CN104772002A - Biogas purifier - Google Patents
Biogas purifier Download PDFInfo
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- CN104772002A CN104772002A CN201510081929.6A CN201510081929A CN104772002A CN 104772002 A CN104772002 A CN 104772002A CN 201510081929 A CN201510081929 A CN 201510081929A CN 104772002 A CN104772002 A CN 104772002A
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Abstract
The invention discloses a biogas purifier, which belongs to the field of biogas purification. The biogas purifier comprises a body, a purifying filter, at least one air inlet and at least one air outlet. The body is a sealed hollow tower body; the purifying filter is arranged in the body and tightly connected with the inner wall of the body, and comprises at least two types of adsorption filter layers; the air inlet is arranged on the body, and pressurized biogas is input into the body through the air inlet; and the air outlet is arranged on the body and used for discharging biogas purified by the purifying filter. According to the invention, a physical adsorption method is used for purifying the pressurized biogas; no chemical reagent is added; no waste is produced during purifying; a better biogas purifying effect is obtained; operation is simple; energy consumption is reduced; and cost is saved.
Description
Technical field
The present invention relates to field of gas purification, particularly relate to a kind of methane purifying device.
Background technology
Biogas be organic substance under anaerobic, undergo microbial fermentation generate a kind of mist.Biogas by 50%-80% methane, 20%-40% carbon dioxide, 0%-5% nitrogen, be less than 1% hydrogen, be less than 0.4% oxygen and 0.1%-3% hydrogen sulfide and a small amount of water etc. form.Because the activity of the hydrogen sulfide in biogas is comparatively strong, compressor, pipeline, engine etc. usually can be made to be corroded, and to cause catalyst poisoning.And the carbon dioxide in biogas makes the energy density of biogas reduce, and slow down burning velocity.In addition, if the water in biogas accumulates the corrosion pipeline in the guide pipeline meeting sour gas such as dissolved carbon dioxide and hydrogen sulfide.Therefore, whether biogas can be whether the foreign gases such as water, carbon dioxide and hydrogen sulfide in biogas remove by key application.
But, the current existing methane purifying device that can remove the foreign gases such as water, carbon dioxide and hydrogen sulfide, often adopt the mode that dehydration, decarburization, desulfurization progressively remove respectively, marsh gas purifying needs through three cover cleaning equipments, process structure is complicated, and equipment is more, and cost of investment is high, floor space is large, is not suitable for little miniature biogas engineering.
Although integral type methane purifying device can solve the complicated problem of traditional methane purifying device, these devices mainly adopt alkali wash or condensation method to carry out purifying biogas.But, alkali wash needs, add in biogas water collector and account for water collector volume 50%-70% sodium hydroxide solution, utilize the mode purifying biogas of NaOH alkali cleaning, alkali cleaning dehydrating effect is poor, there is the problem of recycling difficulty in NaOH, and has certain potential safety hazard in the use procedure of high-concentration alkali liquor.And condensation method often needs temperature in reaction tower to be down to-35 ~-55 DEG C, pressure is increased to 15-25Bar, and energy consumption is higher, and technological process is comparatively complicated, is not suitable for little miniature biogas engineering equally.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of methane purifying device, and for methane purifying device marsh gas purifying weak effect in the past, purification process needs to add chemical reagent, produces discarded object and is unfavorable for environmental protection; Cleaning equipment is complicated, and technological process is complicated, and consume energy high, cost is high, is not suitable for the technical problem of medium and small miniature biogas engineering.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
Comprise according to a kind of methane purifying device provided by the invention: body, polishing filter, at least one air inlet and at least one air outlet; Body is sealed hollow tower body; Polishing filter to be arranged in body and with inner body wall close proximity, polishing filter comprises at least two kinds of adsorption filtration layers; Air inlet is arranged on body, and the biogas after pressurization inputs body interior by air inlet; Air outlet is arranged on body, for discharging the biogas after polishing filter purification.
Preferably, device also comprises gas diverter; Gas diverter is arranged between air inlet and polishing filter; The inwall close proximity of gas diverter and body; Biogas, after the shunting of gas diverter, enters polishing filter.
Further, gas diverter comprises: ventilating board, screen pack and gas dispersing layer; Screen pack is arranged between ventilating board and gas dispersing layer; Ventilating board is distributed with air vent.
Further, the cross section of ventilating board linearly or curve.
Further, in gas dispersing layer, be provided with filler, for disperseing the biogas entered.
Preferably, adsorption filtration layer is provided with sorbing material; Separation net is provided with between adsorption filtration layer; Separation net is used for isolating sorbing material, enables each adsorption filtration layer independently complete adsorption process.
Further, adsorption filtration layer comprises: dehydration layer, decarburized layer, desulfurization layer, dehydration decarburized layer, dehydration desulfurization layer, decarbonization, desulfuration layer or dehydration decarbonization, desulfuration layer.
Further, when adsorption filtration layer is for dehydration layer, at least one in activated alumina, silica gel, active carbon or 4A molecular sieve, 5A molecular sieve, 13X molecular sieve and 13XAPG molecular sieve selected by sorbing material; When adsorption filtration layer is decarburized layer, at least one in 10X molecular sieve, 13X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area and reaming carbon molecular sieve selected by sorbing material; When adsorption filtration layer is desulfurization layer, at least one in 5A molecular sieve, 10X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area, modified activated carbon, modified molecular screen and modified aluminas selected by sorbing material; When adsorption filtration layer is for dehydration decarburized layer, at least one in 13X molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon selected by sorbing material; When adsorption filtration layer is for dehydration desulfurization layer, at least one in 5A molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon selected by sorbing material; When adsorption filtration layer is decarbonization, desulfuration layer, at least one in 10X molecular sieve, 13XAPG molecular sieve, active carbon and active carbon with high specific surface area selected by sorbing material; When adsorption filtration layer is for dehydration decarbonization, desulfuration layer, at least one in carbon modified molecular sieve or activated silica gel, 13XAPG molecular sieve and active carbon selected by sorbing material.
Preferably, device also comprises: the sewage draining exit being arranged at body bottom portion, and sewage draining exit is used for discharging the discarded object of body interior.
Preferably, device also comprises: be arranged at the discharge port on body.
Beneficial effect of the present invention is: the methane purifying device of the embodiment of the present invention, by arranging polishing filter in the body of methane purifying device, the biogas of pressurization input body is through polishing filter, produce physisorption with the sorbing material be filled in polishing filter, remove the impurity such as hydrogen sulfide, carbon dioxide and water.The present invention adopts physical adsorption process to purify the biogas after pressurization, and do not need to add chemical reagent, purification process produces without discarded object, and marsh gas purifying effect is good, easy and simple to handle, reduces energy consumption, saves cost.
Accompanying drawing explanation
The methane purifying device structure sectional view that Fig. 1 provides for the embodiment of the present invention;
The methane purifying device gas diverter structural representation that Fig. 2 provides for the preferred embodiment of the present invention;
Fig. 3 is a preferred embodiment methane purifying device structure sectional view provided by the invention.
Detailed description of the invention
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly, understand, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The methane purifying device conveniently provided the present embodiment, the understanding of method and system, be described in detail to its operation principle below in conjunction with accompanying drawing.
A kind of methane purifying device that the embodiment of the present invention provides, as shown in Figure 1, the methane purifying device structure sectional view that Fig. 1 provides for the embodiment of the present invention, this methane purifying device shown comprises: body 1, polishing filter 2, at least one air inlet 3 and at least one air outlet 4; Body 1 is sealed hollow tower body; Polishing filter 2 to be arranged in body 1 and with body 1 inwall close proximity, polishing filter 2 comprises at least two kinds of adsorption filtration layers 21; Air inlet 3 is arranged on body 1, and it is inner that the biogas after pressurization inputs body 1 by air inlet 3; Air outlet 4 is arranged on body 1, for discharging the biogas after polishing filter 2 purifies.Preferably, the tower body type of body 1 is the capsule-type tower body shape erect, and also can be other tower body shapes.
Polishing filter 2 is filled in body 1 tower, and be arranged between air inlet 3 and air outlet 4, and polishing filter 2 and body 1 inwall close proximity, prevent biogas from passing through from the space between polishing filter 2 and body 1 inwall and causing the effect of the purifying marsh gas of methane purifying device to reduce.The biogas of pressurization input exports from air outlet 4 after polishing filter 2.Polishing filter 2 arranges at least two kinds of adsorption filtration layers 21, is filled with sorbing material in each adsorption filtration layer 21, for adsorbing the impurity existed in biogas.Wherein, the impurity in filtering biogas required for methane purifying device comprises water, carbon dioxide and hydrogen sulfide.Different for the dopant species that may contain in biogas, select different types of sorbing material and combination thereof to be filled in adsorption filtration layer 21; Content for often kind of impurity contained by biogas is different, determines the content of the sorbing material that each adsorption filtration layer 21 is filled, the thickness of setting adsorption filtration layer 21.
With reference to Fig. 1, air inlet 3 is arranged at the bottom of body 1 in the present embodiment, air outlet 4 is arranged at the top of body 1, biogas carries out pressurized treatments input methane purifying device in advance and has certain speed, therefore the density size of biogas self is not considered, air inlet 3 is set and is not limited to the position shown in this specific embodiment, optional position on methane purifying device body 1 can be arranged at.Corresponding, air outlet 4 is also not limited to the position in this specific embodiment, can be arranged at optional position on methane purifying device body 1.Air outlet 4 is for discharging the biogas after polishing filter clean 2 is changed.The position relationship that above-mentioned air inlet 3 and above-mentioned air outlet 4 are arranged on body 1 can realize, and the gas entering body 1 from air inlet 3 is discharged from air outlet 4 after polishing filter 2 again.
As a kind of preferred embodiment, body 1 inside is also provided with gas diverter 5.Gas diverter 5 is arranged between air inlet 3 and polishing filter 2, realizes after gas diverter 5 is shunted, entering polishing filter 2 from the biogas of air inlet 3 pressurization input.Gas diverter 5 and the inwall close proximity of body 1, prevent biogas from passing through from the space between gas diverter 5 and body 1 inwall, affect the shunting effect of biogas thus cause biogas to contact not exclusively with the sorbing material in polishing filter 2.The biogas of gas diverter 5 to input body 1 is shunted, and makes the biogas after shunting enter polishing filter 2 gently.
With reference to the methane purifying device gas diverter structural representation that Fig. 2, Fig. 2 provide for the preferred embodiment of the present invention, gas diverter comprises ventilating board 51, screen pack 52 and gas dispersing layer 53.Screen pack 52 is arranged between ventilating board 51 and gas dispersing layer 53.Ventilating board 51 is distributed with air vent 511.The cross section of ventilating board 51 linearly or curve.Filler is provided with, for disperseing the biogas entered in gas dispersing layer 53.
Ventilating board 51 is distributed with air vent 511, the cross section of ventilating board 51 linearly or curve.Preferably, when the cross section of ventilating board 51 is straight line, ventilating board 51 is laid on screen pack 52 and gas dispersing layer 53, is conducive to saving space in body 1.Preferably, when the cross section of ventilating board 51 is curve, the curved surface of ventilating board 51 provides at least one biogas to divide flow path direction.The material that ventilating board 51 can have certain supporting degree for metal material, synthetic material, ceramic material etc. is made.Preferably, can select and not easily be made ventilating board 51 by the flexible metal materials of sour corrosion.
Screen pack 52 is arranged between ventilating board 51 and gas dispersing layer 53, enters in polishing filter 2 for preventing the filler in airflow entrainment gas dispersing layer 53.Screen pack 52 has preliminary effect of filtering for the biogas entered from air inlet 3, stops entrained solids impurity and particle in biogas, operative liquid water can also be stoped to enter in polishing filter 2.Screen pack 52 can be made up alone or in combination of materials such as metal material, stainless steel cloth, nonwoven web, glass web, chemical fibre classes.
Filler is provided with, for disperseing the biogas entering gas diverter in gas dispersing layer 53.The filler of the gas dispersing layer 53 in gas diverter 5 can be chemical filler, chemical filler can select at least one in ceramic packing, plastic filler or metal packing, and biogas reaches the effect of dispersion flows by the space between filler various in gas dispersing layer 53 and plays the object of preliminary impurity screening.Preferably, above-mentioned chemical filler can select at least one in particulate filler, cellular or corrugated plate shape filler, spherical light ceramic and irregular porous aggregate.
The filler of biogas in gas dispersing layer 53 of pressurization input is subject to resistance, changes original flow direction, biogas is passed from the space between filler and spreads at least one direction, reach the effect of dispersion biogas.Biogas by after gas dispersing layer 53 through screen pack 52, prevent airflow entrainment filler and stop operative liquid water, and preliminary effect of filtering is played to the impurity such as solid impurity, particle.Biogas through screen pack 52 enters polishing filter 2 by passage 511 discharge on ventilating board 51.The biogas disperseed by gas dispersing layer 53 realizes the effect of shunting biogas further by the passage 511 on ventilating board 51, make biogas more evenly enter polishing filter 2.
As a kind of preferred embodiment, in the lump with reference to Fig. 1 and Fig. 3, polishing filter 2 comprises at least two kinds of adsorption filtration layers 21.Adsorption filtration layer 21 is provided with sorbing material.Be provided with separation net 211 ＇ between adsorption filtration layer, separation net 211 ＇ is used for isolating sorbing material, makes each adsorption filtration layer 21 independently can complete adsorption process.Separation net 211 ＇ also can be used for preventing airflow entrainment solid impurity and particle from discharging polishing filter 2, stop portions aqueous water, can make that the process of the sorbing material in handling each adsorption filtration layer is separate carries out.Separation net 211 ＇ can be made up alone or in combination of materials such as metal material, stainless steel cloth, nonwoven web, glass web, chemical fibre classes.
The kind of adsorption filtration layer 21 comprises dehydration layer, decarburized layer, desulfurization layer, dehydration decarburized layer, dehydration desulfurization layer, decarbonization, desulfuration layer and dehydration decarbonization, desulfuration layer.According to the difference of adsorption filtration layer 21 kind, the sorbing material that Selective filling is different.When adsorption filtration layer 21 is for dehydration layer, at least one in activated alumina, silica gel, active carbon or 4A molecular sieve, 5A molecular sieve, 13X molecular sieve and 13XAPG molecular sieve selected by sorbing material; When adsorption filtration layer 21 is decarburized layer, at least one in 10X molecular sieve, 13X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area and reaming carbon molecular sieve selected by sorbing material; When adsorption filtration layer 21 is for desulfurization layer, at least one in 5A molecular sieve, 10X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area, modified activated carbon, modified molecular screen and modified aluminas selected by sorbing material; When adsorption filtration layer 21 is for dehydration decarburized layer, at least one in 13X molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon selected by sorbing material; When adsorption filtration layer 21 is for dehydration desulfurization layer, at least one in 5A molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon selected by sorbing material; When adsorption filtration layer 21 is decarbonization, desulfuration layer, at least one in 10X molecular sieve, 13XAPG molecular sieve, active carbon and active carbon with high specific surface area selected by sorbing material; When adsorption filtration layer 21 is for dehydration decarbonization, desulfuration layer, at least one in carbon modified molecular sieve or activated silica gel, 13XAPG molecular sieve and active carbon selected by sorbing material.
This methane purifying device is due to its vibrational power flow, the biogas of pressurization input body 1 enters polishing filter 2 through gas diverter 5 shunting, with in polishing filter 2 be filled in each adsorption filtration layer 21 sorbing material produce physisorption, remove the impurity such as hydrogen sulfide, carbon dioxide and water.Can realize arranging different adsorption filtration layer 21 according to different biogas composition, save sorbing material cost.The present invention adopts physical adsorption process to purify the biogas after pressurization, and do not need to add chemical reagent, purification process produces without discarded object, and marsh gas purifying effect is good, easy and simple to handle, reduces energy consumption, saves cost.
There is provided a kind of preferred embodiment, as shown in Figure 3, Fig. 3 is a preferred embodiment methane purifying device structure sectional view provided by the invention.Methane purifying device comprises body 1 ＇, polishing filter 2 ＇, an air inlet 3 ＇ and air outlet 4 ＇.Polishing filter 2 ＇ to be arranged in body 1 ＇ and with body 1 ＇ inwall close proximity.Polishing filter 2 ＇ arranges four kinds of adsorption filtration layer 21 ＇, dehydration layer, decarburized layer, desulfurization layer and dehydration decarbonization, desulfuration layer.Air inlet 3 ＇ is arranged at bottom body 1 ＇, and it is inner that the biogas after pressurization inputs body 1 ＇ by air inlet 3 ＇; Air outlet 4 ＇ is arranged at body 1 ＇ top, for discharging the biogas after polishing filter 2 ＇ purifies.Gas diverter 5 ＇ is also provided with between air inlet 3 ＇ and polishing filter 2 ＇.
As a kind of preferred embodiment, the kind of adsorption filtration layer 21 ＇ arranged in polishing filter 2 ＇ has dehydration layer, decarburized layer, desulfurization layer and dehydration decarbonization, desulfuration layer.
Wherein, the sorbing material that the layer that dewaters is selected is at least one in activated alumina, silica gel, active carbon or 4A molecular sieve, 5A molecular sieve, 13X molecular sieve and 13XAPG molecular sieve.Preferably, the volume of dehydration layer accounts for the 30%-50% of polishing filter 2 ＇ volume.The adsorbent of filling in dehydration adsorption filtration layer has strong adsorptivity to water, the water therefore dewatered in layer primary attachment biogas, can most of water, partial CO 2 and a small amount of hydrogen sulfide in imurity-removal.
The sorbing material that decarburized layer is selected is at least one in 10X molecular sieve, 13X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area and reaming carbon molecular sieve.Preferably, the volume of desulfurization layer accounts for the 20%-30% of polishing filter 2 ＇ volume.Carbon dioxide in decarburized layer primary attachment biogas, can most of carbon dioxide, part water and partial vulcanization hydrogen in imurity-removal.
The sorbing material that desulfurization layer is selected is at least one in 5A molecular sieve, 10X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area, modified activated carbon, modified molecular screen and modified aluminas.Preferably, the volume of desulfurization layer accounts for the 5%-10% of polishing filter 2 ＇ volume.Hydrogen sulfide in desulfurization layer primary attachment biogas, can most of hydrogen sulfide, part water and partial CO 2 in imurity-removal.
The sorbing material that dehydration decarbonization, desulfuration layer is selected is at least one in carbon modified molecular sieve or activated silica gel, 13XAPG molecular sieve and active carbon.Dehydration decarbonization, desulfuration layer all has adsorptivity to the water of hybrid, carbon dioxide and hydrogen sulfide.Preferably, the volume of dehydration decarbonization, desulfuration layer accounts for the 10%-30% of polishing filter 2 ＇ volume.
As a kind of preferred embodiment, as shown in Figure 3, the cross section of ventilating board 51 ＇ of gas diverter 5 ＇ is curve, and the curved-surface structure of ventilating board 51 ＇ can provide at least one point of flow path direction.The scope that biogas is spread by ventilating board 51 ＇ shown in Fig. 3 is larger, is conducive to biogas and contacts more fully with the sorbing material in polishing filter 2 ＇ and reach more clean-up effect.
As a kind of preferred embodiment, as shown in Figure 3, methane purifying device also comprises sewage draining exit 6 ＇.Sewage draining exit 6 ＇ is arranged at bottom body 1 ＇, for discharging the discarded object of body 1 ＇ inside.Biogas enters body 1 ＇ from air inlet 3 ＇, and through air distributor 5 ＇ and polishing filter 2 ＇, the solid impurity in biogas, particle and operative liquid water are deposited in bottom body 1 ＇ by stop, discharges by this sewage draining exit 6 ＇.Biogas is gathered in bottom body 1 ＇ through the water that adsorption filtration layer 21 ＇ removes, and also discharges by this sewage draining exit 6 ＇.
As a kind of preferred embodiment, methane purifying device also comprises discharge port 7 ＇.Discharge port 7 ＇ is arranged on body 1 ＇ body wall, and as shown in Figure 3, the quantity of discharge port 7 ＇ has 2, and one of them discharge port 7 ＇ is arranged at body 1 ＇ top, and another discharge port 7 ＇ is arranged at bottom body 1 ＇.Discharge port 7 ＇ is for replacing the sorbing material of inactivation in each adsorption filtration layer 21 ＇, also can be used for the filler replaced in gas dispersing layer 53 ＇ of gas diverter 5 ＇, and can as the passway manually probeing into methane purifying device and carry out changing, keeping in repair each materials and structures of body 1 ＇ inside.Discharge port 7 ＇ can also as the passway of cleaning methane purifying device body 1 ＇ inside.Preferably, discharge port 7 ＇ can the position of corresponding each above-mentioned adsorption filtration layer 21 ＇ be arranged on body 1 ＇ body wall, is convenient to independently change for the sorbing material of different adsorption filtration layer 21 ＇.Preferably, discharge port can the position of corresponding above-mentioned gas current divider be arranged on body 1 ＇ body wall, is convenient to replace the filler in gas dispersing layer 53 ＇.
This methane purifying device is due to its vibrational power flow, the biogas of pressurization input body 1 ＇ enters polishing filter 2 ＇ through gas diverter 5 ＇ shunting, with in polishing filter 2 ＇ be filled in the layer that dewaters, decarburized layer, desulfurization layer and the decarbonization, desulfuration layer that dewaters sorbing material produce physisorption, remove the impurity such as hydrogen sulfide, carbon dioxide and water.The present invention adopts physical adsorption process to purify the biogas after pressurization, and do not need to add chemical reagent, purification process produces without discarded object, and marsh gas purifying effect is good, easy and simple to handle, reduces energy consumption, saves cost.
There is provided a kind of preferred embodiment, when in biogas impurity, water content is more, when more than hydrogen sulfide content is secondary, carbon dioxide content is less, the adsorption filtration layer 21 in polishing filter 2 is set to dehydration layer and dehydration desulfurization layer.Wherein, the sorbing material that the layer that dewaters is selected is at least one in activated alumina, silica gel, active carbon or 4A molecular sieve, 5A molecular sieve, 13X molecular sieve and 13XAPG molecular sieve.The sorbing material that dehydration desulfurization layer is selected is at least one in 5A molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon.Biogas is after dehydration layer and dehydration desulfurization layer, and the impurity in biogas is removed the object reaching purifying marsh gas.
The biogas passing into this methane purifying device by polishing filter 2 be filled in dehydration layer and dehydration desulfurization layer sorbing material produce physisorption, remove the impurity such as hydrogen sulfide, carbon dioxide and water and reach clean-up effect, save sorbing material cost.The present invention adopts physical adsorption process to purify the biogas after pressurization, and do not need to add chemical reagent, purification process produces without discarded object, and marsh gas purifying effect is good, easy and simple to handle, reduces energy consumption, saves cost.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the invention is intended to also to comprise these and change and modification.
Above with reference to illustrating the preferred embodiments of the present invention, not thereby limit to interest field of the present invention.Those skilled in the art do not depart from the scope of the present invention and essence, and multiple flexible program can be had to realize the present invention, and the feature such as an embodiment can be used for another embodiment and obtains another embodiment.All use do within technical conceive of the present invention any amendment, equivalently replace and improve, all should within interest field of the present invention.
Claims (10)
1. a methane purifying device, is characterized in that, this device comprises:
Body, polishing filter, at least one air inlet and at least one air outlet;
Described body is sealed hollow tower body;
Described polishing filter to be arranged in described body and with described inner body wall close proximity, described polishing filter comprises at least two kinds of adsorption filtration layers;
Described air inlet is arranged on described body, and the biogas after pressurization inputs described body interior by described air inlet;
Described air outlet is arranged on described body, for discharging the biogas after described polishing filter purification.
2. methane purifying device according to claim 1, is characterized in that, described device also comprises gas diverter;
Described gas diverter is arranged between described air inlet and described polishing filter;
The inwall close proximity of described gas diverter and described body;
Biogas, after the shunting of described gas diverter, enters described polishing filter.
3. methane purifying device according to claim 2, is characterized in that, described gas diverter comprises:
Ventilating board, screen pack and gas dispersing layer;
Described screen pack is arranged between described ventilating board and described gas dispersing layer;
Described ventilating board is distributed with air vent.
4. methane purifying device according to claim 3, is characterized in that, the cross section of described ventilating board linearly or curve.
5. methane purifying device according to claim 3, is characterized in that, is provided with filler in described gas dispersing layer, for disperseing the biogas entered.
6. the methane purifying device according to any one of claim 1-5, is characterized in that, described adsorption filtration layer is provided with sorbing material;
Separation net is provided with between described adsorption filtration layer;
Described separation net is used for isolating described sorbing material.
7. methane purifying device according to claim 6, is characterized in that, described adsorption filtration layer comprises: dehydration layer, decarburized layer, desulfurization layer, dehydration decarburized layer, dehydration desulfurization layer, decarbonization, desulfuration layer or dehydration decarbonization, desulfuration layer.
8. methane purifying device according to claim 7, is characterized in that:
When described adsorption filtration layer is described dehydration layer, at least one in activated alumina, silica gel, active carbon or 4A molecular sieve, 5A molecular sieve, 13X molecular sieve and 13XAPG molecular sieve selected by sorbing material;
When described adsorption filtration layer is described decarburized layer, at least one in 10X molecular sieve, 13X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area and reaming carbon molecular sieve selected by sorbing material;
When described adsorption filtration layer is described desulfurization layer, at least one in 5A molecular sieve, 10X molecular sieve, 13XAPG molecular sieve, active carbon, active carbon with high specific surface area, modified activated carbon, modified molecular screen and modified aluminas selected by sorbing material;
When described adsorption filtration layer is described dehydration decarburized layer, at least one in 13X molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon selected by sorbing material;
When described adsorption filtration layer is described dehydration desulfurization layer, at least one in 5A molecular sieve, 13XAPG molecular sieve, active carbon with high specific surface area and active carbon selected by sorbing material;
When described adsorption filtration layer is described decarbonization, desulfuration layer, at least one in 10X molecular sieve, 13XAPG molecular sieve, active carbon and active carbon with high specific surface area selected by sorbing material;
When described adsorption filtration layer is described dehydration decarbonization, desulfuration layer, at least one in carbon modified molecular sieve or activated silica gel, 13XAPG molecular sieve and active carbon selected by sorbing material.
9. methane purifying device according to claim 6, is characterized in that, also comprises: the sewage draining exit being arranged at described body bottom portion, and described sewage draining exit is used for discharging the discarded object of described body interior.
10. methane purifying device according to claim 6, is characterized in that, also comprises: be arranged at the discharge port on described body.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110981138A (en) * | 2019-12-23 | 2020-04-10 | 广州天外科技有限公司 | Municipal new forms of energy are promoted and are used septic tank marsh gas recovery clarification plant |
| CN111196940A (en) * | 2018-11-20 | 2020-05-26 | 竹山县溢水镇佳鑫牧业有限公司 | Marsh gas purification treatment equipment |
| CN111743201A (en) * | 2019-03-29 | 2020-10-09 | 曾固 | Gas purification material and application thereof |
| CN111849575A (en) * | 2020-07-23 | 2020-10-30 | 陈泽伟 | Natural gas dehydration method |
| CN115253656A (en) * | 2022-07-25 | 2022-11-01 | 连云港市宏庆电力辅机开发有限公司 | Gas deaerator |
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| CN111743201A (en) * | 2019-03-29 | 2020-10-09 | 曾固 | Gas purification material and application thereof |
| CN110981138A (en) * | 2019-12-23 | 2020-04-10 | 广州天外科技有限公司 | Municipal new forms of energy are promoted and are used septic tank marsh gas recovery clarification plant |
| CN110981138B (en) * | 2019-12-23 | 2020-11-06 | 肇庆悦能科技有限公司 | Municipal new forms of energy are promoted and are used septic tank marsh gas recovery clarification plant |
| CN111849575A (en) * | 2020-07-23 | 2020-10-30 | 陈泽伟 | Natural gas dehydration method |
| CN115253656A (en) * | 2022-07-25 | 2022-11-01 | 连云港市宏庆电力辅机开发有限公司 | Gas deaerator |
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