CN205627575U - A device that is arranged in low concentration hydrogen sulfide tail gas treatment process - Google Patents
A device that is arranged in low concentration hydrogen sulfide tail gas treatment process Download PDFInfo
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- CN205627575U CN205627575U CN201620454721.4U CN201620454721U CN205627575U CN 205627575 U CN205627575 U CN 205627575U CN 201620454721 U CN201620454721 U CN 201620454721U CN 205627575 U CN205627575 U CN 205627575U
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- storage tank
- tail gas
- gas treatment
- hydrogen sulfide
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Abstract
The utility model discloses a device that is arranged in low concentration hydrogen sulfide tail gas treatment process, including chemical reagent storage tank A and chemical reagent storage tank B, all set up the air inlet in two storage tank lower parts, the bottom all sets up the liquid outlet, all sets up online pH value monitor and the visual reagent window of getting at two storage tank lateral walls, all sets up the pivoting leaf at the bottom of two storage tanks, all set up atmospheric valve, tail gas treatment agent filling valve door and manometer at two storage tank tops, storage tank A's hydrogen sulfide gas body export is connected with storage tank B's air inlet. Compared with the prior art, the utility model has the advantages that: low concentration (<= 5%) hydrogen sulfide tail gas treatment during this device is fit for, the monitoring of naHCO3 and the mixed solution of triazine class hydrogen sulfide absorbent, naOH and the mixed solution strength of triazine class hydrogen sulfide absorbent in simply installing the tail gas treatment through visual sample window and verifying attachment, the mixed chemical reagent solution that keeps handling tail gas is in the active condition, has realized the discharge to reach standard of hydrogen sulfide tail gas, or even the zero release.
Description
Technical field
This utility model relates to hydrogen sulfide tail gas processing technology field, is specifically related to a kind of for middle low concentration sulfur
Change the device of hydrogen tail gas treatment process.
Background technology
In oil-gas field surface engineering recovery process, owing to the component of exploitation petroleum gas containing CO2、H2S、
The corrosive gas such as chloride ion, create heavy corrosion to the pipeline of gas field ground surface works, equipment etc., cause
The accident such as pipeline corrosive perforation, equipment failure, brings harm greatly to gas field safe operation, especially
The huge challenge of safety and environmental protection under the new situation.Therefore, during the ground engineering construction of gas field, must take into
During Gas field construction while special material, need CO2、H2The impurity such as S, gas water is carried out at separation
Reason, thus the techniques such as decarburization, desulfurization, dehydration must be designed in the ground surface works design process of gas field and carry out sky
So gas carries out separating treatment.
During natural gas separating treatment, for containing H after first separation2The gas water of S carries out flash distillation,
Traditional process technique has: (1) uses inorganic alkali liquor (such as sodium hydroxide) reactive absorption, but reaction generates
Sulphurizing salt (such as Na2S) it is dissolved in water and can not directly discharge, need to be further processed, add work
Skill complexity and processing cost；(2) use oxidant (such as hydrogen peroxide) that Oxidation of Hydrogen Sulfide is become sulphite
Discharge again, but oxidant storage, transport and operating process risk are the highest, and security incident easily occurs；(3)
Using metaphosphate reactive absorption, it is the most inefficient that metaphosphate is mainly used in mud, the most also
Equally there is the problem that product needs process further；(4) catalyst air blast catalysis oxidation, drum are used
Wind enters oxygen and H2S catalytic reaction generates sulfur, and this method is at H2When S concentration is relatively low, air intake is with anti-
Answering speed wayward, exhaust emissions situation up to standard is unstable；(5) amine liquid reactive absorption, as alcamines is molten
Liquid reactive absorption H2S, then by absorb saturated hydramine rich solution transport back natural gas processing plant follow ball removing H2S, this
The method of kind operation complexity, operating cost is higher.
Utility model content
This utility model overcomes shortcoming of the prior art, it is provided that a kind of for middle low concentration hydrogen sulphide tail
The device of gas disposal technique, inhales by being separately added into sodium bicarbonate and triazine hydrogen sulfide in two-stage tank arrangement
Receive agent mixed solution, sodium hydroxide and triazines H2S SCAVENGER mixed liquor, it is achieved the height of hydrogen sulfide tail gas
Effect Duplex treatment；In twin-stage storage tank, it is provided with on-line pH value monitoring, it is achieved tank arrangement inner exhaust gas simultaneously
Process the concentration monitor of solvent, final solution low concentration hydrogen sulphide vent gas treatment problem, reach safety and environmental protection mesh
, save investment simultaneously, reduced risk, improve cost performance.
The technical solution of the utility model is: a kind of dress for middle low concentration hydrogen sulphide tail gas treatment process
Put, including chemical reagent storage tank A and chemical reagent storage tank B, be respectively provided with air inlet, the end in two storage tank bottoms
Portion is respectively provided with liquid outlet, is respectively provided with on-line pH value monitor at two storage tank sidewalls and visually takes reagent window,
It is respectively provided with pivoting leaf at two bottom of storage tanks；It is respectively provided with atmospheric valve, vent gas treatment agent filling valve in two tank top
And Pressure gauge；The hydrogen sulfide gas outlet of storage tank A is connected with the air inlet of storage tank B.
Compared with prior art, the utility model has the advantages that: this device is suitable for middle low concentration (≤5%) sulfur
Change hydrogen vent gas treatment, by visual sampling window and verifying attachment to NaHCO in vent gas treatment easy device3With three
Piperazine class H2S SCAVENGER mixed solution, NaOH and the prison of triazines H2S SCAVENGER mixed solution concentration
Surveying, holding processes the mixed chemical reagent solution of tail gas and is in activated state, it is achieved that reaching of hydrogen sulfide tail gas
Mark discharge, even zero-emission.Concrete advantage performance is as follows:
1, NaHCO is used3With triazines H2S SCAVENGER mixed solution series connection NaOH and triazines hydrogen sulfide
Absorbent, the first order is mainly used in absorbing hydrogen sulfide, and the second level mainly absorbs CO2(cross reason CO2With NaOH
Ultimately generate NaHCO3) and residual hydrogen sulfide, thus improve the integrated treatment efficiency of tail gas.
2, use exhaust gas processing device, reduce the use of strong oxidizer reagent storage device special material,
Investment reduction cost about 30%～40%.
3, by Simple visual sampling window, it is possible to achieve the concentration visual monitoring of two kinds of mixed solvents in device,
Logical on-line pH value monitoring, the activity of regulation and control mixed solvent is effectively.
4, use low concentration hydrogen sulphide tail gas treatment process and device in one, process technique with conventional exhaust
Comparing, can effectively reduce one-time investment and the operating cost of device, develop skill competitiveness.
5, NaHCO is used3, NaOH respectively with triazine H2S SCAVENGER mix, overcome triazines hydrogen sulfide
The shortcoming that absorbent reaction is slow, decreases the use of the dangerous solvents such as strong oxidizer, reduces risk, carry
High safety.
Accompanying drawing explanation
This utility model will illustrate by example and with reference to the appended drawing, wherein:
Fig. 1 is structural representation of the present utility model, in figure:
1 Pressure gauge A；2 check-valves A；3,21,26 on-line pH value monitor；4 pivoting leafs
A；5 tapping valve A；6 valve A；7 visually take reagent window A；8 chemical reagent storage tank A；9
Valve B (is vented)；10 valve C；11 Pressure gauge B；12 Pressure gauge C；13 valve D；
14 check-valves B；15 pivoting leaf B；16 tapping valve B；17 valve E (emptying)；18 valves
Door F；19 Pressure gauge D；20 valve G；22 valve H；23 visually take reagent window B；
24 chemical reagent storage tank B；25 check-valves C；27 pivoting leaf B；28 tapping valve C；29—
Valve I；30 visually take reagent window C；31 middle stand-by storages；32 valve J (emptying)；33
Pressure gauge E；34 valve K；35 valve L.
Detailed description of the invention
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process, as it is shown in figure 1, include chemistry examination
Agent storage tank A, chemical reagent storage tank B and middle stand-by storage 31, wherein:
Check-valves 2 is set at chemical reagent storage tank A lower right-hand side, is sequentially arranged above online at check-valves 2
PH value monitor 3 and visually take reagent window 7, described visually take reagent window 7 by valve 6 with change
Learn reagent reservoirs A connection；Liquid outlet is set in storage tank left bottom, tapping valve 5 is set at liquid outlet；?
Pivoting leaf 4 is set in tank bottom；At tank top installation of relief valve 9, valve 10 (for vent gas treatment
Agent fill), Pressure gauge 11, valve 13；
Check-valves 14 is set at chemical reagent storage tank B lower right-hand side, on-line pH value monitoring is set in left side
Instrument 21 and visually take reagent window 23, the described reagent window 23 that visually takes is by valve 22 and chemical reagent
Storage tank B connects；Liquid outlet is set in storage tank left bottom, tapping valve 16 is set at liquid outlet；At storage tank
Pivoting leaf 15 is set in Di Bu；At tank top installation of relief valve 17, valve 18 (for vent gas treatment agent
Filling), Pressure gauge 19 and gas outlet, valve 20 is set in gas outlet；
Check-valves 25 is set at middle stand-by storage 31 lower right-hand side, is sequentially arranged above at check-valves 25
On-line pH value monitor 26 and visually take reagent window 30, the described reagent window 30 that visually takes passes through valve
Door 29 connects with middle stand-by storage 31；Liquid outlet is set in storage tank left bottom, row is set at liquid outlet
Liquid valve 28；Pivoting leaf 27 is set in tank bottom；At tank top installation of relief valve 32, valve 35
(filling for vent gas treatment agent), Pressure gauge 33 and gas outlet, arrange valve 34 in gas outlet；
The valve 13 of chemical reagent storage tank A is connected with the check-valves 14 of chemical reagent storage tank B by pipeline,
The pipeline going out valve 13 arranges Pressure gauge 12；
The valve 9 of chemical reagent storage tank A and the valve 17 of chemical reagent storage tank B are all by pipeline and centre
The check-valves 25 of stand-by storage 31 connects.
Operation principle of the present utility model is:
The flashed vapour that gas water after initial gas-liquid separates produces enters from the easy device lower right corner, by pressing
The pressure of entrance monitored by power table 1, enters chemical reagent storage tank A through check-valves 2, and hydrogen sulfide tail gas is in storage
Through NaHCO in tank A3With the hydrogen sulfide gas of triazines H2S SCAVENGER mixed solution reactive absorption,
Again through valve 13 and check-valves 14, entering chemical reagent storage tank B, hydrogen sulfide gas is warp in storage tank B
NaOH and triazines H2S SCAVENGER mixed solution reactive absorption, the gas of generation is by outside valve 20
Arrange or connect with next process.
Pivoting leaf 4 and the function of pivoting leaf 15 in chemical reagent storage tank A and chemical reagent storage tank B are real
In existing storage tank, blended absorbent solution fully reacts with tail gas, and processes the equal of solvent strength within keeping storage tank
Even, make the pH in on-line pH value monitor 3 and 21 energy monitor storage tank A and storage tank B simultaneously
Value.
In chemical reagent storage tank A, when opening valve 6, solution enters and visually takes reagent window 7, passes through
Visual windows can realize the physicochemical property of the solution of sampling detection, can realize the liquid level in storage tank A simultaneously
Observation.In like manner, in chemical reagent storage tank B, when opening valve 22, solution enters and visually takes liquid window
23 are sampled, and can detect the physicochemical property of mixed solution in storage tank B, to control the anti-of tail gas absorption
Answer efficiency, the liquid level in storage tank B can also be monitored simultaneously.
Storage tank A, storage tank B and middle stand-by storage 31 are respectively provided with valve 9,17 and 32, when
When Pressure gauge 11 and 19 in chemical reagent storage tank A and storage tank B exceedes certain numerical value, can be by opening
Valve 9 and 17 pairs of pressure of storage tank carry out pressure regulation, and the tail gas of release enters centre by check-valves 25
Equipment storage tank 31, is further processed untreated tail gas, thus reduces risk.And when centre sets
When Pressure gauge 33 on standby storage tank 31 exceedes certain numerical value, open valve 32 and be adjusted, and external face
Time vent gas treatment agent three carry out vent gas treatment.
When chemical reagent storage tank A, chemical reagent storage tank B and middle 31 3 storage tanks of stand-by storage pass through
The concentration of three storage tanks is detected by line pH value monitor 3,21 and 26 respectively, when storage tank A and storage
When tank B concentration is relatively low, the solution in storage tank can be given off by valve 5,16 and 28 respectively, discharge
After respectively vent gas treatment agent filler at valve 10,18 and 35 be injected separately at two kinds of tail gas
Reason mixed solution.Simultaneously when the treatment fluid discharged in storage tank, close valve 13 and 20, open valve 9
With 17, tail gas enters intermediate equipment storage tank 31 through check-valves 25 and processes, to keep oil gas field existing
The seriality that field is run.
Claims (7)
1. the device for middle low concentration hydrogen sulphide tail gas treatment process, it is characterised in that: including
Learning reagent reservoirs A and chemical reagent storage tank B, be respectively provided with air inlet in two storage tank bottoms, bottom is respectively provided with out
Liquid mouth, is respectively provided with on-line pH value monitor at two storage tank sidewalls and visually takes reagent window, at two bottom of storage tanks
It is respectively provided with pivoting leaf；It is respectively provided with atmospheric valve, vent gas treatment agent filling valve and Pressure gauge in two tank top；
The hydrogen sulfide gas outlet of storage tank A is connected with the air inlet of storage tank B.
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process the most according to claim 1,
It is characterized in that: the atmospheric valve of two storage tanks is all connected by the air inlet of pipeline with middle stand-by storage.
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process the most according to claim 2,
It is characterized in that: on-line pH value monitor is set at described middle stand-by storage sidewall and visually takes reagent window
Mouthful, liquid outlet is set in tank bottom, tapping valve is set at liquid outlet；At bottom of storage tank, pivoting leaf is set；?
Tank top installation of relief valve, vent gas treatment agent filling valve and Pressure gauge.
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process the most according to claim 3,
It is characterized in that: be respectively provided with valve in the gas outlet of three storage tanks.
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process the most according to claim 3,
It is characterized in that: the air inlet at three storage tanks is respectively provided with check-valves.
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process the most according to claim 1,
It is characterized in that: the hydrogen sulfide gas at chemical reagent storage tank A exports and arranges Pressure gauge.
A kind of device for middle low concentration hydrogen sulphide tail gas treatment process the most according to claim 1,
It is characterized in that: the air inlet at chemical reagent storage tank A arranges Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620454721.4U CN205627575U (en) | 2016-05-18 | 2016-05-18 | A device that is arranged in low concentration hydrogen sulfide tail gas treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620454721.4U CN205627575U (en) | 2016-05-18 | 2016-05-18 | A device that is arranged in low concentration hydrogen sulfide tail gas treatment process |
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| CN205627575U true CN205627575U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620454721.4U Active CN205627575U (en) | 2016-05-18 | 2016-05-18 | A device that is arranged in low concentration hydrogen sulfide tail gas treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036056A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Tail gas treatment device |
| CN111946322A (en) * | 2019-05-15 | 2020-11-17 | 中国石油天然气股份有限公司 | Device and method for absorbing wellhead hydrogen sulfide gas |
-
2016
- 2016-05-18 CN CN201620454721.4U patent/CN205627575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036056A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Tail gas treatment device |
| CN111946322A (en) * | 2019-05-15 | 2020-11-17 | 中国石油天然气股份有限公司 | Device and method for absorbing wellhead hydrogen sulfide gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180118 Address after: 610041 Chengdu high tech Zone, Sichuan province sublimation Road No. 6 Patentee after: China Petroleum Engineering Construction Co Ltd Address before: 610041 Chengdu high tech Zone, Sichuan province sublimation Road No. 6 Patentee before: Engineering Design Co., Ltd., China Petroleum Group |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210220 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Address before: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. |
|
| TR01 | Transfer of patent right |