CN209636187U - A kind of bio-natural gas efficient purifying system - Google Patents
A kind of bio-natural gas efficient purifying system Download PDFInfo
- Publication number
- CN209636187U CN209636187U CN201920276807.6U CN201920276807U CN209636187U CN 209636187 U CN209636187 U CN 209636187U CN 201920276807 U CN201920276807 U CN 201920276807U CN 209636187 U CN209636187 U CN 209636187U
- Authority
- CN
- China
- Prior art keywords
- gas
- bio
- natural gas
- hydration reactor
- booster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of bio-natural gas efficient purifying systems, including gas source, scrubbing tower, compressor, deoxidation denitrification column, flash tank, gas booster I, hydration reactor I, gas booster II, stripper, hydration reactor II, condenser, caisson, cleaning solution recycling can；Compared with prior art, after the washed tower processing of the utility model bio-natural gas, enter deoxidation denitrification column after compressor compresses again to be handled, the separation and removing of foreign gas such as hydrogen sulfide, nitrogen and oxygen etc. is realized, to further improve the purification efficiency of bio-natural gas.Meanwhile temperature condition needed for gas hydrate reaction process is realized by constant temperature air bath, further controls the temperature condition and its degree of supercooling of hydration reaction process.Certain density gas hydrate accelerant is added in hydration reactor, realizes that carbon dioxide gas gas hydrate quickly generates, and then improve the purification efficiency of bio-natural gas.
Description
Technical field
The utility model relates to bio-natural gas technical field of energy utilization more particularly to a kind of bio-natural gas are efficiently net
Change system.
Background technique
With the exacerbation of consumption and the environmental pollution of fossil energy, energy is substituted by the biomass of representative of bio-natural gas
Source has become the important channel for solving energy and environmental problem.Bio-natural gas is also referred to as biological flue gas, refers to and converts from biomass
And the combustion gas come, mainly by methane (50%~80%), carbon dioxide (20%~40%), nitrogen (0%~5%), hydrogen sulfide
The gas compositions such as (0.1%~3%), hydrogen (< 1%), oxygen (< 0.4%).Bio-natural gas as a kind of renewable energy,
It can will be built directly as the alternative fuel of petrochemical industry natural gas, extensive development for low-carbon economy, energy security and new rural village
If making bigger contribution.Therefore, it is extremely urgent that new and effective bio-natural gas purification and purification technique are developed.
Currently, separating-purifying obtains the method that high-purity methane gas generallys use substep purification from bio-natural gas.It removes
The common method of carbon dioxide in bio-natural gas mainly has pressure swing adsorption method, absorption process, membrane separation process and low temperature processing
Deng.The method for removing hydrogen sulfide in bio-natural gas mainly has dry desulfurization, wet desulphurization and biological desulphurization etc..However, traditional
Bio-natural gas purification and separation method there are complex process, cost of investment is high, energy consumption is high, separating effect is undesirable, is not easy to
The problems such as industrial-scale production.
In recent years, Chinese patent CN103113945 and CN103113946 discloses a kind of methane purifying system and natural pond respectively
Gas purifying method, this two patents pass through high pressure deoxidation denitrogenation and high pressure deoxidation removal of impurities respectively and amine liquid washs the side combined
Formula, to improve the methane content in biogas.Chinese patent CN104073311 discloses a kind of methane purification purification system,
Realize the separation of foreign gas, using foreign gas different solubility in water to achieve the purpose that methane purification.In addition,
Chinese patent CN105950240 discloses a kind of methane purifying system and its purification method, passes through moisture trap and desulfurizing tower
The purifying of biogas is realized in processing.However, purification separation difficulty is larger due to bio-natural gas complicated composition, seriously affect
The efficiency of combustion of bio-natural gas, limits the purposes of bio-natural gas.
How to realize that the high-efficient purification of bio-natural gas has become technical problem urgently to be resolved.The purification of gas hydrate method
Bio-natural gas is the generation based on gas hydrate, and foreign gas (gases such as CO2, H2S) is allowed to generate gas under certain condition
Gas hydrate, the method for obtaining high-purity methane.In bio-natural gas purification journey, the hydrating agents of decomposition still can be recycled
It utilizes, realizes the high efficiency, low cost purification and purification of bio-natural gas.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of bio-natural gas high-efficient purification system
System.
The utility model achieves the above object through the following technical schemes:
A kind of bio-natural gas efficient purifying system of the utility model, including gas source, scrubbing tower, compressor, deoxidation denitrogenation
Tower, flash tank, gas booster I, hydration reactor I, gas booster II, stripper, hydration reactor II, condenser, storage
Device of air, cleaning solution recycling can；Scrubbing tower is connected to gas source；Scrubbing tower is connected to by compressor with deoxidation denitrification column, and deoxidation is de-
The exit gas of nitrogen tower is by entering hydration reactor I through valve after gas booster I pressurization；Hydration reactor I's works off one's feeling vent one's spleen
Body enters hydration reactor II through valve after gas booster II secondary booster；Gas is handled again through hydration reactor II
Afterwards, caisson is entered by valve；Cleaning solution circulation and stress device includes flash tank, stripper, flash tank by valve with
Scrubbing tower connection, the outlet vapor of stripper enter cleaning solution recycling can after condenser condenses.
Preferably, the bio-natural gas pressure that the gas booster I is provided is 1.5~2.4MPa；The gas
The bio-natural gas pressure that booster II is provided is 2.0~2.8MPa.
A kind of bio-natural gas efficient purifying system of the utility model and purification method, comprising the following steps:
(1) bio-natural gas enters scrubbing tower by gas source, removes hydrogen sulfide and part dioxy in bio-natural gas
Change carbon gas；Exit gas in scrubbing tower passes through compressor compresses, obtains compression biological natural gas, enters back into deoxidation denitrogenation
In tower, for removing nitrogen and a small amount of oxygen in bio-natural gas；
(2) deoxidation denitrification column is connected to by gas booster I and valve with hydration reactor I, the outlet of deoxidation denitrification column
Gas passes through gas booster I, enters hydration reactor I by valve after pressurization, generates carbon dioxide hydrate and removing unit
Divide carbon dioxide gas；
(3) exit gas of hydration reactor I enters hydration reactor II by valve after pressurization through gas booster II
It is handled again, carbon dioxide hydrate is generated by hydration reaction and removes the carbon dioxide gas in bio-natural gas；
Bio-natural gas enters in caisson through valve, and the high-efficient purification of bio-natural gas is realized by multistep treatment；
(4) cleaning solution that foreign gas is absorbed in scrubbing tower enters flash tank by valve, absorbs for removing miscellaneous
Partial impurities gas in the cleaning solution of matter gas, the rich solution being purified；Flash tank is connected to stripper, cleaning solution again into
Enter stripper, for removing the foreign gas in cleaning solution, is condensed by condenser, obtain washing recovered liquid, while can will wash
It washs recovered liquid and is delivered to scrubbing tower and recycled；
(5) by step (1), (2), (3), (4), make bio-natural gas by scrubbing tower, compressor, deoxidation denitrification column,
Biology is realized in the processing of the links such as flash tank, gas booster I, hydration reactor I, gas booster II, hydration reactor II
The high-efficient purification of natural gas；
(6) cleaning solution of foreign gas is absorbed by flash tank, stripper, condenser etc., obtains washing recovered liquid, it is real
Show recycling for cleaning solution, further improves the economy of bio-natural gas purification system；
(7) according to the ingredient of bio-natural gas, multistep treatment through the above steps realizes the efficient net of bio-natural gas
Change, and then obtains high-purity methane.
The utility model has the beneficial effects that:
The utility model is a kind of bio-natural gas efficient purifying system and purification method, compared with prior art, this reality
It is handled, is realized into deoxidation denitrification column with the washed tower processing of new bio natural gas and then after compressor compresses
The separation and removing of foreign gas such as hydrogen sulfide, nitrogen and oxygen etc., to further improve the purification of bio-natural gas
Efficiency.Bio-natural gas is handled after hydration reactor I purified treatment using the double purification of hydration reactor II, real
Efficiently separating and removing for existing carbon dioxide gas, greatly improves the purification efficiency of bio-natural gas.Meanwhile in pipeline system
It is provided with gas booster on system, for providing the pressure condition needed for gas hydrate generates, realizes that gas hydrate is quick
It generates.Scrubbing tower is connected to by valve with flash tank, and the cleaning solution for absorbing foreign gas enters flash tank, and removing absorbs miscellaneous
Partial impurities gas in the cleaning solution of matter gas.Meanwhile flash tank is connected to stripper, is entered by the rich solution that flash distillation obtains
After stripper, the foreign gas in cleaning solution is removed, obtains washing recovered liquid, further washing recovered liquid can be delivered to washing
Tower.Its hydration reactor is made of stainless steel and has form, and form is made of high pressure resistant glass.Meanwhile gas hydrate is reacted
Temperature condition needed for process is realized by constant temperature air bath, further controls the temperature condition and its mistake of hydration reaction process
Cold degree.Certain density gas hydrate accelerant is added in hydration reactor, realizes that carbon dioxide gas gas hydrate is quick
It generates, and then improves the purification efficiency of bio-natural gas.
Detailed description of the invention
Fig. 1 is biological High-efficiency Gas purification system structural schematic diagram.
In figure: 1, gas source；2, scrubbing tower；3, compressor；4, the first valve；5, deoxidation denitrification column；6, flash tank；7, gas
Booster I；8, the second valve；9, hydration reactor I；10, gas booster II；11, third valve；12, stripper；13, water
Close reactor II；14, condenser；15, the 4th valve；16, caisson；17, cleaning solution recycling can.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
A kind of bio-natural gas efficient purifying system of the utility model as shown in Figure 1:, including gas source 1, scrubbing tower 2, compression
Machine 3, deoxidation denitrification column 5, flash tank 6, gas booster I7, hydration reactor I9, gas booster II10, stripper 12, water
Close reactor II13, condenser 14, caisson 16, cleaning solution recycling can 17；Scrubbing tower 2 is connected to gas source 1；Scrubbing tower 2 is logical
Overcompression machine 3 is connected to deoxidation denitrification column 5, and the exit gas of deoxidation denitrification column 5 passes through after gas booster I is pressurized through the second valve
Door 8 enters hydration reactor I9；The exit gas of hydration reactor I9 is after gas booster II10 secondary booster through third valve
Door 11 enters hydration reactor II13；Gas enters gas storage after hydration reactor II13 is handled again, through the 4th valve 15
Device 16；Cleaning solution circulation and stress device includes flash tank 6, stripper 12, and flash tank 6 is connected by the first valve 4 with scrubbing tower 2
Logical, the outlet vapor of stripper 12 enters cleaning solution recycling can 17 after the condensation of condenser 14.
Preferably, the bio-natural gas pressure that the gas booster I7 is provided is 1.5~2.4MPa；The gas
The bio-natural gas pressure that booster II10 is provided is 2.0~2.8MPa.
The purification device is hydration reaction device and washing absorption device；The cleaning solution circulation and stress device packet
Flash tank and stripper are included, obtains recovered liquid for removing the foreign gas adsorbed in the cleaning solution of foreign gas.
Deoxidation denitrification column 5 is connected to compressor 3, for removing the oxygen or nitrogen that contain in bio-natural gas；Described
Compressor 3 is connected to scrubbing tower, forms compression biological natural gas for improving gas pressure.
Hydration reaction device removes the foreign gas carbon dioxide in bio-natural gas for generating gas hydrate；
The hydration reaction device includes hydration reactor I9 and hydration reactor II13；The gas booster I7 and gas increase
Depressor II10, for pressure needed for providing hydration reaction, by the second valve 8 and valve 11 respectively with hydration reactor I9
It is connected to hydration reactor II13.
The washing absorption device is scrubbing tower 2, for removing hydrogen sulfide gas and part two in bio-natural gas
Carbon oxide gas；Cleaning solution selected by the washing absorption device is ethanolamine solutions, ethylene glycol by solution or isopropanol
Amine aqueous solution.
The cleaning solution circulation and stress device is realized by flash tank 6 and stripper 12；The flash tank 6 is used for
Removing absorbs the partial impurities gas in the cleaning solution of foreign gas, the rich solution being purified；The stripper 12 is used for
The foreign gas in cleaning solution is removed, obtains washing recovered liquid, and the recovered liquid is recycled to the scrubbing tower 2.
The deoxidation denitrification column 5 is a kind of tower equipment, and feature is cell structure, disposes filler, gas in order
Bottom in and top out passes sequentially through the adsorbent being fixed on bed.
The hydration reactor I9 and hydration reactor II13 is made of stainless steel and has form, and form is by high pressure resistant
Glass is made；Temperature needed for the hydration reactor I9 and hydration reactor II13 provides hydration reaction by constant temperature air bath
Degree condition.
Certain density gas hydrate accelerant is added in the hydration reactor I9 and hydration reactor II13, is used
In the generating process for accelerating carbon dioxide hydrate, realize that hydrate quickly generates.
The scrubbing tower 2 is connected to by the first valve 4 with flash tank 6.The stripper 12 is connected to condenser 14,
So that outlet vapor is obtained recovered liquid by condensation, and then is delivered to the scrubbing tower 2.
A kind of bio-natural gas efficient purifying system of the utility model and purification method, comprising the following steps:
(1) bio-natural gas enters scrubbing tower 2 by gas source 1, removes the hydrogen sulfide in bio-natural gas and part two
Carbon oxide gas；Exit gas in scrubbing tower 2 is compressed by compressor 3, is obtained compression biological natural gas, is entered back into deoxidation
In denitrification column 5, for removing nitrogen and a small amount of oxygen in bio-natural gas；
(2) deoxidation denitrification column 5 is connected to by gas booster I and valve 8 with hydration reactor I9, deoxidation denitrification column 5
Exit gas pass through gas booster I7, after pressurization by valve 8 enter hydration reactor I9, generate carbon dioxide hydrate and
Remove part carbon dioxide gas；
(3) exit gas of hydration reactor I9 enters water by third valve 11 after pressurization through gas booster II13
It closes reactor II13 to be handled again, two in bio-natural gas is removed by hydration reaction generation carbon dioxide hydrate
Carbon oxide gas；Bio-natural gas enters in caisson 16 through the 4th valve 15, realizes by multistep treatment biological natural
The high-efficient purification of gas；
(4) cleaning solution that foreign gas is absorbed in scrubbing tower 2 enters flash tank 6 by the first valve 4, inhales for removing
The partial impurities gas in the cleaning solution of foreign gas, the rich solution being purified are received；Flash tank 6 is connected to stripper 12, is washed
It washs liquid and is again introduced into stripper 12, for removing the foreign gas in cleaning solution, condensed by condenser 14, obtain washing recycling
Liquid, while washing recovered liquid can be delivered to scrubbing tower and recycled；
(5) by step (1), (2), (3), (4), make bio-natural gas by scrubbing tower 2, compressor 3, deoxidation denitrogenation
The place of the links such as tower 5, flash tank 6, gas booster I7, hydration reactor I9, gas booster II10, hydration reactor II13
Reason, realizes the high-efficient purification of bio-natural gas；
(6) cleaning solution of foreign gas is absorbed by flash tank 6, stripper 12, condenser 14 etc., obtains washing recycling
Liquid realizes recycling for cleaning solution, further improves the economy of bio-natural gas purification system；
(7) according to the ingredient of bio-natural gas, multistep treatment through the above steps realizes the efficient net of bio-natural gas
Change, and then obtains high-purity methane.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (2)
1. a kind of bio-natural gas efficient purifying system, it is characterised in that: including gas source (1), scrubbing tower (2), compressor (3),
Deoxidation denitrification column (5), flash tank (6), gas booster I (7), hydration reactor I (9), gas booster II (10), stripper
(12), hydration reactor II (13), condenser (14), caisson (16), cleaning solution recycling can (17)；Scrubbing tower (2) and gas
Source (1) connection；Scrubbing tower (2) is connected to by compressor (3) with deoxidation denitrification column (5), and the exit gas of deoxidation denitrification column (5) is logical
It crosses after gas booster I pressurization and enters hydration reactor I (9) through the second valve (8)；The exit gas of hydration reactor I (9) passes through
Enter hydration reactor II (13) through third valve (11) after gas booster II (10) secondary booster；Gas is through hydration reactor
After II (13) is handled again, caisson (16) are entered by the 4th valve (15)；Cleaning solution circulation and stress device includes flash distillation
Tank (6), stripper (12), flash tank (6) are connected to by the first valve (4) with scrubbing tower (2), the outlet vapor of stripper (12)
Cleaning solution recycling can (17) are entered after condenser (14) condensation.
2. bio-natural gas efficient purifying system according to claim 1, it is characterised in that: the gas booster I
(7) the bio-natural gas pressure provided is 1.5~2.4MPa；The bio-natural gas pressure that the gas booster II (10) is provided
Power is 2.0~2.8MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920276807.6U CN209636187U (en) | 2019-03-05 | 2019-03-05 | A kind of bio-natural gas efficient purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920276807.6U CN209636187U (en) | 2019-03-05 | 2019-03-05 | A kind of bio-natural gas efficient purifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209636187U true CN209636187U (en) | 2019-11-15 |
Family
ID=68495261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920276807.6U Expired - Fee Related CN209636187U (en) | 2019-03-05 | 2019-03-05 | A kind of bio-natural gas efficient purifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209636187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666522A (en) * | 2019-03-05 | 2019-04-23 | 兰州理工大学 | A kind of bio-natural gas efficient purifying system and purification method |
| CN111420539A (en) * | 2020-05-07 | 2020-07-17 | 兰州理工大学 | Automobile exhaust purification system and method based on gas hydrate method |
| CN111672236A (en) * | 2020-05-19 | 2020-09-18 | 茂名华粤华源气体有限公司 | Preparation method for separating and purifying liquid carbon dioxide |
-
2019
- 2019-03-05 CN CN201920276807.6U patent/CN209636187U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666522A (en) * | 2019-03-05 | 2019-04-23 | 兰州理工大学 | A kind of bio-natural gas efficient purifying system and purification method |
| CN111420539A (en) * | 2020-05-07 | 2020-07-17 | 兰州理工大学 | Automobile exhaust purification system and method based on gas hydrate method |
| CN111672236A (en) * | 2020-05-19 | 2020-09-18 | 茂名华粤华源气体有限公司 | Preparation method for separating and purifying liquid carbon dioxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209636187U (en) | A kind of bio-natural gas efficient purifying system | |
| CN101274203B (en) | Method for removing carbon disulfide gas in production process of viscose fiber | |
| US20110244555A1 (en) | Method and system for purifying raw gases, particularly biogas, for obtaining methane | |
| US20120097027A1 (en) | Method and system for purifying biogas for extracting methane | |
| CN102086417A (en) | Method for purifying marsh gas and recovering elemental sulfur and carbon dioxide | |
| CN111575075A (en) | Method for desulfurizing and decarbonizing methane by combining solid waste and waste alkali liquor | |
| CN109666522A (en) | A kind of bio-natural gas efficient purifying system and purification method | |
| CN102161925A (en) | Process for producing biological natural gas by using methane | |
| CN203639437U (en) | Device for purifying methane of landfill marsh gas | |
| CN103396853A (en) | Technology for preparing natural gas by purifying biogas | |
| Nindhia et al. | Method on conversion of gasoline to biogas fueled single cylinder of four stroke engine of electric generator | |
| CN101863471A (en) | Technology for producing and absorbing CO2 with low temperature methanol | |
| CN103113947A (en) | Methane separation and purification device and method thereof for purifying methane by absorbing CO2 through alkaline method | |
| CN201003050Y (en) | Processing apparatus for producing sulfur-free natural gas using methane | |
| JP2024517292A (en) | System and method for producing nitrogen gas from flue gas with CO2 captured by chemical method | |
| CN216347344U (en) | Device for realizing carbon capture and liquefaction by using ammonia crystallization method | |
| CN210635948U (en) | System for preparing biogas by electrochemically purifying biogas by utilizing electrolytic water technology | |
| CN211971901U (en) | System for preparing energy gas by utilizing anaerobic granular sludge to treat high-concentration wastewater | |
| CN211706407U (en) | Desulfurization system | |
| CN200999239Y (en) | Methane pre-treating apparatus | |
| CN210261105U (en) | Device for preparing various synthesis gases by using yellow phosphorus tail gas | |
| CN106118777A (en) | A kind of marsh gas purifying purifies the method for methane | |
| CN203525539U (en) | Decarbonization device for preparing biogas from methane | |
| CN111362229A (en) | Method for preparing hydrogen for fuel cell from yellow phosphorus tail gas | |
| CN106345232A (en) | Method and device for removing siloxane in biomass gas through two-stage mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20191115 |