to reduce quality variability and to reduce bleaching chemical consumption.

Burgo Ardennes stabilizes bleaching process

Optimization smooths out bleach plant operation and demonstrates an 8.7% saving in bleaching chemicals with improved brightness stability in the Burgo Ardennes mill in Belgium.