Alcohol extraction process with cellulose as raw material

A technology of alcohol extraction and cellulose, applied in the direction of biofuels, fermentation, etc., can solve problems such as cost increase, difficulty in effective promotion and application, and food shortage, so as to reduce production cost, avoid food resource shortage, and increase heating area.

Pending Publication Date: 2020-02-18
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AI-Extracted Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an alcohol extraction process using cellulose as a raw material, which solves the problem of using food c...
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The invention discloses an alcohol extraction process with cellulose as a raw material, relates to the technical field of energy extraction, and specifically relates to the alcohol extraction processwith cellulose as the raw material. According to the present invention, crop straw and bagasse are used as main raw materials to produce alcohol, the cost of production is effectively reduced, and theproblem occurrence of food resource shortage is avoided; according to the present invention, aspergillus saccharification is carried out by the amylase of aspergillus to produce fermentable sugars which are utilized by yeasts, and aspergillus is an aerobic microorganism, so sufficient air must be provided during the process of reproduction and growth; and according to the present invention, cropstraw is crushed by a two-level crusher, then bagasse is added to conduct a one-level crushing, the purpose of crushing the raw materials is to increase the heating area of the raw materials, which isconducive to starch particles contained in the raw material cells capable of freeing from the cells, and fully absorbing water to swell up, gelatinize and even dissolve.

Application Domain


Technology Topic

YeastAmylase +13


  • Alcohol extraction process with cellulose as raw material


  • Experimental program(1)

Example Embodiment

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] like figure 1 As shown, the present invention provides a kind of technical scheme: a kind of alcohol extraction process using cellulose as raw material, comprises the following steps:
[0027] S001: Raw material preparation, crop straw and bagasse;
[0028] S002: Raw material crushing, now the crop straw is crushed with a secondary crusher, and then bagasse is added for primary crushing;
[0029] S003: cooking and gelatinizing, putting the pulverized raw materials in S002 into a cooking pot for cooking;
[0030] S004: Aspergillus saccharification;
[0031] S005: yeast fermentation;
[0032] S006: distillation and purification.
[0033] Said S003: the cooking temperature in cooking and gelatinization is 260-300° C., and the cooking time is 30-32 hours.
[0034] Said S004: Aspergillus saccharification, adding Aspergillus to the steamed and gelatinized raw material in S003, and performing saccharification by amylase of Aspergillus to generate fermentable sugar for use by yeast.
[0035] After the S004 Aspergillus saccharification, sulfuric acid and sodium hydroxide are added for acid-base hydrolysis.
[0036] Said S005: Yeast fermentation, put the raw material saccharified by S004 Aspergillus into a fermenter, and add distiller's yeast for fermentation.
[0037] The distiller's cell liquid added during the S005 yeast fermentation is controlled at 1-120 million/mL; the distiller's alcohol content is controlled at 3%-3.5% V/V, and the culture temperature of the fermenter is controlled at 33-36°C.
[0038] The S006: Distillation and purification, using four distillation towers for distillation and purification.


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Description & Claims & Application Information

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