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
Commercial

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
Costs

Continuous Digester Control SystemSchematic

Continuous Digester Control System Publications

Energy Efficiency Improvement and Cost Saving Opportunities for the Pulp and Paper Industry

This Energy Guide discusses energy efficiency practices and energy-efficient technologies that can be implemented at the component, process, facility, and organizational levels.

Page Number: 

91

Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Pulp and Paper Manufacturing Industry

Page Number: 

33

Continuous Digester Control System Resources

Continuous Digester Analyzer