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INTERDISCIPLINARY JOURNAL OF CONTEMPORARY RESEARCH IN BUSINESS
which reduces the oil yield. Time is a factor of influence, although for small-scale
operations over 95% of the attainable yield is obtained in the first ten minutes.
8.4 OIL CLARIFICATION
The expelled oil invariably contain some quantity of fines and foots that need to be
removed. The oil from the presses is drained to the reservoir. It is either pumped to a
decanter or to revolving coarse screen to remove large part of the solid impurities. The oil is
then pumped to a filter press to remove the remaining solids and fines in order to produce
prior to storage. The cakes discharged from the are conveyed for bagging, bulk storage or
sent to the boiler as a source of fuel(FAO Co-operate Document). The flow diagram of
mechanical is shown in fig 2 below:
Figure 3 Mechanical extraction process diagram.
Source; Secondary Data of the study
9. SOLVENT EXTRACTION
Solvent extraction is a mass transfer process in which materials are transported from one
phase to another for the purpose of separating one or more compounds from their
mixtures(P.J Wan and P.J Wakelyn). In the case of palm oil extraction, crude palm kernel
COPY RIGHT © 2011 Institute of Interdisciplinary Business Research 67
JANUARY 2011
VOL 2, NO 9