CN101245356A - Method for producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation - Google Patents
Method for producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation Download PDFInfo
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- CN101245356A CN101245356A CNA2008101029800A CN200810102980A CN101245356A CN 101245356 A CN101245356 A CN 101245356A CN A2008101029800 A CNA2008101029800 A CN A2008101029800A CN 200810102980 A CN200810102980 A CN 200810102980A CN 101245356 A CN101245356 A CN 101245356A
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- sweet potato
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- ipomoea batatas
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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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Abstract
The invention relates to a steam explosion sweet potato direct fermentation method for producing fuel ethanol; the main technique is that: sweet potato undergoes the steam explosion treatment for 2 to 4 minutes under a steam pressure of 0.5 to 0.8Mpa; the sweet potato after the steam explosion treatment is added with glucoamylase for saccharification, ammonium sulfate, potassium dihydrogen phosphate and activated yeast are added simultaneously for fermentation, and the ethanol generated by fermentation is distilled and collected. The invention adopts the steam explosion technology to carry out the short-time and low-pressure steam explosion pretreatment of the sweet potation with the pressure keeping time of 2 to 4 minutes and the pressure of 0.5 to 0.8 MPa, thus omitting the boiling process of starch raw materials of as long as 30 to 120 minutes and reducing the energy consumption for fermentation production of ethanol; a finished product ethanol is obtained by direct fermentation after the saccharification of the sweet potato which is processed by the steam explosion, the technique route is simple, the energy consumption is low, the production efficiency is high and the method is conductive to the high-value utilization of sweet potato.
Description
Technical field
The invention belongs to the field that utilizes of agricultural resource, particularly a kind of method of producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation.
Background technology
Along with oil price is surging, change existing energy structure, make new forms of energy become the alternative of clean and effective, become world's bright spot of investment based on petrochemical industry, coal, the wherein fast development of alcohol fuel is played increasing effect in alternative gasoline supply side.Estimate in following 10 years, global alcohol fuel year consumption will reach 16,000,000,000 to 18,000,000,000 gallons.At present, some countries such as the U.S., Canada, Brazil are numerous and confused by relevant regulations, require progressively to be increased in from now on the quantity of alcohol fuel in the gasoline.China has become the third-largest biofuel alcohol production state after Brazil, the U.S., and production capacity and range of application are all in continuous expansion.
The alcohol fuel fermentative production of current China is a raw material with food crop such as corn, paddy, wheats mainly, and what Tenth Five-Year Plan Period, China also built certain scale at northern area is the alcohol fuel pilot project of raw material with the corn.But China has a large population and a few land, cultivated land resource is in short supply, grain-production pressure is huge, single is that the alcohol fuel development space of raw material is subjected to great restriction with grain (mainly being corn and war preparedness grain in storage for years rice), be difficult to support for a long time the sustainable development of China's fuel ethanol industrial, this shows that China greatly develops alcohol fuel just must seek abundanter renewable resources---the Biological resources alcoholic acid raw materials for production that act as a fuel.National conditions of comprehensive China and Biological resources situation are considered and are analyzed, a feasible scheme is the area that is not suitable for planting the high yield food crop selectively at some, suit measures to local conditions, by development high yield, high starch, drought-enduring, impoverishment tolerant, for the starch-containing of grain or contain the sugar alcoholic acid raw materials for production that act as a fuel.As the Ipomoea batatas of extensively planting in China, per mu yield is big, starch content is high, be the raw material of very potential production alcohol fuel.
Being used for the starch materials of fermentative production of ethanol generally will carry out steps such as saccharification again through high temperature or low temperature boiling, gelatinization, liquefaction, just can carry out ethanol fermentation at last, and wherein the boiling energy consumption of raw material accounts for the 30-40% of alcohol production energy consumption.
The steam explosion treatment technology of the pulping wood aspect that development in recent years is got up (be called for short vapour quick-fried technology) is to use media such as the water vapor, air of certain pressure, the boiling regular hour, when decompression is spurted suddenly again, produce secondary steam, the volume surge, be subjected to the effect of mechanical force, with the structure deteriorate of solid materials.
Summary of the invention
The method that the purpose of this invention is to provide a kind of producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation, this method is applied to the Ipomoea batatas pre-treatment with the quick-fried technology of vapour, but adopt the Ipomoea batatas direct fermentation after the low-pressure steam explosion treatment to produce ethanol, having solved needs to consume that big energy is used for that Ipomoea batatas is pulverized and the boiling of starch, the problem of liquefaction before the sweet potato starch fermenting alcohol.
Technical scheme of the present invention is as follows:
The method of producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation provided by the invention, its technological process mainly is:
Ipomoea batatas steam explosion under the condition of vapor pressure 0.5～0.8MPa is handled 2～4min; Ipomoea batatas after vapour is quick-fried adds saccharifying enzyme, at 55～60 ℃ of insulation saccharification 20～60min; Material is cooled to 30～35 ℃ after the saccharification, ultraviolet sterilization 15～20min.Under aseptic condition, the yeast after adding ammonium sulfate, potassium primary phosphate and the activation, at 30～35 ℃ of condition bottom fermentation 48～60h, the ethanol that fermentation produces is collected in distillation.
The add-on of described saccharifying enzyme is: per 1 gram Ipomoea batatas adds the 120-200U saccharifying enzyme;
The add-on of described ammonium sulfate is: per 100 gram Ipomoea batatas add 0.1～0.15g ammonium sulfate;
The add-on of described potassium primary phosphate is: per 100 gram Ipomoea batatas add 0.1～0.2g potassium primary phosphate;
Described zymic add-on is; Per 100 gram Ipomoea batatas add 0.10～0.30g active dry yeast;
The present invention at the shortcoming of pre-treatment high energy consumptions such as the boiling of starchy material fermenting alcohol, liquefaction, adopts the steam explosion technology that Ipomoea batatas is carried out pre-treatment with the starchy material of Ipomoea batatas as fermentative production of ethanol, has following characteristics and advantage:
1, the present invention adopts the steam explosion technology of the short period of time of 2～4min that Ipomoea batatas is carried out pre-treatment, has saved the digestion process that reaches 30～120min of starchy material, has reduced the energy consumption of fermentative production of ethanol, shortens the cycle of producing.
2, the present invention adopts the steam explosion technology that Ipomoea batatas is carried out pre-treatment, and the hot mechanochemical treatment of steam explosion makes the cell wall rupture of plant tissue, and sweet potato starch gelatinization rate is improved, and helps the carrying out of saccharifying.
3, the present invention Ipomoea batatas that steam explosion is handled carries out direct fermentation after the saccharification, do not need to add in addition water, make that moisture content reduces greatly in the karusen, in improving karusen in the ethanol content, reduced the distillatory energy consumption, and reduced the treating processes of follow-up waste water, the second stage employ for fermentation residue when reducing production costs provides condition, helps the comprehensive utilization of Ipomoea batatas.
Embodiment
Below by embodiment technical scheme of the present invention is described further.
Embodiment 1: get Ipomoea batatas 500g, be cut into segment, drop in the steam-explosion jar, handled 2.5 minutes under vapor pressure 0.5MPa; In the material after processing, disclose that according to every gram vapour the ratio that adds the 100U saccharifying enzyme adds saccharifying enzyme, behind 60 ℃ of water bath heat preservation saccharification 40min, be cooled to 30 ℃, ultraviolet sterilization 20min.Under aseptic condition, add yeast after 0.1% ammonium sulfate, 0.1% potassium primary phosphate and 0.10% activation, afterwards at 30 ℃ of condition bottom fermentation 60h, ethanol is collected in distillation, and alcoholic strength is 8.89%.
Embodiment 2: get Ipomoea batatas 500g, be cut into segment, drop in the steam-explosion jar, handled 2.5 minutes under vapor pressure 0.6MPa; In the material after processing, disclose that according to every gram vapour the ratio that adds the 120U saccharifying enzyme adds saccharifying enzyme, behind 55 ℃ of water bath heat preservation saccharification 60min, be cooled to 32 ℃, ultraviolet sterilization 15min.Under aseptic condition, add yeast after 0.15% ammonium sulfate, 0.1% potassium primary phosphate and 0.25% activation, afterwards at 32 ℃ of condition bottom fermentation 54h, ethanol is collected in distillation, and alcoholic strength is 9.27%.
Embodiment 3: get Ipomoea batatas 500g, be cut into segment, drop in the steam-explosion jar, handled 2.5 minutes under vapor pressure 0.7MPa; In the material after processing, disclose that according to every gram vapour the ratio that adds the 150U saccharifying enzyme adds saccharifying enzyme, behind 58 ℃ of water bath heat preservation saccharification 40min, be cooled to 35 ℃, ultraviolet sterilization 18min.Under aseptic condition, add yeast after 0.15% ammonium sulfate, 0.15% potassium primary phosphate and 6.0% activation, afterwards at 35 ℃ of condition bottom fermentation 48h, distillation is collected ethanol distillation and is collected ethanol, and alcoholic strength is 12.47%.
Embodiment 4: get Ipomoea batatas 500g, be cut into segment, drop in the steam-explosion jar, handled 2.5 minutes under vapor pressure 0.8MPa; In the material after processing, disclose that according to every gram vapour the ratio that adds the 150U saccharifying enzyme adds saccharifying enzyme, behind 60 ℃ of water bath heat preservation saccharification 50min, be cooled to about 34 ℃ ultraviolet sterilization 20min.Under aseptic condition, add yeast after 0.15% ammonium sulfate, 0.15% potassium primary phosphate and 0.25% activation, afterwards at 34 ℃ of condition bottom fermentation 60h, distillation is collected ethanol distillation and is collected ethanol, and alcoholic strength is 10.84%.
Embodiment 5: get Ipomoea batatas 500g, be cut into segment, drop in the steam-explosion jar, handled 3.0 minutes under vapor pressure 0.7MPa; In the material after processing, disclose that according to every gram vapour the ratio that adds the 120U saccharifying enzyme adds saccharifying enzyme, behind 57 ℃ of water bath heat preservation saccharification 30min, be cooled to 35 ℃, ultraviolet sterilization 15min.Under aseptic condition, add yeast after 0.1% ammonium sulfate, 0.1% potassium primary phosphate and 0.20% activation, afterwards at 35 ℃ of condition bottom fermentation 60h, distillation is collected ethanol distillation and is collected ethanol, and alcoholic strength is 12.08%
Embodiment 6: get Ipomoea batatas 500g, be cut into segment, drop in the steam-explosion jar, handled 4.0 minutes under vapor pressure 0.7MPa; In the material after processing, disclose that according to every gram vapour the ratio that adds the 120U saccharifying enzyme adds saccharifying enzyme, behind 58 ℃ of water bath heat preservation saccharification 20min, be cooled to 35 ℃, ultraviolet sterilization 18min.Under aseptic condition, add yeast after 0.15% ammonium sulfate, 0.1% potassium primary phosphate and 0.15% activation, afterwards at 35 ℃ of condition bottom fermentation 60h, distillation is collected ethanol distillation and is collected ethanol, and alcoholic strength is 11.72%.
Claims (5)
1. the method for a producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation is characterized in that: be cut into segment after will Ipomoea batatas cleaning, and drop in the steam-explosion jar under the condition of vapor pressure 0.5～0.8MPa steam explosion and handle 2～4min; Ipomoea batatas after vapour is quick-fried adds saccharifying enzyme in the ratio that every gram vapour explosion sweet potato adds 120～200U, at 55～60 ℃ of insulation saccharification 20～60min; Material is cooled to 30～35 ℃ after the saccharification, ultraviolet sterilization 15～20min, and under aseptic condition, the yeast after adding ammonium sulfate, potassium primary phosphate and the activation, at 30～35 ℃ of condition bottom fermentation 48～60h, the ethanol that fermentation produces is collected in distillation.
2. method according to claim 1 is characterized in that it is that steam explosion is handled 2～4min under the condition of vapor pressure 0.5～0.8MP a that steam explosion is handled.
3. method according to claim 1, the add-on that it is characterized in that ammonium sulfate are that per 100 gram Ipomoea batatas add 0.1～0.15g ammonium sulfate.
4. method according to claim 1, the add-on that it is characterized in that potassium primary phosphate are that per 100 gram Ipomoea batatas add 0.1～0.2g potassium primary phosphate.
5. method according to claim 1 is characterized in that the zymic add-on is that per 100 gram Ipomoea batatas add 0.10～0.30g active dry yeast.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101029800A CN101245356B (en) | 2008-03-28 | 2008-03-28 | Method for producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation |
| CA2660415A CA2660415C (en) | 2008-03-28 | 2009-03-25 | Method for producing ethanol from steam exploded sweet potato by fermentation |
| US12/412,090 US20090246847A1 (en) | 2008-03-28 | 2009-03-26 | Method for producing ethanol from steam exploded sweet potato by fermentation |
| AU2009201220A AU2009201220B8 (en) | 2008-03-28 | 2009-03-27 | Method for producing ethanol from steam exploded sweet potato by fermentation |
| BRPI0900700-8A BRPI0900700A2 (en) | 2008-03-28 | 2009-03-27 | method for producing ethanol from steam-shattered sweet potatoes by fermentation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101029800A CN101245356B (en) | 2008-03-28 | 2008-03-28 | Method for producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation |
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| CN101245356A true CN101245356A (en) | 2008-08-20 |
| CN101245356B CN101245356B (en) | 2011-07-27 |
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| CN2008101029800A Expired - Fee Related CN101245356B (en) | 2008-03-28 | 2008-03-28 | Method for producing fuel ethyl alcohol with vapour explosion sweet potato direct fermentation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768606A (en) * | 2010-02-24 | 2010-07-07 | 中国科学院过程工程研究所 | Method for solid state fermentation of ethanol through steam explosion of cassava and comprehensive utilization of cassava |
| CN102002516A (en) * | 2010-11-09 | 2011-04-06 | 河南农业大学 | Novel method for producing ethanol through steam explosion of cereal starchy material |
| CN102161706A (en) * | 2011-03-01 | 2011-08-24 | 中国科学院过程工程研究所 | Comprehensive utilization method of Canna edulis Ker tuber |
| CN102181076A (en) * | 2011-02-28 | 2011-09-14 | 中国科学院过程工程研究所 | Method for cleanly preparing starch containing abundant flavones and comprehensively utilizing radix puerariae resource |
| CN102524706A (en) * | 2012-01-06 | 2012-07-04 | 中国科学院过程工程研究所 | Method for grinding to form powder by using steam-exposition assisted konjac wet method |
| CN104872743A (en) * | 2013-11-14 | 2015-09-02 | 江苏锦程食品有限公司 | Preparation method of tomato and onion soup seasoning |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216150C (en) * | 2002-04-12 | 2005-08-24 | 中国农业大学 | Method for producing alcohol by solid fermentation of stalks |
| US20070014905A1 (en) * | 2003-06-30 | 2007-01-18 | Purdue Research Foundation | Starchy material processed to produce one or more products comprising starch, ethanol, sugar syrup, oil, protein, fiber, gluten meal, and mixtures thereof |
| CN100342022C (en) * | 2005-12-20 | 2007-10-10 | 云南大学 | Method for improving alcohol yield fermented from starch material |
| CN1966696A (en) * | 2006-11-06 | 2007-05-23 | 三峡大学 | Method for manufacturing fuel alcohol by using sweet potato |
-
2008
- 2008-03-28 CN CN2008101029800A patent/CN101245356B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768606A (en) * | 2010-02-24 | 2010-07-07 | 中国科学院过程工程研究所 | Method for solid state fermentation of ethanol through steam explosion of cassava and comprehensive utilization of cassava |
| CN102002516A (en) * | 2010-11-09 | 2011-04-06 | 河南农业大学 | Novel method for producing ethanol through steam explosion of cereal starchy material |
| CN102181076A (en) * | 2011-02-28 | 2011-09-14 | 中国科学院过程工程研究所 | Method for cleanly preparing starch containing abundant flavones and comprehensively utilizing radix puerariae resource |
| CN102181076B (en) * | 2011-02-28 | 2013-03-27 | 中国科学院过程工程研究所 | Method for cleanly preparing starch containing abundant flavones and comprehensively utilizing radix puerariae resource |
| CN102161706A (en) * | 2011-03-01 | 2011-08-24 | 中国科学院过程工程研究所 | Comprehensive utilization method of Canna edulis Ker tuber |
| CN102161706B (en) * | 2011-03-01 | 2013-04-10 | 中国科学院过程工程研究所 | Comprehensive utilization method of Canna edulis Ker tuber |
| CN102524706A (en) * | 2012-01-06 | 2012-07-04 | 中国科学院过程工程研究所 | Method for grinding to form powder by using steam-exposition assisted konjac wet method |
| CN104872743A (en) * | 2013-11-14 | 2015-09-02 | 江苏锦程食品有限公司 | Preparation method of tomato and onion soup seasoning |
| CN104872742A (en) * | 2013-11-14 | 2015-09-02 | 江苏锦程食品有限公司 | Preparation method of tomato and onion soup seasoning |
| CN104872738A (en) * | 2013-11-14 | 2015-09-02 | 江苏锦程食品有限公司 | Tomato and onion soup seasoning |
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| CN101245356B (en) | 2011-07-27 |
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Granted publication date: 20110727 Termination date: 20140328 |