CN202460429U - Membrane device for synchronously separating and purifying methane and carbon dioxide in biogas - Google Patents
Membrane device for synchronously separating and purifying methane and carbon dioxide in biogas Download PDFInfo
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- CN202460429U CN202460429U CN201120458173XU CN201120458173U CN202460429U CN 202460429 U CN202460429 U CN 202460429U CN 201120458173X U CN201120458173X U CN 201120458173XU CN 201120458173 U CN201120458173 U CN 201120458173U CN 202460429 U CN202460429 U CN 202460429U
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Abstract
The utility model relates to a membrane device for synchronously separating and purifying methane and carbon dioxide in biogas. The membrane mainly comprises the following five parts: a gas compression system, a precision filtering system, a temperature controllable heating device (9) and a membrane separation control device (10), wherein the gas compression system comprises a compressor (1), a gas water separator (2), an oil mist separator (3), a gas buffer tank (4), a front pressure regulator (5) and a total gas flow meter (6); and the precision filtering system comprises a primary precision adsorber (7) and a secondary precision adsorber (8). The membrane device is characterized in that all the parts and the systems can be integrally arranged on a moving skid, so that the membrane device is conveniently and rapidly used.
Description
Technical field: the utility model relates to the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas, and affiliated technical field is a biomass energy.It is that structure and function that biogas separation and purification device carries out are improved.It is mainly through pressure regulator 5,91,92, controllable temperature heater 9 and film separation control device 10 be connected conversion, obtain the methane and the carbon dioxide of variable concentrations from the difference outlet of membrane separation device, to satisfy the civilian and industrial use demands of difference.This device integral body also can be arranged on movably on the skid plate, in order to convenient and swift use.
Background technology: mainly by gas compositions such as 50%～70% methane and 30%～50% carbon dioxide, calorific value is generally at 20.16MJ/m for the composition when biogas is unprocessed
3～28.98MJ/m
3Between, energy density is low, can only use as domestic energy for a long time.The calorific value of high-purity methane (99%～100%) is 38.22MJ/m
3, can be used as oil substitutes directly as engine fuel.If can from common biogas and rubbish landfill gas, obtain high-purity methane, then can widen the application of China's regenerative resource biogas, solve realistic problems such as vehicle fuel shortage.If obtain high-pureness carbon dioxide, then can be used for industrial circle.This device considers that with low-carbon (LC) theory and recycling economy perfect adaptation the methane of different purity has different purposes with carbon dioxide, through the regulation device of design, can realize the separation and purification of the methane and the carbon dioxide of different purity.
The utility model device utilizes in the process to the biogas purifying exactly; The byproduct carbon dioxide can not effectively utilize and directly be discharged into this weak point of atmosphere; And the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas is provided; It mainly is to utilize a plurality of unit membrane assembly parallel connections to constitute the unit membrane chunk; Between the film chunk through being composed in series multistage film chunk, again through pressure regulator, controllable temperature heater and, the pressure, temperature and the flow that get into membrane module gas are controlled; Realization obtains methane and the high-quality separation and purification respectively of different purity of carbon dioxide and the purpose of recovery the biogas from the difference outlet of membrane separator; It mainly partly is made up of gas compression system, secondary filter system, controllable temperature heater, film separation control device etc., and its major technique characteristics are that the film piece separation assembly in the membrane separation device can be according to gas flow and gas reclaiming rate, and the plural serial stage that carries out a plurality of unit membrane assemblies is with parallelly connected; Be equipped with pressure regulator and controllable temperature heater and gas piping control converter, realize the methane of different purity and the separated in synchronization purifying of carbon dioxide.
Summary of the invention: the deficiency that overcomes prior art; Design the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas; Mainly form by gas compression system, secondary filter system, controllable temperature heater 9 and 10 5 parts of film separation control device; Wherein gas compression system is made up of compressor 1, moisture trap 2, oil mist separator 3, gas buffer jar 4, preceding pressure regulator 5 and total gas couette meter 6; The secondary filter system is made up of accurate absorber 7 of one-level and the accurate absorber 8 of secondary, it is characterized in that all parts and entire system can be arranged on the mobile sled piece.Further the unit membrane assembly in its film separation control device is the independent separate membrane module; Every grade of film block assembly can carry out the increase of parallelly connected unit membrane assembly according to real gas flow needs in film chunks at different levels; Film block assemblies at different levels are to be in series, and it is adjustable that the lengths of frame of support unit membrane module and width can be designed to segmentation with the quantity of unit membrane assembly.
The utility model is used for big-and-middle-sized biogas engineering, rubbish landfill gas methane and carbon dioxide purification usefulness, has following beneficial effect, advantage and characteristics:
1, the needs that different throughputs and gas with various reclaim purity are satisfied in reasonably unit membrane assembly parallel connection and serial connection design;
2, carry out purifying with these parts before, gas only needs simple removal of impurities, dehydration, desulfurization;
3, can carry out the methane of different purity and separating and recovery of carbon dioxide as required;
4, can realize that the methane high-purity reclaims in order to do vehicle fuel;
5, sanitation and hygiene, non-environmental-pollution.
Description of drawings:
Fig. 1: the workflow diagram of the utility model device;
Fig. 2: the film unit modular construction sketch map of the utility model device;
Fig. 3: the film separating controlling assembly work schematic illustration of the utility model device.
A compressor? 2 gas-water separator? 3 oil mist separator? 4 gas buffer tank? Five before the pressure regulator? 6 meter? 7 A8 fine fine adsorber adsorber B? 9 temperature-controlled heating device? 10 film separation device? 21 a membrane permeate or retentate gas outlet 22 two membrane permeate gas outlet? 23 two membrane retentate gas outlet? 24 a gas membrane retentate or permeate gas outlet? 25 a membrane retentate gas or permeate gas meter? 26 two membrane permeate gas meter? 27 two membrane retentate gas meter? 28 a membrane retentate or permeate gas meter? 31 a membrane inlet sampler? 32 a I stage membrane permeability gas sampler? 33 a membrane permeate gas sampler 34 two membrane permeate gas sampler? 35 two membrane retentate gas sampler? 41 a membrane permeate or retentate inlet gas into two films or reflow trachea Road for access control? 42 two membrane gas inlet and a gas line for the finished film adapter? 43 a membrane permeation or retentate gas reflux with a membrane permeation or retentate product gas line for access control? 44 two product gas permeation path for access to the return pipe 45 two membrane retentate product gas path for access to the return pipe is? 51 level module assembly of the first one cell membrane? 52 level module assembly The second membrane module units? 5i level module assembly in the i-th cell membrane? module assembly 61 in two units of the first membrane? 62 two modular components in the first two units membrane? 6i two modular components in the i-th cell membrane? 71 raw gas? 72 purified raw gas? 73 a retentate gas? 74 level permeate? 75 two permeate? 76 two retentate gas? 81 a return air-way check valve? 82 two-way check valve gas seepage reflux? 83 two-way check valve air infiltration I return? 91 a membrane permeate gas pressure regulator? 92 two membrane permeation Air pressure regulator
The specific embodiment:
Handle biogas with 500Nm
3/ hr, temperature is 45 ℃, pressure is that 0.8MPa is an example, carries out the wherein material balance analysis of 2 kinds of operating modes with this device.
1. if this device does not use secondary film piece separation assembly, only use one-level film piece separation assembly, handle biogas with 500Nm
3/ hr, temperature is 45 ℃, when pressure is 0.8MPa; The one-level separation of material EQUILIBRIUM CALCULATION FOR PROCESS analysis in table 1 of one of operating mode wherein; If at this moment regulate pressure regulator 5, controllable temperature heater 9 changes the gas pressure and the temperature that get into film diffusion barrier block assembly; Be equipped with pressure regulator 91 and gas piping converter 41,43 again, then the concentration of component of the gas 73,74 in the gas outlet 21,24 can corresponding change.
Table 1 one-level film separates the material balance of biogas and calculates
Tab.1?The?materiel?balance?computing?of?one?level?membrane?separation?biogas
Whether reflux several kinds of operating modes below can existing according to gas 73:
Operating mode one: 73 is gone out from 24 through 32,41,42,28 as product gas, and 74 go out from 21 through 91,33,41,43,25 as product gas;
Operating mode two: 73 is gone out from 24 through 32,41,42,28 as product gas, and 74 are back to unstripped gas 71 places as backflow gas through 91,33,41,43,81.
2. if this device uses secondary film piece separation assembly that gas is carried out separation and purification, the gas that has refluxes and heavily takes off, and from operating efficiency and operation cost consideration, the gas that backflow is heavily taken off is approaching with the concentration of component of unstripped gas on concentration of component.The secondary separation of material EQUILIBRIUM CALCULATION FOR PROCESS analysis in table 2 of one of operating mode wherein.
Table 2 secondary film separates the material balance of biogas and calculates
Tab.2The?materiel?balance?computing?of?two?levels?membrane?separation?biogas
Ooze residual air or permeate the unstripped gas of gas in conjunction with the one-level film as the secondary film; And if at this moment regulate pressure regulator 5 and controllable temperature heater 9; The gas pressure and the temperature that get into film diffusion barrier block assembly are changed; Be equipped with pressure regulator 91,92 and gas piping converter 41,42,43,44 again, then the concentration of component of the gas 73,74,75,76 in the gas outlet 21,22,23,24 can corresponding change.Several kinds of operating modes below can existing:
Operating mode one: 73 is as product gas, goes out from 21 through 32,41,43,25, and 74 through 91,33,41,42 as secondary film inlet gas, and 75 go out from 22 through 92,34,44,26 as product gas, and 76 go out from 23 through 45,35,27 as product gas.
Operating mode two: 73 is as product gas; Go out from 21 through 32,41,43,25; 74 through 91,33,41,42 as secondary film inlet gas, and 75 are back to unstripped gas 71 places as backflow gas through 92,34,44,82, and 76 go out from 23 through 45,35,27 as product gas.
Operating mode three: 74 is gone out from 21 through 91,33,41,43,25 as product gas, and 73 through 32,41,42 as secondary film inlet gas, and 75 go out from 22 through 92,34,44,26 as product gas, and 76 go out from 23 through 45,35,27 as product gas.
Operating mode four: 74 is gone out from 21 through 91,33,41,43,25 as product gas, and 73 through 32,41,42 as secondary film inlet gas, and 75 go out from 22 through 92,34,44,26 as product gas, and 76 are back to unstripped gas 71 places as backflow gas through 45,83.
Claims (5)
1. the film device of methane and carbon dioxide in the separated in synchronization purifying biogas; Mainly form by gas compression system, secondary filter system, controllable temperature heater (9) and (10) five parts of film separation control device; Wherein gas compression system is made up of compressor (1), moisture trap (2), oil mist separator (3), gas buffer jar (4), preceding pressure regulator (5) and total gas couette meter (6); The secondary filter system is made up of accurate absorber (7) of one-level and the accurate absorber of secondary (8), it is characterized in that all parts and entire system can be arranged on the mobile sled piece.
2. the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas according to claim 1, it is characterized in that: the unit membrane assembly in the described film separation control device (10) is the independent separate membrane module.
3. the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas according to claim 1; It is characterized in that: described film separation control device (10) is made up of secondary film block assembly; Every grade of film block assembly is formed in parallel by a plurality of unit membrane assemblies again according to the gas flow needs, and film block assemblies at different levels are to be in series.
4. the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas according to claim 1; It is characterized in that: described film separation control device (10); Can be according to the actual treatment gas flow; In one-level film chunk and secondary film chunk, carry out the increase of unit membrane assembly, and the lengths of frame of support unit membrane module and width can be designed to segmentation with the quantity of unit membrane assembly adjustable.
5. the film device of methane and carbon dioxide in a kind of separated in synchronization purifying biogas according to claim 1; It is characterized in that: described film separation control device (10); Be by four gas outlets: one-level is oozed residual air outlet (21); One-level infiltration gas outlet (24), secondary infiltration gas outlet (22), secondary oozes residual air outlet (23); Four flowmeters: one-level is oozed residual air or permeating airflow amount meter (25), and (28), secondary permeating airflow amount meter (26), secondary ooze surplus flowmeter (27); Five samplers: film device air inlet sampler (31), one-level ooze residual air sampler (32), one-level infiltration gas sampler (33), and secondary infiltration gas sampler (34), secondary oozes residual air sampler (35); Four pipeline changing-over devices: the one-level membrane permeate gas with ooze residual air and get into secondary film inlet or backflow air pipe changing-over device (41); Secondary film gas access and one-level finished product air pipe changing-over device (42); One-level is permeated or is oozed residual air and refluxes and first class product air pipe changing-over device (43), and secondary oozes residual air product gas and backflow air pipe changing-over device (44); Three one way stop peturn valves: one-level backflow gas one way stop peturn valve (81); Secondary backflow gas one way stop peturn valve (82); Secondary backflow gas one way stop peturn valve (83) and two pressure regulators: one-level membrane permeate gas pressure regulator (91), secondary membrane permeate gas pressure regulator (92) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120458173XU CN202460429U (en) | 2011-11-17 | 2011-11-17 | Membrane device for synchronously separating and purifying methane and carbon dioxide in biogas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120458173XU CN202460429U (en) | 2011-11-17 | 2011-11-17 | Membrane device for synchronously separating and purifying methane and carbon dioxide in biogas |
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|---|---|
| CN202460429U true CN202460429U (en) | 2012-10-03 |
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|---|---|---|---|
| CN201120458173XU Expired - Fee Related CN202460429U (en) | 2011-11-17 | 2011-11-17 | Membrane device for synchronously separating and purifying methane and carbon dioxide in biogas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872684A (en) * | 2011-11-17 | 2013-01-16 | 黑龙江省森林工程与环境研究所 | Film device for synchronously separating and purifying methane and carbon dioxide in biogas |
| CN103272401A (en) * | 2013-06-06 | 2013-09-04 | 南京工业大学 | Membrane and condensation combined oil-gas recovery system |
| WO2014206248A1 (en) * | 2013-06-24 | 2014-12-31 | 北京合力清源科技有限公司 | Container-type biogas purification film method purification system |
| CN110760354A (en) * | 2019-10-31 | 2020-02-07 | 广东石油化工学院 | Biogas purification and purification device for livestock and poultry manure biogas digester |
| CN115105930A (en) * | 2021-03-17 | 2022-09-27 | 中国科学院过程工程研究所 | Multifunctional hollow fiber membrane gas separation and purification system and method |
-
2011
- 2011-11-17 CN CN201120458173XU patent/CN202460429U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872684A (en) * | 2011-11-17 | 2013-01-16 | 黑龙江省森林工程与环境研究所 | Film device for synchronously separating and purifying methane and carbon dioxide in biogas |
| CN103272401A (en) * | 2013-06-06 | 2013-09-04 | 南京工业大学 | Membrane and condensation combined oil-gas recovery system |
| WO2014206248A1 (en) * | 2013-06-24 | 2014-12-31 | 北京合力清源科技有限公司 | Container-type biogas purification film method purification system |
| US9975085B2 (en) | 2013-06-24 | 2018-05-22 | Beijing Helee Bio-Energy Ltd. | Container-type biogas purification film method purification system |
| CN110760354A (en) * | 2019-10-31 | 2020-02-07 | 广东石油化工学院 | Biogas purification and purification device for livestock and poultry manure biogas digester |
| CN115105930A (en) * | 2021-03-17 | 2022-09-27 | 中国科学院过程工程研究所 | Multifunctional hollow fiber membrane gas separation and purification system and method |
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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 |
Granted publication date: 20121003 Termination date: 20171117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |