Method for producing fuel ethanol by sugar grass stalk juice

A technology of fuel ethanol and sweet sorghum, applied in the direction of microorganism-based methods, biofuels, methods of supporting/immobilizing microorganisms, etc., can solve the problems of small contact area between yeast and juice, short metabolic life of yeast, and slow fermentation speed, etc., to achieve The effect of intense reaction, fast fermentation speed, and expanded contact times

Inactive Publication Date: 2010-11-03
杨永福 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the process of producing ethanol from sweet sorghum stalk juice has many disadvantages: 1. Extensive juicing leads to low yield of liquid; 2. No modulation of juice leads to low yield of ethanol; Liquid) form, added to the fermentation process, resulting in a small contact area between the yeast and the juice, slow reaction, and short metabolic life of the yeast with a large loss
4. The fermentation process is carried out in three stages (early stage, middle stage and late stage), resulting in slow fermentation speed, low yield and low ethanol yield

Method used

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  • Method for producing fuel ethanol by sugar grass stalk juice
  • Method for producing fuel ethanol by sugar grass stalk juice
  • Method for producing fuel ethanol by sugar grass stalk juice

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the examples. It should be understood that these examples are only for the purpose of illustration, and in no way limit the protection scope of the present invention.

[0033] Specially cite an embodiment to illustrate the concrete steps of the method of the present invention, its flow process is as follows figure 1 shown.

[0034] 1. Pre-treatment of juicing: Harvest sweet sorghum when the sugar content of the stalks is high, take the stalks after harvesting, and remove the branches, leaves and sheath wrapped on the stalks , and then cleaning treatment. The cleaning wastewater is recycled after sedimentation, and its waste residue is discharged into the biogas digester for utilization.

[0035] 2. Juicing: The pretreated sweet sorghum stalks are subjected to conventional juicing treatment, and then the liquid slag can be separated through conventional sedimentation transition to obtain clean ju...

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Abstract

The invention relates to a method for producing fuel ethanol by sugar grass stalk juice and a device; the stalk pretreatment, juice modulation, immobilization yeast particles and fluidization quick fermentation new processes are adopted to prepare the fuel ethanol; the fermentation process is continuous, the equipment is advanced, the fermentation speed is rapid, the reaction is full, the output is high, and the ethanol yield is high, no three-waste exhaust exists, secondary utilization is carried out totally, a great amount of investment, labor cost and raw material cost are reduced, the economic benefit is improved obviously, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to a method for preparing fuel ethanol from crop stalk juice, in particular to a method for preparing fuel ethanol from sweet sorghum stalk juice. Background technique [0002] Fuel ethanol refers to anhydrous ethanol that can be used as fuel. Fuel ethanol is added with denaturant to become denatured fuel ethanol. Denatured fuel ethanol and gasoline are mixed in a certain proportion to become ethanol gasoline for vehicles. The best fuel, it has the advantages of cheap, clean, environmentally friendly, safe, renewable and so on. The production of fuel ethanol is to provide raw materials for vehicle ethanol gasoline. [0003] Sweet sorghum, also known as sugar sorghum, is a variety of common grain sorghum (sorghum bicolor (L.) Moench), which is characterized by fast growth, rich stalk juice, high sugar content, and high stress resistance, drought resistance , Waterlogging resistance, salt and alkali resistance, and barrenness resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06C12N11/04C12M1/09C10L1/02C12R1/645
CPCC12M21/12Y02E50/17C12M25/20Y02E50/10
Inventor 杨永福杨戈
Owner 杨永福
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