FITNIR Analyzers provide white and black liquor compositions for digester operations. For black liquor, REA is measured as well as organic and inorganic content, which is not offered by any other techniques. Complete liquor compositions can be measured using FITNIR’s technology.

Optimization of Digester Operations
The primary advantage of applying FITNIR Analyzers to digester processes is to reliably and accurately provide WL EA and sulphidity as well as BL REA at the various zones. Control strategies based on reliable data can significantly reduce kappa variation, overcooking and rejects while increasing pulp quality.

Reducing kappa variability could also have a significant reduction in bleaching costs. As a result, improvement in yield is possible with FITNIR Analyzers.

Pulp Liquor Properties Measured by FITNIR Analyzers
> White Liquor: TTA, EA, AA, CE, Carbonate, Sulphide, Sulphate, Thiosulphate
> Black Liquor: REA, Organic Solids (FITNIR Online), Inorganic Solids (FITNIR Online), Lignin

Benefits of FITNIR Digester Application
> Improved digester control
> Reduced bleaching cost
> Reduced off-grade pulp
> Reduced white liquor consumption
> Reduced lab tests

Contact FITNIR Analyzers Inc. and we can work together to optimize your digester operations.