The purpose of this research is to study the optimum conditions to produce ethanol
.From corn cob And comparative study of ethanol production by using activated carbon as catalyst. The optimal conditions for the degradation of corn dry grinding, using hydrochloric acid concentration, temperature 80 1-5%90 100 0C and time-consuming, and 10 20 30 minutes. The solution of corn cob through adjusting the sweetness, 20 BrixPH 5 and steamed at 121 0C long 20 minutes to marinate in the closet, curing temperature 30 0C long 10 day, and then measure the sugar content. Percent ethanol, reducing sugar content and acidity. Acetic.Then the comparative study Ethanol production from corn cob fermentation by yeast fermentation without yeast. S.Cerevisiae TISTR 5339 and fermentation using activated carbon and yeast as catalyst. Study of physical and chemical quality of the solution, ethanol from fermentation conditions for proper. The chemical properties of the solution, ethanol from fermentation.And density properties from the distillation of ethanol concentration, ethanol and thickness. The quality of fuel ethanol production from water it E10 and oil E20 density, the ถ่วงจำ culture pour point.
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