CN208082141U - A kind of low-temperature methane purification devices - Google Patents
A kind of low-temperature methane purification devices Download PDFInfo
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- CN208082141U CN208082141U CN201820167181.0U CN201820167181U CN208082141U CN 208082141 U CN208082141 U CN 208082141U CN 201820167181 U CN201820167181 U CN 201820167181U CN 208082141 U CN208082141 U CN 208082141U
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- purification devices
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Abstract
The utility model is related to a kind of low-temperature methane purification devices, including packed bed, the packed bed main composition trapping system, entrance end on the packed bed is respectively connected with on-line checking instrument, the trapping system couples one regeneration/cooling system and forms coupling device, realizes different operation phase continuous services.Identical in biogas primary condition and trapping discrete consuming, this method occupies little space compared to traditional vacuum pressure swing absorption process with bed body, CH4Purity, yield and the rate of recovery are high, advantage that low energy consumption, and appropriate change bed body temperature, can be to H2S has good removal effect, easy to operate.
Description
Technical field
The utility model is related to biogas technical field of purification, and in particular to a kind of low-temperature methane purification devices.
Background technology
Biogas is a kind of regenerative resource, is by various organic substances, in isolation air, and in suitable temperature, pH value
Under, by a kind of combustible gas of the fermentation generation of microorganism.Its calorific value is generally 7450~2350kJ/m3, with
Other combustion gas are compared, and the capability of antidetonance is preferable, are a kind of potential clean energy resourcies, can both replace the traditional biomass such as stalk, fuel wood
The energy, also commercial energys such as alternative coal, and also energy efficiency is apparently higher than stalk, fuel wood, coal etc..The comprehensive profit of biogas
With can improve working condition, improve Business Economic Benefit, curb environmental pollution (processing excrement, rubbish, organic wastewater, useless
Slag), biogas engineering have become pollution administration, production clean energy resource and organic fertilizer (feed), the Implement of sustainable development it is important
Measure.The main component of biogas is methane, accounts for about 50~70%；Followed by carbon dioxide accounts for about 25~45%；Remaining is a small amount of
Hydrogen sulfide, hydrogen, saturated steam and siloxanes etc..Mainly by methane, methane is a kind of no color or smell gas for the burning of biogas
Body, it and a certain number of air mix, and igniting just can blaze up, and send out blue flame and a large amount of heat.In biogas
Carbon dioxide be a kind of greenhouse gases, do great harm to the environment, while the presence of carbon dioxide can reduce biogas conduct
The calorific value of fuel increases and collects defeated expense.Sulfureted hydrogen burning will produce to human body and the harmful sulfur dioxide of environment, can also generate sulphur
Acid causes the corrosion of equipment, pipeline.Siloxanes can be converted into silica at high temperature when burning, this white powder can block or
Damage equipment.Therefore, before biogas recycles, it is necessary to carry out purification process to it.
Utility model content
The purpose of the utility model is to overcome defects existing for above-mentioned background technology, provide a kind of low-temperature methane purifying dress
It sets.
The technical solution of the utility model:A kind of low-temperature methane purification devices, including packed bed, the main structure of packed bed
At trapping system, the entrance end of the packed bed is respectively connected with on-line checking instrument, one regeneration of trapping system coupling/cold
But system forms coupling device, realizes different operation phase continuous services；
Marsh gas raw materials gas import is provided on the entrance pipe of the coupling device；
The outlet of marsh gas raw materials gas is provided on the export pipeline of the coupling device；
The trapping system includes by the marsh gas raw materials gas import with the concatenated air compressor C-1 of pipeline, refrigeration machine
A, packed bed and it is set to the marsh gas raw materials gas export mixes of air compressor C-2；
Regeneration gas entrance is provided in the bypass of the export pipeline of the coupling device；
Regeneration gas outlet is provided in the bypass of the entrance pipe of the coupling device；
Regeneration/the cooling system include by regeneration gas entrance with the concatenated air compressor C-3 of pipeline, refrigeration machine B, fill out
Expect bed and regeneration gas export mixes.
The trapping system works alternatively simultaneously with the regeneration/cooling system.
There are two the packed bed settings, is parallel-connection structure.
The regeneration gas is dry air.
The on-line checking instrument is gas chromatograph or near infrared spectrometer.
It is provided with connecting line and communicating valve between the regeneration gas entrance and regeneration gas outlet.
Compared with prior art, the utility model has the advantage that：It is identical in biogas primary condition and trapping discrete consuming
In the case of, this method occupies little space compared to traditional vacuum pressure swing absorption process with bed body, CH4Purity, yield and
The rate of recovery is high, advantage that low energy consumption, and appropriate change bed body temperature, can be to H2S has good removal effect, easy to operate.
It has the following advantages：
1, the utility model can be effectively removed the carbon dioxide in biogas, while low temperature carbon dioxide being avoided to deposit
Caused by clogging, and the hot mass transfer rate subsequently brought declines and the problems such as resulting mechanical stress.
2, the utility model can be effectively removed the hydrogen sulfide in biogas, obtained methane purity, yield and the rate of recovery
Height, and packed bed initial temperature is lower, purity is higher.
3, packed bed simple structure, the floor space used in the utility model are small, and filler is cheap, cost of investment
It is low.
4, regeneration gas uses the counter-flow pattern opposite with unstripped gas airintake direction in the utility model, improves regeneration efficiency.
5, the product temperature obtained in the utility model is low, is easy to liquefy to product, to further reduce the cost.
Description of the drawings
Fig. 1 is the utility model low-temperature methane purification devices structural schematic diagram.
Reference numeral:1- marsh gas raw materials gas imports, the outlet of 2- marsh gas raw materials gas, 3- air compressors C-1,4- refrigeration machine A,
5- packed beds, 6- air compressors C-2,7- on-line checking instrument, 8- regeneration gas entrances, the outlet of 9- regeneration gases, the compression of 10- air
Machine C-3,11- refrigeration machine B.
Specific implementation mode
The utility model is further described below by specific embodiments and the drawings.The embodiments of the present invention
It is not make any limit to the utility model to preferably make those skilled in the art more fully understand the utility model
System.
As shown in Figure 1, a kind of low-temperature methane purification devices of the utility model, including packed bed 5, it is filled out described in the present embodiment
Expect there are two the settings of bed 5, is parallel-connection structure, 5 main composition trapping system of the packed bed, the entrance on the packed bed 5
End is respectively connected with on-line checking instrument 7, and on-line checking instrument described in the present embodiment 7 is gas chromatograph or near infrared spectrum
Instrument, the trapping system couple one regeneration/cooling system and form coupling device, the trapping system and the regeneration/cooling system
It unites while working alternatively, realize different operation phase continuous services.Biogas original is provided on the entrance pipe of the coupling device
Expect gas import 1, marsh gas raw materials gas outlet 2 is provided on the export pipeline of the coupling device, the trapping system includes by institute
Marsh gas raw materials gas import 1 is stated with the concatenated air compressor C-1 3 of pipeline, refrigeration machine A4, packed bed 5 and is set to air pressure
The marsh gas raw materials gas outlet 2 of contracting machine C-2 6 is constituted；Regeneration gas entrance is provided in the bypass of the export pipeline of the coupling device
8, the regeneration gas is dry air, is provided with regeneration gas outlet 9 in the bypass of the entrance pipe of the coupling device, it is described again
Life/cooling system includes by regeneration gas entrance 8 with the concatenated air compressor C-3 10 of pipeline, refrigeration machine B11,5 and of packed bed
Regeneration gas outlet 9 is constituted.
Filler specification used by the utility model packed bed 5 is as follows：
In order to adjust regeneration gas flow, the reflux mixing of adjustment member regeneration gas goes out in the regeneration gas entrance 8 and regeneration gas
It is provided with a by-pass between mouth 9, is made of pipeline and communicating valve.
Utility model works process is as follows：Trapping system includes concatenated with pipeline by the marsh gas raw materials gas import 1
Air compressor C-1 3, refrigeration machine A4, packed bed 5 and 2 structures of marsh gas raw materials gas outlet for being set to air compressor C-2 6
At trapping H in packed bed 52S、CO2Etc. foreign gases, trapping it is former from biogas after being pressurizeed by air compressor C-2 6 after purify
Expect 2 discharge of gas outlet.Entrance end on packed bed 5 is respectively connected with the variation of 7 on-line checking concentration of on-line checking instrument, works as filler
Bed 5 in entrance end gas concentration do not change, show that filler penetrates and regenerated, rear gas component with enter
When component is close at mouthful, Restoration stage is can switch to, in order to not influence continuous trapping, starts another set of packed bed 5 in parallel.Together
When the packed bed start regeneration, regeneration/cooling system includes by regeneration gas entrance 8 with the concatenated air compressor C-3 of pipeline
10, refrigeration machine B11, packed bed 5 and regeneration gas outlet 9 are constituted, and are passed through into packed bed 5 spare after dry air is regenerated.
It should be understood that embodiment and example discussed herein simply to illustrate that, to those skilled in the art
For, it can be improved or converted, and all these modifications and variations should all belong to the appended claims for the utility model
Protection domain.
Claims (6)
1. a kind of low-temperature methane purification devices, including packed bed, which is characterized in that the packed bed main composition trapping system,
The entrance end of the packed bed is respectively connected with on-line checking instrument, and the trapping system couples one regeneration/cooling system composition
Coupling device realizes different operation phase continuous services；
Marsh gas raw materials gas import is provided on the entrance pipe of the coupling device；
The outlet of marsh gas raw materials gas is provided on the export pipeline of the coupling device；
The trapping system include by the marsh gas raw materials gas import with the concatenated air compressor C-1 of pipeline, refrigeration machine A, fill out
Material bed and the marsh gas raw materials gas export mixes for being set to air compressor C-2；
Regeneration gas entrance is provided in the bypass of the export pipeline of the coupling device；
Regeneration gas outlet is provided in the bypass of the entrance pipe of the coupling device；
Regeneration/the cooling system includes by regeneration gas entrance with the concatenated air compressor C-3 of pipeline, refrigeration machine B, packed bed
With regeneration gas export mixes.
2. low-temperature methane purification devices according to claim 1, which is characterized in that the trapping system with it is described regeneration/
Cooling system works alternatively simultaneously.
3. low-temperature methane purification devices according to claim 1, which is characterized in that there are two the packed bed settings, is
Parallel-connection structure.
4. low-temperature methane purification devices according to claim 1, which is characterized in that the regeneration gas is dry air.
5. low-temperature methane purification devices according to claim 1, which is characterized in that the on-line checking instrument is gas phase color
Spectrometer or near infrared spectrometer.
6. low-temperature methane purification devices according to claim 1, which is characterized in that the regeneration gas entrance and regeneration gas go out
It is provided with connecting line and communicating valve between mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167181.0U CN208082141U (en) | 2018-01-31 | 2018-01-31 | A kind of low-temperature methane purification devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167181.0U CN208082141U (en) | 2018-01-31 | 2018-01-31 | A kind of low-temperature methane purification devices |
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| Publication Number | Publication Date |
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| CN208082141U true CN208082141U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820167181.0U Expired - Fee Related CN208082141U (en) | 2018-01-31 | 2018-01-31 | A kind of low-temperature methane purification devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273359A (en) * | 2018-01-31 | 2018-07-13 | 天津大学 | A kind of low-temperature methane purification devices |
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2018
- 2018-01-31 CN CN201820167181.0U patent/CN208082141U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273359A (en) * | 2018-01-31 | 2018-07-13 | 天津大学 | A kind of low-temperature methane purification devices |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20200131 |