PEMEKATAN ETANOL DENGAN METODE STRIPPING MENGGUNAKAN GAS NITROGEN DAN UDARA

Abstract

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