Evaluation of Defoamer Chemistries for Brown Stock Washing, 2015 PEERS Conference
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An effective brown stock washing process is a crucial part of the pulp mill operation due to its impact on downstream processes such as bleaching, black liquor evaporation, and caustic recovery. An optimized brown stock washing process is desired to remove the maximum amount of black liquor solids from the pulp while minimizing wash water usage. Due to the presence of soap and lignin in black liquor, a significant amount of foam is generated inhibiting the washing process. A foam control agent is necessary to combat this foam, and also increase production rates, as well as optimize and continue operations.
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Evaluation of Defoamer Chemistries for Brown Stock Washing, 2015 PEERS Conference