Specifications

ContinuousType Edible Oil Refinery Plant
Neutralizing/Degumming
Bleaching Section
Deodorizing Section
De waxing Section

CONTINUOUS VEGETABLE OIL REFINERY PLANT
Basic process of refining is same in both batch & continuous refinery. Only
difference is instead of a measured batch, crude oil is processed continuously
with
constant stream of flow. In between required utilities & chemicals are added
continuously in measured quantity. Crude oil from obtained from expellers,
solvent
extraction plant contains foreign impurities such as mucilage, gums and
unfiltered
proteinous matter from the seed. It also contains gums which making it
unfit for
edible
purpose. Basic stages of the process are as below:

Nutralizing
Bleaching
Dewaxing & Deodorizing.
DEGUMMING AND NEUTRALIZATION SECTION:-
The crude oil is pumped to Neutraliser from oil mill or storage tank & first it
is
treated with weak solution of phosphoric acid or other suitable degumming
agent
for removing gums.
Thereafter oil is further treated with measured quantity of alkali (NaoH)
depending
upon free fatty acid (F.F.A.) in crude oil. In this process soap will be
separated.
Next process is hot water wash to the oil to remove traces of soap particle &
free alkali.
The oil obtained will be light in colour, free from soap stock & called as
washed
Neutralised Oil.



BLEACHING SECTION:-
In this process excess colour from the oil is removed. The neutralized
washed oil is
pumped into the Bleacher vessel operating under vacuum.
The oil is first heated to remove excess moisture and thereafter it will be
treated
with predetermined quantity of bleaching earth & activated carbon.
Thereafter the oil will pass through a filter media (Pressure leaf / Filter
press) to
separate spent bleach earth and bleached oil.
The oil will pass obtained after bleaching process is light in colour &
appearance of
oil will be clear golden in colour