CN206535385U - The device of siloxanes in two-part removing biogas - Google Patents
The device of siloxanes in two-part removing biogas Download PDFInfo
- Publication number
- CN206535385U CN206535385U CN201621082828.7U CN201621082828U CN206535385U CN 206535385 U CN206535385 U CN 206535385U CN 201621082828 U CN201621082828 U CN 201621082828U CN 206535385 U CN206535385 U CN 206535385U
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- CN
- China
- Prior art keywords
- biogas
- gas
- siloxanes
- cleaning system
- absorption tower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/20—Capture or disposal of greenhouse gases of methane
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- Gas Separation By Absorption (AREA)
Abstract
The utility model is related to the device of siloxanes in field of renewable energy resource utilization, especially a kind of two-part removing biogas；Including preprocessing system, first paragraph biogas cleaning system and second segment biogas cleaning system；It is that the biogas for carrying solid phase and liquid phase impurity is passed through well strainer and gas-liquid two-phase vertical separator according to this, removes water, foam and solid particle in biogas；Obtained biogas is passed through the tourie equipped with methyldiethanolamine solution, removes the hydrogen sulfide in biogas；Then pressurization is passed through absorption tower, into first and second sections of biogas purification techniques, stores methane gas.The utility model is by using the siloxanes in two-phase method removing biogas, the methane gas being purified, and the removal efficiency of siloxanes is up to more than 99%；The utility model is significant to reduction atmosphere pollution, Optimization of Energy Structure.
Description
Technical field
The utility model is related to field of renewable energy resource utilization, siloxanes in especially a kind of two-part removing biogas
Device.
Background technology
Biogas has developed marsh gas power generation, biogas and the resource such as has heated as a kind of new and effective renewable green energy resource
Change utilizes technology, and biogas can reduce the discharge of greenhouse gases, molecule and oxynitrides, with wider as fuel
Wealthy development space and multiple economic and environmental benefit.The biogas that landfill yard and sludge of sewage treatment plant anaerobic digestion are produced
In addition to the key components such as methane, carbon dioxide, also contain other components, such as hydrogen sulfide and siloxanes, the presence of siloxanes is tight
Ghost image rings biogas and used, and hinders the use value of biogas.The adverse effect that wherein siloxanes is applied to biogas is very big.
In recent years, many research institutions assessed siloxanes to the mankind and the risk of environment.Bureau for Environmental Protection of Denmark has been sent out
Existing HMDO can stimulate skin, influence kidney, HMDO is classified as into dangerous substance.EPA
Report and point out with Corning Incorporated：Decamethylcyclopentaandoxane is probably carcinogen.Canada it is reported that：In municipal water supply
It is middle to there is the existence that siloxanes is unfavorable for fish and aquatic tissue, while octamethylcy-clotetrasiloxane, decamethylcyclopentaandoxane shadow
Hormonal secretion is rung, it is possible to influence mankind's breeding.China is siloxanes big producer, the danger caused to surrounding environment
Evil is immeasurable.
Purify siloxane treated and mainly use absorption method, absorption process, cryogenic condensation, biological method, Catalytic processes, UF membrane
Method, gas-permeable membrane separation etc..
Patent CN201210393660.1 " a kind of device and method of removal siloxane from combustible gas gas " is described
A kind of method and apparatus that use silica gel adsorption removes the siloxanes in fuel gas, this method utilizes silica gel absorption, its
Efficiency can be influenceed by moisture in gas, in addition, the regeneration temperature of adsorbent is higher, it is necessary to which substantial amounts of regenerated heat, is added
Cost.
Utility model content
The technical problems to be solved in the utility model is：Siloxanes in a kind of inexpensive deep removal biogas is provided
And reclaim the device of methane.
The utility model solves the technical scheme that its technical problem used：Silicon in a kind of two-part removing biogas
The device of oxygen alkane, including preprocessing system, first paragraph biogas cleaning system, second segment biogas cleaning system；
Described preprocessing system includes well strainer, gas-liquid two-phase vertical separator, methyl diethanolamine fluid reservoir
And compressor；Described well strainer connects unstripped gas by suction line, and vertical through outlet line connection gas-liquid two-phase
Separator；Described gas-liquid two-phase vertical separator discharging tube is provided with fluid level control valve, and gas vent is provided with demister；Gas is passed through
Enter after demister on demister outlet line, demister outlet line and pressure-control valve is installed；Described gas-liquid two-phase is stood
The outlet gas line connection methyl diethanolamine fluid reservoir of formula separator；The outlet of described methyl diethanolamine fluid reservoir connects
Suction port of compressor is connect, the outlet line of compressor is connected to be equipped with the entrance of first paragraph biogas cleaning system, connecting pipeline
Valve；
Described first paragraph biogas cleaning system includes absorbing flow container, centrifugal pump, absorption tower, connecting pipeline and control
Valve；The described absorbing liquid absorbed in flow container is inhaled by centrifugal pumping absorption tower top entry, the connection of absorption tower outlet at bottom
Receive flow container；Biogas enters from absorption tower bottom air inlet, the gas outlet connection second segment biogas purification system on absorption tower
The entrance of system；
Described second segment biogas cleaning system include ultrasonic wave slot type phonochemical reaction device, concentrated sulfuric acid fluid reservoir,
Methane recovery tank and connecting pipeline and control valve；The entrance of concentrated sulfuric acid fluid reservoir connects the gas outlet on absorption tower, biomass
After gas further removes siloxanes through the concentrated sulfuric acid, into the storage of methane recovery tank.
Further, in order to improve removal effect of the concentrated sulfuric acid to siloxanes, the concentrated sulfuric acid described in the utility model is stored up
Flow container is arranged in ultrasonic wave slot type phonochemical reaction device.
The method of siloxanes comprises the following steps in two-part removing biogas：
1) biogas for carrying solid phase and liquid phase impurity is passed through well strainer and vertical point of gas-liquid two-phase according to this
From device, water, foam and the solid particle in biogas are removed；
2) by step 1) the obtained biogas of processing is passed through the tourie equipped with methyldiethanolamine solution, removes biological
Hydrogen sulfide in matter gas；
3) by above-mentioned steps 2) absorption tower is passed through after the pressurization of obtained biogas, purify work into first paragraph biogas
Skill, the silica in absorption cleaning processing, preliminary removing biogas is carried out to the biogas containing siloxanes using absorbent
Alkane；
4) by above-mentioned steps 3) obtain it is preliminary be stripped of being passed through in the concentrated sulfuric acid of additional ultrasonic irradiation of siloxanes, enter
Row second segment biogas purification technique, further removes the siloxanes in biogas；
5) by above-mentioned steps 4) obtained biogas is passed through air accumulator, stores methane gas.
Further, siloxanes described in the utility model is HMDO, octamethyltrisiloxane, ten first
Base tetrasiloxane, hexamethyl cyclotrisiloxane, octamethylcy-clotetrasiloxane, decamethylcyclopentaandoxane, the silicon of ten diformazan basic ring six
One kind or at least two combination in oxygen alkane.
Further say, the concentration of siloxanes is more than 10mg/Nm in biogas described in the utility model3。
Further say, the operation temperature of first paragraph biogas purification described in the utility model is normal temperature.
Further say, the concentration of the concentrated sulfuric acid described in the utility model is 92%-97%, and temperature is 50-65 DEG C.
Further say, absorbent described in the utility model is by NHD, phenanthrene, para-terpheny and 12
Sodium alkyl benzene sulfonate is formed according to certain ratio compounding.Wherein the mass fraction of NHD is 45%~70%,
Luxuriant and rich with fragrance mass fraction is 25%~40%, and the mass fraction of para-terpheny is 5%~15%；Described 2- octyldodecyl sulphur
The concentration that sour sodium accounts for absorbent total solution is 2 × 10-4~5 × 10-4mol/L.
The beneficial effects of the utility model are：
1. the utility model removes the siloxanes in biogas, the methane gas being purified by using two-phase method
Body, the removal efficiency of siloxanes is up to more than 99%；
2. the utility model is significant to reduction atmosphere pollution, Optimization of Energy Structure.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is process structure schematic diagram of the present utility model；
In figure：1- well strainers；3- gas-liquid two-phase vertical separators；4- demisters；5- froth breaking plates；6- Liquid levels
Valve；7- pressure-control valves；8- methyl diethanolamine fluid reservoirs；9- gas compressors；11- absorption towers；12- absorption towers air inlet；
13- absorption towers gas outlet；15- concentrated sulfuric acid fluid reservoirs；17- ultrasonic wave slot type phonochemical reaction devices；18- transducers；19- wires；
20- supersonic generators；22- methane recovery tanks；25- centrifugal pumps；27- absorbs flow container；2,10,14,16,19,21,23,24,
26- control valves.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing and preferred embodiment.These accompanying drawings are letter
The schematic diagram of change, only illustrates basic structure of the present utility model in a schematic way, therefore it only shows relevant with the utility model
Composition.
As shown in figure 1, device is net including pretreatment system, first paragraph biogas cleaning system, second segment biogas
Change system.
Preprocessing system includes well strainer 1, gas-liquid two-phase vertical separator 3, a methyl diethanol
Amine fluid reservoir 8 and a gas compressor 9.Unstripped gas enters well strainer 1 by pipeline, removes after solid particle, through going out
Mouth pipeline enters gas-liquid two-phase vertical separator 3.Gas-liquid two-phase vertical separator discharging tube is provided with fluid level control valve 6, and gas goes out
Mouth is provided with demister 4.Gas is provided with pressure-control valve 7 through the laggard inlet/outlet pipeline of demister 4 on outlet line.Gas-liquid two
Hydrogen sulfide in the outlet gas line connection methyl diethanolamine fluid reservoir of phase vertical separator, biogas is by methyl diethyl
Alkanolamine solution absorbs.Methyl diethanolamine fluid reservoir outlet connection suction port of compressor, the connection first paragraph life of compressor outlet pipeline
Valve is housed in the entrance of material gas cleaning system, connecting pipeline.
First paragraph biogas cleaning system includes one and absorbs flow container 27, centrifugal pump 25, absorption tower 11, a company
Adapter line and control valve.The absorbing liquid absorbed in flow container 27 send the top entry of absorption tower 11 by centrifugal pump 25, and absorbing liquid is inhaled
Receive after the siloxanes in biogas, absorption flow container 27 is returned to from outlet at bottom.Biogas is from the bottom air inlet of absorption tower 11
Mouth enters, and absorbed liquid is removed after siloxanes, from gas outlet outflow, into the entrance of second segment biogas cleaning system.
Second segment biogas cleaning system includes：One ultrasonic wave slot type phonochemical reaction device 17, a concentrated sulfuric acid storage
Flow container 15, a methane recovery tank 22 and connecting pipeline and control valve.Come out from first paragraph biogas cleaning system
Biogas enters the entrance of concentrated sulfuric acid fluid reservoir 15 by pipeline, after biogas further removes siloxanes through the concentrated sulfuric acid,
Into methane recovery tank storage 22.Concentrated sulfuric acid fluid reservoir is irradiated by ultrasonic wave slot type phonochemical reaction device 17, to improve the concentrated sulfuric acid
To the removal effect of siloxanes.
Technological process is as follows：It is 250mg/Nm by silicone-containing concentration3Biogas be passed through well strainer 1, remove
Solid particle therein.Then gas is passed through the water and foam in gas-liquid two-phase vertical separator 3, removing biogas.
In separator, liquid sedimentation is discharged in the bottom of separator through fluid level control valve 6；Gas pass through except mist eliminator 4 remove small droplet it
Gas compressor 8 is passed through by pressure-control valve 7.Biogas is passed through absorption tower air inlet 12 after being pressurized through compressor 8；Together
When, the absorbing liquid absorbed in flow container 27 pumps the top for entering absorption tower 11 by centrifugal pump 25；In absorption tower, biogas
In siloxanes be absorbed by liquid absorption.Absorbing liquid, which absorbs to return through control valve 16 after siloxanes, to be absorbed in flow container 27, and is removed
The biogas of siloxanes enters concentrated sulfuric acid fluid reservoir 15 from absorption tower gas outlet 13, further the silicon in removing biogas
Oxygen alkane.The concentration of the concentrated sulfuric acid is 97%, and temperature is 60 DEG C.The biogas come out from concentrated sulfuric acid fluid reservoir 15 is stored in methane and deposited
In storage tank 22.
Siloxanes is completed in absorption tower after first paragraph purification in biogas, and the extrusion rate of siloxanes is 91.23%；Through
Overrich sulfuric acid absorption is completed after second segment purification, the removal efficiency 99.54% of siloxanes.
Simply embodiment of the present utility model described in description above, various illustrations are not to this practicality
New substantive content is construed as limiting, and person of an ordinary skill in the technical field can be to former institute after specification has been read
The embodiment stated is made an amendment or deformed, without departing from the spirit and scope of utility model.
Claims (2)
1. the device of siloxanes in a kind of two-part removing biogas, it is characterised in that：Given birth to including preprocessing system, first paragraph
Material gas cleaning system and second segment biogas cleaning system；
Described preprocessing system includes well strainer, gas-liquid two-phase vertical separator, methyl diethanolamine fluid reservoir and pressure
Contracting machine；Described well strainer connects unstripped gas by suction line, and connects the vertical separation of gas-liquid two-phase through outlet line
Device；Described gas-liquid two-phase vertical separator discharging tube is provided with fluid level control valve, and gas vent is provided with demister；Gas is through demisting
Enter after device on demister outlet line, demister outlet line and pressure-control valve is installed；Vertical point of described gas-liquid two-phase
Outlet gas line from device connects methyl diethanolamine fluid reservoir；The outlet connection pressure of described methyl diethanolamine fluid reservoir
Contracting machine entrance, the outlet line of compressor connects and valve is housed in the entrance of first paragraph biogas cleaning system, connecting pipeline；
Described first paragraph biogas cleaning system includes absorbing flow container, centrifugal pump, absorption tower, connecting pipeline and control valve
Door；The described absorbing liquid absorbed in flow container is absorbed by centrifugal pumping absorption tower top entry, the connection of absorption tower outlet at bottom
Flow container；Biogas enters from absorption tower bottom air inlet, the gas outlet connection second segment biogas cleaning system on absorption tower
Entrance；
Described second segment biogas cleaning system includes ultrasonic wave slot type phonochemical reaction device, concentrated sulfuric acid fluid reservoir, methane
Recycling can and connecting pipeline and control valve；The entrance of concentrated sulfuric acid fluid reservoir connects the gas outlet on absorption tower, biogas warp
The concentrated sulfuric acid is further removed after siloxanes, into the storage of methane recovery tank.
2. the device of siloxanes in two-part removing biogas as claimed in claim 1, it is characterised in that：Described dense sulphur
Sour fluid reservoir is arranged in ultrasonic wave slot type phonochemical reaction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082828.7U CN206535385U (en) | 2016-09-26 | 2016-09-26 | The device of siloxanes in two-part removing biogas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082828.7U CN206535385U (en) | 2016-09-26 | 2016-09-26 | The device of siloxanes in two-part removing biogas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206535385U true CN206535385U (en) | 2017-10-03 |
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ID=59936829
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621082828.7U Expired - Fee Related CN206535385U (en) | 2016-09-26 | 2016-09-26 | The device of siloxanes in two-part removing biogas |
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| Country | Link |
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| CN (1) | CN206535385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345232A (en) * | 2016-09-26 | 2017-01-25 | 常州工程职业技术学院 | Method and device for removing siloxane in biomass gas through two-stage mode |
-
2016
- 2016-09-26 CN CN201621082828.7U patent/CN206535385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345232A (en) * | 2016-09-26 | 2017-01-25 | 常州工程职业技术学院 | Method and device for removing siloxane in biomass gas through two-stage mode |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20190926 |
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| CF01 | Termination of patent right due to non-payment of annual fee |