Abstract:In the pulp and paper industry, the
evaporation of black liquor
is an important step to recover heat and chemicals. Due to a substantial
amount of sodium carbonate and sodium sulfate in the black liquor,
evaporators typically have to address the scaling of these water-soluble
salts at concentrations above approximately 50% dry solids content.
To maintain their operation, the evaporators are cleaned regularly
using condensate or weak black liquor. In this paper, a model for
evaporator cleaning was developed bas… Show more
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