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» Pulp and Paper » Equipment & Processes » Chemical Recovery » Evaporation » LHT

Liquor Heat Treatment

Liquor Heat Treatment, LHT

LHT system uses a unique Heat Treatment process to decrease the viscosity of concentrated black liquor. This makes possible to increase firing liquor concentration.

Advantages of high dry solids in recovery boiler

  • Improved operation of the recovery boiler
  • Higher reduction rate in smelt
  • Smaller plugging tendency of the recovery boiler
  • Lower SO2 emissions in flue gas
  • Improved energy economy of the mill
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