How to Measure and Control Causticizing Efficiencies in Pulp Manufacturing

Author: David Zerr, VP of R&D, Pulmac Systems

Event: Peers 2022

This presentation will focus on understanding and deploying  NIR technology to effectively read and measure chemicals in the liquor slurry. Each of these chemicals has a unique signature that lights up like a beacon when irradiated with NIR.

Absorption of near-infrared light, like that of mid-infrared light, is based on the vibration of the material. Near-infrared light absorption is weaker in intensity than mid-infrared light absorption since near-infrared light absorption is based on overtones and combined tones in the mid-infrared light region but provides an effective means to ID compounds.