Method for preparing ethanol from beta vulgaris

Abstract

The present invention discloses a method for preparing ethanol by using beet. The method includes the following steps: beet tuber is chosen, the impurities are removed, and after being cleaned, the beet tuber is cut into shreds or cubes, so that minced raw beet material is produced; the minced raw beet material is dried and smashed to produce dry beet powder, and a moderate amount of water and distiller yeast are added into the dry beet powder, mixed and left to ferment for the first time; the primary krausen is transferred into a molecular sieve tower to be distilled for the first time, so that ethanol and wort sludge are separated out; water and alcohol yeast are added into the wort sludge obtained after the first-time distillation to produce secondary krausen; and the secondary krausenis transferred into a distilling tower to be distilled for the second time, so that ethanol is prepared. The method for producing ethanol can increase the utilization rate of materials, thus realizing the reasonable utilization of resources.

Description

A kind of method that prepares ethanol with sugar beet technical field The invention relates to a method for preparing ethanol, in particular to a method for preparing ethanol with sugar beets as raw materials. Background technique At present, the raw materials for preparing ethanol by biological fermentation mainly include sugary raw materials and starchy raw materials, etc. CN101240296A discloses a method for preparing ethanol from sugar beets. Concentrated sugar juice is obtained by concentrating under reduced pressure; during fermentation, the concentrated juice is diluted first and then the pH value is adjusted, and yeasts that can agglomerate are used to ferment and produce ethanol, but this method does not fully utilize the raw materials, and the raw materials are not easy to preserve for a long time. And the warehouse required for preservation is too large, which is not conducive to the perennial production of ethanol production enterprises. Contents of the inven...

AI Technical Summary

Problems solved by technology

At present, the raw materials for preparing ethanol by biological fermentation mainly include sugary raw materials and starchy raw materials, etc. CN101240296A discloses a method for preparing ethanol from sugar beets. Concentrated sugar juice is obtained by concentrating under reduced pressure; during fermentation, the concentrated juice is diluted first and then the pH value is adjusted, and yeasts that can agglomerate are used to ferment and produce ethanol, but this method does not fully utilize the raw materials, and the raw materials are not easy to preserve for a long time. And the warehouse required for preservation is too large, which is not conducive to the perennial production of ethanol production enterprises