Method for using waste slag after preparation of ethyl hydrate with sorghum saccharatum straw

Abstract

The invention relates to a method for utilizing sorgo straw waste residue after ethanol preparation, which comprises the following steps: weighing the sorgo straw waste residue after ethanol preparation in a loose state at a temperature of between 80 and 100 DEG C according to the demanded weight standard, bagging the waste residue, extracting vacuum by a vacuum package machine, and sealing the waste residue to prepare the sterile vacuum-packed sorgo straw waste residue. The method adopts the principle that the sorgo straw waste residue is distilled for more than 20 minutes in the steam at a temperature of more than 100 DEG C and achieves the sterilizing effect, and the hot sorgo straw waste residue is packed into a heat-resisting plastic packing bag, vacuumized in time and sealed, so the fodder greatly reduces contamination chance; and when the temperature of the fodder is reduced, the packing bag further shrinks, so the fresh-preservation period of the fodder is greatly prolonged, the fodder is convenient to store and transport, is healthy for part livestock and poultry, and avoids resource waste.

Description

technical field [0001] The invention relates to a method for utilizing waste residue after producing ethanol from sweet sorghum straw. Background technique [0002] There have been reports in the literature on the production of ethanol from biomass, especially sweet sorghum stalks, through fermentation and distillation. However, there are few reports on how to use the waste residue after sweet sorghum stalks are fermented and distilled to produce ethanol. The waste residue after ethanol production from sweet sorghum straw is mainly used as high-quality feed for some livestock and poultry at present, but because it is easy to be contaminated with bacteria, difficult to keep fresh, and not resistant to storage, the utilization rate of waste residue is greatly reduced, resulting in waste of resources. Contents of the invention [0003] Based on the above reasons, the present invention provides a method that can greatly improve the utilization rate of waste residue after etha...

AI Technical Summary

Problems solved by technology

The waste residue after producing ethanol from sweet sorghum straw is mainly used as high-quality feed for some livestock and poultry at present, but because it is easy to be contaminated with bacteria, difficult to keep fresh, and not resistant to storage, the utilization rate of waste residue is greatly reduced, resulting in waste of resources