KR102189512B1 - Package type biogas purification system capable of simultaneous removal of ammonia and hydrogen sulfide - Google Patents

Abstract

Disclosed is a package type biogas purification system capable of simultaneous removal of ammonia and hydrogen sulfide. The package type biogas purification system comprises: a wet-type reactor for receiving biogas downward to exhaust the received biogas upward, and for spraying circulating water downward through a spray nozzle installed at an inner top portion to remove ammonia and hydrogen sulfide by dissolution mechanism and chemical mechanism with respect to the received biogas; a dry-type reactor for receiving the biogas firstly processed by the sup-type reactor downward to exhaust the biogas upward, being filled with a hybrid media manufactured by mixing 20 to 25 wt% of cellulose, 40 to 59.99 wt% of calcium carbonate, 5 to 10 wt% of magnesium carbonate, and 15 to 34.99 wt% of iron hydroxide, and 0.01 to 0.5 wt% of nutrients, so that the firstly processed biogas passes through the hybrid media to secondly remove ammonia and hydrogen sulfide by chemical mechanism and biological mechanism due to microbe; and a condensed water introduction part for introducing condensed water including sulfuric acid of high density from the dry reactor to the spray nozzle to improve removal efficiency of the ammonia in the wet-type reactor by increasing sulfuric acid density in the circulation water.

Description

Package type biogas purification system capable of simultaneously removing ammonia and hydrogen sulfide {PACKAGE TYPE BIOGAS PURIFICATION SYSTEM CAPABLE OF SIMULTANEOUS REMOVAL OF AMMONIA AND HYDROGEN SULFIDE}

The present invention relates to a biogas purification system capable of removing ammonia and hydrogen sulfide, which are harmful components in biogas, and more specifically, a wet process using process condensate and a dry process using hybrid media, so that ammonia and hydrogen sulfide are simultaneously combined. It relates to a removable, stable and economical biogas purification system.

Recently, integrated biogasification projects that mix and treat livestock manure and food waste are in progress, and the concentration of ammonia is high in the process of protein decomposition, so it is necessary to consider simultaneous removal of ammonia with desulfurization facilities. .

In the biogas composition, hydrogen sulfide (H ₂ S) and ammonia (NH ₃ ) components not only cause odor, but also have a risk of adversely affecting the corrosion of downstream facilities, inevitably, biogas production facilities can remove harmful components. The gas purification facility is one of the important processes.

The technology for hydrogen sulfide removal is being operated to maintain proper performance due to the expansion of R&D and application performance, but various problems such as excessive maintenance cost and environmental safety security that occur during replacement are emerging. On the other hand, ammonia removal There are not many related studies, and data on appropriate removal techniques are not sufficient.

On the other hand, as an existing technology, attempts have been made to use an attached microbial carrier to simultaneously remove ammonia and hydrogen sulfide, but the process configuration to maintain the reaction with the drug for each reaction step is complicated, and it is difficult to supply additional nutrients for microbial growth There is this.

There is also a water scrubbing method, but ammonia has a very high solubility in water, but hydrogen sulfide has a very low solubility at neutral pH, so the pH must be kept high.In addition, a large amount of water is required for water washing There was a disadvantage in that the problem of secondary treatment of the aqueous solution occurred.

Registered Patent No. 10-1444186 Registered Patent No. 10-0485961 Registered Patent No. 10-1751207 Registered Patent No. 10-0948334

The present invention was invented to solve the conventional problems as described above, and the chemistry between the hybrid media and a wet reactor capable of simultaneously removing hydrogen sulfide and ammonia due to a dissolution mechanism and a chemical reaction through circulation of condensed water generated in the process It is composed of a dry reaction tank that can simultaneously remove hydrogen sulfide and ammonia caused by reaction and microbial mechanisms, and it is possible to simultaneously remove ammonia and hydrogen sulfide having an improved form to effectively and stably remove ammonia and hydrogen sulfide in biogas at the same time. An object is to provide a packaged biogas purification system.

However, the object of the present invention is not limited thereto, and objects or effects that can be grasped from the solutions or embodiments of the problem are also included therein even if not explicitly mentioned.

In the packaged biogas purification system capable of simultaneously removing ammonia and hydrogen sulfide to achieve the above object, the biogas is introduced into the lower portion and discharged to the upper portion, and the circulating water is lowered through the injection nozzle installed on the inner upper portion. A wet reactor for removing ammonia and hydrogen sulfide by a chemical mechanism and a dissolution mechanism for the introduced biogas by spraying so as to be sprayed; The biogas, which has been primarily treated in the wet reactor, flows into the lower portion and is discharged to the upper portion, and cellulose 20-25W%, calcium carbonate 40-59.99W%, magnesium carbonate 5-10W%, and iron hydroxide 15-34.99W%, inside. A hybrid media prepared by mixing 0.01 to 0.5 W% of nutrients is filled, and the first treated biogas passes through the hybrid media, and ammonia and hydrogen sulfide are secondarily removed by a chemical mechanism and a biological mechanism by microorganisms. A dry reactor; And a condensed water introduction unit configured to increase the sulfuric acid concentration of the circulating water by introducing condensed water containing high-concentration sulfuric acid generated in the dry reactor into the spray nozzle to improve the ammonia removal efficiency in the wet reactor. do.

The wet reactor includes: a wet reactor having a first inlet through which biogas flows into one side of a lower outer circumferential surface and a first outlet through which the first processed biogas is discharged; A spray nozzle part disposed on the inner upper part of the wet reaction tank and spraying circulating water downward; A suction nozzle part formed at the bottom of the wet reaction tank and for sucking circulating water injected from the spray nozzle part and collected at the bottom of the wet reaction tank; A circulating water supply unit connecting the suction nozzle unit and the injection nozzle unit and supplying the circulating water sucked through the suction nozzle unit and the condensed water generated in the dry reactor to supply the circulating water to the injection nozzle unit to circulate the circulating water; It may be configured to include; a filler made of a polling agent made of a polymer material that is installed inside the wet reaction tank to increase the contact efficiency between the biogas and the circulating water.

The dry reactor is a dry reactor in which the hybrid media is filled therein, a second inlet through which the first treated biogas is introduced is formed in the lower part, and a second outlet through which the finally treated biogas is discharged is formed in the upper part. ; It may be configured to include a; gas distribution plate coupled to the lower inner side of the dry reaction tank to evenly distribute and supply the first-treated biogas to the hybrid media side.

According to the above, since ammonia and hydrogen sulfide in the biogas are removed through a continuous multi-stage removal reaction by the first wet process and the second dry process, the process is very stable and highly efficient removal is possible. Since ammonia and hydrogen sulfide are firstly removed in the secondary wet process, problems such as clogging of hybrid media and pipe clogging in the secondary dry process can be improved.

In addition, by utilizing the condensed water generated in the dry reaction tank as circulating water in the wet reaction tank, ammonia is dissolved in the wet reaction tank and the removal by chemical reaction is promoted, greatly increasing the removal efficiency of ammonia. Since there is no need to supply a separate acid, very economical operation can be achieved.

In addition, the present invention enables stable operation by simultaneously removing hydrogen sulfide and ammonia in biogas in a dry reaction tank, and contains zero nutrients in the media, so that an economical facility that does not require additional equipment can be constructed, and also supplies drugs. There is no need to install the lamp, and the maintenance cost is reduced.

1 is a view showing a packaged biogas purification system capable of simultaneously removing ammonia and hydrogen sulfide according to an embodiment of the present invention,
2 is an enlarged cross-sectional view showing another example of the gas distribution plate of FIG. 1,
3 is an enlarged cross-sectional view showing another type of gas distribution plate of the present invention,
4 is an enlarged cross-sectional view showing another form of gas dispersion play according to the present invention.
5 is a view showing the gas separation member of FIG. 4 viewed from above.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently transmitted to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component or that a third component may be interposed between them. In addition, in the drawings, the thickness of the components is exaggerated for effective description of the technical content.

Embodiments described in the present specification will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective description of technical content. Accordingly, the shape of the exemplary diagram may be modified by manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include a change in form generated according to a manufacturing process. For example, the etched area shown at a right angle may be rounded or may have a shape having a predetermined curvature. Accordingly, the regions illustrated in the drawings have properties, and the shapes of the regions illustrated in the drawings are for exemplifying a specific shape of the region of the device and are not intended to limit the scope of the invention. In various embodiments of the present specification, terms such as first and second are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another component. The embodiments described and illustrated herein also include complementary embodiments thereof.

The terms used in this specification are for describing exemplary embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not largely related to the invention are not described in order to prevent confusion without any reason in describing the invention.

Hereinafter, a packaged biogas purification system capable of simultaneously removing ammonia and hydrogen sulfide according to an embodiment of the present invention will be described with reference to FIG. 1.

The biogas purification system of the present invention includes a wet reactor 10 for removing ammonia and hydrogen sulfide contained in biogas by dissolving and chemical mechanisms by spraying circulating water, and biogas first treated in the wet reactor 10. A dry reactor (20) for secondary removal of ammonia and hydrogen sulfide by a chemical mechanism and a biological mechanism by microorganisms by passing gas through the hybrid media, and a wet reactor (10) for condensate containing high concentration sulfuric acid generated in the dry reactor. It is configured to include a condensed water introduction unit 30 for increasing the ammonia removal efficiency in the wet reactor 10 by intervening in the circulating water and spraying the circulating water containing high concentration sulfuric acid.

Specifically, the configuration of the biogas purification system of the present invention will be described.

The wet reactor 10 is configured to include a wet reaction tank 11, an injection nozzle part 12, a suction nozzle part 13, a circulating water supply part 14, and a filler 15.

The wet reaction tank 11 has a first inlet 11a through which biogas flows into the lower one side and a first outlet 11b through which biogas that has been first processed is discharged, and a filler 15 is formed therein. It is configured to be filled.

The injection nozzle part 12 is disposed on the inner upper part of the wet reaction tank 11 and is configured to inject circulating water (water) to the lower part. The circulating water sprayed in this way removes ammonia and hydrogen sulfide contained in the biogas flowing into the wet reaction tank 11 through a dissolution mechanism and a chemical mechanism.

That is, ammonia and hydrogen sulfide contained in the biogas are removed while the biogas introduced into the wet reaction tank 11 is in contact with the circulating water (water) sprayed from the injection nozzle unit 12.

Specifically, ammonia and hydrogen sulfide contained in biogas are gases having high solubility in water, and ammonia and hydrogen sulfide may be removed by a dissolution mechanism by contacting circulating water.

In addition, the condensed water supplied from the dry reactor 20, which will be described later, is joined to the spray nozzle unit 12 and is sprayed as circulating water, and the high concentration sulfuric acid contained in the condensed water causes a chemical reaction with ammonia contained in the biogas. The ammonia removal efficiency increases.

The chemical reaction between sulfuric acid (H ₂ SO ₄ ) and ammonia contained in condensed water is as follows.

H ₂ SO ₄ + NH ₃ --> (NH ₄ ) ₂ SO ₄

The suction nozzle part 13 is configured to suck the circulating water collected at the bottom of the wet reaction tank 11 after being injected from the injection nozzle part 12, and the circulating water supply part 14 is a suction nozzle part 13 and a spray nozzle. It is configured to connect the part 12, so that the circulating water collected in the bottom of the wet reaction tank 11 is sucked through the suction nozzle part 13, and the circulating water is circulated to the injection nozzle part 12. Supply.

The circulating water supply unit 14 is a circulation pipe 14a that circulates and supplies the circulating water connecting the suction nozzle unit 13 and the injection nozzle unit 12, and is installed on the circulation pipe 14a to supply circulating water. It is configured to include a circulation pump 14b for transferring.

The filler 15 is installed in the wet reaction tank 21 to increase the contact efficiency between the biogas and the circulating water, and is made of a polling agent made of a polymer material.

Here, the polling agent is composed of an irregular shape of a linear polymer material such as a wire and has a three-dimensional honeycomb structure, and is configured to be filled in the wet reaction tank 11, and the circulating water and biotechnology are sprayed from the top of the wet reaction tank 11 and dropped. By increasing the contact efficiency of the gas, the removal efficiency of ammonia and hydrogen sulfide in the biogas can be improved.

The dry reactor 20 is configured to include a dry reactor 21, a hybrid media 22, and a gas dispersion plate 25.

The dry reaction tank 21 has a second inlet 21a formed at the bottom and a second outlet 21a at the top. The second inlet 21a is configured to be connected to the first outlet 11b of the wet reaction tank 11 through a connection pipe p, so that the first treated biogas discharged from the wet reaction tank 11 is discharged from the dry reaction tank ( 21), and in the second outlet 21, ammonia and hydrogen sulfide are secondaryly removed from the first treated biogas flowing into the dry reactor 21 through the hybrid media 22, Allow biogas to be released.

The hybrid media 22 is a media for secondaryly removing ammonia and sulfide water by a chemical mechanism and a biological mechanism by microorganisms as the first treated biogas filled and introduced into the dry reaction tank 21 passes.

Hybrid Media (22) is manufactured by mixing cellulose 20-25W%, calcium carbonate 40-59.99W%, magnesium carbonate 5-10W%, iron hydroxide 15-34.99W%, and nutrient salts 0.01-0.5W% to form pellets. Consists of

Here, cellulose has a structure of a porous fiber, so it is lightweight and has high specific surface area, and has durability as a media support. Carbonates such as calcium carbonate and magnesium carbonate were added to remove the acid generated when removing ammonia, and iron hydroxide (Fe(OH) ₃ ) particles were added to remove sulfur compounds, and trace amounts of manganese oxide and nutrients were added. Was added.

Hybrid media (22) is a pallet capable of simultaneously removing hydrogen sulfide and ammonia by a chemical reaction mechanism with metal ions (Fe, Mg, etc.) and a bioreaction mechanism using sulfation microbes, nitrification and denitrification microbes living in the media. It is a median of type.

In the media composition, cellulose not only maintains a high porosity, but also allows it to retain a certain moisture, and forms a support in which sulfated microorganisms, nitrifying and denitrifying microorganisms can adhere to and inhabit.

Hydrogen sulfide in the biogas reacts with iron hydroxide, which is a composition of the hybrid media 22, to form a reactant (FeS), and the reaction formula is as follows.

2Fe(OH) ₃ + 3H ₂ S --------> 2FeS + S + 6H ₂ O

Simultaneously with this chemical reaction, hydrogen sulfide undergoes an oxidation reaction by sulfation microorganisms living in the media, which is achieved by using residual oxygen present in the biogas.

H ₂ S + 0.5 O ₂ --------> S + H ₂ O

H ₂ S + 2O ₂ --------> H ₂ SO ₄

In addition, ammonia in the biogas component reacts with moisture to become ammonia ions, and is converted into nitrite nitrogen (NO ₂ ^-- N) and nitrate nitrogen (NO ₃ ^-- N) again by nitrifying microorganisms under aerobic conditions. Nitrosomonas, Nitrobacter, a chemical independent nutritional microorganism, uses ammonia as an energy source, and its reaction formula is as follows.

NH ₃ + H ⁺ → NH ₄ ⁺

^{_{2NH 4 + + 3O 2 → 2NO}} 2 - + 2H 2 O + 4H +

^{_{2NO 2 - + O 2 → 2NO}} 3 -

On the other hand, as described above, condensate containing sulfuric acid (H ₂ SO ₄ ) is generated in the process of removing hydrogen sulfide and ammonia from biogas through a chemical mechanism through the hybrid media 22 and a biological reaction operation by microorganisms. , This condensed water is collected and collected in the bottom of the dry reaction tank 21. At this time, a drain port 24 for draining the condensed water collected at the bottom of the dry reaction tank 21 is provided at the lower end of the dry reaction tank 21.

Referring to Figure 1, the gas dispersion plate 25 is installed in the lower inner side of the dry reaction tank 21, the first processed biogas supplied from the wet reactor 10 and introduced through the second inlet (21a). It is a means for evenly distributed and supplied to the hybrid media 22 side. The gas distribution plate 25 may be made of a metal plate material having a plurality of pores having a predetermined size, and the gas distribution plate 25 is configured to be disposed in the interior of the dry reaction tank 21 in the horizontal direction. Gas may be distributed and evenly distributed and supplied to the hybrid media 22. Accordingly, the biogas can be evenly distributed to the hybrid media 22 and contacted evenly, so that the removal efficiency of hydrogen sulfide and ammonia can be improved.

As described above, the gas distribution plate 25 of the present invention has a single plate shape, but is not limited thereto, and two plates may be configured to form a double structure.

Referring to FIG. 2, the gas distribution plate 25 may include a first distribution plate 26 and a second distribution plate 27.

The first dispersion plate 26 and the second dispersion plate 27 may be configured to be disposed vertically in the dry reaction tank 21 at regular intervals. The first dispersion plate 26 and the second dispersion plate 27 are provided to correspond to the area of the dry reaction tank 21 and are disposed on the movement path of the biogas introduced through the second inlet 21a.

The first dispersion plate 26 and the second dispersion plate 27 are made of metal plates. The plate surface of the first dispersion plate 26 is provided with a plurality of first pores 26a that are circular at regular intervals, and the second dispersion plate 27 has a plurality of second pores 27b that are circular at regular intervals. Is equipped.

In this case, the plurality of first pores 26a are not disposed on the same vertical axis as the plurality of second pores 27b, but are formed to shift from each other.

Thereby, the biogas introduced through the second inlet 21a passes through the plurality of first pores 26a, and then hits the wall surface of the second dispersion plate 27 to disperse the biogas, and is disposed on both sides. It is distributed through the second pore (27b).

In this way, since the biogas distributed and supplied to the plurality of first pores 26a hits the wall surface of the second dispersion plate 27 and is distributed and supplied again to the plurality of second pores 27a, the dry reaction tank ( It is distributed evenly and supplied to all areas of 21). Accordingly, the biogas can be evenly distributed to the hybrid media 22 and contacted evenly, so that the removal efficiency of hydrogen sulfide and ammonia can be further improved.

On the other hand, although not shown, a plurality of first slit holes formed in a long hole shape between a plurality of first pores 26 are formed in the first dispersion plate 26, and a plurality of first slit holes are formed in the second dispersion plate 27. It is configured to form a plurality of second slit holes formed in the form of long holes between the two pores 27, and the plurality of first slit holes and a plurality of second slit holes cross each other in a "+" shape in the vertical direction. It can be configured to be arranged in a form that is intersecting.

In addition, referring to FIG. 3, in the gas distribution plate of another type, a first spiral groove 26aa is formed on the inner circumferential surface of each of the plurality of first pores 26a formed in the first distribution plate 26, and the second dispersion A second spiral groove (27aa) is formed on the inner circumferential surface of each of the plurality of second pores (27a) formed in the plate (27), and the first spiral groove (26aa) and the second spiral groove (27aa) have a spiral direction. They are made in opposite forms.

When the biogas passes through the first pore (26a), it is guided to the first spiral groove (26aa) to form a swirling vortex in one direction, and the rising swirling vortex hits the ceiling wall of the second dispersion plate (27) After being dispersed, when passing through the plurality of second pores 27a, a vortex vortex in the other direction is formed by the second helical groove 27aa in a helical direction opposite to the first helical groove 26aa. As it is distributed and supplied to 22), the efficiency of removing hydrogen sulfide and ammonia can be improved by further increasing the contact efficiency with the media.

In addition, referring to FIGS. 4 and 5, the first dispersion plate 26 includes a gas separating member 29 in the shape of a “+” at the upper end of the first pore 26a, so that the biogas is the first pore. After flowing into (26a), it is guided to the first spiral groove (26aa) to form an upward swirling vortex in one direction, and after it is split by the gas separation member (29), the dispersion of gas is increased, and the second dispersion plate is again By hitting the wall surface of (27) again and being dispersed, the more dispersed biogas is supplied to the second pore (27a) before flowing into the second pore (27a), thereby further improving the even distribution of the biogas. .

The condensed water introduction unit 30 connects the drain 24 of the dry reaction tank 21 and the circulating water supply unit 14, and supplies condensed water containing high concentration sulfuric acid collected at the bottom of the dry reaction tank 21 to the circulating water supply unit 14 It is a configuration that is supplied to and flows into the injection nozzle 12.

The condensed water introduction part 30 may be formed of a pipe, and may be formed in a form that connects the drain port 24 and the circulation pipe 14a.

Condensed water containing high-concentration sulfuric acid generated in the dry reaction tank 21 through the condensed water introduction unit 30 merges with the circulating water and is sprayed through the spray nozzle 12, so that ammonia in the biogas passing through the filler 15 is condensed water. As sulfuric acid (H ₂ SO ₄ ) contained in the water is removed through a chemical mechanism, in the wet reaction tank 21, ammonia is not only removed through a dissolution mechanism with the circulating water, but also sulfuric acid (H ₂₎ of the condensed water joined to the circulating water. As SO ₄ ) and ammonia are removed through a chemical mechanism, the removal efficiency of ammonia is remarkably improved.

As described above, the present invention has been illustrated and described in connection with preferred embodiments for exemplifying the principles of the present invention, but the present invention is not limited to the configuration and operation as shown and described as such. Rather, it will be well understood by those skilled in the art that a number of changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all such appropriate changes and modifications and equivalents should be considered to be within the scope of the present invention.

10...wet reactor
11...wet reactor
12... injection nozzle part
13...Suction nozzle part
14...Circulating water supply
15...filling material
20...dry reactor
21...dry reactor
22...Hybrid Media
24... drain
25...gas dispersion plate
30... condensate introduction

Claims (3)

A wet reactor in which the biogas is introduced into the lower part and discharged to the upper part, and the circulating water is injected downward through the injection nozzle installed at the inner upper part to remove ammonia and hydrogen sulfide by a dissolution mechanism and a chemical mechanism for the introduced biogas;
The biogas, which has been primarily treated in the wet reactor, flows into the lower portion and is discharged to the upper portion, and cellulose 20-25W%, calcium carbonate 40-59.99W%, magnesium carbonate 5-10W%, and iron hydroxide 15-34.99W%, inside. A hybrid media prepared by mixing 0.01 to 0.5 W% of nutrients is filled, and the first treated biogas passes through the hybrid media, and ammonia and hydrogen sulfide are secondarily removed by a chemical mechanism and a biological mechanism by microorganisms. A dry reactor;
And a condensed water introduction unit configured to increase the sulfuric acid concentration of the circulating water by introducing condensed water containing high-concentration sulfuric acid generated in the dry reactor into the spray nozzle to improve the ammonia removal efficiency in the wet reactor. Packaged biogas purification system capable of simultaneously removing ammonia and hydrogen sulfide.
The method of claim 1,
The wet reactor,
A wet reaction tank having a first inlet through which biogas flows into one side of the lower outer circumference and a first outlet through which the first processed biogas is discharged;
A spray nozzle part disposed on the inner upper part of the wet reaction tank and spraying circulating water downward;
A suction nozzle part formed at the bottom of the wet reaction tank and for sucking circulating water injected from the injection nozzle part and collected at the bottom of the wet reaction tank;
A circulating water supply unit connecting the suction nozzle unit and the injection nozzle unit and supplying the circulating water sucked through the suction nozzle unit and the condensed water generated in the dry reactor to supply the circulating water to the injection nozzle unit to circulate the circulating water;
A package-type biogas purification system capable of simultaneously removing ammonia and hydrogen sulfide, comprising; a filler made of a polymer material that is installed inside the wet reaction tank to increase the contact efficiency between the biogas and the circulating water. .
The method of claim 1,
The dry reactor,
A dry reactor in which the hybrid media is filled therein, a second inlet through which the first processed biogas is introduced is formed in a lower portion, and a second outlet through which the finally processed biogas is discharged is formed in an upper portion;
A packaged biogas purification system comprising: a gas distribution plate coupled to an inner lower portion of the dry reactor to distribute and supply the primary treated biogas evenly toward the hybrid media.

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