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Preparation method of ethanol

A technology of ethanol and raw materials, applied in the field of ethanol preparation, can solve problems affecting the continuous production of ethanol, pipeline blockage, etc.

Active Publication Date: 2011-11-23
COFCO GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing enzymolysis device is used for enzymolysis, the material to be enzymatically can easily block the pipeline, which also affects the continuous production of ethanol

Method used

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  • Preparation method of ethanol
  • Preparation method of ethanol
  • Preparation method of ethanol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0100] According to a preferred embodiment of the present invention, the impurity removal device further includes at least one screen, the screen is located in the delivery pipeline 110 and the plane where the screen is located is perpendicular to the longitudinal direction of the delivery pipeline 110 . Therefore, when the raw material with large particle size is conveyed in the conveying pipeline 110 , impurities doped in the raw material with large particle size can be removed through the screen.

[0101] One sieve can also be provided, preferably a plurality of sieves, so as to give full play to the function of the sieve to remove foreign matter. The screen can be installed in the delivery pipe 110 in various ways, for example, the screen can be fixed (such as welding, snap fit, etc.) on the inner surface of the side wall of the delivery pipe 110 .

[0102] But, in order to be able to clean up the sundries remaining on the sieve in time, to keep the patency of delivery pi...

Embodiment 1

[0151] This embodiment is used to illustrate the method for preparing ethanol from cassava of the present invention

[0152] (1) use Figure 15 The enzymatic hydrolysis device shown performs enzymatic hydrolysis.

[0153] The enzymolysis device includes a flash tower 210, a heat source 220, an enzymolysis tank 230, a material source 240, a vacuum pump 250 and a condenser 280, and the flash tower 210 includes a first interface 211, a second interface 212, a third interface 213 and at least one discharge port, the material source 240 communicates with the flash tower 210 through the first interface 211, the enzymolysis tank 230 communicates with the discharge port of the flash tower 210, and the vacuum pump 250 communicates with the second port 212 of the flash tower 210 The heat source 220 communicates with the third port 213 of the flash tower 210 , and the condenser 280 communicates with the top of the flash tower 210 . The number of trays of the flash tower is 6, and from ...

Embodiment 2

[0170] This embodiment is used to illustrate the method for preparing ethanol from cassava of the present invention

[0171] Prepare ethanol according to the method of embodiment 1, the difference is, use Figure 16 The enzymatic hydrolysis device shown performs enzymatic hydrolysis.

[0172] The enzymolysis device includes a flash tower 210, a heat source 220, an enzymolysis tank 230, a material source 240, a vacuum pump 250 and a condenser 280, and the flash tower 210 includes a first interface 211, a second interface 212, a third interface 213 and at least one discharge port, the material source 240 communicates with the flash tower 210 through the first interface 211, the enzymolysis tank 230 communicates with the discharge port of the flash tower 210, and the vacuum pump 250 communicates with the second port 212 of the flash tower 210 Connected, the condenser 280 is communicated with the top of the flash tower 210, and the heat source (2) is communicated with the third i...

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Abstract

The invention provides a preparation method of ethanol. The method comprises the steps of: crushing yam materials, mixing the crushed product with an enzyme in an enzymolysis device for enzymolysis, thus obtaining an enzymolysis product; fermenting the enzymolysis product. Wherein, the yam material crushing includes crushing a mixture of yam particles and foreign materials and separating the yam particles and the foreign materials. The enzymolysis device consists of a flash column, a heat source, an enzymolysis pot, a material source and a vacuum pump. The flash column comprises a first interface, a second interface, a third interface and at least one discharging hole. Specifically, the material source is communicated with the flash column through the first interface, the enzymolysis pot is communicated with the discharging hole of the flash column, the vacuum pump is communicated with the second interface of the flash column, and the heat source is communicated with the third interface of the flash column. The method of the invention can realize continuous production and also can save energy.

Description

technical field [0001] The present invention relates to a method for preparing ethanol. Background technique [0002] In various occasions of industrial application, the preparation of slurry is often required. For example, in a factory producing ethanol, the usual process is: first, the raw materials (such as block, flake or granular cassava, sweet potato, potato, etc.) Larger raw materials are crushed into smaller or finer raw materials, and then water and finer raw materials are mixed through a pulping device to form a slurry, and then the obtained slurry is subjected to enzymatic hydrolysis and fermentation treatment, and finally ethanol is obtained . [0003] In this traditional process, the conveyed raw materials are inevitably mixed with impurities, such as finer sand, larger stones, or plastic products such as strips of plastic cloth or woven bags. residues. Moreover, the raw materials cannot be thoroughly cleaned before entering the processing process, especiall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06C12R1/645
CPCY02E50/17Y02E50/10
Inventor 岳国君柳树海严明奕刘玉华崔师泰郝慧英邓立康王利
Owner COFCO GROUP