Continuous Digester Control System

Control systems continuously monitor key parameters (such as residual effective alkali, total dissolved organics, and total dissolved solids for black liquor; effective alkali, sodium sulfide, sodium carbonate for white liquor) (Connmar, 2012) to optimize the digester operation. These help reduce production losses, operating costs and environmental impacts. They also increases paper quality and quantity (Kramer et al., 2009. p.91).

Development Status Products

Continuous Digester Control SystemCosts & Benefits

Parent Process: Chemical Pulping
Energy Savings Potential

US flag Initial implementation of one computer model resulted in 1% energy savings for the pulping process.

CO2 Emission Reduction Potential

Continuous Digester Control SystemSchematic

Continuous Digester Control System Publications

Page Number: 


Continuous Digester Control System Resources