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  • Ethyl alcohol from sugar Yield

    Posted by luiscuevasii on February 28, 2021 at 8:07 pm

    Greetings.

    I’m trying to make alcohol from sugar cane molasses and/or white sugar as raw materials, the process is pretty simple and it’s profitable in my country, the ethyl alcohol ~90% cost arround 2.6$/kg,  sugar molasses 0.5$/kg and white purified sugar 0.75$/kg.

    I made the stoichiometry and have teorical yield, but I have no practical vyield, I want to know if someone has any expertise and could bring me a hand with that to help me select from white sugar or molasses, I have not a small distiller so it’s a big risky and costly to try both on a big distiller.

    I think that is easier and still profitable to use purified sugar that I think that doesn’t need pre-trreatment as acidulation and sedimentation prior to yeast fermentation, but I can’t find sources with yields from both process to make the choice

    Benz3ne replied 3 years, 9 months ago 2 Members · 2 Replies
  • 2 Replies
  • luiscuevasii

    Member
    March 1, 2021 at 1:45 am

    It seems that white sugar doesn’t have nutrients for the yeast to grow efficiently, and the yield goes from 15-25% in both cases. I will appreciate any input 

  • Benz3ne

    Member
    March 8, 2021 at 12:56 pm

    To clarify, you’re not distilling?
    You’ll only get somewhere between 15-25% max that way depending on how hardy your yeasts are. Anything above that and it’s too challenging a condition for yeast to survive.
    Thereafter you’ll need to distil to have high concentrations of ethanol.

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