Valmet Continuous Cooking Optimizer

Effective pulp cooking process optimization is built on well-managed instrumentation and basic automation. The purpose of the Continuous Cooking Process optimization is to produce the maximum amount of optimum quality pulp, stabilize cooking conditions, eliminate disturbances and provide operators with tools to execute production rate and pulp grade changes automatically.

Features

Stabilizing Control Functions
Production rate and chip flow
Alkali dosage and alkali profile
Digester liquor balance
H-Factor and temperature profile

Pulp Quality Control

Kappa estimation
Kappa feedback control (blow line/MidPoint)

Management of Changes

Production
Pulp grade
Wood species

Disturbance Management

Chip column disturbance detection (Fuzzy)
Short time process stoppage

Benefits

Even quality
Increased production
Decreased wood consumption
Reduced white liquor consumption
Reduced steam consumption
Minimized disturbances
Help in operator work
Pro environmental

Customer success cases

GPI’s West Monroe mill benefits from digester optimization

Valmet and Graphic Packaging International (GPI) collaborated on continuous digester optimization projects that included three digesters in West Monroe, Louisiana.