Distilling process not only remove the fetid impurity, increase oil smoke point,make better taste, but also improve oil stability, quality and chroma.At the same time,we can get rid of free fatty acid, peroxide, heatsensitive coloring matter, protein in the mucid oil cake,
polycyclic aromatic hydrocarbon ,and residual pesticide residue.
The standard bleached oil enters into Heater, Heat Exchanger, and Heater, and the oil is heated to process temperature (240-260 degrees). Subsequently pump the oil to Deodorizer.
The deodorizer is combined type: the upper is packed type to remove odor producing
components such as free fatty acid; the bottom is plate type to get hot bleaching effect. Oil from the Deodorizer enters into the condenser to recover most of the heat and makes further heat exchange. Finally the oil is cooled to 80 85degrees by Cooler . Volatile from the deodorizing system is separated by FFA Scrubber. The separated liquid is FFA at 40-50 degrees.
The Distilling Tower
Combines the packed tower and dish tower together, has the dual advantages of dish tower and packed tower.
It absorbs packed towers saving steam, higher effect of Deacidifying ability and higher thermal bleaching effect, and avoid the shortcomings of their own.
Its Working Process:
The high temperature oil first enters the packing section, which contact to the steam stripping of the bottom-up in the surface of the filler material with the film-shaped countercurrent, to remove out the free fatty acids in the oil, and residual solvent, and various other lowvolatile components. With the larger specific surface area due to the structure of the filler, and the mass transfer in the film state, deodorization effect is very good,quicker and fully.
Then the hot oil (the FFA and other volatile components removed out) enter into the stranded segment (dish type structure) from the packed section, and with the Montmartre pump forcing circulation effective to avoid short circuit.
The same time due to the removal of FFA and other volatile components, the thermal bleaching effect than the conventional dish tower is more obvious, the more stable product quality.