Advantages & Applications of Wiped Film Evaporators
Wiped film evaporator is mainly designed
to maintain challenging evaporation needs with materials like heat-sensitive,
low thermal conductivity. Basically, this technique involves the separation of volatile
compounds by introducing a mechanically stimulated thin film of the feed
material on the heated surface. Wiped film evaporator is also called a
thin-film evaporator
In Wiped Film Evaporator, the rotating
wiper system distributes the raw product to the film on the middle surface of
the hot water pipe. The wiping system tries to speed up the evaporation process
by keeping the product film turbulent which will optimize the heat transfer and
mass transfer.
The lower boiling point of the raw
material evaporates from the product film in a short time; The housing of the
product on the evaporator wall is very small. Vapors condense on an external
condenser.
The condenser is located on the outside of
the evaporator and is connected to the evaporator through a pipe. So the
velocity of the vapors at high evaporation rates and low pressures will become
very high. Due to the pressure drop created by the vapor moving towards the
external condenser, the achieved vacuum in a Wiped
Film Evaporator is limited to about 1 mbar.
Advantages of Wiped Film
Evaporator
·
Consistent
refining process
·
Low
operating pressures
·
Large
evaporation rates
·
Low
residence time
·
It
is possible to combine columns to increase the number of theoretical plates
·
Low
fouling on evaporator wall
Major Applications of
Wiped Film Evaporator
·
Oil
Deodorization
o Fractionation of
tall oil
o Concentration of
monoglyceride
o Pesticide removal
from lanolin
o Colour improvement
of lanolin
·
Pharmaceutical
o Distillation of pharmaceutical
intermediates
o
Distillation
of pharmaceutically active substances
- Polymer Devolatilization
- Purification and concentration of monomers
- Purification and concentration of polymers
- Purification of plasticizers
- Flavor Purification
o Elimination
of terpenes and concentration of essential oils
o Separation
of solvents of the odorous substance
o Concentration
of lemon flavors
- Solvent Recovery
- Molecular Distillations Of Esters, Fatty Acids,
Mono, Di, & Triglycerides
- Residue Removal / Decolorization
- Vitamin, Nutraceutical, Essential Oil Isolation
- Wax Fractionation
- PCB, Insecticide Removal
- Water Removal – ppm Level.
- Biomaterial Concentration
Choose
Best Wiped Film Evaporator Manufacturer & Supplier for better production
Professional Wiped
Film Evaporator Supplier & Manufacturer has the experience to provide services to many of the industrial
sectors like the food industry, Pharmaceuticals, Cosmetic Industry, Chemical
Industry, wastewater industry and many more. Wiped Film Evaporator Suppliers offer wiped film evaporator (WFE)
system for use in concentration, –distillation, dehydration & deodorization
of heat-sensitive components.
Some of the advantages
offered by manufacturers:
- High heat transfer rates
- Short retention time avoids product degradation
- Can handle viscous products
- Suitable for vacuum operation
- Energy-efficient operation
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