CN203530266U - Drying device for preparing compressed biogas by using methane - Google Patents
Drying device for preparing compressed biogas by using methane Download PDFInfo
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- CN203530266U CN203530266U CN201320649846.9U CN201320649846U CN203530266U CN 203530266 U CN203530266 U CN 203530266U CN 201320649846 U CN201320649846 U CN 201320649846U CN 203530266 U CN203530266 U CN 203530266U
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- drying
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- dewatering unit
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- natural gas
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000001035 drying Methods 0.000 title claims abstract description 55
- 230000008929 regeneration Effects 0.000 claims abstract description 29
- 238000011069 regeneration method Methods 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 69
- 239000003345 natural gas Substances 0.000 claims description 35
- 235000009508 confectionery Nutrition 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 17
- 230000002411 adverse Effects 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000001172 regenerating effect Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 abstract 2
- 238000005262 decarbonization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 12
- 238000001179 sorption measurement Methods 0.000 description 12
- 238000005261 decarburization Methods 0.000 description 9
- 239000002594 sorbent Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of preparation of new energy resources, in particular relates to a drying device for preparing compressed biogas by using methane. The drying device comprises a dehydrating device I and a dehydrating device II, wherein a compressor is mounted between the dehydrating device I and the dehydrating device II; a water washing decarbonization tower is mounted in front of the dehydrating device I; a finished gas output pipe is arranged in a gas exhausting port of the dehydrating device II; the dehydrating device I and the dehydrating device II adopt skid-mounted structures, and respectively comprise a filter I, a drying tower A, a drying tower B and a filter II sequentially arranged along a gas drying pipeline; the drying device further comprises a control system; the upper part of the filter I is respectively communicated with the bottoms of the drying towers A and B; the upper part of the filter II is respectively communicated with the tops of the drying towers A and B; meanwhile, a regenerative gas reflux heating regeneration pipeline is arranged between the drying towers A and B; a closed heater and a cooling separator are mounted on the regenerative gas reflux heating regeneration pipeline. The drying device for preparing the compressed biogas by using the methane has the advantages of simple structure, high processing efficiency and convenience for operation, can reasonably allocate according to different requirements and purposes, effectively reduces the operation cost on the premise of guaranteeing the processing quality, and is specifically suitable for promotion and application.
Description
Technical field
The utility model belongs to new forms of energy preparing technical field, particularly relates to a kind of drying installation of preparing compression biological Sweet natural gas for biogas.
Background technology
Utilize organism anaerobic biological to process the biogas producing, its main component is: methane 50%-60%, carbonic acid gas 50%-40% and a small amount of gases such as hydrogen sulfide.In recent years, biogas is used widely in fields such as combustion gas, generating, Industrial Boilers as a kind of renewable energy source, technology is mature on the whole, yet biogas decarburization is purified, the development produce bio-natural gas technology will be promoted to a new height for the Application Areas of biogas.Bio-natural gas by national standard (GB17820-1999) two class gas standards is: gross calorific value >=31.4MJ/m, carbonic acid gas≤3%, hydrogen sulfide≤20mg/m.The introducing of biogas decarburization purification techniques in biogas engineering, not only promoted biogas engineering overall technology level, expand biogas comprehensive utilization approach, for the sustainable development of biogas industry lays the foundation, and after can purifying by decarburization, sell bio-natural gas and bring higher fund to return.Biogas decarburization after purifying be biological natural gas, as a kind of biological flue gas, there are clean, efficient, safe and renewable four large features, its efficient preparation is to have representational two-way cleaning course with comprehensive utilization, can make up the problem that current natural gas energy resource is under-supply, as new, can will in energy general layout, occupy a tiny space by the type energy.
At present, natual gas dehydrate unit spininess, to from oil, gas field extraction and the Sweet natural gas after wet desulphurization, uses method of cooling, absorption process, absorption method, membrane separation process to carry out processed.The withering maturation method of bio-natural gas of not producing through washing decarburization for biogas can be used for reference.Still need the features such as makings through the bio-natural gas produced of washing decarburization according to biogas, various dewatering units are carried out practical validation and optimized and revised.
Summary of the invention
The technical problems to be solved in the utility model overcomes above-mentioned the deficiencies in the prior art exactly, in existing biogas decarburization, purify and produce on the basis of bio-natural gas technology, provide a kind of simple in structure, processing efficiency is high, easy to operate, can be according to different requirements and purposes reasonable disposition, that effectively reduces running cost prepares the drying installation of compression biological Sweet natural gas for biogas.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of drying installation of preparing compression biological Sweet natural gas for biogas, comprise dewatering unit I and dewatering unit II, between dewatering unit I and II, compressor is installed, washing decarbonizing tower was installed before dewatering unit I, at dewatering unit II venting port, be provided with finished product gas output channel, described dewatering unit I and II are sledge-borne type structure, dewatering unit I and II comprise respectively along gas drying pipeline and are disposed with strainer one, drying tower A, drying tower B and strainer two, also comprise Controlling System, described strainer one top is communicated with drying tower A and B bottom respectively, strainer two tops are communicated with drying tower A and B top respectively, between drying tower A and B, be provided with resurgent gases adverse current thermal regeneration pipeline simultaneously, on resurgent gases adverse current thermal regeneration pipeline, closed-type heater is installed, cooling separator.
In described dewatering unit I, resurgent gases adverse current thermal regeneration pipeline is closed cycle pipeline, and recirculation blower is installed on closed cycle pipeline simultaneously.
In described dewatering unit II, resurgent gases adopts a small amount of finished product gas, between finished product gas output channel and closed-type heater, is provided with reducing valve, and the finished product gas after cooling separator enters low pressure recovery system.
Described on gas drying pipeline, drying tower A and B gas inlet and outlet place be respectively arranged with control valve, simultaneously on resurgent gases circulation line, drying tower A and B gas inlet and outlet place be respectively arranged with control valve.
Described Controlling System comprises non-explosion-proof electric control box and the other explosion-proof start-stop button of machine.
On described resurgent gases circulation line, tensimeter and thermometer are installed simultaneously.
The beneficial effect of technical solutions of the utility model is:
1, structurally, the drying installation that the utility model is prepared compression biological Sweet natural gas for biogas comprises dewatering unit I and II, compressed the boosting of biogas after desulfurizing and purifying carried out decarburization, biogas after decarburization dehydrates through device I, after reaching the defeated requirement of pipe, again compress, through device II, dehydrate afterwards, make compression biological Sweet natural gas (CBNG), this apparatus system is prepared the higher characteristic of gaseous media water content in bio-natural gas process for biogas, configuration drying installation, realize reliable and stable dehydrating effect, reach the requirement of water dew point in Natural gas standard.Wherein dewatering unit I and II adopt and are different from traditional natural gas adsorbent dewatering, utilize molecular sieve to dehydrate as sorbent material, simple in structure, processing efficiency is high, easy to operate, and according to different purposes reasonable disposition, under the prerequisite that guarantees Disposal quality, effectively reduce running cost.
2, structurally, the utility model is provided with dewatering unit I, biogas through pressurized water wash-out carbon, pressure carries out processed at 1.9-2.0mpa through dewatering unit I, quality reaches the defeated requirement of pipe: work and the recovery time of rationally adjusting adsorption tower, to meet the dew point requirement of dry gas, when reducing pressure by regulating flow, avoid the stifled generation of hydrate and ice.Not loss finished product gas in this dewatering unit I use procedure, has advantages of that regeneration zero release and energy consumption are low.
3, structurally, the utility model is provided with dewatering unit I and II, through dewatering unit I, carry out processed, the gas that quality reaches the defeated requirement of pipe enters dewatering unit II and carries out deep dehydration processing after compressor is pressurized to 20mpa, cleanup standard reaches compressed natural gas used as vehicle fuel dew point standard-required: work and the recovery time of rationally adjusting adsorption tower, to meet the dew point requirement of dry gas, when reducing pressure by regulating flow, avoid the stifled generation of hydrate and ice, reach compressed natural gas used as vehicle fuel dew point standard-required.
4, to sum up, the drying installation that the utility model is prepared compression biological Sweet natural gas for biogas is simple in structure, and processing efficiency is high, easy to operate, can under the prerequisite that guarantees Disposal quality, effectively reduce running cost according to different requirements and purposes reasonable disposition, be very suitable for promotion and implementation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail, wherein:
Fig. 1 is that the utility model is prepared the process flow sheet of the drying installation of compression biological Sweet natural gas for biogas;
Fig. 2 is the process flow sheet of the dewatering unit I of the utility model drying installation of preparing compression biological Sweet natural gas for biogas;
Fig. 3 is the process flow sheet of the dewatering unit II of the utility model drying installation of preparing compression biological Sweet natural gas for biogas;
embodiment
Embodiment mono-:
Referring to Fig. 1 to 3, in figure, the utility model is prepared the drying installation of compression biological Sweet natural gas for biogas, comprise dewatering unit I and dewatering unit II, between dewatering unit I and II, compressor is installed, washing decarbonizing tower was installed before dewatering unit I, at dewatering unit II venting port, be provided with finished product gas output channel, described dewatering unit I and II are sledge-borne type structure, dewatering unit I and II comprise respectively along gas drying pipeline and are disposed with strainer one, drying tower A, drying tower B and strainer two, also comprise Controlling System, described strainer one top is communicated with drying tower A and B bottom respectively, strainer two tops are communicated with drying tower A and B top respectively, between drying tower A and B, be provided with resurgent gases adverse current thermal regeneration pipeline simultaneously, on resurgent gases adverse current thermal regeneration pipeline, closed-type heater is installed, cooling separator.
In described dewatering unit I, resurgent gases adverse current thermal regeneration pipeline is closed cycle pipeline, and recirculation blower is installed on closed cycle pipeline simultaneously.
In described dewatering unit II, resurgent gases adopts a small amount of finished product gas, between finished product gas output channel and closed-type heater, is provided with reducing valve, and the finished product gas after cooling separator enters low pressure recovery system.
Described on gas drying pipeline, drying tower A and B gas inlet and outlet place be respectively arranged with control valve, simultaneously on resurgent gases circulation line, drying tower A and B gas inlet and outlet place be respectively arranged with control valve.
Described Controlling System comprises non-explosion-proof electric control box and the other explosion-proof start-stop button of machine.
On described resurgent gases circulation line, tensimeter and thermometer are installed simultaneously.Tensimeter and thermometer are installed at the scene and can on-the-spotly show operating pressure, resurgent gases pressure and resurgent gases inlet exhaust gas temperature etc.
Working process of the present utility model and principle specifically describe as follows:
Dewatering unit I series natural gas heats isobaric regenerative dryer and adopts two cone pulleys stream dutys, i.e., during a tower job, another tower is in regeneration or holding state, and the work period that reaches setting manually or automatically carry out the switching of working order.This serial thermal regeneration moisture eliminator is to adopt isobaric, Temp .-changing adsorption principle design.Isobaric, Temp .-changing adsorption is dry is all a kind of physical processes, and the character that it utilizes sorbent material to change with the variation of system temperature the loading capacity of water vapour molecule, by the water vapour molecule fractionation by adsorption in gas, thereby realizes the dry of gas.After absorption reaches capacity, adsorption bed, by the method for high temperature regeneration gas heating, is driven away moisture wherein, thereby realizes the regeneration of sorbent material.
Dewatering unit I series natural gas dryer adopts the technical process of closed cycle adverse current thermal regeneration, utilizes the strong point of Temp .-changing adsorption, adsorbs desorption and regeneration under high temperature (being about 180-250 ℃) system works pressure under inlet air temperature and intake pressure.Resurgent gases is the confining gas in regeneration pipeline, by recirculation blower, it is circulated in resurgent gases pipeline, and sorbent material is carried out to desorption by electric heater after to its heating, after regenerator column is cooling to it by water cooler again after out, enter liquid-gas separator and carry out separating and dehydrating.This flow process is not loss finished product gas, has advantages of that regeneration zero release and energy consumption are low.
Dewatering unit II series natural gas thermal regeneration moisture eliminator adopts two cone pulleys stream dutys, i.e., during a tower job, another tower is in regeneration or holding state, and the work period that reaches setting manually or automatically carry out the switching of working order.This serial thermal regeneration moisture eliminator is to adopt transformation, Temp .-changing adsorption principle design.Transformation, Temp .-changing adsorption are dry is all a kind of physical processes, and the character that it utilizes sorbent material to change with the variation of system pressure, temperature the loading capacity of water vapour molecule, by the water vapour molecule fractionation by adsorption in gas, thereby realizes the dry of gas.After absorption reaches capacity, adsorption bed, by the method for high temperature regeneration gas heating, is driven away moisture content wherein, thereby realizes the regeneration of sorbent material.
Dewatering unit II series natural gas dryer adopts the technical process of adverse current thermal regeneration, utilizes the strong point of transformation and Temp .-changing adsorption, adsorbs, at high temperature (being about 180-230 ℃) and the lower desorption and regeneration of low pressure (2.0-3.0Mpa) under inlet air temperature and intake pressure.Resurgent gases adopts a small amount of finished product gas, after decompression, by electric heater, it is heated, then enter regenerator column absorption has been reached saturated sorbent material and carries out desorption and regeneration, through vent valve, enter again cooling separator after out and carry out separating and dehydrating, return compressor one-level inlet mouth or low pressure withdrawing can.Regeneration system rapidly pressure should be a little more than compressor one-level intake pressure so that resurgent gases recycling.Resurgent gases recycling pipeline should be received separately withdrawing can, can not with the merging such as blow-off line, smooth and easy to ensure the operation of resurgent gases pipeline.
The foregoing is only the schematic embodiment of the utility model; not in order to limit scope of the present utility model; any those skilled in the art is not departing from equivalent variations and the modification of making under the prerequisite of the utility model design and principle, all should belong to the scope of the utility model protection.
Claims (6)
1. a drying installation of preparing compression biological Sweet natural gas for biogas, comprise dewatering unit I and dewatering unit II, between dewatering unit I and II, compressor is installed, washing decarbonizing tower was installed before dewatering unit I, at dewatering unit II venting port, be provided with finished product gas output channel, it is characterized in that: described dewatering unit I and II are sledge-borne type structure, dewatering unit I and II comprise respectively along gas drying pipeline and are disposed with strainer one, drying tower A, drying tower B and strainer two, also comprise Controlling System, described strainer one top is communicated with drying tower A and B bottom respectively, strainer two tops are communicated with drying tower A and B top respectively, between drying tower A and B, be provided with resurgent gases adverse current thermal regeneration pipeline simultaneously, on resurgent gases adverse current thermal regeneration pipeline, closed-type heater is installed, cooling separator.
2. the drying installation of preparing compression biological Sweet natural gas for biogas according to claim 1, is characterized in that: in described dewatering unit I, resurgent gases adverse current thermal regeneration pipeline is closed cycle pipeline, and recirculation blower is installed on closed cycle pipeline simultaneously.
3. the drying installation of preparing compression biological Sweet natural gas for biogas according to claim 1, it is characterized in that: in described dewatering unit II, resurgent gases adopts a small amount of finished product gas, between finished product gas output channel and closed-type heater, be provided with reducing valve, the finished product gas after cooling separator enters low pressure recovery system.
4. the drying installation of preparing compression biological Sweet natural gas for biogas according to claim 1, it is characterized in that: described on gas drying pipeline, drying tower A and B gas inlet and outlet place be respectively arranged with control valve, simultaneously on resurgent gases circulation line, drying tower A and B gas inlet and outlet place be respectively arranged with control valve.
5. the drying installation of preparing compression biological Sweet natural gas for biogas according to claim 1, is characterized in that: described Controlling System comprises non-explosion-proof electric control box and the other explosion-proof start-stop button of machine.
6. the drying installation of preparing compression biological Sweet natural gas for biogas according to claim 1, is characterized in that: on described resurgent gases circulation line, tensimeter and thermometer are installed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649846.9U CN203530266U (en) | 2013-10-22 | 2013-10-22 | Drying device for preparing compressed biogas by using methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649846.9U CN203530266U (en) | 2013-10-22 | 2013-10-22 | Drying device for preparing compressed biogas by using methane |
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| Publication Number | Publication Date |
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| CN203530266U true CN203530266U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320649846.9U Expired - Fee Related CN203530266U (en) | 2013-10-22 | 2013-10-22 | Drying device for preparing compressed biogas by using methane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675681A (en) * | 2017-01-06 | 2017-05-17 | 海南北鸥生物能源开发有限公司 | Vehicle-mounted marsh gas compression, separation and liquefaction tank filling machine |
-
2013
- 2013-10-22 CN CN201320649846.9U patent/CN203530266U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675681A (en) * | 2017-01-06 | 2017-05-17 | 海南北鸥生物能源开发有限公司 | Vehicle-mounted marsh gas compression, separation and liquefaction tank filling machine |
| CN106675681B (en) * | 2017-01-06 | 2019-07-12 | 海南北鸥生物能源开发有限公司 | A kind of vehicle-mounted methane compression separation liquefaction can packing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140409 |