CN1327067A - Method for producing alcohol by using plant fiber as raw material - Google Patents
Method for producing alcohol by using plant fiber as raw material Download PDFInfo
- Publication number
- CN1327067A CN1327067A CN00107968A CN00107968A CN1327067A CN 1327067 A CN1327067 A CN 1327067A CN 00107968 A CN00107968 A CN 00107968A CN 00107968 A CN00107968 A CN 00107968A CN 1327067 A CN1327067 A CN 1327067A
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- Prior art keywords
- alcohol
- fermented liquid
- plant fiber
- fiber material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The alcohol producing process with plant fiber material includes the steps of crushing; hydrolysis by adding 0.5-1.5% concentration dilute sulfuric acid to prepare digest and wood fiber dregs; filtering of the digest and concentration into 5-10% concentration pentaose liquid; enzymolysis and fermentation of wood fiber dregs for 24 hr to prepare fermented liquid containing 2-5% alcohol; strain culture in Erlenmeyer flask on mechanical shaker at 30 deg.c and oxygen adding fermentatino in seed tank to obtain fermented liquid; fermententing culture of the fermented liquid and pentaose liquid mixture in fermentation tank to prepare fermented liquid; and three-tower distillation of the fermented liquid containing 2-5 % of alcohol to obtain alcohol. The process has less steps, low cost, high efficiency and no environmental pollution.
Description
The present invention relates to a kind of method of producing alcohol, particularly a kind of method of utilizing plant fiber material to produce alcohol.
Alcohol is a kind of important industrial raw material, and its purposes is very extensive, but its production is raw material mostly with grain, and production cost height, and complex process are restricting the development of alcohol industry.
Purpose of the present invention just is to utilize biotechnology, and a kind of method of utilizing plant fiber material to produce alcohol is provided.
The object of the present invention is achieved like this, it may further comprise the steps: after at first plant fiber material being pulverized, the dilute sulphuric acid that adds 0.5%-1.5% is hydrolyzed, and under 100 ℃ of-120 ℃ of temperature condition, high-temperature sterilization 3-4 hour, make hydrolyzed solution and wood fibre residue; Then hydrolyzed solution is filtered, remove SO
3Ion is condensed into the pentaglucose liquid of 5%-10%; The wood fibre residue after 24 hours, makes the fermented liquid that contains 2%-5% alcohol through enzymatic hydrolysis and fermentation; Bacterial classification is put into triangular flask after shaking table under 30 ℃ the temperature is cultivated, and the pentaglucose liquid with 5%-10% after access seeding tank oxygenation stirs and ferments enters 20M
3The fermentation cylinder for fermentation enzyme is cultivated, 100 rev/mins of stirring velocitys, 20 hours-30 hours time; At 20M
3In the fermentor tank, be that anaerobically fermenting made fermented liquid after 40-50 hours, will contain the fermented liquid of 2%-5% alcohol, can make alcohol by three column distillations under 4-5 the condition at 30 ℃-45 ℃ of temperature, pH value.Figure of description is seen in its technical process.
Purpose of the present invention can realize that also the oxygen-adding amount in the seeding tank is 0.5-2.5mg/L by following technical measures, and described plant fiber material is corncob cellulose, plant straw, xylose residue etc.
Compared to existing technology, it is simple that the present invention has complete processing, and production process is few, and production cost is low, production efficiency height, advantages such as non-environmental-pollution.
Accompanying drawing and drawing explanation
Accompanying drawing is a process flow sheet of the present invention
Below in conjunction with embodiment is that example describes the present invention in detail with the corncob cellulose, after at first corncob cellulose being pulverized the removal of impurities washing, the dilute sulphuric acid that adds 0.5%-1.5% is hydrolyzed, and under 100 ℃ of-120 ℃ of temperature condition, handled 3-4 hour, and made hydrolyzed solution and xylose residue (wood fibre residue); Then hydrolyzed solution is filtered, remove SO
4 2-Ion is made the pentaglucose liquid of 5%-10%; The wood fibre residue makes the fermented liquid that contains 2%-5% alcohol behind enzymatic hydrolysis and fermentation; Bacterial classification is put into triangular flask after shaking table under 30 ℃ the temperature is cultivated, and the pentaglucose liquid with 5%-10% after access seeding tank oxygenation stirs and ferments enters 20M
3The fermentation cylinder for fermentation enzyme is cultivated, 100 rev/mins of stirring velocitys, 20 hours-30 hours time; At 20M
3In the fermentor tank, be that anaerobically fermenting made fermented liquid after 40-50 hours, will contain the fermented liquid of 2%-5% alcohol, can make alcohol by three column distillations under 4-5 the condition at 30 ℃-45 ℃ of temperature, pH value.
Embodiment:
At first corncob cellulose is pulverized, under 120 ℃ temperature condition, added sulfuric acid (H
2SO
4) hydrolysis, its hydrolysis yield sees the following form.
The relation of hydrolysis yield as can be seen from the above table and time, sulfuric acid concentration determines to select for use 1.09% sulfuric acid, and hydrolysis made hydrolyzed solution in 3-4 hours.Then hydrolyzed solution is filtered, remove SO
3Ion is condensed into the pentaglucose liquid of 5%-10%; Bacterial classification is put into triangular flask after shaking table under 30 ℃ the temperature is cultivated, and the pentaglucose liquid with 5%-10% after access seeding tank oxygenation stirs and ferments enters 20M
3The fermentation cylinder for fermentation enzyme is cultivated, 100 rev/mins of stirring velocitys, 20 hours-30 hours time; Make fermented liquid, dissolved oxygen sees the following form to the influence of pentose fermentation:
Dissolved oxygen and spirit yield have bigger relation as can be seen from the above table, be advisable with 1.0mg/L so determine dissolved oxygen, make spirit yield can reach 90-92%, the utilization ratio of sugar reaches 92-95%, xylose residue after 24 hours, makes the fermented liquid that contains 2%-5% alcohol through enzymatic hydrolysis and fermentation; The fermented liquid that will contain 2%-5% alcohol then enters three towers and distills and both make alcohol, realizes the present invention.The present invention utilizes corncob cellulose to replace grain-production alcohol, and raw materials cost can reduce by 60%, and worker's technology is simple, and production process is few, and production cost is low, the production efficiency height, and non-environmental-pollution has tangible economy and social benefit.
| Dissolved oxygen mg/L | Fermentation time (h) | Sugar utilization ratio (%) | Spirit yield (%) |
| ????0.5 | ????96 | ????81 | ????76 |
| ????1.0 | ????72 | ????92 | ????90 |
| ????1.5 | ????72 | ????94 | ????88 |
| ????2.0 | ????50 | ????95 | ????75 |
Claims (3)
1. method of utilizing plant fiber material to produce alcohol may further comprise the steps:
A. after plant fiber material being pulverized, the dilute sulphuric acid that adds 0.5%-1.5% is hydrolyzed, and under 100 ℃ of-120 ℃ of temperature condition, high-temperature sterilization 3-4 hour, makes hydrolyzed solution and wood fibre residue;
B. then hydrolyzed solution is filtered, remove SO
3Ion is condensed into the pentaglucose liquid of 5%-10%;
C. the wood fibre residue after 24 hours, makes the fermented liquid that contains 2%-5% alcohol through enzymatic hydrolysis and fermentation;
D. bacterial classification is put into triangular flask after shaking table under 30 ℃ the temperature is cultivated, and the pentaglucose liquid with 5%-10% after access seeding tank oxygenation stirs and ferments enters 20M
3The fermentation cylinder for fermentation enzyme is cultivated, 100 rev/mins of stirring velocitys, 20 hours-30 hours time;
E. at 20M
3In the fermentor tank, be that anaerobically fermenting made fermented liquid after 40-50 hours under 4-5 the condition at 30 ℃-45 ℃ of temperature, pH value;
F. the fermented liquid of 2%-5% alcohol will be contained, alcohol can be made by three column distillations;
2. according to the described method of utilizing plant fiber material to produce alcohol of claim 1, it is characterized in that: the oxygen-adding amount in the seeding tank is 0.5-2.5mg/L.
3. according to the described method of utilizing plant fiber material to produce alcohol of claim 1, it is characterized in that: described plant fiber material is corncob cellulose, plant straw, xylose residue etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00107968A CN1114695C (en) | 2000-06-02 | 2000-06-02 | Method for producing alcohol by using plant fiber as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00107968A CN1114695C (en) | 2000-06-02 | 2000-06-02 | Method for producing alcohol by using plant fiber as raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1327067A true CN1327067A (en) | 2001-12-19 |
| CN1114695C CN1114695C (en) | 2003-07-16 |
Family
ID=4579060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00107968A Expired - Fee Related CN1114695C (en) | 2000-06-02 | 2000-06-02 | Method for producing alcohol by using plant fiber as raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1114695C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944658B (en) * | 2006-06-09 | 2010-07-14 | 山东大学 | Method for producing cellulose alcohol using corncob processing leftover by fermenting |
| CN101298620B (en) * | 2007-05-10 | 2011-04-20 | 河南科技大学 | Method for preparing ethanol by one-step fermentation after ion liquid stage treatments from native cellulose material |
| CN101517062B (en) * | 2006-07-24 | 2012-08-29 | 科拉出口S.R.O.公司 | Equipment for the discontinuous or continuous hydrolysis of organic matter |
| CN104004669A (en) * | 2014-04-24 | 2014-08-27 | 北京化工大学 | Method for preparing ethanol through fermenting corn cob residue enzymatic hydrolysate by self-flocculating yeast |
-
2000
- 2000-06-02 CN CN00107968A patent/CN1114695C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944658B (en) * | 2006-06-09 | 2010-07-14 | 山东大学 | Method for producing cellulose alcohol using corncob processing leftover by fermenting |
| CN101517062B (en) * | 2006-07-24 | 2012-08-29 | 科拉出口S.R.O.公司 | Equipment for the discontinuous or continuous hydrolysis of organic matter |
| CN101298620B (en) * | 2007-05-10 | 2011-04-20 | 河南科技大学 | Method for preparing ethanol by one-step fermentation after ion liquid stage treatments from native cellulose material |
| CN104004669A (en) * | 2014-04-24 | 2014-08-27 | 北京化工大学 | Method for preparing ethanol through fermenting corn cob residue enzymatic hydrolysate by self-flocculating yeast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1114695C (en) | 2003-07-16 |
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