Cleaner Efficiency Determination via Sequential Extraction in OCC Pulp, 2018 PEERS

To compare the removal efficiency of cleaner cones sup-plied by two different vendors, sequential extraction of cleaned OCC (Old Corrugated Container) pulps was utilized. The low consistency solutions of OCC pulp were sampled, and two drying methods were evaluated. The composition of extractives was evaluated by FTIR. A trial skid was made so the cleaner cones from the two vendors could be installed for comparison under the same process conditions: stock consistency, inlet pressure, etc. Cleaner A demonstrated 17.4% removal efficiency, and Cleaner B demonstrated 0.038% removal efficiency.  An Optical Stickies Monitor (OSM) was used to estimate cleaner efficiency, and Cleaner A and B then showed 35% and 9% removal efficiency, respectively.  Both techniques indicated Cleaner A performs better in lowering the contaminant amount/size.  

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