After palm oil extraction, the palm kernel nuts and fiber are recovered from the mash. The mixture of nut and fiber is dried first and then separated from each other in depericarper (nut & fibre separator). As fibers is light in weight, they are carried away by air flow, while nuts are fall into a rotary drum. The separated fibers are used in the boiler as fuel. The nuts are sent to nut silo. By use of cracking machinery, the palm kernel will be recovered from the nuts. The nut shells are collected and feed into boiler with fiber. The kernels are further processed in palm kernel oil extraction plant to produce palm kernel oil (PKO) and palm kernel cake (PKC).
The rate of FFA increase is much faster in broken kernels to keep the kernel breakage as low as possible during the nut crushing processes.
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