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Talk:Ethanol from organic sugar beets versus refined cane sugar
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So how did you dehydrate the 80%alc to make 100% ethanol ? I had heard that the last 5% was particularly difficult. Ericblazek 06:18, 17 May 2007 (PDT)
I used a molecular sive called Zeolite 3A. Zeolite is like small pebbles that absorb water molecules, the alcohol molecule however is too big to be absorbed. So I soaked the 80% ethanol liquid for 24 hours in zeolite, then collected the the remaining 100% alcohol. Zeolite can absorb 22% of its weight of water. So 1 lb of zeolite can absorb .22 lb of water.
-Amal
