PULP & PAPER Bleaching

Business Problem

Bleaching chemicals often represent the second largest cost in chemical pulping with a known operational issue of over usage to ensure final stage pulp brightness within quality specification.

Challenge

Variation in stockflow, kappa and consistency; as well as time spent at each bleaching stage, provide challenging conditions for controlling chemical charge.

SentianController solution

SentianController optimizes chemical usage while maintaining pulp strength by utilizing inferred models for continuous prediction of brightness level, kappa, chemical consumption and delay-time; for each bleaching stage.