CN204966596U - Processing apparatus is united to coal -based fuel of carbon fuel cell - Google Patents
Processing apparatus is united to coal -based fuel of carbon fuel cell Download PDFInfo
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- CN204966596U CN204966596U CN201520768860.XU CN201520768860U CN204966596U CN 204966596 U CN204966596 U CN 204966596U CN 201520768860 U CN201520768860 U CN 201520768860U CN 204966596 U CN204966596 U CN 204966596U
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model discloses a processing apparatus is united to coal -based fuel of carbon fuel cell. The utility model discloses a joint processing apparatus includes: device, physics belt cleaning device, chemical desulphurization unit, electrochemistry desulphurization unit, battery fuel collection device, coal slime water treatment facilities, sulphuric acid recovery unit and sulphide recovery unit are reserve to the coal -based body, the utility model provides a PCE unites processing apparatus, improves the microstructure of coal, the positive pole electrochemical reaction's of being convenient for emergence, can get rid of ash content and volatility more than 99% in the coal -based body effectively, get rid of the full sulphur more than 90%-95%, satisfy the requirement of fuel cell to carbon purity, provide a whole set of coal -based fuel cell fuel device, promoted the reference that provides the raw material handling device for fuel cell's industrialization later on, PCE combination treatment method principle is simple, and equipment cost is low, promotes significantly to the industrialization of solving carbon fuel cell sulfur poisoning, sulphur pollution and fuel cell.
Description
Technical field
The utility model relates to Direct Carbon Fuel Cells preparation field, is specifically related to a kind of carbon consuming cell coal derived fuel combined apparatus.
Background technology
Fuel cell (fuelcells, FCs) be after thermoelectricity, water power and nuclear power the 4th generation generation technology, it uniquely has both pollution-free, high efficiency, is suitable for wide, noiseless and has the power set of continuous operation and modularization feature, is considered to 21 century the most promising High Efficiency Low Pollution Power Generation Technology.As the one of fuel cell, Direct Carbon Fuel Cells DCFC can adopt graphite, active carbon, coal coke, biomass coke etc. to be fuel, carbon (derivative of carbon) and oxygen are through electrochemical reaction, must not gasify and directly produce electric energy, energy conversion efficiency is high, clean, fuel tolerance is wide feature that it has.The working temperature of Direct Carbon Fuel Cells is between 400 ~ 1000 DEG C.
Direct Carbon Fuel Cells DCFC take carbon as fuel, and compared with other fuel cells, the carbon (fuel) of often liter of dioxygen oxidation can release more energy (20kWh/L), and hydrogen is 2.4kWh/L, and methane is 4.2kWh/L.In normal conditions, the Entropy Changes (Δ S) of C+02 → C02 reaction is close to 0, and the change of enthalpy change and Gibbs free energy is almost equal, therefore DCFC theoretical efficiency can reach 100%; The gas that cell reaction generates is only CO: be convenient to reclaim, can alleviate greenhouse effect.
Carbon consuming cell is the earliest apart from the modern history having 110 years, but technology has just had progress comparatively fast in recent years, and the current density of current DCFC reaches 50-500mA/cm
2, power density reaches 4.5kW/m
2.Compare other type fuel cell, ontology research is still in the starting stage.In addition, using coal as fuel, face two problems, one is solid fuel feed problem; Two is that the pollutant contained in coal will cause electrode failure.To grade impurity containing a large amount of ash content, sulphur content and volatilization in coal, grey branch pollutes electrolyte, and sulphur content can reduce electrode activity.Need to carry out certain processing process to coal, reduce ash content, sulfur content and the volatile matter in coal, improve the microstructure of coal simultaneously, be convenient to the generation of anode electrochemical reaction.Fused electrolyte needs the condiments that purity is very high, and 89: electrolyte, require lower to fuel purity, in current laboratory research, usually use graphite as fuel.Graphite price is tens times of coal, and limits throughput, cannot use be popularized.How by coal, even refinery residues, biomass, municipal refuse etc. are converted into operational carbon fuel at an easy rate, are the study hotspots of Chinese scholars and each company.
At present for the process problem of carbon fuel, the research work that group is wanted mainly concentrates on the developed country such as the U.S. and Japan, the domestic research work also having some scholars to be correlated with.
Brookhaven National Laboratory of the U.S. proposes a kind of method of PlasmaBlack, by the plasma that adds hydrogen by fossil energy or biomass continuously pyrolysis be carbon black and H
2.This technology is applied in the earliest with in the carbon black commodity production that is raw material of natural gas and oil.H
2plasma temperatures can reach 1500 DEG C, pyrolysis of hydrocarbons Formed and H
2.Establish at present and used natural gas and oil annual output 20000 tons of carbon blacks as fuel and the H of 25 billion cubic meters
2chemical plant.But, be that the PlasmaBlack research of raw material is still at the experimental stage with coal.
West Virginia Univ. of the U.S. proposes the method that solvent extraction reduces impurity in coal.By organic solvent extraction, fuel value can be improved, remove organic ash content and organic sulphur content in coal, only stay a small amount of mineral matter and inorganic sulfur.Before and after process, coal calorific value about has & OP sulphur, and before and after process, coal calorific value about has 17% lifting, and ash content is down to less than 1%, and sulfur content also drops to about 1% from 4%.In conjunction with pyrolysis and calcination process, volatile matter in coal can be removed, improve the internal microstructure of carbon simultaneously, be conducive to the generation of anode electrochemical reaction.The core of abstraction technique is choosing of extractant, and extractant should possess removal impurity, and remaining extractant is harmless to DCFC, low price, adapts to the functions such as use of large-scale production.Whole extraction, pyrolysis, calcination process is consuming time, power consumption, brings certain influence to economy.
Cooper proposes the method that carbon fuel is produced in the cleaning of a kind of waterpower.First pulverized by coal, carbon and ash are graded magazins' layout by the method for then being cleaned by waterpower, after drying as fuel.After waterpower cleaning, in coal, ash is all higher compared with extraction lower than 1% ash content with sulfur content, need further clean or periodic replacement electrolyte, but the course of processing cost of coal is lower.Because the electrolyte cost of DCFC is lower, change electrolyte within a certain period of time and be fine.
China Mining University proposes a kind of coal-based carbon fuel cell sulphuring treatment technique, by analyzing existing technique, propose many processes treatment process of washing, chemical oxidation, electrochemical oxidation, ion liquid abstraction, solvent extraction and high-temperature fixed sulfur, effectively can reduce the content of sulphur.But first its step more complicated, adds the cost of whole carbon consuming cell itself, second is occur in the electrolyte in electrochemical oxidation process, easily impacts whole chemical reaction process, destroys the activity of anode and cathode.
Utility model content
In order to improve the operating efficiency of battery, improve the combination property of battery, meet the purity requirement of current DCFC to carbon fuel, needing with coal is primary raw material, the utility model provides a kind of carbon consuming cell coal derived fuel combined apparatus and processing method thereof, explore preparation technology and the transformation technology of purity carbon, improve the industrialization promotion ability of battery.
The purpose of this utility model is to provide a kind of carbon consuming cell coal derived fuel combined apparatus.
Carbon consuming cell coal derived fuel combined apparatus of the present utility model comprises: coal-based body storage device, physical cleaning device, chemical desulfurization device, Electrochemistry Desulfurization device, battery fuel gathering-device, Water treatment device for coal slime, sulphuric acid recovery device and sulfide retracting device; Wherein, coal-based body is stored in coal-based body storage device, coal-based body storage device by transfer canal to physical cleaning device; Physical cleaning device is connected to chemical desulfurization device by transfer canal, and the bottom of physical cleaning device connects Water treatment device for coal slime; Chemical desulfurization device is connected to Electrochemistry Desulfurization device by transfer canal, and the bottom of chemical desulfurization device is connected to sulphuric acid recovery device; Electrochemistry Desulfurization device is by transfer canal to battery fuel gathering-device, and the bottom of Electrochemistry Desulfurization device is connected to sulfide retracting device.
Physical cleaning device comprises coal crusher, dense-medium shallow-tank separator, flotation basin, dryer and Water treatment device for coal slime; Wherein, coal crusher, dense-medium shallow-tank separator and flotation basin are connected in series by transfer canal successively; Dense-medium shallow-tank separator is connected Water treatment device for coal slime respectively with the bottom of flotation basin.
Chemical desulfurization device comprises oxidation unit, hydrolysis device and sulphuric acid recovery device; Wherein, the dryer in physical cleaning device is connected to oxidation unit by transfer canal; Oxidation unit connects hydrolysis device by transfer canal; The bottom of hydrolysis device connects sulphuric acid recovery device.
Electrochemistry Desulfurization device comprises electrolysis tank and sulfide retracting device; Wherein, the hydrolysis device in chemical desulfurization device is connected to the entrance of electrolysis tank, and electrolysis tank arranges height two outlets respectively, connects battery fuel gathering-device and sulfide retracting device respectively.
Carbon consuming cell coal derived fuel combination treatment method of the present utility model, comprises the following steps:
1) coal-based body is transported to physical cleaning device from coal-based body storage device;
2) physical cleaning:
A) coal-based body is sent into coal crusher to pulverize, obtain the coal particle of uniform particle size, granularity reaches 40 ~ 80 orders;
B) coal particle enters dense-medium shallow-tank separator dense-medium shallow-tank separator by transfer canal, in liquid medium, the gangue be entrained in coal particle sinks, and entering Water treatment device for coal slime from the passage be arranged on bottom dense-medium shallow-tank separator, coal particle floats and enters flotation basin by transfer canal;
C) flotation basin picks out the coal particle of less than 0.5 granularity, enters dryer by transfer canal, and remaining part enters Water treatment device for coal slime;
D) coal particle is dried by dryer, is delivered to chemical desulfurization device;
3) chemical desulfurization:
Application glacial acetic acid and zinc peroxide mixture as oxidant, under the catalytic action of catalyst, zinc peroxide and CH
3cOOH reaction generates hydroxyl radical free radical and perhydroxyl radical free radical, organic sulfur in coal particle is become sulfonic acid, is finally hydrolyzed into sulfuric acid, remove from coal particle, sulfuric acid enters sulphuric acid recovery device, forms carbon fuel particle and be transported to Electrochemistry Desulfurization device after coal particle desulfurization;
4) method of Electrochemistry Desulfurization is:
By adding oxidant and the NaOH hybrid oxidant of metal oxide in the electrolysis tank to Electrochemistry Desulfurization device, be water miscible sulfide by the organic sulfur conversion in the sulphur in the troilite in carbon fuel particle and coal-based body, thus simultaneous removing organic sulfur and inorganic sulfur, sulfide enters sulfide retracting device, carbon fuel particle after Electrochemistry Desulfurization is transported to battery fuel gathering-device, thus obtains carbon fuel.
Wherein, in step 2) in, can substantially realize removing the ash content of in coal 50% ~ 80% after physical cleaning, the full sulphur (or inorganic sulfur of 60% ~ 80%) of 30% ~ 40%.
In step 3) in, hydroxyl radical free radical is the strongest inorganic oxidizer except fluoric acid, effectively can strengthen the oxidizability of mixed solution, reduces reaction activity, improves the reaction rate of desulfurization.By chemical desulfurization, desulfurization degree can reach about 70% ~ 80%.
In step 4) in, the electro-chemical reaction equations of troilite is: FeS
2+ 8H
2o+15e-→ Fe
3++ 2SO
4 2-+ 16H
+, carbon fuel particle in a device with oxidant and catalyst association response, facilitate desulphurization reaction, achieve the deep purifying of coal.After electrochemical reaction desulfurization, desulfurization degree can reach about 90% ~ 95%.The oxidant of metal oxide adopts the one in zinc oxide, calcium oxide, magnesium oxide and iron oxide.
This combination treatment method by physical cleaning (PhysicalCleaning)+chemical desulfurization (ChemicalDesulfurization)+Electrochemistry Desulfurization (ElectrochemicalDesulfurization) PCE of the utility model, improve the microstructure of coal, be convenient to the generation of anode electrochemical reaction; Effectively can remove ash content and the volatile matter of in coal-based body more than 99%, remove the full sulphur of more than 90% ~ 95%, significant to the industrialization promotion solving carbon consuming cell sulfur poisoning, sulphur pollution and fuel cell.
Advantage of the present utility model:
1. propose the coal derived fuel battery combined treatment process of PCE, effectively can remove the ash content of the overwhelming majority in coal-based body, volatile matter and sulphur content, meet the requirement of fuel cell to carbon purity;
2. propose a whole set of coal derived fuel battery fuel device, the industrialization promotion for later fuel cell provides the reference of material processing device;
3.PCE combination treatment method principle is simple, and equipment cost is low, can apply.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of carbon consuming cell coal derived fuel combined apparatus of the present utility model;
Fig. 2 is the flow chart of carbon consuming cell coal derived fuel combination treatment method of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, set forth the utility model further.
As shown in Figure 1, the carbon consuming cell coal derived fuel combined apparatus of the present embodiment comprises: coal-based body storage device, physical cleaning device, chemical desulfurization device, Electrochemistry Desulfurization device, battery fuel gathering-device, Water treatment device for coal slime, sulphuric acid recovery device and sulfide retracting device; Wherein, coal-based body is stored in coal-based body storage device, coal-based body storage device by transfer canal to physical cleaning device; Physical cleaning device is connected to chemical desulfurization device by transfer canal, and the bottom of physical cleaning device connects Water treatment device for coal slime; Chemical desulfurization device is connected to Electrochemistry Desulfurization device by transfer canal, and the bottom of chemical desulfurization device is connected to sulphuric acid recovery device; Electrochemistry Desulfurization device is by transfer canal to battery fuel gathering-device, and the bottom of Electrochemistry Desulfurization device is connected to sulfide retracting device.
It is finally noted that, the object publicizing and implementing example is to help to understand the utility model further, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and appended claim, various substitutions and modifications are all possible.Therefore, the utility model should not be limited to the content disclosed in embodiment, and the scope that the claimed scope of the utility model defines with claims is as the criterion.
Claims (4)
1. a carbon consuming cell coal derived fuel combined apparatus, it is characterized in that, described combined apparatus comprises: coal-based body storage device, physical cleaning device, chemical desulfurization device, Electrochemistry Desulfurization device, battery fuel gathering-device, Water treatment device for coal slime, sulphuric acid recovery device and sulfide retracting device; Wherein, coal-based body is stored in coal-based body storage device, described coal-based body storage device by transfer canal to physical cleaning device; Described physical cleaning device is connected to chemical desulfurization device by transfer canal, and the bottom of physical cleaning device connects Water treatment device for coal slime; Described chemical desulfurization device is connected to Electrochemistry Desulfurization device by transfer canal, and the bottom of chemical desulfurization device is connected to sulphuric acid recovery device; Described Electrochemistry Desulfurization device is by transfer canal to battery fuel gathering-device, and the bottom of Electrochemistry Desulfurization device is connected to sulfide retracting device.
2. combined apparatus as claimed in claim 1, it is characterized in that, described physical cleaning device comprises coal crusher, dense-medium shallow-tank separator, flotation basin, dryer and Water treatment device for coal slime; Wherein, coal crusher, dense-medium shallow-tank separator and flotation basin are connected in series by transfer canal successively; Described dense-medium shallow-tank separator is connected Water treatment device for coal slime respectively with the bottom of flotation basin.
3. combined apparatus as claimed in claim 2, it is characterized in that, described chemical desulfurization device comprises oxidation unit, hydrolysis device and sulphuric acid recovery device; Wherein, the dryer in described physical cleaning device is connected to oxidation unit by transfer canal; Oxidation unit connects hydrolysis device by transfer canal; The bottom of described hydrolysis device connects sulphuric acid recovery device.
4. combined apparatus as claimed in claim 3, it is characterized in that, described Electrochemistry Desulfurization device comprises electrolysis tank and sulfide retracting device; Wherein, the hydrolysis device in described chemical desulfurization device is connected to the entrance of electrolysis tank, and described electrolysis tank arranges height two outlets respectively, connects battery fuel gathering-device and sulfide retracting device respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520768860.XU CN204966596U (en) | 2015-09-30 | 2015-09-30 | Processing apparatus is united to coal -based fuel of carbon fuel cell |
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|---|---|---|---|
| CN201520768860.XU CN204966596U (en) | 2015-09-30 | 2015-09-30 | Processing apparatus is united to coal -based fuel of carbon fuel cell |
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| CN204966596U true CN204966596U (en) | 2016-01-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958094A (en) * | 2016-05-30 | 2016-09-21 | 国电新能源技术研究院 | Low-grade coal fuel cell |
| CN105977514A (en) * | 2016-05-30 | 2016-09-28 | 国电新能源技术研究院 | Sludge fuel cell |
-
2015
- 2015-09-30 CN CN201520768860.XU patent/CN204966596U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958094A (en) * | 2016-05-30 | 2016-09-21 | 国电新能源技术研究院 | Low-grade coal fuel cell |
| CN105977514A (en) * | 2016-05-30 | 2016-09-28 | 国电新能源技术研究院 | Sludge fuel cell |
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| GR01 | Patent grant |