Optimasi Ekstraksi Spent Bleaching Earth (Sbe) dengan Pelarut N-Heksana Menggunakan Reaktor Ekstraksi.

Abstract

Optimization of extraction of spent bleaching earth (SBE) with n-hexane using extraction reactors have been done in the Palm Oil Research Center (PPKS) Medan. This study aims to obtain the best extraction condition in the extraction process to obtain oil from the SBE and also to analyze the quality of the oil from SBE. In the extraction process performed by heating at the temperature of 55 ° C using n-hexane solvents and with stirring with a speed of 12 rpm for 1 until 10 hours using a reactor on a 30 kg scale of sample. Measuring the quality of the oil is carried out through five parameters are the analysis of water content, the determination of iodine value, the analysis of free fatty acid content, analysis of impurities content and color test on oil, the results of this analysis were then compared with the quality requirements of CPO specified in ISO - 01-2901 - 2006. Based on the yield percentof oil extraction from SBE extraction using the reactor showed that the best conditions are used for the extraction of SBE is for 10 hours, which from 1 until 10 hours the percent of the yield whichobtained is increase, so that at the time of extraction for 10 hours produce the highest percent yield is 2.3101%. From the analysis of oil quality measurement performed acquired the water content is 8,30%, impurity content is 0,675%, iodine value is 44,981 g / 100 g and a free fatty acid content is 16,465 % with oil color’s is orange brown. The analysis showed that the oil from SBE does not meet the CPO quality requirements specified in SNI - 01-2901 - 2006 as a raw material in the manufacture of cooking oil so that the oil obtained from the extraction of SBE can not be recycled into cooking oil.