CN201416000Y - Fermentative hydrogen production experimental device assisted by electrolysis - Google Patents
Fermentative hydrogen production experimental device assisted by electrolysis Download PDFInfo
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- CN201416000Y CN201416000Y CN 200820228931 CN200820228931U CN201416000Y CN 201416000 Y CN201416000 Y CN 201416000Y CN 200820228931 CN200820228931 CN 200820228931 CN 200820228931 U CN200820228931 U CN 200820228931U CN 201416000 Y CN201416000 Y CN 201416000Y
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/34—Internal compartments or partitions
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/04—Filters; Permeable or porous membranes or plates, e.g. dialysis
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M43/00—Combinations of bioreactors or fermenters with other apparatus
Abstract
Disclosed is a fermentative hydrogen production experimental device assisted by electrolysis. The experimental device belongs to devices of biomass fermentative hydrogen production and is characterized in that an anode chamber is used as a fermentation chamber, a cathode chamber is used as a hydrogen production chamber, the chambers are separated by a partition and run through by a perfluorinatedproton-exchange membrane, an electrode conducting wire is used by an electrochemical workstation unit to supply electrolysis power supply to the anode chamber and the cathode chamber, and a gas collecting unit respectively collects gases generated by the anode chamber and the cathode chamber based on the principle of water drainage and gas collection. The experimental device is convenient inmaterial obtainment, low in cost, visualized in experimental process, and convenient in adjustment of parameters and record of reflecting effects, thereby being widely applied in related teaching andexperiment.
Description
Technical field
The utility model belongs to the device of biomass ferment hydrogen manufacturing.
Background technology
Ferment for hydrogen production is based on anaerobic digestion process, this hydrogen production process foreign scholar is referred to as the dark ferment for hydrogen production of microorganism, and think to be hopeful most one of technology that realizes the mass-producing biological hydrogen production (Levin, D.B.et al.Biohydrogen production:prospects and limitations to practical application[J], International Journal ofHydrogen Energy, 2004,29 (2): 173-185; Ni, M.et al.An overview of hydrogenproduction from biomass[J], Fuel Processing Technology, 2006,87 (5): 461-472.).Yet result of study in recent years shows, the energy transformation efficiency of ferment for hydrogen production be no more than 15% usually (Turner, J.A.Hydrogen biotechnology:Progress and prospects[J], Nature Biotechnol, 2004,14 (9): 1101-3).Its reason is the restriction of mechanics factor of being heated, and VFA such as a large amount of acetate, propionic acid and butyric acid can not be converted into hydrogen, cause the hydrogen transformation efficiency lower.For improving the hydrogen transformation efficiency, Chinese scholars has been carried out number of research projects, and the hydrogen transformation efficiency increases, but still can't break through 4molH
2The limit of/mol glucose.On the other hand, the accumulation of organic volatile acid except that at the bottom of causing the hydrogen transformation efficiency, has had a strong impact on stability (problem that Li Jianchang etc., fermentation and hydrogen production face and countermeasure [J], renewable energy source, 2006, (4): 50-53) of ferment for hydrogen production again.Scholar's research has been arranged produces in the hydrogen system at formic acid, external source adds the inhibition influence (Li of VFA such as acetate, propionic acid and butyric acid to the fermentation and hydrogen production process, Jianchang etal.Anaerobic Fermentation for Hydrogen Production from 11 Organic Acids[J], Scientific Research Monthly, 2008,7 (5): 34-37,43), the accumulation that shows acid volatility end products is to cause the unsettled one of the main reasons of ferment for hydrogen production, and is referred to as the feedback inhibition influence of ferment for hydrogen production meta-bolites.
Liu in 2005 and Logan utilize and add electrolysis power and relend the research means that helps microbiological fuel cell and carried out the acetate electrolysis and assist the hydrogen manufacturing experiment, and succeed, be referred to as " microorganism hydrogen manufacturing is assisted in electrolysis " (Liu, H.et al.Electrochemically assisted microbial production of hydrogen from acetate[J], Environ Sci Technol, 2005,39 (11): 4317-20).In view of above-mentioned be that electrochemical principle and microbiological fuel cell technology are incorporated in the ferment for hydrogen production, referred to herein as " electrolysis assistance ferment for hydrogen production ".This technology has fundamentally overcome the thermodynamical restriction that traditional zymotic hydrogen manufacturing can't overcome itself and the feedback inhibition of meta-bolites, greatly improves the energy transformation efficiency of ferment for hydrogen production, is expected to realize biomass efficient and stable hydrogen manufacturing.But the simple experimental device that is used for research technique does not provide as yet.
Summary of the invention
The purpose of this utility model provide the convenience of drawing materials, less investment, experimentation directly perceived, be suitable for imparting knowledge to students and the ferment for hydrogen production experimental installation is assisted in the electrolysis of testing application.
For achieving the above object, the utility model is realized in the following manner:
This device for producing hydrogen is made up of anolyte compartment 1, cathode compartment 2, electrochemical workstation unit 7 and gas collection unit, wherein: anolyte compartment 1 is as proving room, cathode compartment 2 is as producing the hydrogen chamber, anolyte compartment 1 and cathode compartment 2 are made by synthetic glass, separate with dividing plate in the centre of chamber and connect by full fluorin proton exchange film 12; Feed intake and stopple coupon 9 and pneumatic outlet 15 stretch in anolyte compartment 1 and the cathode compartment 2 by plug 8; Electrochemical workstation unit 7 provides electrolysis power by electrode cable anode chamber 1 and cathode compartment 2; Gas collection unit is collected the gas of anolyte compartment 1 and cathode compartment 2 generations respectively by the draining water gathering of gas law principle.
Described in the anolyte compartment 1 and cathode compartment 2 be furnished with Ag/AgCl reference electrode 10 and 14 respectively.Described gas collection unit is made up of anodic gas collector unit 16,17 and cathode gas collector unit 4,5, collects the gas that anolyte compartment 1 and cathode compartment 2 produce.Described anode adopts Graphite Electrodes 11, and negative electrode adopts platinized platinum electrode 13.
The principle that the utility model reaches is: under electrolysis is assisted, set up the electrode breathing by the electrogenesis microorganism and the anode that produce in the hydrogen activity mud, the exhaustive oxidation organic substrates also forms CO
2, H
+And electronics, the electronics that produces in the oxidising process being delivered to by electron transport chain producing electric current on the electrode then, microorganism obtains energy support growth in electron transfer process simultaneously, and electronics flows to negative electrode through electronic circuit again; Proton then is diffused into cathode pool by the proton film, is reduced into hydrogen at the negative electrode electron gain.
The utility model utilizes the laboratory common material to make up, and draws materials conveniently, and cost is low, and experimentation is directly perceived, and experiment parameter adjustment and reaction effect are convenient to record adjustment, is a kind of experimental installation that is widely used in relevant teaching and test practice.
Description of drawings
Fig. 1 is the basic device of hydrogen manufacturing, and this device is divided into three unit, i.e. fermentation unit, electrochemical workstation and gas collection unit.Anolyte compartment 1, cathode compartment 2, thermostatic control system 3, cathode gas collector unit 4,5, Y-tube 6, electrochemical workstation 7, plug 8 are arranged among the figure, feed intake and stopple coupon 9, Ag/AgCl reference electrode 10 and 14, anode graphite electrode 11, full fluorin proton exchange film 12, negative electrode platinized platinum electrode 13, pneumatic outlet 15 anodic gas collector unit 16,17.
Embodiment
As shown in Figure 1, fermentation unit is by the anolyte compartment 1 as proving room, form as cathode compartment 2 that produces the hydrogen chamber and thermostatic control system 3, wherein anolyte compartment 1 and cathode compartment 2 are made by synthetic glass respectively, volume is respectively 500ml, and is middle with the dividing plate separation and by full fluorin proton exchange film (GEFC-107) 12 perforations.Anode adopts Graphite Electrodes 11, and negative electrode adopts 3 * 3mm platinized platinum electrode 13, is furnished with the Ag/AgCl reference electrode 10 and 14 of 3 * 3mm simultaneously respectively.The top of anolyte compartment and cathode compartment is furnished with plug 8 respectively, feeds intake on the plug 8 and stopple coupon 9, also has pneumatic outlet 15, feeds intake and stopple coupon 9 and pneumatic outlet 15 stretch in anolyte compartment 1 and the cathode compartment 2 by plug 8.Electrochemical workstation unit 7 provides electrolysis power by electrode cable, writes down electrochemical parameters such as electrolysis voltage, electric current or current density, electrode potential and time simultaneously.Gas collection unit is made up of anodic gas collector unit 16,17 and cathode gas collector unit 4,5 respectively, collects the gas of anolyte compartment 1 and cathode compartment 2 hydrogen manufacturing generation respectively by the draining water gathering of gas law principle.Air collector is 4,17 in collector unit, graduated cylinder is 5,16.
Utilizing this device hydrogen manufacturing can intuitively carry out electrolysis easily assists hydrogen manufacturing to improve the test of energy transformation efficiency.Test-results shows: be substrate with acetate, electrolysis enclosed pasture efficient is 60-80%, is 80-90% and electronics is converted into the rate of recovery of hydrogen, and the hydrogen generation efficiency that is equivalent to acetate is 2.5-3.0molH
2/ acetate, the energy consumption of every cubic metre of hydrogen is equivalent to 0.5-0.8kwh, and this result is well below the energy consumption 4.5-5kwh of water electrolysis hydrogen production.With glucose is substrate, and the hydrogen of electrolysis assist in generating adds the hydrogen that fermenting bacteria produces, and hydrogen generation efficiency can reach 8-10mol H
2/ mol glucose has been broken through the theoretical boundary 4molH of traditional zymotic hydrogen manufacturing far away
2/ mol glucose.
Claims (4)
1, the ferment for hydrogen production experimental installation is assisted in electrolysis, it is characterized in that this device for producing hydrogen is made up of anolyte compartment (1), cathode compartment (2), electrochemical workstation unit (7) and gas collection unit, wherein:
Anolyte compartment (1) is as proving room, and cathode compartment (2) is as producing the hydrogen chamber, and anolyte compartment (1) and cathode compartment (2) are made by synthetic glass, separates and pass through full fluorin proton exchange film (12) connecting with dividing plate in the centre of chamber;
Feed intake and stopple coupon (9) and pneumatic outlet (15) stretch in anolyte compartment (1) and the cathode compartment (2) by plug (8);
Electrochemical workstation unit (7) provides electrolysis power by electrode cable anode chamber (1) and cathode compartment (2);
Gas collection unit is collected the gas of anolyte compartment (1) and cathode compartment (2) generation respectively by the draining water gathering of gas law principle.
2, the ferment for hydrogen production experimental installation is assisted in electrolysis according to claim 1, it is characterized in that (1) and cathode compartment (2) are furnished with Ag/AgCl reference electrode (10) and (14) respectively in the anolyte compartment.
3, the ferment for hydrogen production experimental installation is assisted in electrolysis according to claim 1 and 2, it is characterized in that gas collection unit is made up of anodic gas collector unit (16), (17) and cathode gas collector unit (4), (5), collect the gas of anolyte compartment (1) and cathode compartment (2) generation.
4, the ferment for hydrogen production experimental installation is assisted in electrolysis according to claim 1 and 2, it is characterized in that anode adopts Graphite Electrodes (11), and negative electrode adopts platinized platinum electrode (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200820228931 CN201416000Y (en) | 2008-12-19 | 2008-12-19 | Fermentative hydrogen production experimental device assisted by electrolysis |
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| CN 200820228931 CN201416000Y (en) | 2008-12-19 | 2008-12-19 | Fermentative hydrogen production experimental device assisted by electrolysis |
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| CN201416000Y true CN201416000Y (en) | 2010-03-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352309A (en) * | 2011-10-21 | 2012-02-15 | 南京工业大学 | Electrolytically promoted anaerobic fermentation apparatus and application method thereof |
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2008
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352309A (en) * | 2011-10-21 | 2012-02-15 | 南京工业大学 | Electrolytically promoted anaerobic fermentation apparatus and application method thereof |
| CN102352309B (en) * | 2011-10-21 | 2014-03-19 | 南京工业大学 | Electrolytically promoted anaerobic fermentation apparatus and application method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20111219 |