Supercharge Your Innovation With Domain-Expert AI Agents!

Device for producing fuel ethanol by furfural residue forced circulation high-solid gas stripping fermentation

A forced circulation, fuel ethanol technology, applied in biochemical cleaning devices, enzymology/microbiology devices, biological material sampling methods, etc., can solve problems such as yeast poisoning, increase utilization, enhance yeast cell activity, Toxic reduction effect

Pending Publication Date: 2020-05-22
SHANDONG UNIV OF SCI & TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems existing in the synchronous saccharification and fermentation reactor in the prior art, in order to solve the problem of fully mixing and utilizing the yeast mixed liquid rich in cellulase in the fermentation process of high solid content furfural residue, and the influence of alcohol accumulation in the fermentation liquid on the yeast To solve the problem of toxic effects, the present invention provides a device for producing fuel ethanol by forced circulation high-solid gas stripping fermentation with simple process and remarkable effect

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
  • Device for producing fuel ethanol by furfural residue forced circulation high-solid gas stripping fermentation
  • Device for producing fuel ethanol by furfural residue forced circulation high-solid gas stripping fermentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The washed furfural residue, cellulase and Saccharomyces cerevisiae dry powder are fed into the forced circulation air-lift fermenter (1) through the feed port (5), the total solid content is 50%, and the amount of cellulase added is 30 FPU / g (based on glucan content), the addition amount of Saccharomyces cerevisiae dry powder is 1 g / L, the temperature of enzymolysis and fermentation is controlled at 35°C, and the pH is 5.0. The furfural slag material is connected to the discharge valve (10) through the feed liquid outlet (3), forced to circulate through the discharge pump (11) and sprayed into the fermentation tank through the inlet (4) to realize the forced circulation of the furfural slag fermentation material;

[0026] The air enters the distribution pipes (8) through the main air intake pipe (7), and enters the fermentation tank through the air intake holes (14) on the upper part of each branch pipe (9). After 24 hours, the air is stopped and the carbon dioxide ga...

Embodiment 2

[0028] The furfural slag, cellulase and Saccharomyces cerevisiae seed liquid after alkaline pretreatment are sent into the forced circulation air-lift fermenter (1) through the feed port (5), the total solid content is 55%, and the addition of cellulase The amount is 35 FPU / g (based on glucan content), the addition amount of Saccharomyces cerevisiae seed solution is 10%, the temperature of enzymolysis and fermentation is controlled at 38°C, and the pH is 5.5. The furfural slag material is connected to the discharge valve (10) through the feed liquid outlet (3), forced to circulate through the discharge pump (11) and sprayed into the fermentation tank through the inlet (4) to realize the forced circulation of the furfural slag fermentation material;

[0029] The air enters the distribution pipes (8) through the main air intake pipe (7), and enters the fermentation tank through the air intake holes (14) on the upper part of each branch pipe (9). After 12 hours, the air is stoppe...

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 relates to a device for producing fuel ethanol by furfural residue forced circulation high-solid gas stripping fermentation. The device comprises a forced circulation gas stripping fermentation tank, a discharging pump, a water scrubber and a compressor, wherein the bottom of the fermentation tank is provided with a dendritic gas distributor and a forced circulation feed liquid outlet, the middle upper part of the fermentation tank is provided with a forced circulation feed liquid inlet, and the top of the fermentation tank is provided with a feed port and a gas outlet; and the dendritic gas distributor comprises a main gas inlet pipe, distribution pipes and branch pipes. The forced circulation feed liquid outlet is connected to a discharging valve, and a material is sprayedinto the fermentation tank after forced circulation of the discharging pump, so that forced circulation of the furfural residue material is realized. Gas enters each distribution pipe through the maingas inlet pipe and is introduced into the fermentation tank through a gas inlet hole in the upper part of each branch pipe, so that gas stripping fermentation and bubbling stirring of the furfural residue material are realized; and gas exhausted from the top of the fermentation tank enters the water scrubber through a gas inlet in the bottom of the water scrubber to remove ethanol, enters the compressor through the gas outlet in the upper portion of the water scrubber to be pressurized and then returns to the fermentation tank to be recycled, and mixed liquor of alcohol and water is exhaustedfrom the bottom of the water scrubber.

Description

technical field [0001] The invention relates to the technical field of preparing fuel ethanol by fermentation of biomass, in particular to a device for producing fuel ethanol by forced circulation of furfural slag and high-solid gas stripping fermentation. Background technique [0002] Furfural slag is the waste residue of furfural production in industry. For every ton of furfural produced, about 12 to 15 tons of furfural slag are produced. Most of these waste residues are disposed of by stacking, dumping in pits, or direct boiler combustion, which not only occupies a lot of land, pollutes the environment , and a waste of resources. In the furfural production process, corncobs are generally used as raw materials, and acid (5-8%) hydrolysis is carried out under high temperature (175-185°C) conditions, in which hemicellulose is converted into furfural, while most of the cellulose and lignin are retained. Therefore, cellulose-rich furfural slag can be saccharified and fermente...

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): C12M1/40C12M1/04C12M1/00C12R1/865
CPCC12M21/12C12M21/18C12M29/00C12M33/00
Inventor 周海峰田原宇乔英云史欣欣
Owner SHANDONG UNIV OF SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com