CN102653776A - Method for preparing ethanol via waste - Google Patents
Method for preparing ethanol via waste Download PDFInfo
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- CN102653776A CN102653776A CN201210021845XA CN201210021845A CN102653776A CN 102653776 A CN102653776 A CN 102653776A CN 201210021845X A CN201210021845X A CN 201210021845XA CN 201210021845 A CN201210021845 A CN 201210021845A CN 102653776 A CN102653776 A CN 102653776A
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- fermentation
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- temperature heat
- waste
- simultaneous saccharification
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/59—Biological synthesis; Biological purification
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- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for preparing ethanol via waste. The method can inhibit harmful influence brought by mixed bacteria when paper pulp extracted from general waste is sued to perform simultaneous saccharification and fermentation reaction. The method for preparing ethanol via general waste is characterized in that, paper in the waste comprising waste paper is as a paper pulp material to be recovered, low temperature heat treatment of more than 60 DEG C and less than 100 DEG C is performed upon the paper pulp raw material, the temperature of the product through the low temperature heat treatment is reduced into a temperature range suitable for growth of fermented microorganisms for fermentation, wherein the temperature range is 40-50 DEG C, then, an enzyme and the fermented microorganisms simultaneously act upon the product through the low temperature heat treatment to perform simultaneous saccharification and fermentation reaction, thereby preparing ethanol, in the method, an antibiotic is added in the simultaneous saccharification and fermentation reaction.
Description
Technical field
The present invention relates to a kind of the reaction and prepare the alcoholic acid method by the stationery in the waste through simultaneous saccharification and fermentation.
Background technology
According to Japanese Department of the Environment statistics, in recent years,, calculate by weight half the approximately be paper, dry goods by the general waste of burning disposal, wherein major part is a stationery.These stationeries are not handled via general recycling approach as the stationery that is not suitable for recycling, but are wherein also mixing the paper that a part is just thrown away without recycling.As the stationery that is not suitable for recycling, comprise that contaminated paper, assorted paper or other are with the paper of processing such as plastics etc.
Existing research is pointed out, extracts these stationeries and utilizes (patent documentation 1) as biomass resource, and work out and be made into pulpous state and reclaim.
Stationery mainly is that origin comes from the plain formation of fibre of plant, is a kind of of biomass therefore.The difference of itself and other biological matter is handled in the papermaking operation, carrying out delignification, and the purity of cellulose components is than higher, therefore, we can say that compare its processing with other biological matter easier when carrying out saccharification with enzyme and handle.
In addition; Be in the feedstock production alcoholic acid method to contain many cellulosic biomass; When selecting to comprise when carrying out the method for saccharification with enzyme; Can think that it is useful reacting through the simultaneous saccharification and fermentation method, said simultaneous saccharification and fermentation can inhibitory enzyme the influence that causes of the competitive inhibition that resultant produced of reaction.Said method is in a reactive tank, carries out the enzymatic saccharification of raw material simultaneously and is used as the anabolism (generation ethanol) of fermentation with the sugar of the initiations such as yeast of mikrobe.At present, because of the cost of saccharifying enzyme is high, therefore in order to react with still less enzyme dosage, the simultaneous saccharification and fermentation method is useful, but in order to carry out enzymatic saccharification effectively, reaction needed is carried out several days time.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2002-159953 communique.
Summary of the invention
At this, be raw material with the paper pulp that from general waste, extracts, when making its simultaneous saccharification and fermentation prepare ethanol, in several days reaction, may produce assorted bacterium influence.
Using other treatment processs, for example with hydrolysis under the pressurized, heated, when making liquid glucose,, therefore in follow-up fermentation, be difficult to exert an influence because of the bacterium of mixing owing to passed through the state that the utmost point is inappropriate for assorted bacterium existence with acid hydrolysis such as sulfuric acid or method that both carry out simultaneously.And be raw material when fermenting with the liquid glucose, be several hours dead time, the longest also with regard to tens hours; Even therefore there is assorted bacterium; When considering the rate of propagation of other mikrobes at the same time, its influence that causes also because of and used fermentation with the quantity relative ratio relationship between mikrobe, influenced hardly.
On the other hand; When stationery transports simultaneously with general waste and contacts with the Other Waste class; There have been many assorted bacterium during with this stationery of pulp recovery; And simultaneous saccharification and fermentation need react several days, and the existence of assorted bacterium will make a big impact, and therefore need seek a kind of method that suppresses assorted bacterium in order to use this feedstock production ethanol.
The present invention considers above-mentioned situation and accomplishes; Its objective is that providing a kind of prepares the alcoholic acid method by general waste; When using the paper pulp that from general waste, extracts to carry out the simultaneous saccharification and fermentation reaction, this method can suppress the detrimentally affect that assorted cingula is come.
In order to solve the problems of the technologies described above; The inventor furthers investigate repeatedly; Result's discovery is carried out low-temperature heat treatment to the raw material that contains paper pulp, and when simultaneous saccharification and fermentation reacts, uses microbiotic, can obtain and not have assorted bacterium to have identical alcohol production efficient down.
That is, of the present inventionly prepare the alcoholic acid method by waste, it reclaims as pulpwood with the stationery in the waste that contains waste paper; Apply more than 60 ℃ and the low-temperature heat treatment of 100 ℃ of less thaies to this pulpwood, this low-temperature heat treatment product is cooled to is fit to the TR that the used organism of fermentation of fermentation can be grown, then; Simultaneous saccharification and fermentation makes enzyme and fermentation have an effect to this low-temperature heat treatment product simultaneously with mikrobe; Carry out the simultaneous saccharification and fermentation reaction, thus preparation ethanol, in the method; When carrying out the simultaneous saccharification and fermentation reaction, add microbiotic.
At this, in the waste,, can be divided into general waste and trade waste as the object of offal treatment method, as general waste can give an example the household garbage of discharging from general family, the office rubbish of discharging from office building etc. etc.
Stationery is meant paper contained in the waste; Paper pulp be meant water to the stationery in these wastes dissociate (slurrying) handle to make after the dissociation solution dissociation solution carried out the product that obtains after the physics processed; The all applicable treatment process of the present invention of the paper mill sludge that produces in the waste paper of recycling or the papermaking operation; Therefore get final product no particular determination so long as derive from the raw material of paper.
Can carry out more than 100 ℃ of steam sterilizing with respect to general sterilising treatment, so-called low-temperature heat treatment is the thermal treatment that comes under the low temperature, is more than 60 ℃ in the present invention and 100 ℃ of less thaies, and preferred more than 70 ℃.
From waste, extracting paper as in a series of treatment process of raw material; Can as the slurrying of master operation the time, carry out this low-temperature heat treatment; Perhaps; Also can carry out this low-temperature heat treatment to the paper pulp after the slurries after the slurrying, the dehydration, and, also can heat-treat through its a plurality of operations.
The best homogeneous of heat distribution in the thermal treatment for this reason can be with mechanical stirring.
Heat treatment period is preferably and arrives after the afore mentioned rules temperature more than two hours, further is preferably more than 4 hours.On the other hand,, consider, preferably carry out the collection of general waste every day from the problem of its processing efficiency though depend on facility.As long as produce effect, the upper limit in the treatment time of the low-temperature heat treatment among the present invention is unqualified, but considers according to above-mentioned situation, is preferably in 24 hours.
Employed microbiotic was for generally can be described as the material of antibiotics when the slurries after the use low-temperature heat treatment carried out the simultaneous saccharification and fermentation reaction.Microbiotic is preferably the material of broad-spectrum antimicrobial, is preferably the low material of effective concentration in addition, and is preferably the material that can reduce production costs and prepare, but does not have particular determination.
As above-mentioned microbiotic, at least a as in NSC-3053, Azythromycin, aspoxicillin, B fungizone, HBK, Ampicillin Trihydrate, Oxacyclotetradecane,erythromycin deriv, Oxazacillin, oxytetracycline, kantlex, Gepcillin, clindamycin, paraxin, Uromycin, qingfengmeisu qiong, seromycin, Vibriomycin, Streptomycin sulphate, spectinomycin (spectinomycin), cynnematin, cefoxitin, Cephaloridine, cefquinome, tylosin, tsiklomitsin, nystatin, Xin Meisu, Virginiamycin (virginiamycin), Totomycin, bacitracin, paromycin, vancomyein, tetracycline, blasticidin, bleomycin, penicillium mould, polymyxin, MTC, Mycophenolic Acid, X-1497, lincomycin and these antibiotic verivates and the salt of can giving an example.
Said microbiotic is kept the necessary biological respinses of vital movement such as microorganism growth, propagation and is brought into play activity through obstruction.As everyone knows, its activity is brought into play germicidal action usually under high density, and lower concentration is the performance bacteriostatic action down, but in order to obtain effect of the present invention, seeks in the scope that reaction does not make a very bad impression to simultaneous saccharification and fermentation, to bring into play bacteriostatic action.According to antibiotic difference, though, also consider the microbiotic self-decomposition, so the preferred antibiotics addition is more than the 2ppm of simultaneous saccharification and fermentation reactant weight even also have abundant active microbiotic below having 1ppm.In addition, so long as the concentration of performance bacteriostatic action, preferably add this microbiotic during the simultaneous saccharification and fermentation reaction beginning before the absolute value number that is considered to approach because of low-temperature heat treatment zero assorted bacterium increases because of propagation.
Through the present invention, can suppress the assorted bacterium influence that reaction causes to simultaneous saccharification and fermentation that the stationery rubbish in the general waste produces because of the rubbish beyond the contact stationery rubbish.Its result, the yield in the time of can improving the stationery that exists in the general waste that can only be burned and be used for the simultaneous saccharification and fermentation reaction raw materials is realized stopping reaction.Through improving yield, can improve final alcohol concn, not only reduce the required energy cost of distillation, can also reduce the shared ratio of equipment cost.Its result, can realize can be with the starting material of this organic resource of the numerous stationeries that exist in the general waste as biofuel.
Description of drawings
Fig. 1 is the comparison diagram of alcohol production efficient during low-temperature heat treatment and autoclaving are handled among the embodiment 1.
Fig. 2 is the alcohol concn synoptic diagram when the simultaneous saccharification and fermentation reaction finishes among the embodiment 2.
Fig. 3 suppresses the effect synoptic diagram with the antibiotic concentration of the embodiment 3 of optical density(OD) registering instrument (Off オ ト レ コ one ダ one) record and assorted bacterium.
Fig. 4 suppresses the effect synoptic diagram with the antibiotic concentration of the embodiment 4 of optical density(OD) registering instrument record and assorted bacterium.
Embodiment
Below, through embodiment and accompanying drawing further explain the present invention.
The manual stationery of from waste, selecting carries out slurrying to it and handles, and uses screw press that the slurrying slurries that passed through the 5mm sieve are dewatered, preparation stationery rubbish slurry.The water ratio of paper pulp is about 60%.The paper pulp that obtains is used for following examples 1 and embodiment 2, and the pulping water during with slurrying is used for following examples 3 and embodiment 4.
(embodiment 1)
Pulping water when in paper pulp, adding slurrying is adjusted to 5% with concentration of slurry, makes three samples, under 60 ℃, 80 ℃, 92 ℃, carries out thermal treatment in 6 hours.
After the thermal treatment, the extruded paper slurries are adjusted into 15% with concentration in clean bench, use this paper pulp to carry out simultaneous saccharification and fermentation and handle.Cellulase ア Network セ Le レ one ス (trade(brand)name) that the enzyme that saccharification is used is produced for outstanding ability company of section (ジ エ ネ Application コ ア), fermentation uses mikrobe to be yeast saccharomyces cerevisiae.Adding to 5ppm, stirs the back in 40 ℃, 150rpm concussion cultivation down as antibiotic paraxin when the simultaneous saccharification and fermentation reaction begins.
As another control group, raw material is carried out carrying out the simultaneous saccharification and fermentation reaction under the same conditions after autoclaving is handled.
Its result is as shown in Figure 1.
React the alcohol concn that generated in the 5th day for simultaneous saccharification and fermentation, the sample solution concentration after thermal treatment under 60 ℃ of conditions is low slightly, but still can confirm almost can obtain the alcohol concn of equal extent.In above-mentioned low-temperature heat treatment, can access not less than the alcohol concn after the autoclaving processing.
(embodiment 2)
Subzero treatment shown in the further The effect embodiment 1 and the relation between the treatment time.
Make pulping raw material and be adjusted to approximately 60% by waste, use pulping water that this pulping raw material is adjusted into 20% slurries, make 4 groups of samples, carry out following processing separately: 60 ℃ 2 hours, 60 ℃ 4 hours, 70 ℃ 2 hours, 70 ℃ 4 hours.
Above-mentioned four groups of samples are divided into two groups respectively; To wherein one group add microbiotic (paraxin) to 5ppm; Another group does not add microbiotic, and the kind of other enzymes, the quantity of enzyme, yeast specie, yeast quantity, temperature, stirring are all carried out the simultaneous saccharification and fermentation reaction under the condition identical with embodiment 1.
As control group, make respectively and raw material is carried out autoclaving handle (positive control) group, do not heat-treat (negative control) group fully, do not heat-treat and only add microbiotic (only medicament) group and carry out the simultaneous saccharification and fermentation reaction.
Reaction is carried out finishing after 5 days.Alcohol concn and each reaction conditions are as shown in table 1 during end, and final alcohol concn is processed chart, and is as shown in Figure 2.
When heat-treating and do not add microbiotic, final alcohol concn is 1.4%, and visible output obviously descends.Under other conditions, heat-treat simultaneously and when adding microbiotic, can obtain and sterilization (autoclaving processing) identical alcohol concn fully.
Simultaneous saccharification and fermentation reaction conditions and the result of table 1 embodiment 2
(embodiment 3)
In the conventional yeast culture of 5ml in the used YPD substratum (glucose concn 5%); Pulping water when adding 0.1ml slurrying; Add 2～5ppm microbiotic paraxin, be heated to and use microstructure optical density(OD) registering instrument (ADVANTEC produces BIO-PHOTORECORDER TVS62CA) to investigate assorted bacterium propagation situation after 65 ℃ through the absorption of OD=600.Employed when pulping water is preparation paper pulp, its composition is identical with the assorted bacterium in being present in paper pulp.Observe cultivation results, can know the generation that when 2ppm is above, can suppress mikrobe.
(embodiment 4)
Identical with embodiment 3; In 5ml YPD substratum (glucose concn 5%); Pulping water when adding 0.1ml slurrying; Add 5ppm as antibiotic Ampicillin Trihydrate, paraxin, Streptomycin sulphate, be heated to and use microstructure optical density(OD) registering instrument to investigate assorted bacterium propagation situation after 50 ℃ through the absorption of OD=600.As a result, can confirm to suppress microbial growth.
Claims (7)
1. prepare the alcoholic acid method by waste, it is characterized in that, said method is that pulpwood reclaims with the stationery in the waste that contains waste paper; Apply more than 60 ℃ and the low-temperature heat treatment of 100 ℃ of less thaies to this pulpwood, this low-temperature heat treatment product is cooled to is fit to the TR that the used organism of fermentation of fermentation can be grown, said TR is 40～50 ℃; Then; Enzyme and fermentation are had an effect to this low-temperature heat treatment product with mikrobe simultaneously, carry out the simultaneous saccharification and fermentation reaction, thus preparation ethanol; In the method, when carrying out the simultaneous saccharification and fermentation reaction, add microbiotic.
2. method according to claim 1 is characterized in that, the temperature of said low-temperature heat treatment is more than 70 ℃.
3. method according to claim 1 and 2 is characterized in that, carries out 2 hours the above low-temperature heat treatment.
4. method according to claim 3 is characterized in that, carries out 4 hours the above low-temperature heat treatment.
5. according to each described method of claim 1～4; It is characterized in that said microbiotic is for being selected from NSC-3053, Azythromycin, aspoxicillin, B fungizone, HBK, Ampicillin Trihydrate, Oxacyclotetradecane,erythromycin deriv, Oxazacillin, oxytetracycline, kantlex, Gepcillin, clindamycin, paraxin, Uromycin, qingfengmeisu qiong, seromycin, Vibriomycin, Streptomycin sulphate, spectinomycin, cynnematin, cefoxitin, Cephaloridine, cefquinome, tylosin, tsiklomitsin, nystatin, Xin Meisu, Virginiamycin, Totomycin, bacitracin, paromycin, vancomyein, tetracycline, blasticidin, bleomycin, penicillium mould, polymyxin, MTC, Mycophenolic Acid, X-1497, lincomycin and these antibiotic verivates and the salt one or more.
6. according to each described method of claim 1～5, it is characterized in that,, add said microbiotic to more than the 2ppm with respect to the gross weight of simultaneous saccharification and fermentation reactant.
7. according to each described method of claim 1～6, it is characterized in that, when simultaneous saccharification and fermentation reaction beginning, add said microbiotic.
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| JP2011045126A JP5867911B2 (en) | 2011-03-02 | 2011-03-02 | Method for producing ethanol from waste |
| JP2011-045126 | 2011-03-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099387A (en) * | 2014-07-17 | 2014-10-15 | 浙江华康药业股份有限公司 | Saccharification technology for preparing starch sugar |
| CN109879996A (en) * | 2019-03-21 | 2019-06-14 | 广西中连智浩科技有限公司 | A method of polyvinyl alcohol is prepared using bagasse |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6004321B2 (en) * | 2012-04-18 | 2016-10-05 | 日立造船株式会社 | Methods for controlling the growth of miscellaneous bacteria in ethanol fermentation of moss |
| CN115889420A (en) * | 2022-12-23 | 2023-04-04 | 青岛农业大学 | Method for removing mycophenolic acid from alkaline mycophenolic acid residues |
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| WO2005100582A2 (en) * | 2004-03-25 | 2005-10-27 | Novozymes Inc. | Methods for degrading or converting plant cell wall polysaccharides |
| CN101358213A (en) * | 2008-09-09 | 2009-02-04 | 华南理工大学 | Method for producing energy ethanol by fermentation of waste paper pulp |
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| JP3896606B2 (en) * | 1996-05-31 | 2007-03-22 | 味の素株式会社 | Production method of yeast extract |
| JP2006504394A (en) * | 2002-02-08 | 2006-02-09 | ジェネンコー・インターナショナル・インク | Method for producing a final product from a carbon substrate |
| WO2003066826A2 (en) * | 2002-02-08 | 2003-08-14 | Genencor International, Inc. | Methods for producing ethanol from carbon substrates |
| JP5118626B2 (en) * | 2005-04-12 | 2013-01-16 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Biomass processing to obtain fermentable sugar |
| PL2191004T3 (en) * | 2007-08-23 | 2013-11-29 | Stichting Dienst Landbouwkundig Onderzoek | Mild alkaline pretreatment and simultaneous saccharification and fermentation of lignocellulosic biomass into organic acids |
| JP2010110230A (en) * | 2008-11-04 | 2010-05-20 | Chubu Electric Power Co Inc | Saccharification treatment method for herb biomass |
| BR122017014725B1 (en) * | 2009-02-11 | 2019-04-24 | Xyleco, Inc. | METHOD FOR PRODUCING SUGARS FROM LIGNOCELLULOSTIC RAW MATERIAL |
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| WO2005100582A2 (en) * | 2004-03-25 | 2005-10-27 | Novozymes Inc. | Methods for degrading or converting plant cell wall polysaccharides |
| CN101358213A (en) * | 2008-09-09 | 2009-02-04 | 华南理工大学 | Method for producing energy ethanol by fermentation of waste paper pulp |
Non-Patent Citations (1)
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| 牟发章: "用废纸和废纸板生产燃料乙醇", 《造纸信息》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099387A (en) * | 2014-07-17 | 2014-10-15 | 浙江华康药业股份有限公司 | Saccharification technology for preparing starch sugar |
| CN109879996A (en) * | 2019-03-21 | 2019-06-14 | 广西中连智浩科技有限公司 | A method of polyvinyl alcohol is prepared using bagasse |
| CN109879996B (en) * | 2019-03-21 | 2021-11-05 | 广西中连智浩科技有限公司 | Method for preparing polyvinyl alcohol from bagasse |
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| JP2012179021A (en) | 2012-09-20 |
| JP5867911B2 (en) | 2016-02-24 |
| CN102653776B (en) | 2015-11-25 |
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