The battle against scaling in pulp mill evaporators is constant when processing black liquor for the recovery boiler. Scaling creates two major and costly problems:

1. Scaling increases steam consumption 
2. Scaling requires periodic maintenance shutdowns to "boil-out" the scale buildup.

Black liquor begins to form scale on the surface of conventional evaporation equipment from startup and eventually reaches a point at which the heat transfer stops completely.

The ShockWave Power™ Reactor (SP) can be used in a variety of configurations to achieve significant improvements in the concentration of black liquor. It can be used as a scale-free preheater that reduces scaling in conventional evaporators, or the SPR can replace conventional evaporators to achieve scale-free concentration at a higher viscosity reduction. The SP Reactor can increase production between 6% and 15% depending on the application. This increase is obtained at a fraction of the capital costs associated with conventional equipment.

The SPR can be used for:

• Black Liquor Preheating
• Black Liquor Oxidation
• Black Liquor Oxdation for Scale Deactivation
• Black Liquor Oxidation for Heat Value Reduction
• Black Liquor Concentration
• TRS Reduction