VEGEATABLE OIL REFINING PLANT
Refining of vegetable oils is essential to ensure removal of gums, waxes,
phosphatides and free fatty acid (F. F.A.) from the oil; to impart uniform
colour by removal of colouring pigments and to get rid of unpleasant smell
from the oil by removal of odiferous matter.
Refining is carried out either on batch operation or as continuous
operation. With certain oils even physical refining can be carried out
instead of chemical.
For processing less than thirty tones of oil per 24 hours, and when oil has
F.F .A. content of 1 % or less normally batch process is recommended. Batch
process involves low capital investment, simplicity of operation and low
maintenance, making refining economically a viable proposition even at
capacity as low as 10 tonnes per 24 hours.
The equipment involved are Neutralizer, Bleacher, Deodorizer, Heat
Exchanger, High & low vacuum equipment & Filters. Troika plant with
batch process have been operating at number of places, processing varity of
If you are looking out for a refining line batch or continuous, physical or
chemical for conventional or nor conventional vegetable oil -Get in touch
with Troika -The Technocrats to Oils & Fats Industry, In the service
Continuous Refining Line
Refining of vegetable oils is essential to ensure removal of Gums, Waxes,
Phosphatides and Free Fatty Acids (F.F.A.) from the oils.
For capacities higher than 30T/24hours Continuous Refining Process is
recommended against Batch Refining.
Continuous Refining will comprise of following steps:-
Pretreatment / Degumming Section:-
Here the oils are given acidic treatment where by gums are precipitated and
separated out by centrifugal separation or some times only gum conditioning
is carried out (when gum content is low) and gums are separated in
subsequent neutralising process.
The pretreated oil is subjected to Alkali Refining. The caustic soda reacts
with Free Fatty Acids (F.F.A.) present in the oil and forms soap stock, the
soap stock is separated out by centrifugal separator, oil is washed with
water for complete removal of soap stock. The wash water is separated out by
The neutralized oil is treated with bleaching earth/activated carbon for
removal of colouring pigments. The bleaching agent is filtered out in
vertical pressure leaf filters. Troika design ensures uniform consistency in
colour with minimum requirement of bleaching agent. The bleaching line is
versatile and adoptable for all varieties of vegetable oils.
As the name suggest process is meant for removal of odour. Every vegetable
oil has its own distinct natural odour. During neutralization and bleaching
operation unpleasant odour is imparted to the oil, it is therefore essential
to remove this odour. The deodorisation is essentially a process of removal
of odiferous matter. The operation is carried out at high temperature by
injecting open steam and maintaining high vacuum at which time all
odoriferous matter is distilled off and carried away to barometric
condensors through vacuum system. The resultant oil is odourless
Dewaxing Section :-
Oils like sunflower oil or maize germ oil (corn oil) have waxes present in
them. At low temperature these waxes gives hazy appearance to oil, which is
not liked by consumers. It is therefore essential to remove these waxes
prior to bottling and marketing of oil. Troika offers dewaxing units.
For oils like palm oil there is no necessity to go for alkali refining.
After pretreatment of oil the oil is deodorized cum physically refined. The
Free Fatty Acid (F.F.A.) present in the oil is distilled off at high
temperature and high vacuum. Troika offers physical refining system also.
Thus for any of your refining requirement of vegetable oils, whether batch
or continuous Alkali Refining or Physical Refining Troika is at your service
for more information please contact.