Alcoholic fermentation process

An alcohol fermentation and process technology, applied in fermentation, biofuel and other directions, can solve the problems of low utilization rate of equipment, many types, quantities, and high energy consumption, so as to increase output, improve economic benefits, and simplify the alcohol fermentation process. Effect

Inactive Publication Date: 2004-06-16
任文利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are three main disadvantages in the traditional alcohol fermentation process: 1. The energy consumption is large. In the paste (liquid) process, high temperature cooking is required at 130-150°C, and the amount of steam consumed generally accounts for 30-40% of the entire alcohol production ; 2. The type and quantity of required equipment are large, and the utilization rate of equipment is low; 3. Between each process, the feed liquid is transferred and transported through pipes and tanks for many times, which consumes energy and easily causes the loss of feed liquid and miscellaneous bacteria Pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Slurry preparation process: use dried potato as raw material, with a particle size of 1-1.2 mm. First put 70-80% of the required amount of water into the conversion tank, then pour into the dried potato, add BF7658 amylase in the amount calculated according to 7-10 units / g of dry starch, stir evenly, and make a powder slurry.

[0012] In the low-temperature cooking paste (liquid) process: the steam is directly passed into the conversion tank for low-temperature cooking, and the slurry is heated to 80-92°C for 45-60 minutes to fully paste (liquid) the slurry, and then Add sufficient amount of water to make the ratio of material to liquid reach 1:6 to make paste (liquid) mash.

[0013] Saccharification process: Cool the paste (liquid) mash to 60°C, add AS·3·4309 solid glucoamylase according to the calculated dosage of 110 units / g of dry starch, add concentrated sulfuric acid to adjust the pH value to 5.0, keep the saccharification for 20 minutes, and prepare into mash. ...

Embodiment 2

[0018] Slurry preparation process: use potato dregs as raw material, with a particle size of 1-1.2 mm, first put 70-80% of water in the conversion tank, then pour in potato dregs, and use 7-10 units / g of dry starch Calculate the dosage and add BF7658 amylase, stir evenly to make a slurry.

[0019] Low-temperature cooking paste (liquid) process: the steam is directly passed into the conversion tank for low-temperature cooking. Heat the powder slurry to 80-92°C for 45-60 minutes to fully paste (liquid) the powder slurry, add enough water to make the material-liquid ratio reach 1:7, and make a paste (liquid) mash.

[0020] Saccharification process: Cool the paste (liquid) mash to 60°C, add AS·3·4309 solid glucoamylase according to the calculated dosage of 100 units / g of dry starch, add concentrated sulfuric acid to adjust the pH value to 4.5, keep saccharification for 20 minutes, and prepare into mash.

[0021] Fermentation process: cool the saccharification mash to 28-30°C, p...

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PUM

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Abstract

An alcoholic fermentation process which uses sweet potato as raw material and comprises the steps in the same conversion tank of powder grout preparation, low-temperature boiling pasting or liquefaction, saccharifying, fermentation distilling to prepare white spirit or alcohol. The invention simplifies the alcoholic fermentation process and equipment, and fully utilizes the sweet potato resource.

Description

Technical field: [0001] The invention relates to an alcohol fermentation process, in particular to a low-temperature cooking-tank alcohol fermentation process using sweet potatoes as raw materials. Background technique: [0002] The traditional alcohol fermentation process uses sweet potato as the raw material, and completes the steps of powder slurry preparation, high-temperature cooking paste (liquid) conversion, saccharification, fermentation, and distillation in different equipment to produce liquor or alcohol. There are three main disadvantages in the traditional alcohol fermentation process: 1. The energy consumption is large. In the paste (liquid) process, high temperature cooking is required at 130-150°C, and the amount of steam consumed generally accounts for 30-40% of the entire alcohol production ; 2. The type and quantity of required equipment are large, and the utilization rate of equipment is low; 3. Between each process, the feed liquid is transferred and tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06
CPCY02E50/17Y02E50/10
Inventor 任文利
Owner 任文利
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