Kraft Pulping Analysis Solutions: Tighten Control In Every Facet Of Manufacturing

There are many processing steps used to turn wood into paper products. Liquid analytical measurements provide substantial control solutions that can reduce costs with a typical payback time of less than one year.

Chemical Pulping
Strong liquors are used to delignify the wood chips and the spent liquors are constantly collected and regenerated. Conductivity measurement is used to monitor the strength of these liquors and control the pulping process.

Measuring white liquor alkali concentration allows optimization of cooking time and product pulp properties. With a toroidal conductivity sensor, measuring the alkali concentration entering the digester allows fine control of the liquor flow rate to match the wood loading, improving throughput and minimizing variability.

The pulp slurry undergoes bleaching, blending, and refining prior to being run in the paper machine. pH control during these stages is essential for consistent quality. pH is measured in the wet end of the headbox and in bleach lines with the TUpH™ line of pH sensors.