BATCH DIGESTER HOUSE STEAM LEVELING AND IMPROVED PULP QUALITY USING ADVANCED PROCESS CONTROL, 19PaperCon
Batch cooking poses several operational challenges. The ability to produce consistent quality cooks at uniform production rates while ensuring optimal usage of steam depends on how well cooks hold to schedule. Thus, digester house scheduling, production rate control and steam management play a crucial role in ensuring steady operation and uniform production. The paper discusses challenges in batch digester operation while presenting a methodology that unifies pulp quality control and optimal steam leveling. This advanced control methodology ensures tight kappa control while smoothing digester house steam flow. The implementation architecture for the proposed methodology is also presented.
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