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Mustard/Canola/Rapeseed Oil Refinery Plant Process
Mustard Oil Refining consists of the following sections:
Mustard Oil Refinery Process:-
Water Degumming / Neutralization
The crude oil from bulk storage tank, is directly pumped to the oil/oil heat exchanger where incoming crude oil is getting heated by the outgoing refined oil, is the start-up heat exchanger, which is used in plant staring only) further this oil is going to buffering tank which insures the constant flow of incoming and outgoing oil, it is also equipped with mechanical agitator and steam heating coils. Where oil heated up to the required temperature as process demands. And mixed properly for Homogenation. Further this oil is heated with heat exchanger and pumped to the hydration tank, where calculated amounted of hot water is being added continuously, to maturate the gums. In continuous process this gums are separated in the centrifugal separator. This water de-gummed oil is further carried to a holding tank through heat exchanger after mixing a phosphoric acid in it, here oil Refinery is hold for a calculated time, This neutralized oil is further heated by a steam in heat exchanger, then mixed properly with hot water with the help of knife mixer and getting water washed by a centrifugal separator. Finally, this water washed oil is dried under vacuum in a vacuum drier.
Continuous Bleaching
Bleaching is the process of removing pigments, dirt, phospholipids and aromatic compounds from the oil. Degummed mustard oil from intermediate storage tanks is pumped to the slurry mixing Tank through the Plate Heat Exchangers where it will be heated through the outgoing hot bleached oil, this oil is further heated through the steam in PHE. Pre-calculated amount of bleaching earth is added in the Oil Earth Mixer by dosing system, this slurry is pumped to the bleacher. After proper holding & mixing in continuous bleacher this oil is sent to the alternative operating set of PRESSURE LEAF FILTERs after this filtration oil is again filtered by alternative operating set of polishing filters.
Benefits of Bleaching Section:
- Oil Earth Mixer is specially designed with higher mixing speed which ensures quick & effective mixing.
- Continuous Bleacher is a combination of Dry & Wet bleaching which makes it multipurpose.
- Simple & low maintenance automations.
Deodorization
Deodorization is a steam distillation process for removing odour, fatty acids & and components which are not optically visible, but can be identified under microscope.
Deodorizer is multi-compartment vertical vessel, where each and every tray are specially designed which Ensures uniform distillation of odoriferous substances. Oils overflow from specially designed trays to trays, provide sufficient mass transfer surface for effective removal of volatile matters. Flow control system at the outlet of the deodorizer, ensures the maintenance of required level at the bottom tray. The steam used for stripping off volatile matters in the oil is distributed evenly and intensively. The steam meets the deodorized oil. Stripped off the volatile matter and rises through the vacuum. Stripping the volatile matter from the oil. The countercurrent flow of steam and oil like this in specially designed trays lower steam consumption, than the conventional deodorizers. The deodorized oil leaving regenerative heat exchanger and finally cooled by water in heat exchanger finally this oil is passed through the alternatively operating set of polishing filters. VAPORS SCRUBBING The volatile matters consisting of free fatty acid and other odoriferous substances stripped from the deodorizer are led to the vapour scrubber located at the outside of the deodorizing column. In the scrubber, volatile material rises through the bed of pall rings and meets liquid fatty acid sprayed from the top. Vapours are condensed, cooled, and then recalculated to condensed fresh vapours. Excess distillate collected is led to the storage tank, whenever high level reached in storage space below the scrubber. Fatty acid scrubber is specially designed for minimum carryover of fatty materials, to the vacuum system .
Benefits of Deodorizing Section:
- Vacuum balance tray design ensures zero vapor logging i.e. effective distillation.
- Online fatty spraying also helps for zero vapor logging which ensures maximum vapour to carry to the scrubber without distilling in trays.
- Special de-aeration tray increases the heat exchanging efficiency, because of zero dissolved air.
- Efficient re-generative heat exch trays ensures maximum heat recovery and addition deodorizing time.
- Counter current flow (oil/steam) design increases the tray efficiency for better deodorization & distillation.
- Vacuum sealing arrangement for power failure.
- Simple & low maintenance automations.
