Bleaching

Business Problem

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

Challenge

Variations in stockflow, kappa and consistency, as well as the time spent at each bleaching stage, provide challenging conditions for optimizing the use of chemicals.

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 at each bleaching stage.