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Palm Kernel Oil Refining Plant Manufacture
The process steps for producing refined palm kernel oil is as follows:
In Palm Kernel Oil Fractionation is generally done to produce Palm Kernel Oleine & Palm Kernel Stearin which is also called Cocoa Butter Substitute (CBS) .
Palm Kernel Oil Refining Process:
Gum Conditioning / Bleaching
PKO oil from storage tanks is directly pumped to the Retention Tank through inline mixer/High Shear Mixer, where calculated amount of phosphoric acid is added continuously by dosing system, oil before reaching to the Retention Tank passing through the Plate Heat Exchangers in PHE oil is getting heated through the outgoing hot bleached oil, this oil is further heated through the steam in PHE.
This process is called Continuous Gum Conditioning, after saturating Non-Hydratable gums, this oil is carried to the Oil Earth Mixer, after adding calculated amount of Citric Acid continuously by dosing system. Pre-calculated amount of bleaching earth is added in the Oil Earth Mixer this slurry is pumped
to the bleacher. After proper holding & mixing this oil is sent to the alternative operating set of PRESSURE LEAF FILTERS after this filtration oil is again filter by alternative operating set of polishing filters.
Benefits of Spectec’s Gum Conditioning / 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.
Continuous Deodorization
In Deodorizer, fatty acid is distilled from oil, under high temperature condition and in presence of high vacuum, with the help of sparging & agitation steam. Further this fatty acid in vapour form is condensed & recovered in liquid form by the vapour scrubbing system.
Deodorizer is multi-compartment vertical vessel, where each tray is specially designed which Ensures uniform distillation of odoriferous
substances. Oil is overflows from tray to tray. Specially designed 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, and strip off the volatile matter and rises through the vacuum, stripping the volatile matter from the oil. The counter-current 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.
Benefits of Spectec’s Deodorization Section:
- Vacuum balance tray design ensures zero vapors logging i.e. effective distillation.
- Online fatty spraying also helps for zero vapor logging which ensures maximum vapor 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 exchanging trays ensures maximum heat recovery and addition deodorizing time.
- Counter current flow (oil/steam) design increase the trayefficiency for better deodorization & distillation.
- Vacuum sealing arrangement for power failure.
- Simple & low maintenance automations.
Vapors Scrubbing
The volatile matters consisting of free fatty acid and other odoriferous substances stripped from the deodorizer are led to the vapor 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.
Continuous Dry Fractionation Section
Fractionation is the fully reversible modification process. It is basically a thermo-chemical separation process in which a multi-components mixture is physically separated in to two or more fractions with distinct physical & chemical properties. The can be based on a difference in solidification, solubility, or volatility of different compounds.
SPECTEC’s Dry Fractionation plant is a custom design to allow you to achieve selective crystallization of different triglycerides in edible oil. This is plant you can count on producing stable & filterable crystals giving you a product to fit your standards and quality requirements. It is very effective in producing Coca Butter Substitute (CBS)
