Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A processing method for producing alcohol by adding cassava residue and molasses

A processing method and technology of cassava residue, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of increased sulfuric acid consumption, equipment corrosion, environmental hazards, etc., to improve resource recycling and reduce equipment. The effect of reducing the loss and reducing the pressure of decolorization

Active Publication Date: 2019-10-25
GUANGXI LUOCHENG KECHAO FOUND SCI & TECH DEV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Domestic molasses alcohol production is mainly through adding sulfuric acid to acidify molasses, inhibiting bacterial growth and reproduction, and clarifying a small amount of colloids and ash that settle. In recent years, due to the continuous decline in the purity of molasses, the amount of sulfuric acid has been increasing. The amount of sulfuric acid consumed per ton of alcohol has increased from 20 to Increase from 30 kg to 50-60 kg. While sulfuric acid inhibits miscellaneous bacteria, it will also inhibit the reproduction and fermentation of yeast to varying degrees, affecting the yield of raw materials
Extensive use of concentrated sulfuric acid will not only cause great harm to the environment, but also easily cause equipment corrosion and fouling, and will increase the difficulty of alcohol waste liquid treatment, increasing investment in alcohol environmental protection
[0004] At present, there have been many studies on the production of alcohol by molasses acid-free fermentation. For example, Chinese patent CN105861568 A discloses a method for molasses to ferment alcohol without adding acid. Dilute and heat the molasses to achieve the effect of not adding sulfuric acid and recovering the heat energy generated in the waste water process. However, after the molasses is fermented by this method, it will increase the difficulty of decolorization when the waste liquid is treated, and this method needs to add fungicides, which will further increase The amount of use of cost, although using this method to carry out alcohol distillation has utilized the waste heat of alcohol distillation waste liquid, still does not disclose the method that further utilizes alcohol distillation to carry out impurity removal, the biggest energy consumption in the alcohol production is in the distillation part, in order to reduce Energy loss should be further studied and the method of waste heat utilization. For this reason, there are also some methods for carrying out waste heat recovery and utilization for alcohol distillation. For example, Chinese patent CN 1736527 A discloses an alcohol five-tower differential pressure distillation device and its technology. This technology utilizes many A technical combination of reusing heat can reduce the steam consumption index and achieve the effect of saving energy and reducing consumption. However, using this method to improve the device is relatively complicated and the improvement cost is high. Therefore, in the molasses alcohol processing method, it is necessary to solve The following problems (1) further reduce the energy consumption of the alcohol production process through reasonable improvement; (2) the resource recycling rate of the processing process of molasses alcohol is low; (3) the acid-free fermentation of molasses alcohol does not need to add fungicides

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A processing method for producing alcohol by adding cassava residue and molasses
  • A processing method for producing alcohol by adding cassava residue and molasses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Pretreatment: the cassava residue after starch extraction and waste molasses are mixed according to a weight ratio of 1:1 to obtain a mixture, the starch content of the cassava residue is 7%, and the brix of the molasses waste liquid is 70° Bx;

[0045] (2) Cooking: Add 10u / g of high temperature-resistant α-amylase to the mixture of step (1) for precooking, the precooking temperature is 50°C, and the precooking time is 20min. After the precooking is completed, it is heated to 95°C. The post-ripener is maintained for 90 minutes to obtain liquefied mash;

[0046] (3) Saccharification: the liquefied mash enters the mash pot for saccharification to obtain mash. The amount of saccharification enzyme added during the saccharification process is 150u / g. The saccharification temperature is 50°C and the saccharification time is 20 minutes;

[0047] (4) Fermentation: adopt continuous fermentation method to ferment to obtain mature mash, the alcohol concentration of mature ma...

Embodiment 2

[0050] (1) Pretreatment: the cassava dregs after starch extraction and waste molasses are mixed according to the weight ratio of 1:1 to obtain a mixture, the starch content of the cassava dregs is 9%, and the brix of the molasses waste liquid is 80° Bx;

[0051] (2) Cooking: add 15u / g high temperature resistant α-amylase to the mixture of step (1) for precooking, the precooking temperature is 60°C, the precooking time is 30min, after the precooking is completed, heat to 105°C The post-ripener is maintained for 120 minutes to obtain liquefied mash;

[0052] (3) Saccharification: the liquefied mash enters the mash pot for saccharification to obtain mash. The amount of saccharification enzyme added during the saccharification process is 200u / g. The saccharification temperature is 65°C and the saccharification time is 30 minutes;

[0053] (4) Fermentation: adopt continuous fermentation method to ferment to obtain mature mash, the alcohol concentration of mature mash is greater th...

Embodiment 3

[0056] (1) Pretreatment: the cassava residue after starch extraction and waste molasses are mixed according to a weight ratio of 1.5:1 to obtain a mixture, the starch content of the cassava residue is 8%, and the brix of the molasses waste liquid is 75 ° Bx;

[0057](2) Cooking: add 13u / g high temperature resistant α-amylase to the mixture of step (1) for precooking, the precooking temperature is 55°C, and the precooking time is 25min, after the precooking is completed, heat to 100°C The post-ripener is maintained for 100 minutes to obtain liquefied mash;

[0058] (3) Saccharification: the liquefied mash enters the saccharification pot for saccharification to obtain saccharification mash, the amount of saccharification enzyme added in the saccharification process is 180u / g, the saccharification temperature is 60°C, and the saccharification time is 25min;

[0059] (4) Fermentation: adopt continuous fermentation method to ferment to obtain mature mash, the alcohol concentration...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
brixaaaaaaaaaa
Login to View More

Abstract

The invention relates to an alcohol production process, and in particular to a processing method for producing alcohol by adding cassava residue and molasses. The method includes the following steps: (1) pretreatment (2) cooking (3) saccharification (4) fermentation (5) Distillation: The invention further improved the process by recycling the cassava residue after starch extraction and mixing it with waste molasses as raw materials, using acid-free fermentation without adding bacteriostatic agents or bactericides during the fermentation process, and improving the five-tower distillation process. The purpose of improving product quality, saving raw materials, saving energy and reducing consumption, reducing costs and improving economic benefits has been achieved.

Description

【Technical field】 [0001] The invention relates to an alcohol production process, in particular to a processing method for producing alcohol by adding cassava residue and molasses. 【Background technique】 [0002] Molasses is a by-product of sugarcane or beet sugar factories, also known as waste honey. Its main components include sucrose, reducing sugar, amino acids, vitamins and trace elements and other nutrients. It is a good raw material for the fermentation of alcohol, yeast, amino acids and other fermented products Molasses also contains inorganic salt ash, colloid and other substances that yeast cannot use. In recent years, in order to increase the sugar yield and improve the quality of white sugar products, many sugar factories tend to use strong alkali, high sulfur, high ash and other sugar production methods. process, the purity of the by-product molasses decreases, and the content of non-sugar impurities such as ash and colloids continues to increase. [0003] Domes...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/08C07C29/80C07C31/08
CPCC12P7/08C07C29/80C07C31/08Y02E50/10
Inventor 谢永卫
Owner GUANGXI LUOCHENG KECHAO FOUND SCI & TECH DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com