CN105602999A - System and method used for producing high-quality biological methane gas from biomass - Google Patents
System and method used for producing high-quality biological methane gas from biomass Download PDFInfo
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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
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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
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Abstract
The invention provides a system and a method used for producing high-quality biological methane gas from biomass. The method comprises following steps: biomass is subjected to pyrolysis gasification so as to obtain a gas raw material, solid carbon, and bio-oil, wherein 100v% of the gas raw material comprises 20 to 40v% of H2, 20 to 30v% of CO, 10 to 20v% of CH4, and 20 to 30v% of CO2; the gas raw material and a leavening agent are mixed for anaerobic fermentation in-suit enrichment methane reaction so as to obtain a mixed gas of CH4 and CO2, wherein 100v% of the mixed gas of CH4 and CO2 comprises 65 to 68v% of CH4 and 32 to 35v% of CO2; and the mixed gas of CH4 and CO2, exogenous H2, and the leavening agent are mixed for anaerobic fermentation in-suit enrichment methane reaction so as to obtain biological methane gas. In the obtained biological methane gas, the volume fraction of methane is larger than 90%.
Description
Technical field
The present invention relates to a kind of system and method that utilizes living beings to produce high-quality biological methane gas, belong to living beings highEffect recovery energy technical field.
Background technology
Traditional fossil fuel is being faced with day by day exhausted problem as a kind of non-renewable resource, at world wideInside all there is energy crisis in various degree. In the face of traditional fossil energy day by day in short supply, countries in the world start to add great developmentThe paces of new forms of energy, wherein, the new energy technology development taking living beings as raw material rapidly. Living beings mainly refer to organic in plantMatter, the approach of generation is mainly the photosynthesis of plant. The whole world is stored at the biomass energy in biosphere every year by photosynthesisBe about 2.3ZJ, therefore, the development potentiality in biomass energy future is huge.
At present, state's endogenous substance mainly concentrates on agricultural crop straw, forestry waste and energy-source plant etc. Living beings are utilizedTechnology mainly comprises direct combustion method, biotransformation method, heat chemistry conversion method etc. But existing living beings are utilized technology effectRate is low, the energy that can not be high-quality by biomass conversion well.
Taking agricultural crop straw as example, directly burn can a large amount of polluter such as flue dust, particle of generation, to aroundEnvironment produces severe contamination, and the efficiency of energy utilization that burning produces is lower.
Biotransformation method is as producing methane through anaerobic fermentation technology, owing to being mainly lignocellulosic in stalk, and its distinctive propertyIt is long that matter makes the anaerobic fermentation taking stalk as raw material usually exist start-up time, and raw material availability is low (is generally 50%-60%), factor of created gase is low (is generally 200-300m3/ t), biogas quality is low, and (methane content is in 50% left and right, and calorific value is at 17MJ/m3Left and right), and exist the problems such as fermentation input and output material difficulty, biogas residue and biogas liquid difficult treatment. In addition, using methane purification as automobile-used combustionGas need to add extra equipment could realize methane purification, or needs high pressure or add chemical substance just can carry out, therebyOperating cost is higher.
Heat chemistry conversion method as pyrolytic gasification technology be to process this biolobic material good method, its energy conversion efficiency canTo reach more than 90%, but exist tar yield large (being about the 10%-30% of total raw material), pyrolysis gas productive rate is low (generalFor 400-600m3/ t), low (gas componant complexity, comprises H to quality2，CO，CH4，CO2Deng gas, calorific value is at 10MJ/m3Left and right),Have the problems such as toxicity (CO is poisoning), and pyrolysis gas is general only for the energy supply of burning, heat supply or combustion power generation.
Summary of the invention
In order to solve the aforesaid drawbacks and deficiency, the object of the present invention is to provide one to utilize living beings production high-qualityThe system of biological methane gas.
The present invention also aims to provide the living beings of utilizing of application said system to produce high-quality biological methane gasMethod.
For achieving the above object, the invention provides a kind of method of utilizing living beings to produce high-quality biological methane gas, itsIn, the method comprises the following steps:
A, living beings are carried out to pyrolytic gasification reaction, obtain gas raw material, solid carbon and bio oil;
Taking the cumulative volume of gas raw material as 100%, the H that this gas raw material comprises 20-40v%2, 20-30v% CO,The CH of 10-20v%4CO with 20-30v%2；
B, described gas raw material is mixed with leavening and carries out anaerobic fermentation in-situ enrichment methane reaction, obtain CH4And CO2Mist;
With CH4And CO2The cumulative volume of mist be 100%, described CH4And CO2Mist comprise 65-The CH of 68v%4CO with 32-35v%2；
C, by described CH4And CO2Mist, external source H2And anaerobic fermentation in-situ enrichment methane is carried out in leavening mixingReaction, obtains described biological methane gas.
According to method of the present invention, in the preferred embodiment of the present invention, the method also comprises steps d:
Completing after above-mentioned steps c, in the second methanator, pass into N2(anaerobic environment) is to remove the second methaneChange residual CO in the vacant volume in reactor top2, readjust subsequently air inlet.
According to method of the present invention, in steps d, remove in the second vacant volume in methanator top residualCO2Can avoid the impact on subsequent experimental of the gas that retains in reactor before again ventilating.
According to method of the present invention, described living beings are including but not limited to agricultural crop straw, forestry waste, animalIght soil, energy-source plant and organic solid castoff. In the preferred embodiment of the present invention, need in advance that biomass material is logicalCross rub, pulverize, the pretreating process such as grinding is processed into powder or graininess, the particle diameter of this powder or particulate biomassBe less than 10mm, and the water content of living beings is controlled to 10% left and right.
According to method of the present invention, preferably, the mass ratio of described gas raw material, solid carbon and bio oil is 10:5:1。
According to method of the present invention, preferably, the reaction of pyrolytic gasification described in step a is to gasify at fixed-bed pyrolysisIn reactor, carry out, in described fixed-bed pyrolysis gasification reactor, be filled with charcoal.
According to method of the present invention, preferably, described charcoal derives from that biomass pyrogenation gasification reaction obtainsSolid carbon.
According to method of the present invention, preferably, the loadings of described charcoal is fixed-bed pyrolysis gasification reactorThe 1/2-2/3 of cumulative volume. The present invention's fixed-bed pyrolysis gasification reactor used is that the conventional pyrolytic gasification of this area use is anti-Answer device.
According to method of the present invention, preferably, the reaction temperature of the reaction of pyrolytic gasification described in step a is 400-1000 DEG C, the reaction time is 0.1-3h.
According to method of the present invention, preferably, the reaction of the in-situ enrichment of anaerobic fermentation described in step b methane reactionTemperature is 30-40 DEG C, and the time of staying is 0.1-48h;
More preferably the stirring intensity of described anaerobic fermentation in-situ enrichment methane reaction is 50-400rpm.
According to method of the present invention, preferably, leavening described in step b is through H2、CO、CH4And CO2MixingLeavening after gas domestication is cultivated;
More preferably with described H2、CO、CH4And CO2The cumulative volume of mist be 100%, this mist comprisesThe CO of 20v%2, the CO of 30v%, the CH of 15v%4And the H of 35v%2。
According to method of the present invention, preferably, the time of described domestication is 5-20d.
According to method of the present invention, described leavening is the natural pond of stalk and animal wastes gained after anaerobic fermentationSlag, described natural pond slag can, purchased from the anaerobic fermentation factory of any normal operation, contain the required fermentation of anaerobic fermentation micro-in this natural pond slagBiology, this fermentative microorganism is mainly wide ancient bacterium class microorganism, specifically comprise salt bacillus, methane bacteria, sarcina methanica,Methane capsule bacterium and methane hair on the neck bacterium etc.
In the preferred embodiment of the present invention, leavening used needs in advance through H2、CO、CH4And CO2Gaseous mixtureBody domestication is cultivated, and after domestication is cultivated, the fermentative microorganism in leavening can resistance to CO toxicity, and then can more be conducive to detestThe carrying out of aerobe fermentation.
The technological means for this area routine is cultivated in domestication of the present invention, and those skilled in the art can be according to sceneJob requirements, selects suitable method to tame cultivation to fermentative microorganism.
According to method of the present invention, " in step b, gas raw material being mixed with leavening " is real by following operationExisting: before reaction, first described leavening is loaded in the first methanator with enrichment in the first methanatorFermentative microorganism, and then by gas raw material the first methanator of high gravity fermentation microorganism that passed into enrichmentCarry out anaerobic fermentation in-situ enrichment methane reaction.
According to method of the present invention, the present invention does not do requirement to the consumption of leavening described in step b, this area skillArt personnel can need to add the leavening of suitable dose according to field operation in the first methanator, as long as can ensureCarrying out smoothly of anaerobic fermentation reaction is just passable.
According to method of the present invention, preferably, the reaction of the in-situ enrichment of anaerobic fermentation described in step c methane reactionTemperature is 30-40 DEG C, and the time of staying is 0.1-48h;
More preferably the stirring intensity of described anaerobic fermentation in-situ enrichment methane reaction is 50-400rpm.
According to method of the present invention, preferably, leavening described in step c is through H2、CO、CH4And CO2MixingLeavening after gas domestication is cultivated;
More preferably with described H2、CO、CH4And CO2The cumulative volume of mist be 100%, this mist comprisesThe CO of 20v%2, the CO of 30v%, the CH of 15v%4And the H of 35v%2。
According to method of the present invention, preferably, the time of described domestication is 5-20d.
According to method of the present invention, described leavening is the natural pond of stalk and animal wastes gained after anaerobic fermentationSlag, described natural pond slag can, purchased from the anaerobic fermentation factory of any normal operation, contain the required fermentation of anaerobic fermentation micro-in this natural pond slagBiology, this fermentative microorganism is mainly wide ancient bacterium class microorganism, specifically comprise salt bacillus, methane bacteria, sarcina methanica,Methane capsule bacterium and methane hair on the neck bacterium etc.
In the preferred embodiment of the present invention, leavening used needs in advance through H2、CO、CH4And CO2Gaseous mixtureBody domestication is cultivated, and after domestication is cultivated, the fermentative microorganism in leavening can resistance to CO toxicity, and then can more be conducive to detestThe carrying out of aerobe fermentation.
The technological means for this area routine is cultivated in domestication of the present invention, and those skilled in the art can be according to sceneJob requirements, selects suitable method to tame cultivation to fermentative microorganism.
According to method of the present invention, the present invention does not do requirement to the consumption of leavening described in step c, this area skillArt personnel can need to add the leavening of suitable dose according to field operation in the second methanator, as long as can ensureCarrying out smoothly of anaerobic fermentation reaction is just passable.
According to method of the present invention, preferably, the hydrogen of external source described in step c and CH4And CO2Mist inCO2Volume ratio be 4:1.
According to method of the present invention, " CH in step c4And CO2Mist, external source H2And leavening mixes " beRealize by following operation: before reaction, first described leavening is loaded in the second methanator with at the second methaneChange the fermentative microorganism of enrichment high concentration in reactor, and then by CH4And CO2Mist, external source H2Pass into enrichmentIn the second methanator of high gravity fermentation microorganism, carry out anaerobic fermentation in-situ enrichment methane reaction.
The present invention also provides a kind of system of utilizing living beings to produce high-quality biological methane gas, and this system comprises biologyMatter storage tank, fixed-bed pyrolysis gasification reactor, gas raw material conveying device, the first methanator, the second methanation reactionDevice, external source hydrogen-holder and biological methane gas storage tank;
Described living beings storage tank is connected with the entrance of fixed-bed pyrolysis gasification reactor by pipeline, fixed-bed pyrolysis gasificationThe outlet of reactor is connected with the entrance of gas raw material conveying device by pipeline; The outlet of gas raw material conveying device is by pipeRoad is connected with the entrance of described the first methanator, the outlet of the first methanator by pipeline via external source hydrogenStorage tank is connected with the entrance of described the second methanator, and the outlet of the second methanator is by pipeline and biological methaneThe entrance of gas storage tank is connected.
According to system of the present invention, gas raw material conveying device used is the equipment of this area routine, at thisBright preferred embodiment in, described gas raw material conveying device is air pump.
According to system of the present invention, preferably, in described fixed-bed pyrolysis gasification reactor, be filled with charcoal,
More preferably the loadings of described charcoal is the 1/2-2/3 of fixed-bed pyrolysis gasification reactor cumulative volume.
According to system of the present invention, the first methanator used, the second methanator are completely mixedBox-like reactor (CSTR); The present invention not structure to above-mentioned complete mixing reactor (CSTR) etc. improves, abilityField technique personnel can need to select suitable complete mixing reactor (CSTR) for the present invention according to field operation,In system of the present invention, above-mentioned two complete mixing reactors (CSTR) are series relationship.
The invention provides one combines biomass pyrogenation gasification technology with anaerobic fermentation in-situ enrichment methane technologyTo realize the method for efficiently utilizing living beings to produce high-quality biological methane. The method comprises following concrete steps:
First powder or the particulate biomass process fixed biologically charcoal bed pyrolysis reactor in 10% left and right by water contentAfter pyrolytic gasification, produce calorific value and be about 11MJ/m3Gas raw material, the H that its component comprises 20-40v%2, 20-30v% CO,The CH of 10-20v%4CO with 20-30v%2, and most pyrolysis oil is by changing into combustible gas with reacting again of charcoalBody (H2And CO);
Secondly gas raw material is carried out after condensation, pass into the anaerobism that is rich in high gravity fermentation microorganism of having tamed in advance anti-Answer in device the H in gas raw material2、CO2Can be changed into CH by specific anaerobe with CO4And CO2, its reaction equation asShown in lower:
CO2+4H2→CH4+2H2OΔG0＝-130.7kJ/mol；
CO+H2O→H2+CO2ΔG0＝-20kJ/mol；
4CO+2H2O→CH4+3CO2ΔG0＝-53J/mol。
H in gas raw material2And CO2The microorganism contact corresponding with it, is become CH by microbial conversion4; In gas raw materialThe microorganism contact that CO is corresponding with it, is become H by microbial conversion2And CO2, then further changed into CH4; At the first methaneChange process anaerobism in-situ enrichment in reactor (mixing reactor completely, CSTR), in the gas of output, methane is 65-68v%,Carbon dioxide is 32-35v%;
By gained gas, together with being 4:1 with carbon dioxide volume ratio, external source hydrogen passes into the second methanation reaction againDevice (mixing reactor completely, CSTR), CO2With supplementary external source H2The microorganism contact corresponding with it further changed intoCH4, finally obtain the biological methane gas of high concentration.
Can obtain high-quality by the method for utilizing living beings to produce high-quality biological methane gas provided by the inventionBiological methane gas, its calorific value is higher than 31MJ/m3; In this biological methane gas, the volume fraction of methane is greater than 90%; And pass throughThe biological methane gas that method of the present invention obtains can obtain methane volume fraction through further processing (as membrane module is purified) againBe more than 97% biological methane gas, this biological methane gas can be used as vehicle fuel and makes after further compressing by compressor againWith.
The method and system of utilizing living beings to produce high-quality biological methane gas of the present invention have broken through traditional stalkLiving beings utilize technique, it combines pyrolytic gasification, anaerobism, methane in-situ enrichment technology, has realized the efficient of living beingsRecovery energy. The method high-efficiency and economic, without catalyst, can (be less than 3 days) by the biology of low value at short noticeMatter changes into the biological methane gas (methane volume fraction is more than 90%) of high-quality, and its substantially do not have accessory substance produce, afterContinuous only need simply processed, and the biological methane gas obtaining can be used as vehicle fuel.
Brief description of the drawings
Fig. 1 is the Technology Roadmap that utilizes living beings to produce the method for high-quality biological methane gas of the present invention;
Fig. 2 is the schematic diagram that utilizes living beings to produce the system of high-quality biological methane gas of the present invention;
Fig. 3 is the air inflow in the present invention's the first methanator and gas production temporal evolution pass under laboratory conditionThe figure of system;
Fig. 4 is the composition temporal evolution graph of a relation of the interior aerogenesis of the present invention's the first methanator under laboratory condition;
Fig. 5 is the air inflow in the present invention's the second methanator and gas production temporal evolution pass under laboratory conditionThe figure of system;
Fig. 6 is the composition temporal evolution graph of a relation of aerogenesis in the present invention's the second methanator;
In figure: steps A is the CH that the first methanator is obtained4And CO2Mist, external source H2(H2And CO2'sVolume ratio is 4:1) pass into the second methanator;
Step B passes into N2(anaerobic environment) is by the CO in the second vacant volume in methanator top2Remove; With rowExcept the impact of the gas retaining in reactor before again ventilating on experiment, readjust subsequently air inlet;
Fig. 7 is the pH temporal evolution of fermentation biogas liquid in the present invention's the first methanator, the second methanatorGraph of a relation;
Fig. 8 is the volatile fatty acid of fermentation biogas liquid in the present invention's the first methanator, the second methanator(VFA) temporal evolution graph of a relation;
Fig. 9 is that the basicity of fermentation biogas liquid in the present invention's the first methanator, the second methanator becomes in timeChange graph of a relation;
Figure 10 is microbial profile figure in the present invention's the first methanator;
Figure 11 is microbial profile figure in the present invention's the second methanator.
Main drawing reference numeral explanation:
Gas raw material conveying device-3 the first methanation of fixed-bed pyrolysis gasification reactor-2, living beings storage tank-1Reactor-4-1 the second methanator-4-2 external source hydrogen-holder-5 the first biological methane gas storage tank-6 secondBiological methane gas storage tank-7.
Detailed description of the invention
Understand for technical characterictic of the present invention, object and beneficial effect being had more clearly, existing to skill of the present inventionArt scheme is carried out following detailed description, but can not be interpreted as restriction that can practical range of the present invention.
Embodiment 1
The present embodiment provides a kind of system of utilizing living beings to produce high-quality biological methane gas, wherein, and this system bagDraw together:
Living beings storage tank 1, fixed-bed pyrolysis gasification reactor 2, gas raw material conveying device 3, the first methanator4-1, the second methanator 4-2, external source hydrogen-holder 5, the first biological methane gas storage tank 6 and the second biological methane gas storage tank7；
Described living beings storage tank 1 is connected with the entrance of fixed-bed pyrolysis gasification reactor 2 by pipeline, fixed-bed pyrolysis gasThe outlet of changing reactor 2 is connected with the entrance of gas raw material conveying device 3 by pipeline; The outlet of raw material conveying device 3 is passed throughPipeline is connected with the entrance of described the first methanator 4-1, the outlet of the first methanator 4-1 by pipeline viaExternal source hydrogen-holder 5 is connected with the entrance of described the second methanator 4-2, and the outlet of the second methanator 4-2 is logicalCross pipeline and be connected with the entrance of the first biological methane gas storage tank 6, the outlet of described the first biological methane gas storage tank 6 by pipeline withThe entrance of described the second biological methane gas storage tank 7 is connected,
Above-mentioned the first biological methane gas storage tank 6 is for storing the biological methane gas of methane volume fraction more than 90%, andTwo biological methane gas storage tanks 7 are for storing the biological methane gas of methane volume fraction more than 97%; This utilizes living beings to produceThe schematic diagram of the system of high-quality biological methane gas as shown in Figure 2.
In described fixed-bed pyrolysis gasification reactor, be filled with charcoal, the loadings of charcoal is fixed-bed pyrolysis gasificationThe 1/2-2/3 of reactor cumulative volume.
Embodiment 2
The present embodiment provides a kind of method of utilizing living beings to produce high-quality biological methane gas, and the method is by makingThe system providing with embodiment 1 realizes, and wherein, the Technology Roadmap of the method as shown in Figure 1, specifically comprises the following steps:
A, by living beings (as agricultural crop straw, forestry waste, energy-source plant etc.) by rubbing, the pretreatment step such as pulverizingAfter rapid, reduce particle diameter to 1-10mm, then pass into fixed-bed pyrolysis gasification reactor, at 850 DEG C, after pyrolysis 3h, obtain gas formerMaterial, solid carbon and bio oil, three's mass ratio is about 10:5:1, and the component of gas raw material comprises the H of 20-40v%2、20-The CO of 30v%, the CH of 10-20v%4CO with 20-30v%2, its gas yield is biomass material aerogenesis 700-per ton900m3；
B, every day are CO:H by each component ratio2:CH4:CO2The gas raw material of=30:35:15:20 (volume ratio) is according to sameThe amount of sample is passed in first methanator (CSTR1) of enrichment fermentative microorganism, and agitator speed is 400r/min, temperatureDegree is 37 DEG C, and the time of staying is 24h; After stable, collect output gas metering as shown in Figure 3, as can be seen from Figure 3,Air inflow is controlled at 325mL/L/d (implication of this unit is the air inflow of unit reactor volume every day), gas production average out to118mL/L/d, is up to 175mL/L/d; Record CH in output gas4Proportion average out to 67.0%, is up to 67.8%,CO2Proportion average out to 33.0%, gas composition over time as shown in Figure 4, as can be seen from Figure 4, CH4ContentSubstantially remain on 65-68v%, CO2Content remains on 32-35v% substantially;
C, again according to H2And CO2Volume ratio be the ratio of 4:1 add be passed into through being rich in of domestication after external source hydrogen specificIn the second methanator (CSTR2) of food producing hydrogen and methane bacterium, agitator speed is 400r/min, and temperature is 37 DEG C, stopsTime is 24h, after stable, pass into gas volume and output gas volume and measures as shown in Figure 5, as can be seen from Figure 5, realExecute step B stable after, average air inflow (summation of the gas production of the first methane reactor and external source amounts of hydrogen) is 328mL/L/D, is up to 520mL/L/d, and average gas production is 113.7mL/L/d, is up to 163mL/L/d; Record CH in output gas4InstituteAccounting example average out to 90.2%, is up to 91.8%, gas component temporal evolution as shown in Figure 6, as can be seen from Figure 6,CH4Content substantially remain on more than 90%.
The time dependent result of pH that records fermentation biogas liquid in the first methanator, the second methanator asShown in Fig. 7. As can be seen from Figure 7,, along with adding of external source hydrogen, the pH value in relative the first methanator constantly risesHeight, the pH value in the second methanator is but on a declining curve, this is because acid-producing bacteria activity is suppressed, methanogenActivity be reinforced.
Record the time dependent result of VFA of fermentation biogas liquid in the first methanator, the second methanatorAs shown in Figure 8. As can be seen from Figure 8, along with adding of external source hydrogen, the VFA content in relative the first methanatorIn rising trend, the VFA content in the second reactor but fluctuates up and down at 300mg/L, and this also shows that acid-producing bacteria activity is suppressed,Thereupon be that methanogen activity is reinforced.
Record the time dependent result of basicity of fermentation biogas liquid in the first methanator, the second methanatorAs shown in Figure 9. As can be seen from Figure 9, As time goes on, the basicity value in two methanators is larger from fluctuationTo tending to be steady slowly.
Microorganism population distributing in the first methanator, the second methanator as shown in Figure 10, Figure 11. FromIn Figure 10, Figure 11, can find out, fermentative microorganism is mainly wide ancient bacterium class microorganism, specifically comprise salt bacillus, methane bacteria,Sarcina methanica, methane capsule bacterium and methane hair on the neck bacterium etc.
Claims (10)
1. utilize living beings to produce a method for high-quality biological methane gas, wherein, the method comprises the following steps:
A, living beings are carried out to pyrolytic gasification reaction, obtain gas raw material, solid carbon and bio oil;
Taking the cumulative volume of gas raw material as 100%, the H that this gas raw material comprises 20-40v%2, 20-30v% CO, 10-The CH of 20v%4CO with 20-30v%2；
The mass ratio of preferred described gas raw material, solid carbon and bio oil is 10:5:1;
B, described gas raw material is mixed with leavening and carries out anaerobic fermentation in-situ enrichment methane reaction, obtain CH4And CO2MixedClose gas;
With CH4And CO2The cumulative volume of mist be 100%, described CH4And CO2Mist comprise 65-68v%'sCH4CO with 32-35v%2；
C, by described CH4And CO2Mist, external source H2And leavening mixes and carries out anaerobic fermentation in-situ enrichment methane reaction,Obtain described biological methane gas.
2. method according to claim 1, wherein, the reaction of pyrolytic gasification described in step a is to gasify at fixed-bed pyrolysisIn reactor, carry out, in described fixed-bed pyrolysis gasification reactor, be filled with charcoal;
Preferred described charcoal derives from biomass pyrogenation gasification and reacts the solid carbon obtaining;
Also the loadings of preferred described charcoal is the 1/2-2/3 of fixed-bed pyrolysis gasification reactor cumulative volume.
3. method according to claim 1 and 2, wherein, the reaction temperature of the reaction of pyrolytic gasification described in step a is 400-1000 DEG C, the reaction time is 0.1-3h.
4. method according to claim 1, wherein, the reaction of the in-situ enrichment of anaerobic fermentation described in step b methane reactionTemperature is 30-40 DEG C, and the time of staying is 0.1-48h;
The stirring intensity of preferred described anaerobic fermentation in-situ enrichment methane reaction is 50-400rpm.
5. according to the method described in claim 1 or 4, wherein, leavening described in step b is through H2、CO、CH4And CO2MixedClose the leavening after gas domestication is cultivated;
Preferably, with described H2、CO、CH4And CO2The cumulative volume of mist be 100%, this mist comprises 20v%CO2, the CO of 30v%, the CH of 15v%4And the H of 35v%2；
Also the time of preferred described domestication is 5-20d.
6. method according to claim 1, wherein, the reaction of the in-situ enrichment of anaerobic fermentation described in step c methane reactionTemperature is 30-40 DEG C, and the time of staying is 0.1-48h;
The stirring intensity of preferred described anaerobic fermentation in-situ enrichment methane reaction is 50-400rpm.
7. according to the method described in claim 1 or 6, wherein, leavening described in step c is through H2、CO、CH4And CO2MixedClose the leavening after gas domestication is cultivated;
Preferably, with described H2、CO、CH4And CO2The cumulative volume of mist be 100%, this mist comprises 20v%CO2, the CO of 30v%, the CH of 15v%4And the H of 35v%2；
Also the time of preferred described domestication is 5-20d.
8. according to the method described in claim 1,6 or 7 any one, wherein, the hydrogen of external source described in step c and CH4And CO2'sCO in mist2Volume ratio be 4:1.
9. utilize living beings to produce a system for high-quality biological methane gas, wherein, this system comprises living beings storage tank, fixingBed pyrolytic gasification reactor, gas raw material conveying device, the first methanator, the second methanator, external source hydrogenStorage tank and biological methane gas storage tank;
Described living beings storage tank is connected with the entrance of fixed-bed pyrolysis gasification reactor by pipeline, fixed-bed pyrolysis gasification reactionThe outlet of device is connected with the entrance of gas raw material conveying device by pipeline; The outlet of gas raw material conveying device by pipeline withThe entrance of described the first methanator is connected, the outlet of the first methanator by pipeline via external source hydrogen-holderBe connected with the entrance of described the second methanator, the outlet of the second methanator is by pipeline and the storage of biological methane gasThe entrance of tank is connected.
10. system according to claim 9, wherein, is filled with charcoal in described fixed-bed pyrolysis gasification reactor;
The loadings of preferred described charcoal is the 1/2-2/3 of fixed-bed pyrolysis gasification reactor cumulative volume.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107245435A (en) * | 2016-10-28 | 2017-10-13 | 王凯军 | A kind of apparatus and method of the difficult biochemical biochemical coupling methane phase of organic solid waste pyrolysis |
| CN107586805A (en) * | 2017-11-07 | 2018-01-16 | 临颍路得生物科技有限公司 | Comprehensively utilize five joint production process of biological straw |
| CN108265081A (en) * | 2018-01-24 | 2018-07-10 | 中国石油大学(北京) | A kind of simple method for producing high quality biological methane |
| CN108315357A (en) * | 2018-04-10 | 2018-07-24 | 中国华能集团清洁能源技术研究院有限公司 | The method and system of combustible are coupled using regenerative resource and biomass |
| CN110035974A (en) * | 2016-07-14 | 2019-07-19 | Zeg动力股份公司 | The method and apparatus that biogas upgrading is carried out by biomaterial anaerobic fermentation and produces hydrogen |
| CN111847671A (en) * | 2020-08-14 | 2020-10-30 | 中国石油大学(北京) | Bionic pilus honeycomb superstructure and preparation method and application thereof |
| CN113481089A (en) * | 2021-07-28 | 2021-10-08 | 河南财政金融学院 | Two-phase anaerobic fermentation system for improving methane content in biogas |
| CN115094093A (en) * | 2022-07-08 | 2022-09-23 | 滦南林海科技发展有限责任公司 | Zero-emission method for comprehensive utilization of gasification and anaerobic fermentation of branches and leaves of trees |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152599A (en) * | 2006-09-29 | 2008-04-02 | 沈习军 | Innocent treatment method and equipment for castoff high in containing water |
| CN201686689U (en) * | 2010-04-02 | 2010-12-29 | 刘兰 | Device adopted by biomass straw biogas preparation method |
| CN102533340A (en) * | 2011-12-15 | 2012-07-04 | 北京金骄生物质化工有限公司 | Method utilizing waste biomasses to prepare biogas |
| CN102786994A (en) * | 2012-07-25 | 2012-11-21 | 中国科学院广州能源研究所 | Method for preparing methane-rich gas through autocatalytic gasification of biomass |
| CN103087793A (en) * | 2011-10-31 | 2013-05-08 | 上海百沃思水处理科技有限公司 | Process for realizing natural gas preparation with coke oven gas by using anaerobic microbes |
| CN103113010A (en) * | 2013-02-01 | 2013-05-22 | 同济大学 | Method for synchronous implementation of methanation of coke oven gas and in-situ purification of marsh gas |
| CN204039347U (en) * | 2014-08-14 | 2014-12-24 | 北京神雾环境能源科技集团股份有限公司 | One way of life refuse pyrolysis comprehensive resource treatment system |
| CN104838006A (en) * | 2012-11-12 | 2015-08-12 | 朗泽科技新西兰有限公司 | Biomass liquefaction through gas fermentation |
-
2015
- 2015-11-13 CN CN201510778344.XA patent/CN105602999A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152599A (en) * | 2006-09-29 | 2008-04-02 | 沈习军 | Innocent treatment method and equipment for castoff high in containing water |
| CN201686689U (en) * | 2010-04-02 | 2010-12-29 | 刘兰 | Device adopted by biomass straw biogas preparation method |
| CN103087793A (en) * | 2011-10-31 | 2013-05-08 | 上海百沃思水处理科技有限公司 | Process for realizing natural gas preparation with coke oven gas by using anaerobic microbes |
| CN102533340A (en) * | 2011-12-15 | 2012-07-04 | 北京金骄生物质化工有限公司 | Method utilizing waste biomasses to prepare biogas |
| CN102786994A (en) * | 2012-07-25 | 2012-11-21 | 中国科学院广州能源研究所 | Method for preparing methane-rich gas through autocatalytic gasification of biomass |
| CN104838006A (en) * | 2012-11-12 | 2015-08-12 | 朗泽科技新西兰有限公司 | Biomass liquefaction through gas fermentation |
| CN103113010A (en) * | 2013-02-01 | 2013-05-22 | 同济大学 | Method for synchronous implementation of methanation of coke oven gas and in-situ purification of marsh gas |
| CN204039347U (en) * | 2014-08-14 | 2014-12-24 | 北京神雾环境能源科技集团股份有限公司 | One way of life refuse pyrolysis comprehensive resource treatment system |
Non-Patent Citations (2)
| Title |
|---|
| 卞文娟: "《环境工程实验》", 31 December 2011 * |
| 周建强: "《可再生能源利用技术》", 31 March 2015 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035974A (en) * | 2016-07-14 | 2019-07-19 | Zeg动力股份公司 | The method and apparatus that biogas upgrading is carried out by biomaterial anaerobic fermentation and produces hydrogen |
| CN107245435A (en) * | 2016-10-28 | 2017-10-13 | 王凯军 | A kind of apparatus and method of the difficult biochemical biochemical coupling methane phase of organic solid waste pyrolysis |
| CN107245435B (en) * | 2016-10-28 | 2024-04-30 | 王凯军 | Device and method for producing methane through pyrolysis-biochemical coupling of organic solid wastes difficult to biochemically produce |
| CN107586805A (en) * | 2017-11-07 | 2018-01-16 | 临颍路得生物科技有限公司 | Comprehensively utilize five joint production process of biological straw |
| CN108265081A (en) * | 2018-01-24 | 2018-07-10 | 中国石油大学(北京) | A kind of simple method for producing high quality biological methane |
| CN108315357A (en) * | 2018-04-10 | 2018-07-24 | 中国华能集团清洁能源技术研究院有限公司 | The method and system of combustible are coupled using regenerative resource and biomass |
| CN111847671A (en) * | 2020-08-14 | 2020-10-30 | 中国石油大学(北京) | Bionic pilus honeycomb superstructure and preparation method and application thereof |
| CN113481089A (en) * | 2021-07-28 | 2021-10-08 | 河南财政金融学院 | Two-phase anaerobic fermentation system for improving methane content in biogas |
| CN115094093A (en) * | 2022-07-08 | 2022-09-23 | 滦南林海科技发展有限责任公司 | Zero-emission method for comprehensive utilization of gasification and anaerobic fermentation of branches and leaves of trees |
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