PEMEKATAN ETANOL DENGAN METODE STRIPPING MENGGUNAKAN GAS NITROGEN DAN UDARA

Enny Kriswiyanti

Abstract


Abstract: Nowadays, the use of ethanol as an alternative fuel in Indonesia is less attractive than
fossil fuel because its price is relatively high due to the high cost of purification process. While
the fuel grade ethanol must have a very high purity. That’s why another low costed way to purify
ethanol is needed, in this research we used stripping method. The focus of this research are the
optimum conditions such as the type of stripping gas, stripping gas flow rate, and the type of
packing material. The research was conducted with a packed stripper. The variables used in this
research is the type of stripping gas (nitrogen and air), stripping gas flow rate (air : 67,5 ml/s; 90
ml/s; 112,5 ml/s and nitrogen: 61,16 ml/s; 70,02 ml/s; 92,87ml/s), the type of packing materials
(ball packing with average diameter of 1,5 cm and a 5/12 inch diameter raschig ring; average
length of 1,5 cm), while the ethanol flow rate of 29,14 ml/s and 48 cm packing height are not
changed during the process. The optimum result shown in the nitrogen gas flow rate of 77,02
ml/s with packing materials raschig ring, for 85,31%.
Keywords: ethanol, stripping, nitrogen, packed stripper


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DOI: http://dx.doi.org/10.20961/ekuilibrium.v13i2.2164

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