CN109306279A - A kind of devices and methods therefor for biogas desulfurization dehydration - Google Patents
A kind of devices and methods therefor for biogas desulfurization dehydration Download PDFInfo
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- CN109306279A CN109306279A CN201811308734.0A CN201811308734A CN109306279A CN 109306279 A CN109306279 A CN 109306279A CN 201811308734 A CN201811308734 A CN 201811308734A CN 109306279 A CN109306279 A CN 109306279A
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- Prior art keywords
- biogas
- air inlet
- moisture trap
- water
- gas outlet
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 49
- 230000023556 desulfurization Effects 0.000 title claims abstract description 49
- 230000018044 dehydration Effects 0.000 title claims abstract description 35
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 59
- 239000007789 gas Substances 0.000 claims abstract description 58
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 14
- 230000008929 regeneration Effects 0.000 claims description 11
- 238000011069 regeneration method Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 239000005864 Sulphur Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 101100204059 Caenorhabditis elegans trap-2 gene Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- KAEAMHPPLLJBKF-UHFFFAOYSA-N iron(3+) sulfide Chemical compound [S-2].[S-2].[S-2].[Fe+3].[Fe+3] KAEAMHPPLLJBKF-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical class O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a kind of devices for biogas desulfurization dehydration, including water sealed tank, the first moisture trap, desulfurizing tower and the second moisture trap, the accommodating chamber for accommodating water is equipped in water sealed tank, water sealed tank upper end is equipped with water inlet, the first air inlet and the first gas outlet, and air inlet pipe one end connection methane-generating pit other end protrudes into accommodating chamber.First moisture trap can remove the moisture in biogas.Desulfurizing tower lower end is equipped with outlet valve and third air inlet upper end is equipped with third gas outlet, and third air inlet is connect with the second gas outlet.Second moisture trap upper end is equipped with the 4th air inlet and the 4th gas outlet lower end is equipped with the second drain valve.The invention has the benefit that the impurity such as steam, the hydrogen sulfide in biogas can be removed efficiently, effective operation of biogas generator is ensured, maintenance and the cost of upkeep for reducing biogas generator have many advantages, such as that high treating effect, process conditions are simple, secondary pollution is few and high financial profit.
Description
Technical field
The present invention relates to biogas power generation technology field, in particular to a kind of device and its side for biogas desulfurization dehydration
Method.
Background technique
Biogas is a kind of fuel gas with compared with high heating value, and main component is methane 55%-65%, carbon dioxide
The gases such as 35%-45% and a small amount of nitrogen, ammonia, hydrogen, oxygen, hydrogen sulfide and steam.Pig farm be reduce production cost and
The level of resources utilization is improved, most Large-scale pig farms handle waste using black film methane-generating pit, while efficient degradation waste water
Biogas is generated to be used to generate electricity.
Due to sulfide hydrogen and steam in biogas, after hydrogen sulfide enters Biogas Generator Set, not only to the spark of engine
The components such as plug, valve stem, cylinder sleeve, piston have corrosiveness, and can generate the polluted gas such as SO2 by burning.Biogas pipeline
Ponding causes engine charge pressure loss excessive, and the frequent chaser of generating set causes unit generation power to decline to a great extent and increase
Repair and maintenance cost is added.So the good operation in order to guarantee biogas generator, in addition to considering biogas desulfurization, it is also necessary to right
Biogas is carried out dehydrating.Therefore biogas carries out desulfurization to biogas before entering biogas generator, dehydration prevents hydrogen sulfide
The problem of becoming pig farm marsh gas power generation urgent need to resolve with steam damage equipment pollution environment.
Summary of the invention
The object of the present invention is to provide a kind of devices and methods therefors for biogas desulfurization dehydration, to solve the above problems.
According to an aspect of the invention, there is provided a kind of device for biogas desulfurization dehydration, including
Water sealed tank, the interior accommodating chamber being equipped with for accommodating water of water sealed tank, water sealed tank upper end is equipped with water inlet, for air inlet pipe
First air inlet of insertion and the first gas outlet flowed out for biogas, air inlet pipe one end connection methane-generating pit other end protrude into appearance
To receive intracavitary, water sealed tank lower end is equipped with water outlet, and water sealed tank can clean the foam and dirt that biogas is taken out of from black film methane-generating pit, and
Cooling effect can be played to medium and high temperature biogas, also acting as check valve action in the apparatus prevents from being tempered.And water sealed tank is adopted
Clear water, have many advantages, such as cost is relatively low, be easily changed with it is easy to operate, suitable for the pre- place before the biogas desulfurization of pig farm
Reason.
First moisture trap, the first moisture trap upper end are equipped with the second air inlet and the second gas outlet lower end equipped with the
One drain valve, the second air inlet are connect with the first gas outlet, and the first moisture trap can remove the moisture in biogas.
Desulfurizing tower, desulfurizing tower lower end is equipped with outlet valve and third air inlet upper end is equipped with third gas outlet, third air inlet
It is connect with the second gas outlet, desulfurizing tower can remove the hydrogen sulfide in biogas.
Second moisture trap, the second moisture trap upper end are equipped with the 4th air inlet and the 4th gas outlet lower end equipped with the
Two drain valves, the 4th air inlet are connect with third gas outlet, and the 4th gas outlet is connect with biogas generator, the second moisture trap
It can remove the condensed water formed in the process to the cold after biogas desulfurization.
In some embodiments, water sealed tank side is equipped with the liquidometer for observing water quantity.From there through the liquidometer
Can be convenient for SEA LEVEL VARIATION in observation tank, structure is simply easy to use.
In some embodiments, one end that air inlet pipe is located at accommodating chamber is equipped with up-small and down-big flare openings.Thus
Biogas can be made to come into full contact with clear water in water sealed tank, and then improve the cleaning efficiency to biogas.
In some embodiments, the first moisture trap and the second moisture trap inside two sides are equipped with shutter gear
Plate is equipped with metal mesh between louver type baffle.Since flow direction is varied multiple times in gas in separator, the water droplet of suspension has
Biggish quality and inertia.Therefore steam can be accumulated on baffle when encountering baffle flows direction and changing and be agglomerated, to fall on
The bottom of first moisture trap and the second moisture trap is flowed out by the first drain valve and the second drain valve.
In some embodiments, metal mesh is the metal mesh that aperture is not more than 0.15mm.Thus steam separation can be improved
Efficiency.
In some embodiments, it is provided with the packing layer for accommodating desulfurizing agent in desulfurizing tower, desulfurizing tower is equipped with pair
Should packing layer feed inlet and discharge port, be equipped with for making desulfurizer regeneration again at third air inlet and third gas outlet
Raw ventilation diffusion valve.Desulfurizing tower third air inlet and third gas outlet at setting regeneration ventilation diffusion valve, desulfurizing agent again
When raw, regeneration ventilation diffusion valve is opened, air is squeezed into desulfurizing tower with air pump, is kept in air speed in 20-40km/h, and every 2
A clock, alternate change airintake direction.By the regeneration to desulfurizing agent, reduce the operating cost of biogas desulfurization, has centainly
Economic value.
In some embodiments, desulfurizing agent is iron oxide, and desulfurizing tower can be by the iron oxide by the hydrogen sulfide in biogas
Become ironic sulfide thus by the removal of sulphur in biogas.
In some embodiments, gas flowmeter, gas stream are additionally provided between the 4th gas outlet and biogas generator
Amount is calculated as corrosion-resistant gas flowmeter.It is provided with gas flowmeter before the admission line into biogas generator, can measure every
Secondary biogas generator runs the methane quantity used, by the comparison of data can be natural pond in conjunction with the generated energy of biogas generator
Desulfurization, dehydration influence of the effect to biogas generator reference frame is provided.
A method of it is dehydrated for biogas desulfurization, comprising:
A removal of impurities, biogas flowed into water sealed tank by pipeline from black film methane-generating pit, and water in water sealed tank will carry in biogas
Foam and dirt are removed.
B is dehydrated for the first time: the biogas after flowing out out of water sealed tank is imported the first moisture trap, the first moisture trap
First time dehydration is carried out to biogas.
C desulfurization: desulfurizing tower will be imported by dewatered biogas for the first time, the filler for sulphur removal is equipped in desulfurizing tower
Layer, packing layer is interior to be equipped with desulfurizing agent.
Second of dehydration of D: the biogas flowed out in desulfurizing tower is imported into the second moisture trap, the second moisture trap is to natural pond
Gas carries out second and is dehydrated.
E metering: biogas generator is sent into after the biogas of the second moisture trap outflow is measured by gas flowmeter.
The invention has the benefit that the device of biogas desulfurization dehydration is provided with the first air water point before and after desulfurizing tower
From device and the second moisture trap.Biogas after water sealed tank purifies into containing water saturation, the natural pond after moisture trap before desulfurizing tower
Moisture in gas is down to optimum moisture content required for desulfurizing agent, so that the activity for improving desulfurizing agent improves its desulfurization effect.Natural pond
Gas goes out after desulfurizing tower forms condensed water since biogas temperature increases vapor contained therein to the cold, passes through the second gas-water separation
Device removes water it again, reduces the risk of blocking pipeline and valve, ensure that the normal operation of biogas generator.Therefore the natural pond
The device of desulfurization dehydration can efficiently remove the impurity such as steam, hydrogen sulfide in biogas, and ensured biogas generator has
Effect operation, reduces maintenance and the cost of upkeep of biogas generator, has that high treating effect, process conditions be simple, secondary pollution
Less, the advantages that high financial profit, suitable for the biogas desulfurization dehydration of Large-scale pig farm, the recycling benefit of biogas is realized
With.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of device for biogas desulfurization dehydration of one embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the water sealed tank of the device for biogas desulfurization dehydration shown in Fig. 1；
Fig. 3 is a kind of structural schematic diagram of first moisture trap of the device for biogas desulfurization dehydration shown in Fig. 1；
Fig. 4 is a kind of structural schematic diagram of the desulfurizing tower of the device for biogas desulfurization dehydration shown in Fig. 1.
Specific embodiment
The present invention is described in further detail by 1-4 with reference to the accompanying drawing.
As shown in Figure 1, a kind of device for biogas desulfurization dehydration, including
Water sealed tank 1, as shown in Fig. 2, being equipped with the accommodating chamber 1-6 for accommodating water in water sealed tank 1,1 upper end of water sealed tank is equipped with
Water inlet 1-4, the first air inlet for air inlet pipe 1-1 insertion and the first gas outlet 1-2 for biogas outflow, air inlet pipe
The one end 1-1 connection methane-generating pit other end protrudes into accommodating chamber 1-6, and 1 lower end of water sealed tank is equipped with water outlet 1-5, and water sealed tank 1 can be clear
Foam and dirt that biogas is taken out of from black film methane-generating pit are washed, and cooling effect can be played to medium and high temperature biogas, in the apparatus
Also acting as check valve action prevents from being tempered.And water sealed tank 1 is using clear water, has that cost is relatively low, is easily changed and operates
The advantages that facilitating, suitable for the pretreatment before the biogas desulfurization of pig farm.
First moisture trap 2, as shown in figure 3,2 upper end of the first moisture trap is equipped with the second air inlet 2-1 and second
The gas outlet lower end 2-2 is equipped with the first drain valve 2-5, and the second air inlet 2-1 is connect with the first gas outlet 1-2, the first gas-water separation
Device 2 can remove the moisture in biogas.Moisture after the first moisture trap 2 in biogas is down to required for desulfurizing agent most preferably
Water content, so that the activity for improving desulfurizing agent improves its desulfurization effect.
Desulfurizing tower 3, as shown in figure 4,3 lower end of desulfurizing tower is equipped with outlet valve 3-6 and the upper end third air inlet 3-2 is equipped with third
Gas outlet 3-3, third air inlet 3-2 are connect with the second gas outlet 2-2, and desulfurizing tower 3 can remove the hydrogen sulfide in biogas.Desulfurization
Tower 3 usually setting 2 or more, can be with serial or parallel connection or series-parallel combination.
Second moisture trap 5, the second moisture trap 5 is identical as 2 structure of the first moisture trap in the present embodiment,
Second moisture trap, 5 upper end is equipped with the 4th air inlet and the 4th gas outlet lower end and is equipped with the second drain valve, the 4th air inlet and
The 3-3 connection of third gas outlet, the 4th gas outlet are connect with biogas generator, after the second moisture trap 5 can remove biogas desulfurization
The condensed water formed during to the cold.
As shown in Figure 1, the device of biogas desulfurization dehydration is provided with 2 He of the first moisture trap before and after desulfurizing tower 3
Second moisture trap 5.Biogas is into containing water saturation after the purification of water sealed tank 1 before desulfurizing tower 3, after the first moisture trap 2
Moisture in biogas is down to optimum moisture content required for desulfurizing agent, so that the activity for improving desulfurizing agent improves its desulfurization effect.
Biogas goes out after desulfurizing tower 3 forms condensed water since biogas temperature increases vapor contained therein to the cold, passes through the second air water
Separator 5 removes water it again, reduces the risk of blocking pipeline and valve, ensure that the normal operation of biogas generator.Cause
The device of this biogas desulfurization dehydration can efficiently remove the impurity such as steam, hydrogen sulfide in biogas, ensure marsh gas power generation
Effective operation of machine reduces maintenance and the cost of upkeep of biogas generator, has high treating effect, process conditions letter mono-, di-
It is secondary pollution less, high financial profit the advantages that, suitable for the biogas desulfurization dehydration of Large-scale pig farm, realize the resource of biogas
Change and utilizes.
In the present embodiment, as shown in Fig. 2, 1 side of water sealed tank is equipped with the liquidometer 1-3 for observing water quantity.Thus lead to
Crossing liquidometer 1-3 can be easy to use convenient for SEA LEVEL VARIATION in observation tank.
In the present embodiment, as shown in Fig. 2, one end that air inlet pipe 1-1 is located at accommodating chamber 1-6 is equipped with up-small and down-big loudspeaker
Shaped opening.Biogas can thus come into full contact with clear water in water sealed tank 1, and then improves the cleaning efficiency to biogas.
In the present embodiment, as shown in figure 3, the first moisture trap 2 is equipped with 5 inside two sides of the second moisture trap
Metal mesh 2-4 is equipped between louver type baffle 2-3, louver type baffle 2-3.Since flowing side is varied multiple times in gas in separator
To the water droplet of suspension has biggish quality and inertia.Therefore steam can be accumulated in when encountering the flow direction baffle 2-3 and changing
It is agglomerated on baffle 2-3, to fall on the bottom of the first moisture trap 2 and the second moisture trap 5, passes through the first drain valve 2-
5 and second drain valve outflow.
In the present embodiment, metal mesh 2-4 is the metal mesh 2-4 that aperture is not more than 0.15mm.Thus steam point can be improved
From efficiency.
In the present embodiment, as shown in figure 4, being provided with the packing layer 3-1 for accommodating desulfurizing agent, desulfurization in desulfurizing tower 3
Tower 3 is equipped at the feed inlet 3-4 and discharge port 3-5 of corresponding packing layer 3-1, third air inlet 3-2 and third gas outlet 3-3
It is equipped with the regeneration ventilation diffusion valve 3-7 for making desulfurizer regeneration.In the third air inlet 3-2 and third outlet of desulfurizing tower 3
Setting regeneration ventilation diffusion valve 3-7 at mouth 3-3 is opened in desulfurizer regeneration and is regenerated ventilation diffusion valve 3-7, will be empty with air pump
Gas squeezes into 3 tower of desulfurizing tower, keeps in air speed in 20-40km/h, and every 2 clocks, alternate change airintake direction.Iron oxide desulfurization
After prolonged use, activity can constantly decline for agent, and if aperture therein is blocked by some impurity things, at this moment desulfurizing agent is just
It inactivates, but can be improved that its is desulphurizing activated in the presence of micro amount of oxygen when reaction system has, prolong the service life.By to desulfurizing agent
Regeneration, reduces the operating cost of biogas desulfurization, has certain economic value.
In the present embodiment, desulfurizing agent is iron oxide, and desulfurizing tower 3 can be become the hydrogen sulfide in biogas by the iron oxide
Ironic sulfide is thus by the removal of sulphur in biogas.
In the present embodiment, as shown in Figure 1, being additionally provided with gas flowmeter 4 between the 4th gas outlet and biogas generator,
Gas flowmeter 4 is corrosion-resistant gas flowmeter 4.Gas flowmeter is provided with before the road air inlet pipe 1-1 into biogas generator
4, the methane quantity that each biogas generator operation uses can be measured and pass through data in conjunction with the generated energy of biogas generator
Comparison can provide reference frame for influence of the effect to biogas generator of biogas desulfurization, dehydration.
A method of it is dehydrated for biogas desulfurization, comprising:
A removal of impurities, biogas are flowed into water sealed tank 1 by pipeline from black film methane-generating pit, will be in biogas by the water in water sealed tank 1
The foam and dirt of carrying are removed.
B is dehydrated for the first time: the biogas after flowing out out of water sealed tank 1 is imported the first moisture trap 2, the first gas-water separation
Device 2 carries out first time dehydration to biogas.The moisture in biogas is removed, subsequent processing pressure is reduced.
C desulfurization: desulfurizing tower 3 will be imported by dewatered biogas for the first time, the filler for sulphur removal is equipped in desulfurizing tower 3
Desulfurizing agent is equipped in layer 3-1, packing layer 3-1.Desulfurizing agent is iron oxide in the present embodiment, and biogas is from bottom to top from packing layer 3-
1 passes through, and activated ferric oxide is contacted with the H2S in biogas generates Fe2S3, and then removes the sulphur in biogas.
Second of dehydration of D: the biogas flowed out in desulfurizing tower 3 is imported into the second moisture trap 5, the second moisture trap 5
Second is carried out to biogas to be dehydrated.Remove biogas desulfurization after to the cold during formed condensed water, avoid moisture blocking pipeline and
Valve.
E metering: biogas generator is sent into after the biogas that the second moisture trap 5 flows out is measured by gas flowmeter 4.
Above-described is only some embodiments of the present invention, for those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (9)
1. a kind of device for biogas desulfurization dehydration, which is characterized in that including
Water sealed tank, is equipped with the accommodating chamber for accommodating water in the water sealed tank, the water sealed tank upper end be equipped with water inlet, for into
First air inlet of tracheae insertion and the first gas outlet flowed out for biogas, air inlet pipe one end connection methane-generating pit are another
End is protruded into the accommodating chamber, and the water sealed tank lower end is equipped with water outlet, and the water sealed tank can remove the foam carried in biogas
And dirt；
First moisture trap, first moisture trap upper end are equipped with the second air inlet and the second gas outlet lower end equipped with the
One drain valve, second air inlet are connect with first gas outlet, and first moisture trap can remove in biogas
Moisture；
Desulfurizing tower, the desulfurizing tower lower end are equipped with outlet valve and third air inlet upper end and are equipped with third gas outlet, the third into
Port is connect with second gas outlet, and the desulfurizing tower can remove the hydrogen sulfide in biogas；
Second moisture trap, second moisture trap upper end are equipped with the 4th air inlet and the 4th gas outlet lower end equipped with the
Two drain valves, the 4th air inlet are connect with third gas outlet, and the 4th gas outlet is connect with biogas generator, and described
Two moisture traps can remove the condensed water formed in the process to the cold after biogas desulfurization.
2. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that the water sealed tank side
Equipped with the liquidometer for observing water quantity.
3. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that the air inlet pipe is located at
One end of accommodating chamber is equipped with up-small and down-big flare openings.
4. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that first air water point
It is equipped with louver type baffle from two sides inside device and the second moisture trap, is equipped with metal mesh between the louver type baffle.
5. a kind of device for biogas desulfurization dehydration according to claim 4, which is characterized in that the metal mesh is hole
Diameter is not more than the metal mesh of 0.15mm.
6. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that set in the desulfurizing tower
It is equipped with the packing layer for accommodating desulfurizing agent, the desulfurizing tower is equipped with the feed inlet and discharge port of the corresponding packing layer, described
The regeneration ventilation diffusion valve for making desulfurizer regeneration is equipped at third air inlet and third gas outlet.
7. a kind of device for biogas desulfurization dehydration according to claim 6, which is characterized in that the desulfurizing agent is oxygen
Change iron, the hydrogen sulfide in biogas can be become ironic sulfide by the iron oxide to go the sulphur in biogas by the desulfurizing tower
It removes.
8. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that the 4th gas outlet
Gas flowmeter is additionally provided between biogas generator, the gas flow is calculated as corrosion-resistant gas flowmeter.
9. a kind of method for biogas desulfurization dehydration characterized by comprising
A removal of impurities, biogas flowed into water sealed tank by pipeline from black film methane-generating pit, and water in the water sealed tank will carry in biogas
Foam and dirt are removed；
B is dehydrated for the first time: the biogas after flowing out out of water sealed tank is imported the first moisture trap, first moisture trap
First time dehydration is carried out to biogas；
C desulfurization: desulfurizing tower will be imported by dewatered biogas for the first time, the filler for sulphur removal is equipped in the desulfurizing tower
Layer, described filler layer is interior to be equipped with desulfurizing agent；
Second of dehydration of D: the biogas flowed out in desulfurizing tower is imported into the second moisture trap, second moisture trap is to natural pond
Gas carries out second and is dehydrated；
E metering: biogas generator is sent into after the biogas of the second moisture trap outflow is measured by gas flowmeter.
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