CN103357259B - Biogas carbon dioxide recycle conversion process system - Google Patents
Biogas carbon dioxide recycle conversion process system Download PDFInfo
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- CN103357259B CN103357259B CN201310293874.6A CN201310293874A CN103357259B CN 103357259 B CN103357259 B CN 103357259B CN 201310293874 A CN201310293874 A CN 201310293874A CN 103357259 B CN103357259 B CN 103357259B
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
Biogas carbon dioxide recycle conversion process system, anaerobic fermentation system output containing carbon dioxide, carbon dioxide in biogas to be divided equally by carbon dioxide micropore gas distribution system and is distributed in carbon dioxide adsorption pond by the biogas of methane and a small amount of hydrogen sulfide, reduce water pH value and promote growth of diatom algae, data input in data acquisition integrated system through gas by purified gas, if gas concentration lwevel uses standard higher than biogas in tail gas, data acquisition integrated system controls opens solenoid valve, carbon dioxide in biogas is evenly distributed in carbon dioxide adsorption pond by carbon dioxide micropore gas distribution system by tail gas again that do not purify, if gas concentration lwevel uses standard lower than biogas, data acquisition integrated system controls opens solenoid valve, the oxygen of methane and a small amount of hydrogen sulfide gas and diatom output utilizes through micro-oxygen biological filter system, pass through biological agent, hydrogen sulfide and a small amount of oxygen are being oxidized to elementary sulfur and sulfate, make use of unnecessary oxygen simultaneously.
Description
Technical field: the present invention relates to a kind of cleaning system, especially a kind of based on carbon dioxide adsorption pond, output biogas in anaerobic fermentation tank process is soluble in water by carbon dioxide by carbon dioxide micropore gas distribution system, carbon dioxide recycling is realized by diatom cleaning system in water ecology, the diatom of output utilizes again as biomass energy, whole process can realize Methane Resourcesization and utilize, and belongs to field of environmental technology.
Background technology: greenhouse effects cause global temperatures to raise, affects life and the ecological environment of Man & Nature day by day.Carbon dioxide (CO
2) be most important artificial greenhouse gases, between 1970 to 2004, the discharge of carbon dioxide adds about 80%.Meanwhile, the use due to fossil fuel is the principal element that gas concentration lwevel increases, so before finding new forms of energy to substitute, rationally disposing the carbon dioxide of discharge is the emphasis that we urgently study and solve, and carbon dioxide discharge-reduction is imperative.
Summary of the invention: for the shortcoming of above-mentioned prior art, the invention provides a set of biogas carbon dioxide recycle conversion process system, the main thought of invention is that carbon dioxide is incorporated also its acidifying short in water, the pH value of water can be reduced, so just fundamentally inhibit the growth of the pollution algae such as blue-green algae, green alga being not suitable for weakly acidic condition, promote the growth of diatom algae of suitable weakly acidic condition.Diatom utilizes as biomass energy secondary.
For achieving the above object, the technical solution used in the present invention is: biogas carbon dioxide recycle conversion process system, comprising: anaerobic fermentation system, carbon dioxide adsorption pond, diatom, carbon dioxide micropore gas distribution system, gas on-line monitoring system, data acquisition integrated system, the first magnetic valve, the second magnetic valve, micro-oxygen biological filter system, solar energy drying system, pyrolysis system and Gas storage system.Anaerobic fermentation system is connected with carbon dioxide micropore gas distribution system.Diatom and carbon dioxide micropore gas distribution system are in carbon dioxide adsorption pond.The port of export in carbon dioxide adsorption pond is connected with gas on-line monitoring system, solar energy drying system.The arrival end in carbon dioxide adsorption pond is connected with gas on-line monitoring system by the first magnetic valve.Gas on-line monitoring system connects micro-oxygen biological filter system, Gas storage system successively by the second magnetic valve.Solar energy drying system is connected with Gas storage system by pyrolysis system.Data acquisition integrated system controls the first magnetic valve, the second magnetic valve, gas on-line monitoring system.
The main body of the design is carbon dioxide adsorption pond.Anaerobic fermentation system carry out output in anaerobic biodegradation process containing carbon dioxide, carbon dioxide in biogas to be divided equally by carbon dioxide micropore gas distribution system and is distributed in carbon dioxide adsorption pond by the biogas of methane and a small amount of hydrogen sulfide, reduce water pH value and promote the growth of diatom algae liking solutions of weak acidity, data input in data acquisition integrated system by purified gas after the analysis of gas on-line monitoring system, if gas concentration lwevel uses standard higher than biogas in tail gas, data acquisition integrated system controls unlatching first magnetic valve, carbon dioxide in biogas is evenly distributed in carbon dioxide adsorption pond by carbon dioxide micropore gas distribution system by tail gas again that do not purify, if gas concentration lwevel uses standard lower than biogas, data acquisition integrated system controls unlatching second magnetic valve, the oxygen of methane and a small amount of hydrogen sulfide gas and diatom output utilizes through micro-oxygen biological filter system, pass through biological agent, hydrogen sulfide and a small amount of oxygen are oxidized to elementary sulfur and sulfate under the effect of sulfate bacterium, make use of unnecessary oxygen simultaneously, methane after micro-oxygen biological filter system purification enters Gas storage system, in carbon dioxide adsorption pond, the diatom of output is through solar energy drying system and pyrolysis system, and the pyrolysis gas of output enters Gas storage system, whole process implementation biogas carbon dioxide recycle transforms, and promotes again the Growth and Reproduction of diatom in water ecosystem, forms new biomass energy.
Accompanying drawing illustrates:
Fig. 1 is structured flowchart of the present invention.
Detailed description of the invention:
As shown in Figure 1: biogas carbon dioxide recycle conversion process system, comprising: anaerobic fermentation system 1, carbon dioxide adsorption pond 2, diatom 3, carbon dioxide micropore gas distribution system 4, gas on-line monitoring system 5, data acquisition integrated system 6, first magnetic valve 7, second magnetic valve 8, micro-oxygen biological filter system 9, solar energy drying system 10, pyrolysis system 11 and Gas storage system 12.Anaerobic fermentation system 1 is connected with carbon dioxide micropore gas distribution system 4.Diatom 3 and carbon dioxide micropore gas distribution system 4 are in carbon dioxide adsorption pond 2.The port of export in carbon dioxide adsorption pond 2 is connected with gas on-line monitoring system 5, solar energy drying system 10.The arrival end in carbon dioxide adsorption pond 2 is connected with gas on-line monitoring system 5 by the first magnetic valve 7.Gas on-line monitoring system 5 connects micro-oxygen biological filter system 9, Gas storage system 12 successively by the second magnetic valve 8.Solar energy drying system 10 is connected with Gas storage system 12 by pyrolysis system 11.The first magnetic valve 7, second magnetic valve 8, gas on-line monitoring system 5 are made in data acquisition integrated system control 6.
Each component function:
1, anaerobic fermentation system: organic matter under anaerobic decomposes, output methane and carbon dioxide;
2, carbon dioxide adsorption pond: carbon dioxide adsorption pond: the carbon dioxide in biogas is kept in water body by nanometer film gas distribution system;
3, diatom: the one-celled plants with chromatoplast, often connects to colony miscellaneous by several or a lot of cell individual, can grow very well under mild acid conditions;
4, carbon dioxide micropore gas distribution system: gas distribution system end has microcellular structure, by this system, realizes carbon dioxide easy water body fast
5, gas on-line monitoring system: on-line monitoring biogas change in concentration situation
6, data acquisition integrated system: data acquisition integration module: data acquisition integration module is integrated in one piece of circuit board based on the chip, storage chip etc. of gas on-line monitor, data acquisition module platform, make its data-message be transferred to data handling system, realize gas concentration on-line monitoring;
7, the first magnetic valve and the second magnetic valve: the gauge tap of air gas circuit;
8, micro-oxygen biological filter system: under micro-oxygen conditions, hydrogen sulfide in methane gas oxygen is changed into the bioreactor of elementary sulfur and sulfate by oxide sulfate bacterium;
9, solar energy drying system: utilize solar energy to carry out dry a kind of drying device to diatom;
10, pyrolysis system: thermochemical reactor living beings being carried out pyrolytic reaction;
11, Gas storage system: the storage tank of biogas.
Workflow:
Carbon dioxide in biogas is evenly distributed in carbon dioxide adsorption pond 2 by carbon dioxide micropore gas distribution system 4 by the biogas containing carbon dioxide, methane and a small amount of hydrogen sulfide that 1, anaerobic fermentation system 1 is carrying out output in anaerobic biodegradation process;
2, reduce water pH value after the easy water body of carbon dioxide and promote that the diatom 3 liking solutions of weak acidity grows, data input in data acquisition integrated system 6 by purified gas after gas on-line monitoring system 5 is analyzed;
3, in tail gas, gas concentration lwevel uses standard higher than biogas, data acquisition integrated system 6 controls unlatching first magnetic valve 7, again being divided equally by the carbon dioxide in biogas by carbon dioxide micropore gas distribution system 4 by the tail gas do not purified is distributed in carbon dioxide adsorption pond 2, gas concentration lwevel uses standard lower than biogas, and data acquisition integrated system 6 controls unlatching second magnetic valve 8;
4, the oxygen of methane and a small amount of hydrogen sulfide gas and diatom output utilizes through micro-oxygen biological filter system 9;
5, by biological agent, hydrogen sulfide and a small amount of oxygen are oxidized to elementary sulfur and sulfate under the effect of sulfate bacterium, and make use of unnecessary oxygen, the methane after micro-oxygen biological filter system 9 purifies enters Gas storage system 12 simultaneously;
6, the diatom 3 of output pyrolysis system 11 after solar energy drying system 10 in carbon dioxide adsorption pond 2, the pyrolysis gas of output enters Gas storage system 12.
Claims (1)
1. biogas carbon dioxide recycle conversion process system, is characterized in that: comprise anaerobic fermentation system, carbon dioxide adsorption pond, diatom, carbon dioxide micropore gas distribution system, gas on-line monitoring system, data acquisition integrated system, the first magnetic valve, the second magnetic valve, micro-oxygen biological filter system, solar energy drying system, pyrolysis system and Gas storage system, anaerobic fermentation system is connected with carbon dioxide micropore gas distribution system, diatom and carbon dioxide micropore gas distribution system are in carbon dioxide adsorption pond, the port of export in carbon dioxide adsorption pond and gas on-line monitoring system, solar energy drying system connects, the arrival end in carbon dioxide adsorption pond is connected with gas on-line monitoring system by the first magnetic valve, gas on-line monitoring system connects micro-oxygen biological filter system successively by the second magnetic valve, Gas storage system, solar energy drying system is connected with Gas storage system by pyrolysis system, data acquisition integrated system controls the first magnetic valve, second magnetic valve, gas on-line monitoring system.
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Citations (3)
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|---|---|---|---|---|
| CN102337302A (en) * | 2011-09-26 | 2012-02-01 | 复旦大学 | Method for biologically purifying marsh gas and recycling waste of marsh gas |
| CN102992497A (en) * | 2012-12-25 | 2013-03-27 | 复旦大学 | Method capable of simultaneously purifying biogas slurry and enhancing biogas grade |
| CN103007741A (en) * | 2012-12-27 | 2013-04-03 | 复旦大学 | Serial system light source control method for improving grade of methane by microalgae |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337302A (en) * | 2011-09-26 | 2012-02-01 | 复旦大学 | Method for biologically purifying marsh gas and recycling waste of marsh gas |
| CN102992497A (en) * | 2012-12-25 | 2013-03-27 | 复旦大学 | Method capable of simultaneously purifying biogas slurry and enhancing biogas grade |
| CN103007741A (en) * | 2012-12-27 | 2013-04-03 | 复旦大学 | Serial system light source control method for improving grade of methane by microalgae |
Non-Patent Citations (1)
| Title |
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| 厦门水产学院贝类教研组.小球藻的生物学特性.《贻贝养殖》.科学出版社,1979,第136-137页. * |
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