CN207641232U - Gas recovery system for oil based on adsorbent bed - Google Patents
Gas recovery system for oil based on adsorbent bed Download PDFInfo
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- CN207641232U CN207641232U CN201721656972.1U CN201721656972U CN207641232U CN 207641232 U CN207641232 U CN 207641232U CN 201721656972 U CN201721656972 U CN 201721656972U CN 207641232 U CN207641232 U CN 207641232U
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Abstract
The utility model discloses the adsorbent bed group of a kind of gas recovery system for oil based on adsorbent bed, including the first and second adsorbent beds, the input end of the second adsorbent bed is connected to the outlet end of the first adsorbent bed；Oil gas adsorption desorption material is built-in in first and second adsorbent beds；Access is adsorbed including the oil gas of air inlet pipe and exhaust emission tube, air inlet pipe is connected to the input end of the first adsorbent bed, and exhaust emission tube is connected to the outlet end of the second adsorbent bed；Access is desorbed including oil gas delivery line and the oil gas of gas collection pipe, two input ends of oil gas delivery line are connected to the input end of the input end and the second adsorbent bed of the first adsorbent bed, and the outlet end of oil gas delivery line is connected to the input end of gas collection pipe；Oil gas absorbing tank is connected to the outlet end of gas collection pipe；Vacuum pump is set to oil gas absorbing tank input end, and is connected to gas collection pipe.It uses two adsorbent beds to carry out adsorption desorption to oil gas, and apparatus and process is simple, and adsorption desorption organic efficiency is high, and the index of discharge gas meets atmospheric emission standard.
Description
Technical field
The utility model is related to Investigation of Petroleum Vapor Recovery Technology field, more particularly to a kind of gas recovery system for oil based on adsorbent bed.
Background technology
With the development of society, energy consumption is increasing, demand of the society to the energy be already increased to one it is important
Strategic height.So the height of recycling has been risen to from simple use for the utilization of the energy.Oil gas is
One of very valuable energy, it is so abundant that utilize petroleum resources in order to reduce the waste of oil gas, it is typically necessary and carries out oil gas
It recycles.Such as petrochemical plant needs the oil gas for being discharged into flare system to be recycled；It is hydrocracked and diesel oil hydrogenation
Etc. techniques be also required to be recycled the tail gas of discharge in process of production.
Current existing Investigation of Petroleum Vapor Recovery Technology is roughly divided into following five kinds：
1, solvent absorption formula gas recovery system for oil：The disadvantage is that needing dedicated solvent, solvent needs special equipment to be restored,
Equipment volume is huge, and field of employment is limited, and absorption efficiency is low, and most multipotency reaches 90% absorption efficiency, far can not meet
Present air emission request.
2, activated carbon adsorption formula gas recovery system for oil：Adsorption efficiency is low, cannot meet air emission request at this stage, and living
Property charcoal absorption oil product in fractions cannot be desorbed, absorption property with usage time lengthen and decline need periodically more
It changes, and the activated carbon after replacement belongs to dangerous waste, there is secondary pollution, needs the danger expense processing company processing of profession.
3, condensate recycling device：Energy consumption is big, and discharge cannot meet existing air emission request.
4, condensation+film+activated carbon adsorption group technology：Although emission request can be met in the short time, complex process, if
Standby of high cost, operation energy consumption is high, and service life is short, needs to regularly replace filtering film component and activated carbon, generates secondary pollution.
5, absorption+active carbon absorption technology：Although equipment can reach higher efficiency, bulky, operation dimension
Shield trouble is limited by use condition and using area limits, is only capable of meeting explosion-proof emission request, cannot meet at this stage
New air emission request.
Utility model content
One purpose of the utility model is to solve at least the above, and provide the advantages of at least will be described later.
The utility model is to provide a kind of gas recovery system for oil based on adsorbent bed there are one purpose, is adsorbed using two
Bed carries out adsorption desorption to oil gas, and apparatus and process is simple, and adsorption desorption organic efficiency is high, and the index of discharge gas meets air row
Put standard.
In order to realize these purposes and other advantages according to the present utility model, a kind of oil gas based on adsorbent bed is provided
Recovery system, including：
Adsorbent bed group comprising the input end of the first adsorbent bed and the second adsorbent bed, second adsorbent bed passes through oil gas
Piping connection is in the outlet end of first adsorbent bed；It is built-in with respectively to oil gas in first adsorbent bed and the second adsorbent bed
The material inhaled, being desorbed；
Oil gas adsorbs access comprising air inlet pipe and exhaust emission tube, the air inlet pipe are connected to first adsorbent bed
Input end, the exhaust emission tube is connected to the outlet end of second adsorbent bed；
Access is desorbed in oil gas comprising oil gas delivery line and gas collection pipe；There are two imports for the oil gas delivery line tool
End and 1 outlet end, the input ends of two oil gas delivery lines are connected to the input end and the of first adsorbent bed
The outlet end of the input end of two adsorbent beds, the oil gas delivery line is connected to the input end of the gas collection pipe；
Oil gas absorbing tank is connected to the outlet end of the gas collection pipe；
Vacuum pump, is set to the input end of the oil gas absorbing tank, and the vacuum pump is connected to the gas collection pipe.
Preferably, in the gas recovery system for oil based on adsorbent bed, further include：
Sunken tankers are connected to the oil gas absorbing tank.
Preferably, in the gas recovery system for oil based on adsorbent bed, the volume of first adsorbent bed is more than institute
State the volume of the second adsorbent bed.
Preferably, in the gas recovery system for oil based on adsorbent bed, first adsorbent bed and exhaust emission tube
Connecting pin be provided with third valve, the connecting pin of second adsorbent bed and discarded discharge pipe is provided with the 4th valve；
First adsorbent bed and the second adsorbent bed carry out oil gas absorption in the following way：
First adsorbent bed in not up to maximal absorptive capacity, open by the third valve, and the 4th valve is closed, described
First adsorbent bed individually adsorbs oil gas；When first adsorbent beds are to maximal absorptive capacity, the third valve is closed,
4th valve is opened, and first adsorbent bed and the second adsorbent bed simultaneously adsorb oil gas.
Preferably, in the gas recovery system for oil based on adsorbent bed, further include：First valve, the second valve and
5th valve；
First valve is set to the connecting pin of first adsorbent bed and air inlet pipe；Second valve is set to institute
State the junction of the input end of the second adsorbent bed and the input end of oil gas delivery line；5th valve is set to the third valve
On the exhaust emission tube of the rear end of door and the 4th valve.
Preferably, in the gas recovery system for oil based on adsorbent bed, further include：
Controller is separately connected with first valve, the second valve, third valve, the 4th valve and the 5th valve,
To control the opening and closing of first valve, the second valve, third valve, the 4th valve and the 5th valve；
Gas concentration of emission monitoring module, is set on the exhaust emission tube, and after the 5th valve
Side；The gas concentration of emission monitoring module is connected to the controller.
Preferably, in the gas recovery system for oil based on adsorbent bed, the adsorbent bed group is set as no less than two
Group is both provided with the 6th valve, so that the adsorbent bed between the gas collection pipe and oil gas absorbing tank of adsorbent bed group described in each group
Group is to oil gas alternately adsorption desorption.
Preferably, in the gas recovery system for oil based on adsorbent bed, the input end of the oil gas absorbing tank is also set
It is equipped with vacuum pump, the vacuum pump is connected to the gas collection pipe.
The utility model includes at least following advantageous effect：
The utility model in adsorbent bed group by being arranged the first adsorbent bed and the second adsorbent bed so that the suction for oil gas
The attached absorption by two-stage adsorbent bed, ensure that the efficiency of oil gas absorption, and improve oil gas adsorption rate and desorption rate so that row
The gas put is due to discharging standards, to protecting environment.
By the setting of system extraneous air will not be entered inside oil tank, reduces the oxygen content in oil tank, significantly
Risk of explosion is reduced, ensure that the safe to use of system.And belong to one to oil gas absorbing in the absorption exhaust process of system
The process of tank decompression, and extraneous gas does not enter oil gas absorbing tank, and oil gas absorbing pressure tank will not be allowed to increase in desorption process,
The system of reducing is depressurized to run time when specified pressure, improves the working efficiency of system.
Include oil gas delivery line and gas collection pipe by oil gas being arranged access is desorbed, and make two of oil gas delivery line into
Mouth is separately connected the input end of the first adsorbent bed and the second adsorbent bed so that for the oil gas of the first adsorbent bed and the second adsorbent bed
Desorption can carry out respectively, and then ensure that the desorption of each adsorbent bed is more thorough, and be reduced without condensation after oil gas desorption
The power consumption of the gas recovery system for oil, to realizing the oil gas that can reach discharging standards with extremely low operating cost
Processing and recycling.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the structure chart of the gas recovery system for oil described in the utility model based on adsorbent bed.
Specific implementation mode
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other elements or combinations thereof.
As shown in Figure 1, the utility model provides a kind of gas recovery system for oil based on adsorbent bed, including：Adsorbent bed group,
Including the first adsorbent bed 1 and the second adsorbent bed 2, the input end of second adsorbent bed 2 is connected to described by oil gas pipeline 3
The outlet end of one adsorbent bed 1；It is built-in with respectively in first adsorbent bed, 1 and second adsorbent bed 2 and adsorption desorption is carried out to oil gas
Material；Oil gas adsorbs access comprising air inlet pipe 4 and exhaust emission tube 5, the air inlet pipe 4 are connected to first adsorbent bed 1
Input end, the exhaust emission tube 5 is connected to the outlet end of second adsorbent bed 2；Access is desorbed in oil gas comprising oil gas
Delivery line 6 and gas collection pipe 7；The tool of oil gas delivery line 7 there are two input end and 1 outlet end, lead by two oil gas
The input end of outlet pipe is connected to the input end of the input end and the second adsorbent bed 2 of first adsorbent bed 1, and the oil gas is led
The outlet end of outlet pipe is connected to the input end of the gas collection pipe 7；Oil gas absorbing tank 8 is connected to the gas collection pipe 7
Outlet end；Vacuum pump 17, is set to the input end of the oil gas absorbing tank 8, and the vacuum pump is connected to the oil gas and returns
Closed tube.
In the above scheme, by the way that the first adsorbent bed and the second adsorbent bed are arranged in adsorbent bed group so that for oil gas
Absorption by the absorption of two-stage adsorbent bed, ensure that the efficiency of oil gas absorption, and improve oil gas adsorption rate and desorption rate, make
The gas that must be discharged is due to discharging standards, to protecting environment.
By the setting of system extraneous air will not be entered inside oil tank, reduces the oxygen content in oil tank, significantly
Risk of explosion is reduced, ensure that the safe to use of system.And belong to one to oil gas absorbing in the absorption exhaust process of system
The process of tank decompression, and extraneous gas does not enter oil gas absorbing tank, and oil gas absorbing pressure tank will not be allowed to increase in desorption process,
The system of reducing is depressurized to run time when specified pressure, improves the working efficiency of system.
Include oil gas delivery line and gas collection pipe by oil gas being arranged access is desorbed, and make two of oil gas delivery line into
Mouth is separately connected the input end of the first adsorbent bed and the second adsorbent bed so that for the oil gas of the first adsorbent bed and the second adsorbent bed
Desorption can carry out respectively, and then ensure that the desorption of each adsorbent bed is more thorough, and be reduced without condensation after oil gas desorption
The power consumption of the gas recovery system for oil, to realizing the oil gas that can reach discharging standards with extremely low operating cost
Processing and recycling.Wherein, the material in the adsorbent bed is preferably nano material so that the desorption of oil gas is efficient, makes for a long time
With will not reduce adsorption efficiency, and replaced sorbing material can recycle, and not be dangerous waste, will not cause two to environment
Secondary pollution.Certainly the adsorption/desorptions material such as activated carbon can also be used.
It, can be when oil gas be desorbed by the setting of vacuum pump so that petroleum vapor recovery pipeline forms negative pressure, passes through vacuum pump
With oil-poor cooperation so that it is more thorough for the desorption of adsorbent bed, it ensure that the yield of oil gas.And in the technology of the present invention side
Vacuum pump is limited in case to the pressurization value of oil gas absorbing tank in 60-80kpa, increases the saturated vapour pressure of rich oil oil gas so that
Part rich oil oil gas can be reduced to oil product at normal temperatures, increase the absorptivity of rich oil oil gas, that is, avoid condensing plant
It uses, significantly reduces power consumption, and simplify technique.
In one preferred embodiment, further include：Sunken tankers 9 are connected to the oil gas absorbing tank 8.
In the above scheme, by be arranged sunken tankers be attached with oil gas absorbing tank, can by the oil gas of desorption into
Row is collected.
In one preferred embodiment, the volume of first adsorbent bed 1 is more than the volume of second adsorbent bed 2.
In the above scheme, the volume of the second adsorbent bed, i.e., the first absorption are more than by the way that the volume of the first adsorbent bed is arranged
Bed is more than the second adsorbent bed to the adsorption capacity of oil gas, i.e., pre-large post-small adsorbent bed, two-stage is used to adsorb work in the system
Skill improves the utilization rate of adsorbent bed.When the absorption of big height of bed concentration gases reaches maximal absorptive capacity, the light concentration gas of breakthrough
Closely enter lectulum absorption, reduce the adsorptive pressure of lectulum while taking full advantage of the remaining adsorption capacity of big adsorbent bed again, protects
Longer absorption break through can be reached by having demonstrate,proved lectulum also, reduced the usage amount of adsorbent bed, i.e., played material to the greatest extent
Expect performance, and reduces the cost of manufacture of equipment.
In one preferred embodiment, first adsorbent bed 1 and the connecting pin of exhaust emission tube 5 are provided with third valve 13,
Second adsorbent bed 2 and the connecting pin of discarded discharge pipe 5 are provided with the 4th valve 14；First adsorbent bed 1 and second is inhaled
Attached bed 2 carries out oil gas absorption in the following way：
First adsorbent bed 1 in not up to maximal absorptive capacity, open by the third valve 13, and the 4th valve 14 closes
It closes, first adsorbent bed 1 individually adsorbs oil gas；When first adsorbent bed 1 reaches maximal absorptive capacity, the third
Valve 13 is closed, and the 4th valve 14 is opened, and first adsorbent bed, 1 and second adsorbent bed 2 simultaneously adsorbs oil gas.
In the above scheme, by the way that third valve is arranged in the connecting pin of the first adsorbent bed and exhaust emission tube, second
The 4th valve is arranged in the connecting pin of adsorbent bed and exhaust emission tube, passes through the control to third valve and the 4th valve, Neng Goushi
The classification superposing type of existing first adsorbent bed and the second adsorbent bed absorbs, i.e., so that the second adsorbent bed is in the first adsorbent beds to maximum
When adsorbance just start adsorb oil gas, the first adsorbent bed high concentrations of gas absorption reach maximal absorptive capacity when, breakthrough it is low dense
It spends gas and just enters the absorption of the second adsorbent bed, while taking full advantage of the remaining adsorption capacity of the first adsorbent bed, reduce the
The adsorptive pressure of two adsorbent beds, ensure that the second adsorbent bed also can reach longer absorption break through, reduce the second absorption
The usage amount of bed, has played material property, has improved the utilization rate of adsorbent bed, wherein in above-mentioned technical proposal to the greatest extent
In, the maximal absorptive capacity is depending on the maximum emission concentration value for the gas that the adsorbent bed discharges, maximum emission concentration value
It is set as 100-120ppm.
In one preferred embodiment, further include：First valve 11, the second valve 12, the 5th valve 15；First valve 11
It is set to the connecting pin of first adsorbent bed 1 and air inlet pipe 4；Second valve 12 is set to second adsorbent bed 2
The junction of input end and the input end of oil gas delivery line 6；5th valve 15 is set to the third valve 13 and the 4th
On the exhaust emission tube 5 of the rear end of valve 14.
In the above scheme, it by the way that valve is arranged between adsorbent bed and various pipelines, realizes in an adsorbent bed group
The classification desorption of two adsorbent beds so that adsorbent bed is more thorough to the desorption of oil gas, is conducive to the recycling of adsorbent bed, ensures
Efficiency of oil ＆ gas processing realizes the reasonable operation and work of whole system so that more efficient, the system operation of petroleum vapor recovery
It is more smooth.Wherein, state of the valve in system operation is respectively：When adsorbent bed group adsorbs oil gas,
When first adsorbent bed is not up to maximal absorptive capacity, first adsorbent bed individually carries out oil gas absorption, at this point, first valve
Door, third valve and the 5th valve opening, second valve and the 4th valve are closed；In the first adsorbent beds to maximum adsorption
When amount, second adsorbent bed proceeds by oil gas absorption, and the first valve, the 4th valve and the 5th valve opening, described at this time
Second valve and third valve are closed.
In one preferred embodiment, further include：Controller, with first valve 11, the second valve 12, third valve
13, the 4th valve 14 and the 5th valve 15 are separately connected, with control first valve 11, the second valve 12, third valve 13,
The opening and closing of 4th valve 14 and the 5th valve 15.
Gas concentration of emission monitoring module 10, is set on the exhaust emission tube 5, and is located at the 5th valve 15
Rear；The gas concentration of emission monitoring module 10 is connected to the controller.
In the above scheme, each valve is controlled by controller, and controls and monitors mould with gas concentration of emission
Block is connected, and can realize the real time monitoring to gas concentration of emission in exhaust emission tube, and then reach maximum threshold in throughput
When value, signal is sent to controller, and if the second adsorbent bed is not used at this time, controller controls the 4th valve and opens, and the
Three valves are closed, so that the second adsorbent bed is started to work, and then ensures the adsorbance and adsorption efficiency of oil gas, and second
When adsorbent bed has turned on absorption, if the throughput at the 5th valve still exceeds max-thresholds, the 5th valve and the first valve are controlled
Door is closed, so that the first adsorbent bed and the second adsorbent bed avoid working overloadingly, is protected, and ensure that oil gas is inhaled
Attached effect.
In one preferred embodiment, the adsorbent bed group is set as no less than two groups, and the oil gas of adsorbent bed group described in each group returns
The 6th valve 16 is both provided between closed tube 7 and oil gas absorbing tank 8, so that the adsorbent bed group is to oil gas alternately adsorption desorption.
In the above scheme, by setting adsorbent bed group to no less than two groups, and the petroleum vapor recovery of every group of adsorbent bed group
It is respectively provided with the 6th valve between pipe and oil gas absorbing tank, can be realized by the opening and closing of the 6th valve of control each group adsorbent bed group
The absorption of oil gas or desorption can be carried out respectively between each group, so that the working efficiency higher of system.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (7)
1. a kind of gas recovery system for oil based on adsorbent bed, which is characterized in that including：
Adsorbent bed group comprising the input end of the first adsorbent bed and the second adsorbent bed, second adsorbent bed passes through oil gas pipeline
It is connected to the outlet end of first adsorbent bed；It is built-in with respectively in first adsorbent bed and the second adsorbent bed and oil gas is carried out
It inhales, the material of desorption；
Oil gas adsorb access comprising air inlet pipe and exhaust emission tube, the air inlet pipe be connected to first adsorbent bed into
Mouth end, the exhaust emission tube are connected to the outlet end of second adsorbent bed；
Access is desorbed in oil gas comprising oil gas delivery line and gas collection pipe；There are two input end and 1 for the oil gas delivery line tool
The input end of a outlet end, two oil gas delivery lines is connected to input end and the second absorption of first adsorbent bed
The input end of bed, the outlet end of the oil gas delivery line is connected to the input end of the gas collection pipe；
Oil gas absorbing tank is connected to the outlet end of the gas collection pipe；
Vacuum pump, is set to the input end of the oil gas absorbing tank, and the vacuum pump is connected to the gas collection pipe.
2. the gas recovery system for oil based on adsorbent bed as described in claim 1, which is characterized in that further include：
Sunken tankers are connected to the oil gas absorbing tank.
3. the gas recovery system for oil based on adsorbent bed as described in claim 1, which is characterized in that the body of first adsorbent bed
Volume of the product more than second adsorbent bed.
4. the gas recovery system for oil based on adsorbent bed as claimed in claim 3, which is characterized in that first adsorbent bed with it is useless
The connecting pin of gas discharge pipe is provided with third valve, and the connecting pin of second adsorbent bed and discarded discharge pipe is provided with the 4th valve
Door；
First adsorbent bed and the second adsorbent bed carry out oil gas absorption in the following way：
First adsorbent bed in not up to maximal absorptive capacity, open by the third valve, and the 4th valve is closed, and described first
Adsorbent bed individually adsorbs oil gas；When first adsorbent beds are to maximal absorptive capacity, the third valve is closed, and the 4th
Valve is opened, and first adsorbent bed and the second adsorbent bed simultaneously adsorb oil gas.
5. the gas recovery system for oil based on adsorbent bed as claimed in claim 4, which is characterized in that further include：First valve,
Two valves and the 5th valve；
First valve is set to the connecting pin of first adsorbent bed and air inlet pipe；Second valve is set to described
The junction of the input end of two adsorbent beds and the input end of oil gas delivery line；5th valve be set to the third valve and
On the exhaust emission tube of the rear end of 4th valve.
6. the gas recovery system for oil based on adsorbent bed as claimed in claim 5, which is characterized in that further include：
Controller is separately connected with first valve, the second valve, third valve, the 4th valve and the 5th valve, with control
Make the opening and closing of first valve, the second valve, third valve, the 4th valve and the 5th valve；
Gas concentration of emission monitoring module, is set on the exhaust emission tube, and positioned at the rear of the 5th valve；Institute
It states gas concentration of emission monitoring module and is connected to the controller.
7. the gas recovery system for oil based on adsorbent bed as described in claim 1, which is characterized in that the adsorbent bed group is set as
No less than two groups, the 6th valve is both provided between the gas collection pipe of adsorbent bed group and oil gas absorbing tank described in each group, so that institute
Adsorbent bed group is stated to oil gas alternately adsorption desorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721656972.1U CN207641232U (en) | 2017-12-01 | 2017-12-01 | Gas recovery system for oil based on adsorbent bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721656972.1U CN207641232U (en) | 2017-12-01 | 2017-12-01 | Gas recovery system for oil based on adsorbent bed |
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| Publication Number | Publication Date |
|---|---|
| CN207641232U true CN207641232U (en) | 2018-07-24 |
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ID=62882293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721656972.1U Active CN207641232U (en) | 2017-12-01 | 2017-12-01 | Gas recovery system for oil based on adsorbent bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207641232U (en) |
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2017
- 2017-12-01 CN CN201721656972.1U patent/CN207641232U/en active Active
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Address after: 052360 188 meters south of the intersection of Xingye Street and Shengxing Road, Xinji City, Shijiazhuang, Hebei Province Patentee after: HEBEI DONGHOU ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 071000 shop in xilugang village, Hancun Township, Jingxiu District, Baoding City, Hebei Province Patentee before: HEBEI DONGHOU ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |