Design of Eucalyptus Oil Refining Destilator (Melaleuca Cajuputi)

The aim of this research is to design a distillation of eucalyptus oil and analyze the distillation rate on the yield of oil quality. This study uses an experimental method that directly makes a distillation apparatus, conducts experiments and observations to collect the necessary data, and then analyzes it with the Indonesian national quality standard, SNI 06-3954-2006. The design of the eucalyptus oil distillation apparatus is made in two major parts, namely the kettle as a distillation site and the condenser as a place for evaporation of steam into the water to obtain distillate which will then be separated to produce eucalyptus oil. The results showed that the highest average temperature measured on the surface of the boiler was 158°C, and the highest average temperature on the stove surface was 138°C. The average amount of water that is evaporated in the boiler is 19.0 liters in one distillation process. Distillation was carried out for 6 hours. Thus, the average water that can be evaporated in the boiler every hour is 4.0 liters/m². The amount of vaporized water is 4 liters of the total water in the kettle, as much as 19 liters; only 21.053% of the water is evaporated. The analysis results of these two samples show the quality of eucalyptus oil produced from the study. Namely, the color of the oil is clear/transparent, the odor produced is typical of eucalyptus oil, the specific gravity of the two samples is 0.9128 gr/ml, the refractive index is 0.4, and the oil yield is obtained. 1.2%. The temperature obtained is relatively tiny, namely, 203.8092 MJ, while the total energy needed to evaporate water is 11.2356127 MJ. It means that only 18.5% of energy can be generated in the distillation process in the boiler. The energy requirement of kerosene is 203,8092 MJ of the total need for kerosene used in the refining process of 5 liters. Still, it can be seen that the energy used to produce steam is only 11,2356127 MJ of the total available energy of 203,8092 MJ. A lot of energy is wasted because of the heat protection from the distillation apparatus, resulting in a resulting thermal efficiency of only 5.5%.