Method for industrial production of ethyl alcohol by using straw or corn or Chinese sorghum straw

The technology of sorghum straw and straw is applied in the field of processing technology for producing ethanol, and can solve the problems of large amount of enzyme, environmental pollution, large amount of acid and alkali, etc.

Inactive Publication Date: 2007-09-26
湖南省原子能农业应用研究所 +1
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in industrial production and application, the main problems are high straw transportation and storage costs, large acid and alkali consumption and low recovery, ...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] Press 150kg of rice straw into straw bricks with a volume of 1 cubic meter, and put them into a 200,000-curie 60 Co-γ radiation source for radiation treatment, the radiation dose is 0.5~2.0×10 6 Gy, mechanically pulverize the irradiated straw through a 200-mesh sieve, then extract it with hot water to obtain hemicellulose, then use ethanol to extract the lignin, mix the rice straw powder with the cellulose enzyme solution and hydrolyze it, and the enzyme The solution temperature is 48°C, the pH value is 4.8, and the enzyme concentration is 35U / g. A nuclear pore membrane of 1-2 μm is used to separate the enzymatic hydrolysis substrate from the degradation product. The pentose and hexose sugars produced by the degradation of hemicellulose and cellulose were simultaneously fermented by Saccharomyces cerevisiae and Pichia pastoris, and the wet weight of yeast was 0.03g / mL of fermentation broth. The fermentation temperature is 32°C, and the ethanol produced is dehydrated a...

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

No PUM Login to view more

Abstract

The invention discloses a processing craft with rice straw or corn or sorghum straw to produce industrial alcohol, which comprises the following steps: pressing the rice straw and straw to brick; disposing with 60Co-gama ray of 0.5-2.0X106Gy or electron-beam accelerator; grinding with mechanical; screening through 200 order sieve; leaching with hot water; stripping lignin with alcohol; degrading enzyme; separating 1-2 mu m cord hole film; synchronous-saccharifying saccharomyces cerevisiae and pichia; dispersing and yeasting; dewatering and separating the alcohol; getting the product.

Description

technical field [0001] The invention relates to a processing technology for industrially producing ethanol from rice straw, corn or sorghum straw. Background technique [0002] The traditional straw lignocellulose degradation process is to pretreat straw lignocellulose with dilute acid, dilute alkali, microwave, ultrasonic wave, steam explosion, etc., directly degrade cellulase into reducing sugar, and produce ethanol liquid through a step-by-step saccharification and fermentation process fuel. At present, in industrial production and application, the main problems are high straw transportation and storage costs, large acid and alkali consumption and low recovery, serious environmental pollution, expensive recovery equipment, high production cost of cellulase, low enzymatic hydrolysis efficiency, and large enzyme consumption, etc. question. Contents of the invention [0003] The purpose of the present invention is to provide a process for producing ethanol liquid fuel fr...

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
IPC IPC(8): C12P7/10
CPCY02E50/16Y02E50/10
Inventor 王克勤熊兴耀
Owner 湖南省原子能农业应用研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap