Scale Control Program Doubles Run Time Between Digester Acid Cleanings

GoalIncrease time between digester acid cleanings and save costs.

<h6>Customer Challenge</h6> <p>A Southern U.S. pulp mill wanted to extend the time between its digester acid cleanings from once a year to once every two years.&nbsp; To accomplish this goal, the mill required a more robust scale inhibitor program to control scale buildup.</p> <h6>Recommended Solution</h6> <p>Solenis recommended that the baseline feed rate of the existing scale inhibitor (Infinity&trade; SL4342) be increased from 0.45 lb/ton to 0.60 lb/ton and that SmartScale Technology be employed to proactively adjust feed rates based on various digester KPI inputs.</p> <h6>Results Achieved</h6> <p>The SmartScale Technology was used to finetune the feed rate of the Infinity SL4342 scale inhibitor at various dosage points.&nbsp; The program enabled the mill to increase the time between cleanings to two years, saving the mill an estimated $440,000 a year. Additionally, the mill gained three days of production per year and reduced potential safety hazards associated with the acid cleanings.</p> <p><img style="max-width: 100%; width: auto; height: auto;" src="/link/a309596b668c4f169bd0312e31034a2a.aspx" alt="" width="1774" height="1135" /></p>