CN104651010A - Method for making fuels by utilizing fermentation of waste cotton clothes - Google Patents
Method for making fuels by utilizing fermentation of waste cotton clothes Download PDFInfo
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- CN104651010A CN104651010A CN201410781980.3A CN201410781980A CN104651010A CN 104651010 A CN104651010 A CN 104651010A CN 201410781980 A CN201410781980 A CN 201410781980A CN 104651010 A CN104651010 A CN 104651010A
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Abstract
The invention discloses a method for making fuels by utilizing fermentation of waste cotton clothes, and belongs to the technical field of resource regeneration. The method comprises six steps of pretreatment, acidification, hydrolysis and saccharification, filtration, neutralization and fermentation. The used raw materials are waste cotton clothes, so that the handling problem of the waste cotton clothes is solved, and the produced alcohol serving as a cleaning fuel has an extremely high application value and an economic benefit in the resource-poor and energy-scarcity modern society.
Description
Technical field
The invention belongs to resource recovery technical field, specifically a kind of method utilizing the fermentation of waste and old cotton clothes to do fuel.
Background technology
The scarcity of resource and contaminated, this is the problem of current global facing.And the life of textile industry and people is closely related, world today's textile industry is also faced with two large problems: one is the development along with world economy and science and technology, the Application Areas of textiles expands gradually, but its life cycle shortens on the contrary, in addition the growth at full speed of world population, the consumption of textiles has increase, and cause textile raw material to occur in short supply, price significantly raises up.Two is that a large amount of used friperie is mostly taken as garbage bury or burning, and this both caused the wasting of resources, polluted environment again.The completing of clothes contains a complicated industrial chain and a large amount of energy consumptions, and in the energy and resource more and more nervous today, the recycling of waste and old clothing will become the focus that everybody pays close attention to.
It is an industrial field gone from strength to strength that waste and old clothing reclaims.Consider from the angle of economy, textile fibres price main at present raises up and also impels producer to think better of how to improve profit.Strengthen the recycling of waste and old clothing waste material, turn waste into wealth, not only significant to the deficiency making up textile raw material, and be that cost is low, high efficiency, resource reutilization, energy-conserving and environment-protective project.
At present, great majority reclaim for waste and old clothing and all adopt physiochemical mutagens method, namely carry out preliminary mechanical processing, the method such as shredding or melting, are re-used as the weighting material such as toy or pillow or industrial use fabric.This method less investment, technology is simple, but its regenerated fibre poor quality obtained, enterprise profit is low, significantly limit recovery value and the regeneration economic worth of waste and old clothing.
Chinese patent CN103665426A discloses a kind of method reclaiming cotton fibre from waste and old clothing, unrelated to the invention.
Summary of the invention
The object of the invention is to the above-mentioned vacancy existed for prior art, a kind of method utilizing the fermentation of waste and old cotton clothes to do fuel is provided.
For achieving the above object, concrete technical scheme provided by the invention is as follows:
Utilize waste and old cotton clothes to do a method for fuel, its step comprises:
1) pre-treatment: the sodium hydroxide solution adding 2% ~ 8% concentration to the waste and old cotton clothes collected, ultrasonic cleaning 2 ~ 3 hours in 20 ~ 40 DEG C water, dirty stain on washing removing clothing and dirt, then dry chopping, remove slide fastener, button and other appurtenants;
2) acidifying: tab ends good for pre-treatment is mixed with dilute acid soln the tab ends contacting and obtain acidifying;
3) hydrolysis and saccharification: in presence of water, under 85 ~ 95 degrees Celsius of solution temperature conditions, reacts described acidified tab ends and oxidising agent to 7 ~ 12 days;
4) filter: with the solid in strainer filtering solution, the solution obtained is the glucose solution of hydrolysis;
5) neutralize: with sodium hydroxide solution, the pH value of glucose solution is adjusted in neutral;
6) ferment: add in fermentor tank using glucose solution as carbon source, fermentation obtains fuel alcohol.
Described step 2) in tab ends and dilute acid soln Contact Temperature be 25 ~ 35 degrees Celsius, duration of contact is 12 ~ 24 hours.
Described step 2) described in dilute acid soln be the hydrochloric acid soln of massfraction 9 ~ 10%.
Described step 2) and step 3) in solid-liquid than for 3:100 ~ 4:100.
Described step 6) in fermentation process can be decompression fermentation method or rapid fermentation method.
The invention has the beneficial effects as follows:
The raw material that the present invention adopts is waste and old cotton clothes, on the one hand solves waste and old cotton clothes process problem, and the alcohol produced on the other hand under the society now of scarcity of resources and energy scarcity, has high using value and economic benefit as clean fuel.
Embodiment
Embodiment 1
Pre-treatment: the sodium hydroxide solution adding 2% concentration to the waste and old clothing collected, ultrasonic cleaning 2 hours in 20 DEG C water, the dirty stain on washing removing clothing and dirt, then dry chopping, remove slide fastener, button and other appurtenants;
Acidifying: mixed with the hydrochloric acid soln of massfraction 9% by tab ends good for pre-treatment and contact, Contact Temperature is 25 degrees Celsius, and duration of contact is 12 hours, obtains the tab ends of acidifying;
Hydrolysis and saccharification: in presence of water, under 85 degrees Celsius of solution temperature conditions, reacts described acidified tab ends and oxidising agent to 7 days;
Filter: with the solid in strainer filtering solution, the solution obtained is the glucose solution of hydrolysis;
Neutralization: the pH value of glucose solution is adjusted in neutral with sodium hydroxide solution;
Fermentation: add in fermentor tank as carbon source using glucose solution, obtains fuel alcohol with decompression fermentation method or rapid fermentation method fermentation.
Embodiment 2
Pre-treatment: the sodium hydroxide solution adding 8% concentration to the waste and old clothing collected, ultrasonic cleaning 3 hours in 40 DEG C water, the dirty stain on washing removing clothing and dirt, then dry chopping, remove slide fastener, button and other appurtenants;
Acidifying: mixed with the hydrochloric acid soln of massfraction 10% by tab ends good for pre-treatment and contact, Contact Temperature is 35 degrees Celsius, and duration of contact is 24 hours, obtains the tab ends of acidifying;
Hydrolysis and saccharification: in presence of water, under 95 degrees Celsius of solution temperature conditions, reacts described acidified tab ends and oxidising agent to 12 days;
Filter: with the solid in strainer filtering solution, the solution obtained is the glucose solution of hydrolysis;
Neutralization: the pH value of glucose solution is adjusted in neutral with sodium hydroxide solution;
Fermentation: add in fermentor tank as carbon source using glucose solution, obtains fuel alcohol with decompression fermentation method or rapid fermentation method fermentation.
Embodiment 3
Pre-treatment: the sodium hydroxide solution adding 6% concentration to the waste and old clothing collected, ultrasonic cleaning 3 hours in 35 DEG C water, the dirty stain on washing removing clothing and dirt, then dry chopping, remove slide fastener, button and other appurtenants;
Acidifying: mixed with the hydrochloric acid soln of massfraction 9.5% by tab ends good for pre-treatment and contact, Contact Temperature is 30 degrees Celsius, and duration of contact is 24 hours, obtains the tab ends of acidifying;
Hydrolysis and saccharification: in presence of water, under 95 degrees Celsius of solution temperature conditions, reacts described acidified tab ends and oxidising agent to 10 days;
Filter: with the solid in strainer filtering solution, the solution obtained is the glucose solution of hydrolysis;
Neutralization: the pH value of glucose solution is adjusted in neutral with sodium hydroxide solution;
Fermentation: add in fermentor tank as carbon source using glucose solution, obtains fuel alcohol with decompression fermentation method or rapid fermentation method fermentation.
Claims (4)
1. utilize waste and old cotton clothes to ferment and do a method for fuel, it is characterized in that, comprise the following steps:
1) pre-treatment: the sodium hydroxide solution adding 2% ~ 8% concentration to the waste and old cotton clothes collected, ultrasonic cleaning 2 ~ 3 hours in 20 ~ 40 DEG C water, dirty stain on washing removing clothing and dirt, then dry chopping, remove slide fastener, button and other appurtenants;
2) acidifying: tab ends good for pre-treatment is mixed with dilute acid soln the tab ends contacting and obtain acidifying;
3) hydrolysis and saccharification: in presence of water, under 85 ~ 95 degrees Celsius of solution temperature conditions, reacts described acidified tab ends and oxidising agent to 7 ~ 12 days;
4) filter: with the solid in strainer filtering solution, the solution obtained is the glucose solution of hydrolysis;
5) neutralize: with sodium hydroxide solution, the pH value of glucose solution is adjusted in neutral;
6) ferment: add in fermentor tank using glucose solution as carbon source, fermentation obtains fuel alcohol.
Described step 2) in tab ends and dilute acid soln Contact Temperature be 25 ~ 35 degrees Celsius, duration of contact is 12 ~ 24 hours.
2. according to claim 1ly a kind ofly utilize waste and old cotton clothes to ferment to do the method for fuel, it is characterized in that, described step 2) described in dilute acid soln be the hydrochloric acid soln of massfraction 9 ~ 10%.
3. according to claim 1ly a kind ofly utilize waste and old cotton clothes to ferment to do the method for fuel, it is characterized in that, described step 2) and step 3) in solid-liquid than being 3:100 ~ 4:100.
4. according to claim 1ly a kind ofly utilize waste and old cotton clothes to ferment to do the method for fuel, it is characterized in that, described step 6) in fermentation process can be decompression fermentation method or rapid fermentation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410781980.3A CN104651010A (en) | 2014-12-15 | 2014-12-15 | Method for making fuels by utilizing fermentation of waste cotton clothes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410781980.3A CN104651010A (en) | 2014-12-15 | 2014-12-15 | Method for making fuels by utilizing fermentation of waste cotton clothes |
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| Publication Number | Publication Date |
|---|---|
| CN104651010A true CN104651010A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410781980.3A Pending CN104651010A (en) | 2014-12-15 | 2014-12-15 | Method for making fuels by utilizing fermentation of waste cotton clothes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885993A (en) * | 2016-06-02 | 2016-08-24 | 铜陵兴茂农业专业合作社 | Composite sawdust-based biomass particles of waste cotton clothes and preparation method of particles |
| WO2018197756A1 (en) * | 2017-04-27 | 2018-11-01 | Infinited Fiber Company Oy | Treatment process for textile-based materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431313A (en) * | 2003-01-24 | 2003-07-23 | 重庆易纬环保技术有限公司 | Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost |
| CN102476128A (en) * | 2010-11-29 | 2012-05-30 | 华中农业大学 | Method for green conversion of urban and rural household reuse into renewable energy sources |
-
2014
- 2014-12-15 CN CN201410781980.3A patent/CN104651010A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431313A (en) * | 2003-01-24 | 2003-07-23 | 重庆易纬环保技术有限公司 | Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost |
| CN102476128A (en) * | 2010-11-29 | 2012-05-30 | 华中农业大学 | Method for green conversion of urban and rural household reuse into renewable energy sources |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885993A (en) * | 2016-06-02 | 2016-08-24 | 铜陵兴茂农业专业合作社 | Composite sawdust-based biomass particles of waste cotton clothes and preparation method of particles |
| WO2018197756A1 (en) * | 2017-04-27 | 2018-11-01 | Infinited Fiber Company Oy | Treatment process for textile-based materials |
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Application publication date: 20150527 |