For processing low solids liquors or effluents prior to the main evaporator
Process low-solids liquor or effluent prior to mill main evaporation system with minimum energy consumption while maximizing plant availability and condensate quality.
RecoVap pre-evaporators use proven lamella-type heating surface. With its inherently non-foaming design, this is ideal for the low-solids applications where foaming risk is greatest. Use of lamella-type heating surfaces allows the use of multiple various heat sources, even inside the same unit, and enables the selection of the most energy efficient process connection.
Inherently non-foaming design
One major benefit of the design is less foaming, due to low vapour velocities inside the evaporator, low shear rates, and the free flow falling film construction.
Uniform liquor distribution on the heating elements and continuous redistribution of the liquor by the dimpled shape of the surface ensure a completely wetted heating surface and eliminate the potential for scaling or over-concentration of liquor.
High efficiency condensate segregation in the evaporator ducts and lamellas, plus integrated stripping of foul condensate fractions, produce clean and re-usable water. Separated methanol is recovered in a methanol liquefaction system.
- Inherently non-plugging design
- Maximized energy efficiency and utilization of existing secondary heat sources
- Lowest steam and electricity consumption