CN105498485B - The separation method and its system of methane in a kind of mixed empty coal bed gas - Google Patents
The separation method and its system of methane in a kind of mixed empty coal bed gas Download PDFInfo
- Publication number
- CN105498485B CN105498485B CN201410494203.0A CN201410494203A CN105498485B CN 105498485 B CN105498485 B CN 105498485B CN 201410494203 A CN201410494203 A CN 201410494203A CN 105498485 B CN105498485 B CN 105498485B
- Authority
- CN
- China
- Prior art keywords
- hydrate
- entrance
- coal bed
- methane
- section
- 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
- Solid Fuels And Fuel-Associated Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention provides the separation method and its system of methane in a kind of mixed empty coal bed gas, which includes making mixed empty coal bed gas that hydration reaction occur, and collects the process of methane-rich gas, wherein, realizing the hydration reactor of hydration reaction has with lower structure：Hydration reactor cavity has entrance, trunnion section and stable section along hydrate working solution flow direction, and the circulation area of trunnion section is respectively less than the circulation area of entrance and stable section, and the side wall which corresponds to trunnion section offers air inlet.The step of methane is needed to mixed empty coal bed gas compression boosting in the mixed empty coal bed gas of existing hydrate separation method separation is not required in the separation method of methane in mixed empty coal bed gas provided by the invention, the danger of mixed empty coal bed gas compression process and the explosion of high-pressure flow process is avoided, has the advantages that safe operation, practical application in industry feasibility are strong.
Description
Technical field
The present invention relates to the separation method and its system of methane in a kind of mixed empty coal bed gas, belong to chemical technology field.
Background technology
Coal bed gas (Coal Bed Methane, abbreviation CBM), also known as coal mine gas or mine gas, result from coal-forming mistake
Journey, is a kind of unconventional gas resource using methane as main component mainly with adsorbed state preservation in coal seam.
At present, the major way of exploiting coal bed methane is ground drilling and underground extraction.Ground drilling technology coal seam abroad
Using relatively more in the exploitation of gas, and Chinese Geological situation is complicated, and the gas permeability in most of coal seam is poor, by technology and ground
The restriction of matter condition, using more still underground extraction technologies in the exploitation of China coal bed gas.Using direct drilling well
Methane content is generally higher than 90% in the coal bed gas that technology obtains, close with conventional natural gas composition, can be directly using
The natural gas pretreating process processing purification of comparative maturity, is then passed through gas distributing system after direct liquefaction accumulating or pressurization.Adopt
The coal bed gas obtained with underground extraction technology generally can all be mixed into air, and (usual volume fraction is in 30%- than relatively low for methane content
80%), only very least a portion of underground extraction coal bed gas is efficiently used at present, most of to be directly discharged into air,
Cause the very big wasting of resources and environmental pollution.
Separation and recycling of many researchers to methane in mixed empty coal bed gas in recent years has carried out substantial amounts of research, existing use
The method of methane has low-temperature deep partition method, membrane separation process, pressure-variable adsorption partition method and hydrate in the mixed empty coal bed gas of separation
Partition method.But the above method but there are it is different the defects of, constrain the recycling of methane in mixed empty coal bed gas.
Low-temperature deep isolation technics is to utilize the boiling point of each component in coal bed gas different, using cryogenic rectification and liquefied side
Formula separates each component.Isolation technics requirement is operated at -150 DEG C or so, and energy consumption is higher, because in mixed sky coal bed gas
It is oxygen-containing, it is necessary to carry out deoxidation first, there are the danger of explosion；Membrane separation technique is each component according to gaseous mixture in certain pressure difference
The lower transfer rate through film is different and realizes.But the membrane material developed at present is to the key component CH in coal bed gas4
And N2Separating effect it is bad, while there is also the danger of explosion；PSA Technology is in a constant temperature using adsorbent
The difference of each component adsorption capacity in gaseous mixture is realized under degree and pressure.By the development of decades, pressure-variable adsorption point
From H2、N2And O2Worldwide all generally used etc. technology, but also do not used pressure-variable adsorption partition method at home at present
The example of the commercial Application of the mixed empty coal bed gas of separation.
Above-mentioned three kinds of isolation technics are not implemented industrialized main reason is that mixed sky coal bed gas is easily exploded, it is impossible to protect
Demonstrate,prove the safety of separation process.Hydrate separation method is a kind of isolation technics of new separation low boiling point mixed gas, and principle is root
The complexity of hydrate is formed according to gas with various, so as to fulfill the separation of each component in mixed gas.Existing hydrate separation
Method can be such that the separation of mixed empty coal bed gas is carried out in the environment of water saturation, but because the separation of hydrate is needed certain
Carried out under pressure, the danger that early period implements to equally exist explosion in compression boost process to mixed empty coal bed gas is equally difficult to use.
Therefore, a kind of new separation method how is worked out, the separation and utilization of methane in mixed empty coal bed gas is realized, has very much
It is necessary.
The content of the invention
Technical problem solved by the invention is, there is provided the separation method of methane and its is in a kind of mixed empty coal bed gas
System, this method are not required methane in the mixed empty coal bed gas of existing hydrate separation method separation to need to mixed empty coal bed gas compression boosting
Step, avoids the danger of mixed empty coal bed gas compression process and the explosion of high-pressure flow process, has safe operation, actual industrial should
With feasibility it is strong the advantages of.
The present invention provides a kind of separation method of methane in mixed empty coal bed gas, including make mixed empty coal bed gas generation hydration anti-
Should, and the process of methane-rich gas is collected, wherein,
Realizing the hydration reactor of hydration reaction has with lower structure：Hydration reactor cavity is flowed along hydrate working solution
Direction has entrance, trunnion section and stable section, and the circulation area of trunnion section is respectively less than the circulating face of entrance and stable section
Product, the side wall which corresponds to trunnion section offer air inlet；
The separation method includes：Hydrate working solution is sent into the hydration reactor from entrance, makes mixed empty coal
Layer gas is connected by air inlet with hydration reactor, and the suction produced using the hydrate working solution for flowing through trunnion section will be to be separated
Mixed sky coal bed gas suction hydration reactor, and the two is mixed during stable section is flow to and hydration reaction is occurred, generate
Hydrate slurry and methane lean gas；
The hydrate slurry and methane lean gas are sent into hydrate separator, make the methane lean gas from hydrate separation
The top exit of device is discharged and is collected, and outlet at bottom of the hydrate slurry through hydrate separator is sent into hydration materialization
Solve device and implement neutralizing, separate and collect methane-rich gas, dissolve the hydrate working solution of the removing gas for hydration reaction cycle
Use.
The separation method of methane, mainly make use of hydromechanical principle, utilizes hydrate work in above-mentioned mixed empty coal bed gas
Make the flowing of diverse location of the liquid in hydration reactor and the changing rule of pressure, realize mixed empty coal bed gas suction, from
Boosting and the process of hydration separation.It is in particular in：Hydrate working solution is injected from the entrance of hydration reactor, when it
When reaching the trunnion section of hydration reactor, since actual internal area drastically reduces, so that its flow velocity increases suddenly, make hydration anti-
The static pressure in device is answered quickly to reduce, under the action of pressure differential, mixed sky coal bed gas has been inhaled into hydration reactor and hydrate
Working solution mixes, when mixed empty coal bed gas reaches the stable section of hydration reactor with hydrate working solution, due to actual internal area
Expansion so that fluid static pressure rise, when fluid static pressure be more than hydrate generation pressure when, mix sky coal bed gas in
With hydrate working solution hydration reaction occurs for methane, forms hydrate slurry, and mixes the aeriferous part of institute in empty coal bed gas
Gas phase obtains enrichment and forms methane lean gas.
In the embodiment of the present invention, temperature when making the hydrate working solution enter hydration reactor is 4-15
DEG C, pressure 0.6-5.1MPa.Hydrate working solution under the temperature and pressure is more advantageous to flowing through trunnion section formation pressure at it
Force difference, so as to be conducive to the stable section that mixed empty coal bed gas is inhaled into gas hydrate reactor, is allowed to carry out with hydrate working solution
Hydration reaction, forms hydrate slurry.
In the embodiment of the present invention, the internal diameter of the pipeline of the entrance of the hydration reactor is 15-50mm, institute
The internal diameter of the pipeline ratio of the internal diameter and the entrance of stating trunnion section is 0.05-0.5, the diameter of the air inlet and the trunnion
The internal diameter ratio of section is 0.2-0.5；
The internal diameter of the pipeline ratio of the length of the entrance and the entrance is 1-3, the trunnion segment length with it is described
The internal diameter ratio of trunnion section is 1-2.5, and the length of the stable section and the internal diameter of the pipeline ratio of the entrance are 3-5.
In the embodiment of the present invention, the operation temperature of the hydrate separator is 4-15 DEG C, operating pressure
For 0.6-5.1MPa.Aforesaid operations temperature and operating pressure is controlled to make hydrate slurry and mixed sky in hydrate separator
Air in coal bed gas separates completely as far as possible, realizes the separation of gas phase and liquid phase.
In the embodiment of the present invention, the operation temperature of the hydrate neutralizing device is 8-23 DEG C, operating pressure
For 0.1-2.1MPa.Control aforesaid operations temperature and pressure can make hydrate slurry complete as far as possible in hydrate dissolves device
Full neutralizing obtains methane-rich gas and removes the hydrate working solution of gas, realizes the separation of methane and air in mixed empty coal bed gas.
In the embodiment of the present invention, mixed empty coal bed gas to be separated is inhaled into the pressure before hydration reactor and is less than
0.6MPa。
Present invention also offers the system for realizing the separation method of methane in above-mentioned mixed empty coal bed gas, the system comprises water
Compound work liquid storage tank, hydration reactor, hydrate separator, hydrate neutralizing device, heater and/or pressure reducing valve；
Wherein, hydration reactor cavity has entrance, trunnion section and stable section along hydrate working solution flow direction, and
The circulation area of trunnion section is respectively less than the circulation area of entrance and stable section, which corresponds to trunnion section
Side wall offers air inlet；
The hydrate work liquid storage tank is equipped with entrance and exit, the outlet of the hydrate work liquid storage tank and the water
Close the entrance connection of reactor；
The hydration reactor stable section, which is equipped with, to be used to discharge the outlet of hydrate slurry and methane lean gas, itself and the water
The entrance connection of compound separator, the top of the hydrate separator are equipped with methane lean gas floss hole, and bottom is equipped with hydrate
Serum outlet；
The hydrate slurry outlet of the hydrate separator is connected with the entrance of hydrate neutralizing device, and is set between the two
Having heaters and/or pressure reducing valve, the hydrate working solution outlet of the removing gas of the hydrate neutralizing device and the hydrate
The entrance connection of work liquid storage tank.
In said system, the internal diameter of the pipeline of the entrance of the hydration reactor is 15-50mm, the trunnion section it is interior
The internal diameter of the pipeline ratio of footpath and the entrance is 0.05-0.5, the diameter of the air inlet and the internal diameter ratio of the trunnion section
For 0.2-0.5；
The internal diameter of the pipeline ratio of the length of the entrance and the entrance is 1-3, the trunnion segment length with it is described
The internal diameter ratio of trunnion section is 1-2.5, and the length of the stable section and the internal diameter of the pipeline ratio of the entrance are 3-5.
The separation method of methane, employs structually improved hydration reactor, ingeniously in mixed empty coal bed gas provided by the invention
Change wonderfully by circulation area in hydration reactor and the required hydrating condition of mixed empty coal bed gas (hydration generation pressure) be provided,
That is, pressure drop caused by trunnion section (even up to parital vacuum) is being flowed through by mixed empty coal seam aspiration using hydrate working solution
After entering hydration reactor, and during flowing to stable section due to pressure increase and the two being sufficiently mixed under pressure-driven
And promote the methane in mixed empty coal bed gas to be all hydrated as far as possible, achieve the purpose that separation of methane.Compared at present to mixed
Empty coal bed gas carries out separated technique, and separation method of the invention need not treat separated mixed empty coal bed gas and be compressed liter
Pressure, not only eliminates the input of compression device, significantly reduces energy consumption, without extra rabbling mechanism during hydration reaction, and
And the requirement to operating space and operational sequence all significantly reduces, the separation of methane in mixed empty coal bed gas is realized, for the technology
Industrial applications provide possibility.
Brief description of the drawings
Fig. 1 is the process flow chart of methane in the mixed empty coal bed gas of present invention separation.
Fig. 2 is the hydration reactor in methane system in the mixed empty coal bed gas of present invention separation.
Reference numeral：
1- hydrates work liquid storage tank；2- hydration reactors；3- hydrate separators；4- hydrates dissolve device；5- high pressures
Pump；6- coolers；7- heaters；8- pressure reducing valves；9- hydrate working solutions；10- mixes empty coal bed gas；
01- entrances；02- trunnion sections；03- expanding reach；04- air inlets.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that and described embodiment is part of the embodiment of the present invention, rather than entirely
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiments obtained, belong to the scope of protection of the invention.
The separation method of methane in the mixed empty coal bed gas of the present invention, including make mixed empty coal bed gas that hydration reaction occur, and collect
The process of methane-rich gas, wherein,
The hydration reactor of hydration reaction is realized as shown in Fig. 2, with lower structure：Hydration reactor cavity is along hydrate
Working solution flow direction has entrance 01, trunnion section 02 and stable section 03, and the circulation area of trunnion section 02 is respectively less than entrance
The circulation area of section 01 and stable section 03, the side wall which corresponds to trunnion section 02 offer air inlet 04；
Wherein, the internal diameter of the pipeline of the entrance 01 of hydration reactor is 15-50mm, the internal diameter of trunnion section 02 with the pipeline of entrance 01
Footpath ratio is 0.05-0.5, and the diameter of air inlet 04 and the internal diameter ratio of trunnion section 02 are 0.2-0.5；The length of entrance 01 with
The internal diameter of the pipeline ratio of entrance 01 is 1-3, and the internal diameter ratio of 02 length of trunnion section and trunnion section 02 is 1-2.5, stable section 03
The internal diameter of the pipeline ratio of length and entrance 01 be 3-5.
As shown in Figure 1, the separation method of methane includes in the mixed empty coal bed gas of the present invention：By in hydrate work liquid storage tank 1
Hydrate working solution 9 after high-pressure pump 5 and cooler 6, from entrance 01 be sent into hydration reactor 2 in, hydrate is worked
Temperature when liquid 9 enters hydration reaction 2 is 4-15 DEG C, pressure 0.6-5.1MPa.Mixed empty coal bed gas 10 is set to pass through air inlet 04
Connected with hydration reactor 2, mixed empty coal bed gas 10 to be separated is inhaled into the pressure before hydration reactor 2 and is less than 0.6MPa, utilization
Mixed empty coal bed gas 10 to be separated is sucked hydration reactor 2 by the suction for flowing through the generation of hydrate working solution 9 of trunnion section 02, and is made
The two is mixed during stable section 03 is flow to and hydration reaction occurs, and generates hydrate slurry and methane lean gas；
Hydrate slurry and methane lean gas are sent into hydrate separator 3, the operation temperature of hydrate separator 3 is 4-15
DEG C, operating pressure 0.6-5.1Mpa, makes methane lean gas be collected from the top exit discharge of hydrate separator 3, by water
Outlet at bottom of the compound slurries through hydrate separator 3, hydrate neutralizing 4 implementationization of device is sent into after heated device 7 and pressure reducing valve 8
Solution, the operation temperature of hydrate neutralizing device 4 is 8-23 DEG C, operating pressure 0.1-2.1Mpa, separates and collects methane-rich gas, changes
The hydrate working solution of the removing gas solved is returned in hydrate working liquid tank 1 to be used for hydration reaction cycle.
In the present invention, the selection of hydrate working solution can be selected according to the height of methane concentration in mixed empty coal bed gas
Select, can be that the aqueous solution of tetrabutylammonium bromide or tetrabutyl ammonium fluoride or with the addition of can improve hydrate life
Into other chemical substances of speed, these materials add whether and concentration height do not influence the present invention technical side
Case.
Embodiment 1
Hydrate working solution is tetrabutylammonium bromide (english abbreviation：TBAB), its concentration is 10wt%；
The composition of mixed sky coal bed gas is as shown in table 1 below：
The composition of the mixed empty coal bed gas of table 1
| Composition | CH4 | Air (O2、N2) |
| Content, mol% | 37.52 | 62.48 |
Using the technological process of methane and the hydration reactor of Fig. 2 in the mixed empty coal bed gas of separation as shown in Figure 1, it is specific
Process refer to the explanation of above-mentioned separation method, and the technological parameter being related to is as follows：
1) pressure for mixing empty coal bed gas is 0.5MPa.
2) temperature when hydrate working solution enters hydration reactor is 8 DEG C, pressure 3.0MPa.
3) pressure of the hydrate working solution by the trunnion section of hydration reactor is 0.4MPa.
4) pressure of the hydrate working solution with mixing stable section of the fluid of the methanogenesis in empty coal bed gas in hydration reactor
Power is 2.5MPa.
5) operation temperature of hydrate separator is 9 DEG C, operating pressure 2.4MPa.
6) operation temperature of hydrate neutralizing device is 10 DEG C, operating pressure 0.2MPa.
The composition of the isolated methane lean gas of technological process through Fig. 1 and methane-rich gas, it is as shown in table 2 below：
The composition of 2 methane-rich gas of table and methane lean gas
| Composition | CH4 | Air (O2、N2) |
| The content of methane-rich gas, mol% | 63.782 | 36.281 |
| The content of methane lean gas, mol% | 13.751 | 86.249 |
As shown in Table 2, the mole fraction of methane is 63.782mol% in methane-rich gas, and the rate of recovery of methane reaches 83%,
Should the result shows that：Above-mentioned hydrate separation method effectively can be separated methane in mixed empty coal bed gas.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (5)
- A kind of 1. separation method of methane in mixed empty coal bed gas, it is characterised in that including making mixed empty coal bed gas that hydration reaction occur, And the process of methane-rich gas is collected, wherein,Realizing the hydration reactor of hydration reaction has with lower structure：Hydration reactor cavity is along hydrate working solution flow direction With entrance, trunnion section and stable section, and the circulation area of trunnion section is respectively less than the circulation area of entrance and stable section, should The side wall that hydration reactor cavity corresponds to trunnion section offers air inlet；The separation method includes：Hydrate working solution is sent into the hydration reactor from entrance, makes mixed empty coal bed gas Connected by air inlet with hydration reactor, the suction produced using the hydrate working solution for flowing through trunnion section is by mixed sky to be separated Coal bed gas sucks hydration reactor, and the two is mixed during stable section is flow to and hydration reaction is occurred, generation hydration Thing slurries and methane lean gas；The hydrate slurry and methane lean gas are sent into hydrate separator, make the methane lean gas from hydrate separator Top exit is discharged and is collected, and outlet at bottom of the hydrate slurry through hydrate separator is sent into hydrate neutralizing device Implement neutralizing, separate and collect methane-rich gas, the hydrate working solution for dissolving the removing gas is used for hydration reaction cycle；The internal diameter of the pipeline of the entrance of the hydration reactor is 15-50mm, internal diameter and the entrance of the trunnion section Internal diameter of the pipeline ratio is 0.05-0.5, and the diameter of the air inlet and the internal diameter ratio of the trunnion section are 0.2-0.5；The internal diameter of the pipeline ratio of the length of the entrance and the entrance is 1-3, the trunnion segment length and the trunnion The internal diameter ratio of section is 1-2.5, and the length of the stable section and the internal diameter of the pipeline ratio of the entrance are 3-5；The operation temperature of the hydrate separator is 4-15 DEG C, operating pressure 0.6-5.1Mpa.
- 2. separation method according to claim 1, it is characterised in that when the hydrate working solution is entered hydration reactor Temperature is 4-15 DEG C, pressure 0.6-5.1MPa.
- 3. separation method according to claim 1, it is characterised in that the operation temperature of the hydrate neutralizing device is 8-23 DEG C, operating pressure 0.1-2.1MPa.
- 4. separation method according to claim 2, it is characterised in that mixed empty coal bed gas to be separated is inhaled into hydration reactor Preceding pressure is less than 0.6MPa.
- 5. realize the system that claim 1-4 any one of them mixes the separation method of methane in empty coal bed gas, it is characterised in that The system comprises hydrate work liquid storage tank, hydration reactor, hydrate separator, hydrate neutralizing device, heater and/or Pressure reducing valve；Wherein, hydration reactor cavity has entrance, trunnion section and stable section, and trunnion along hydrate working solution flow direction The circulation area of section is respectively less than the circulation area of entrance and stable section, which corresponds to the side wall of trunnion section Air inlet is offered, mixed sky coal bed gas is connected by the air inlet with the hydration reactor；The hydrate work liquid storage tank is equipped with entrance and exit, and the outlet and the hydration of the hydrate work liquid storage tank are anti- The entrance of device is answered to connect；The hydration reactor stable section, which is equipped with, to be used to discharge the outlet of hydrate slurry and methane lean gas, itself and the hydrate The entrance connection of separator, the top of the hydrate separator are equipped with methane lean gas floss hole, and bottom is equipped with hydrate slurry Outlet；The hydrate slurry outlet of the hydrate separator is connected with the entrance of hydrate neutralizing device, and is provided with and is added between the two Hot device and/or pressure reducing valve, the hydrate working solution outlet of the removing gas of the hydrate neutralizing device work with the hydrate The entrance connection of liquid storage tank；The internal diameter of the pipeline of the entrance of the hydration reactor is 15-50mm, internal diameter and the entrance of the trunnion section Internal diameter of the pipeline ratio is 0.05-0.5, and the diameter of the air inlet and the internal diameter ratio of the trunnion section are 0.2-0.5；The internal diameter of the pipeline ratio of the length of the entrance and the entrance is 1-3, the trunnion segment length and the trunnion The internal diameter ratio of section is 1-2.5, and the length of the stable section and the internal diameter of the pipeline ratio of the entrance are 3-5；The operation temperature of the hydrate separator is 4-15 DEG C, operating pressure 0.6-5.1MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494203.0A CN105498485B (en) | 2014-09-24 | 2014-09-24 | The separation method and its system of methane in a kind of mixed empty coal bed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494203.0A CN105498485B (en) | 2014-09-24 | 2014-09-24 | The separation method and its system of methane in a kind of mixed empty coal bed gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105498485A CN105498485A (en) | 2016-04-20 |
| CN105498485B true CN105498485B (en) | 2018-04-20 |
Family
ID=55707018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410494203.0A Expired - Fee Related CN105498485B (en) | 2014-09-24 | 2014-09-24 | The separation method and its system of methane in a kind of mixed empty coal bed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498485B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349773B (en) * | 2017-08-10 | 2020-11-24 | 中国石油大学(北京) | Low temperature hydration separation method and system |
| CN109797018A (en) * | 2019-02-28 | 2019-05-24 | 河南理工大学 | A kind of improved method producing biomass synthetic natural gas |
| CN111974191A (en) * | 2019-05-22 | 2020-11-24 | 中国石油大学(北京) | Method and device for removing hydrogen sulfide in mixed gas through hydration |
| CN111974165B (en) * | 2019-05-22 | 2022-03-18 | 中国石油大学(北京) | Method and device for removing volatile organic compounds in mixed gas by hydration |
| CN114437842B (en) * | 2020-10-20 | 2023-01-10 | 中国石油化工股份有限公司 | Gas continuous separation system of hydrate method combined membrane method and disturbance device thereof |
| CN112316859B (en) * | 2020-10-28 | 2022-09-13 | 中国石油化工股份有限公司 | Device and method for enhancing generation of gas hydrate |
| CN112604420B (en) * | 2020-11-25 | 2023-08-11 | 湖南科技大学 | Hydrogen sulfide purifying device and method for high-sulfur coal seam gas extraction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530719A (en) * | 2008-03-13 | 2009-09-16 | 中国石油大学(北京) | Method and device for low-pressure processing of coal bed gas |
| CN202490711U (en) * | 2011-08-29 | 2012-10-17 | 太平洋水处理工程有限公司 | Cyclone-type Venturi jet aeration nozzle |
-
2014
- 2014-09-24 CN CN201410494203.0A patent/CN105498485B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530719A (en) * | 2008-03-13 | 2009-09-16 | 中国石油大学(北京) | Method and device for low-pressure processing of coal bed gas |
| CN202490711U (en) * | 2011-08-29 | 2012-10-17 | 太平洋水处理工程有限公司 | Cyclone-type Venturi jet aeration nozzle |
Non-Patent Citations (1)
| Title |
|---|
| 天然气水合反应器的研究进展;白净等;《石油化工》;20081231;第37卷(第10期);1083-1088 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105498485A (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105498485B (en) | The separation method and its system of methane in a kind of mixed empty coal bed gas | |
| CN102207243B (en) | Method and device for building underground storage by dissolving limestone with carbon dioxide | |
| CN103867169B (en) | Method for applying gas-soluble surfactant to fluidity control of carbon dioxide oil displacement | |
| CN108678724B (en) | Utilize the hollow well construction and method of underground heat exploiting ocean hydrate hiding | |
| CN105971581A (en) | Device and method for efficiently exploiting natural gas hydrate by adopting flue gas of power plant | |
| CN103982165B (en) | One utilizes CO2and H2the method of mixed gas exploitation of gas hydrate | |
| CN204746030U (en) | Carbon dioxide gas's device is absorbed to sled dress formula suitable for platform | |
| CN103233709A (en) | Super heavy oil deposit exploiting carbon capture, utilization and storage (CCUS) system and method based on CO2 assisted steam assisted gravity drainage (SAGD) | |
| CN110617039A (en) | Method for recycling carbon dioxide of associated gas of carbon dioxide flooding of low-yield oil field | |
| CN106761607A (en) | A kind of method and device of the auxiliary Hot swapping exploitation of gas hydrate of flue gas | |
| CN104018813A (en) | Coal bed gas exploitation method | |
| CN105435721B (en) | A kind of hydration reactor and the method using methane in the mixed empty coal bed gas of reactor separation | |
| CN105498648B (en) | A kind of hydration reactor and the method for mixing methane in empty coal bed gas using reactor separation | |
| CN205840859U (en) | The device of power-plant flue gas efficiently extracting natural gas hydrate | |
| CN103537168B (en) | A kind of technique of pressure in tower when reducing pressure-swing absorber desorb | |
| CN110130866A (en) | A kind of coal seam anti-reflection method that hydraulic slotted liner technique is mutually cooperateed with acidification demineralization | |
| CN206513358U (en) | Air foam flooding shaft bottom foamed system | |
| CN104556281A (en) | Method for removing carbon dioxide contained in water | |
| CN202467804U (en) | On-site water shearing and re-injecting device for producing well | |
| CN203764088U (en) | System for enriching coal bed gas | |
| CN103386286B (en) | Recyclable reaction vessel system | |
| CN105502289B (en) | The separation method and its system of hydrogen in a kind of catalytic cracked dry gas | |
| CN111849574A (en) | Device and method for storing and transporting natural gas based on hydrate method | |
| CN112901120B (en) | Coal bed gas U-shaped well gas injection circulation negative pressure extraction device and method | |
| CN206715381U (en) | A kind of oily formula vavuum pump Oil-gas Separation bucket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20210924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |