CN104561131A - Method for preparing industrial alcohol from urban solid waste - Google Patents
Method for preparing industrial alcohol from urban solid waste Download PDFInfo
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- CN104561131A CN104561131A CN201510044055.7A CN201510044055A CN104561131A CN 104561131 A CN104561131 A CN 104561131A CN 201510044055 A CN201510044055 A CN 201510044055A CN 104561131 A CN104561131 A CN 104561131A
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- China
- Prior art keywords
- solid waste
- industrial alcohol
- raw material
- city
- fermentation
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
-
- 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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- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Processing Of Solid Wastes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention discloses a method for preparing industrial alcohol from urban solid waste. The method comprises the following steps: 1) pretreating the urban solid waste raw material; 2) carrying out primary anaerobic fermentation on the pretreated urban solid waste raw material by using a single mixed bacterial strain to obtain a liquor, wherein the fermentation temperature is 20-70 DEG C, and the pH value of fermentation is 3.0-5.5; 3) filtering the liquor obtained in the step 2) to obtain a liquid phase and a solid phase, and carrying out gasification treatment on the solid phase; 4) carrying out secondary anaerobic fermentation on the liquid phase obtained in the step 3) and gas obtained by gasification treatment; and 5) carrying out distillation, treatment and rectification on the material phase obtained by anaerobic fermentation in the step 4) to obtain the industrial alcohol. By using the urban solid waste as the raw material, the biological substance raw materials in the urban solid waste are utilized to prepare the alcohol; the method can effectively control the discharge of carbon dioxide and lower the generated greenhouse gas; the obtained product has stable quality; and the method is suitable for industrial production.
Description
Technical field
The invention provides a kind of method utilizing city solid waste to prepare industrial alcohol.
Background technology
As far back as 19 th century later, the product of anaerobic digestion is used to produce biogas, for street lighting.By anaerobically fermenting or the digestion of bacterial biological substance, be known the gas that can produce various use.Current anaerobically fermenting is regarded as both reducing the organic amount being sent to refuse landfill always, can be used for again preparing useful chemical substance, as alcohols, acids etc.
In prior art, United States Patent (USP) 5753474 describes a kind of continuous print two benches anaerobic ferment process, two kinds of different bacterial isolateses are used to prepare butanols, by the vaporizing system of raw material for carbon monoxide and hydrogen, thus for producing the anaerobic ferment process of alcohol from biomass starting material, next step alcohols that anaerobic bacterial fermentation Formed atomicity can be used to be greater than 2.Find the example of suitable carbon monoxide zymotechnique, as United States Patent (USP) 2003/0211585 and 2007/0275447, and also description is had in USDOE contract number DEAC22-92PC92118, see " demonstration of producing bio-ethanol from coal synthetic gas laboratory scale " (specialist paper 5, November nineteen ninety-five).
Some known bacteriums are in such technique, and these bacteriums can prepare ethanol from oxycarbide and hydrogen, to the selectivity of ethanol, by selecting bacterial classification and control reaction conditions to control, can in general keep the function of bacterium, compared with competing product, be conducive to preparing ethanol, acetic acid.The specific examples of bacterial classification and technique can be shown in United States Patent (USP) 2003/0211585 and 2007/0275447.But according to the industrial alcohol unstable product quality that above-mentioned technique obtains, purity fluctuation is larger.
Summary of the invention
For solving above-mentioned Problems existing, the object of the present invention is to provide a kind of method utilizing city solid waste to prepare industrial alcohol, with city solid waste for raw material effectively controls the discharge of carbonic acid gas, and the greenhouse gases of generation can be reduced.
For achieving the above object, technical conceive of the present invention is such:
The present invention is with city solid waste for raw material, and through the process of fermenting, gasify, ferment, gentle, high-level efficiency prepares ethanol.
Particularly, the method utilizing city solid waste to prepare industrial alcohol provided by the invention, comprises the steps:
1) pre-treatment is carried out to city solid waste raw material;
2) use single mixt bacteria bacterial strain, carry out first time anaerobically fermenting process, leavening temperature 20 ~ 70 DEG C to pretreated city solid waste raw material, fermentation pH value is 3.0 ~ 5.5, obtains feed liquid;
3) filtration step 2) gained feed liquid, obtain liquid phase and solid phase, solid phase carries out gasification process;
4) by step 3) liquid phase that obtains and carry out the process of second time anaerobically fermenting through the gas of gasification process gained;
5) step 4) gained material prepares industrial alcohol through distillation, process, rectifying after anaerobically fermenting.
Separately, the described biodegradable moieties that city solid waste raw material includes but not limited to city solid phase waste, lignocellulose biomass, percolate, city has stable political situation in trade effluent, biological sludge, energy crop and agricultural residue.
Separately have, described pretreatment process includes but not limited to chopping, grinding, ultrasonic and hydraulic pressure pulverizing.
Again, described step 2) in leavening temperature be 40 ~ 60 DEG C.
Further, step 2) and step 4) described in anaerobically fermenting respectively induction bed bioreactor in carry out.
And, described step 2) in anaerobic fermentation process, add nitrogenous, phosphorus, magnesium, sodium, manganese, calcium and cobalt mixture of nutrients.
Wherein, step 3) described in gasification process can select patent WO2007/143673, the gasifying process described in WO2007/131241 and US 6817388 embodiment.And, gasified raw material used in the present invention be enter altogether raw material (enter altogether raw material refer to add raw material, as plastic waste, coal etc.) be transported to step 3) as described in gasification process technique in; The methane formed in first time anaerobically fermenting, all can be recycled in gasifying process, and refuse landfill gas can the unprocessed gasifying process that can be transported to.
Described step 4) in second time anaerobically fermenting bacterium include but not limited to that the bacterium described in US2003/0211585 and US2007/0275447 is C-I and C-C.
Reaction equation of the present invention can be expressed as:
First time anaerobically fermenting: C
6h
12o
6→ CH
3cOOH
Gasification process step: C
6h
12o
6→ CO+CO
2+ H
2
Second time anaerobically fermenting: 3CH
3cOOH+H
2→ 3C
2h
5oH+3H
2o,
6CO+3H
2O→C
2H
5OH+4H
2O，
2CO
2+6H
2→C
2H
5OH+3H
2O。
The present invention's beneficial effect compared with prior art:
The present invention for raw material, through fermentation, gasification, again fermenting process, prepares ethanol with city solid waste.The present invention prepares the discharge that effectively can control carbonic acid gas in ethanol process utilizing the biomass starting material in the solid waste of city, and the greenhouse gases of generation can be reduced, utilize city solid waste to prepare obtained industrial alcohol constant product quality, high purity 99%, is suitable for suitability for industrialized production.
Embodiment
Below by specific embodiment, the present invention is described further, but embodiment does not limit the scope of the invention.
Embodiment 1
With municipal solid wastes as city solid waste raw material, physics chopping is placed in induction bed bioreactor carries out first time anaerobically fermenting, and fermentation uses mixt bacteria bacterial strain, and leavening temperature is 40 DEG C, and fermentation pH value is 3.5; Filter after fermentation, liquid is for subsequent use, and solid enters gasification tank and carries out gasifying process; The gas that fermented liquid and gasification tank produce is placed in induction bed bioreactor and carries out second time anaerobically fermenting, fermenting bacteria selects the C-I described in patent US2003/0211585 and US2007/0275447; Filter after fermentation ends, filtrate prepares through distillation, process, rectifying the dehydrated alcohol meeting industrial use.
Embodiment 2:
With lignocellulose biomass as city solid waste raw material, all the other are with embodiment 1.
Embodiment 3:
With agricultural residue as city solid waste raw material, all the other are with embodiment 1.
It should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of invention or equivalent replacement, and not depart from the scope of technical solution of the present invention, it all should be encompassed in right of the present invention.
Claims (6)
1. utilize city solid waste to prepare a method for industrial alcohol, it is characterized in that, comprise the steps:
1) pre-treatment is carried out to city solid waste raw material;
2) use single mixt bacteria bacterial strain, carry out first time anaerobically fermenting process, leavening temperature 20 ~ 70 DEG C to pretreated city solid waste raw material, fermentation pH value is 3.0 ~ 5.5, obtains feed liquid;
3) filtration step 2) gained feed liquid, obtain liquid phase and solid phase, solid phase carries out gasification process;
4) by step 3) liquid phase that obtains and carry out the process of second time anaerobically fermenting through the gas of gasification process gained;
5) step 4) gained material prepares industrial alcohol through distillation, process, rectifying after anaerobically fermenting.
2. the method preparing industrial alcohol according to claim 1, it is characterized in that, the described biodegradable moieties that city solid waste raw material includes but not limited to city solid phase waste, lignocellulose biomass, percolate, city has stable political situation in trade effluent, biological sludge, energy crop and agricultural residue.
3. the method preparing industrial alcohol according to claim 1, is characterized in that, described pretreatment process includes but not limited to chopping, grinding, ultrasonic and hydraulic pressure pulverizing.
4. the method preparing industrial alcohol according to claim 1, is characterized in that, described step 2) in leavening temperature be 40 ~ 60 DEG C.
5. the method preparing industrial alcohol according to claim 1, is characterized in that, step 2) and step 4) described in anaerobically fermenting respectively induction bed bioreactor in carry out.
6. the method preparing industrial alcohol according to claim 1 or 4 or 5, is characterized in that, described step 2) in anaerobic fermentation process, add nitrogenous, phosphorus, magnesium, sodium, manganese, calcium and cobalt mixture of nutrients.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044055.7A CN104561131A (en) | 2015-01-28 | 2015-01-28 | Method for preparing industrial alcohol from urban solid waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044055.7A CN104561131A (en) | 2015-01-28 | 2015-01-28 | Method for preparing industrial alcohol from urban solid waste |
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|---|---|
| CN104561131A true CN104561131A (en) | 2015-04-29 |
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| CN201510044055.7A Pending CN104561131A (en) | 2015-01-28 | 2015-01-28 | Method for preparing industrial alcohol from urban solid waste |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5753474A (en) * | 1995-12-26 | 1998-05-19 | Environmental Energy, Inc. | Continuous two stage, dual path anaerobic fermentation of butanol and other organic solvents using two different strains of bacteria |
| 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 |
| CN102352380A (en) * | 2011-10-14 | 2012-02-15 | 大连力达环境工程有限公司 | Food residue and sludge mixing anaerobic treatment method and system |
| CN102808000A (en) * | 2012-08-23 | 2012-12-05 | 辽宁科技大学 | Recycling grading utilization and carbon sequestration treatment method for municipal solid waste |
| CN103031338A (en) * | 2011-09-29 | 2013-04-10 | 北京信汇生物能源科技股份有限公司 | Method for continuous production of ethanol by gas phase substrate fermentation |
-
2015
- 2015-01-28 CN CN201510044055.7A patent/CN104561131A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5753474A (en) * | 1995-12-26 | 1998-05-19 | Environmental Energy, Inc. | Continuous two stage, dual path anaerobic fermentation of butanol and other organic solvents using two different strains of bacteria |
| 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 |
| CN103031338A (en) * | 2011-09-29 | 2013-04-10 | 北京信汇生物能源科技股份有限公司 | Method for continuous production of ethanol by gas phase substrate fermentation |
| CN102352380A (en) * | 2011-10-14 | 2012-02-15 | 大连力达环境工程有限公司 | Food residue and sludge mixing anaerobic treatment method and system |
| CN102808000A (en) * | 2012-08-23 | 2012-12-05 | 辽宁科技大学 | Recycling grading utilization and carbon sequestration treatment method for municipal solid waste |
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