DEKOMPOSISI TONGKOL JAGUNG SECARA TERMOKIMIA DALAM AIR PANAS BERTEKANAN

Bregas S T Sembodo, Beinard Prasatya Siagian, Cecet Panduwinata

Abstract

Corncob can be one of the potential alternative energy resources by thermo-chemical liquefaction in the hot compressed water. This research was intended to find a heating time which produce a maximum yield of oil, and the contained substances in the oil. A 100 ml cylindrical autoclave used in the experiment was loaded with 5 g dry powdered corncob, 2 g catalyst (sodium carbonate) and 65 ml water. After having blown with Nitrogen, the autoclave was heated in the tube furnace until reaching 280 oC, and then kept at this temperature for 40, 60, 75, 90, 105 and 120 min. The product was filtered and the filtrate was distillated to obtain oil. The results showed that at 280 oC and 6.42 MPa the maximum yield of oil was obtained after heating for 75 min. The oil mostly contained 2,6-Dimethoxyphenol by 20.2 % weight and Phenol by 12.88 % weight.

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DOI: https://doi.org/10.20961/ekuilibrium.v8i2.49500

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