CN206535399U - Hydrogen sulfide tail gas processing unit - Google Patents
Hydrogen sulfide tail gas processing unit Download PDFInfo
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- CN206535399U CN206535399U CN201621473471.5U CN201621473471U CN206535399U CN 206535399 U CN206535399 U CN 206535399U CN 201621473471 U CN201621473471 U CN 201621473471U CN 206535399 U CN206535399 U CN 206535399U
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- Prior art keywords
- hydrogen sulfide
- tail gas
- surge tank
- pipe
- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model is related to a kind of hydrogen sulfide tail gas processing unit, at least include an ammonia tourie for being used to receive hydrogen sulfide tail gas, one hydrogen sulfide surge tank, one hydrogen sulfide absorption kettle and a gas buffer tank, the aqueous solution that deamination is carried out to hydrogen sulfide tail gas is contained in ammonia tourie, hydrogen sulfide tail gas after aqueous solution deamination in ammonia tourie, which enters in hydrogen sulfide surge tank, enters row buffering, the hydrogen sulfide tail gas discharged in the hydrogen sulfide surge tank enters in the hydrogen sulfide absorption kettle equipped with liquid caustic soda carries out absorbing reaction to hydrogen sulfide, the gas discharge end connection gas buffer tank of hydrogen sulfide absorption kettle, the exhaust end of gas buffer tank is communicated with many blast pipes.The utility model is by separating the moisture content in tail gas to hydrogen sulfide tail gas progress deamination processing and by the buffering of hydrogen sulfide surge tank, to reduce the ammonia-nitrogen content in NaHS, and reduce 32% risk that tail gas causes NaHS content to be less than with water.
Description
Technical field
The utility model is related to a kind of hydrogen sulfide tail gas processing handled the hydrogen sulfide tail gas that stabilizer top row goes out
Device.
Background technology
The hydrogen sulfide tail gas processing mode that current stabilizer top row goes out is：The hydrogen sulfide tail gas that stabilizer top row goes out enters
In sodium hydroxide absorption tower, absorbed by the packing section after pump circulation in tower top, the tail gas after absorption enters natural gas
Feeding direct burning furnace burning in pipeline.Such processing mode has the disadvantage that：
1st, deamination processing is not carried out to hydrogen sulfide tail gas, causes the ammonia-nitrogen content height in NaHS, product is unqualified,
Product does not have producer to subscribe.
2nd, absorption tower is to circulate in filler to be absorbed using circulating pump, but because hydrogen sulfide and sodium hydroxide are in reaction
During, vulcanized sodium is first generated, the easy Crystallization Plugging filler of vulcanized sodium influences constant absorption, influences efficiency, the effect absorbed,
The service life of equipment is also influenceed simultaneously.
3rd, absorb tail gas and directly import natural gas line, easily cause at natural gas adjusting valve and pipeline is blocked, influence is straight
Stove is burnt normally to run.
Utility model content
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of reasonable in design, can carry out deamination
Processing is not in the hydrogen sulfide tail gas processing unit of clogging.
Realize that the technical solution of the utility model is as follows：
Hydrogen sulfide tail gas processing unit, at least including an ammonia tourie for being used to receive hydrogen sulfide tail gas, a vulcanization
Hydrogen surge tank, a hydrogen sulfide absorption kettle and a gas buffer tank,
The aqueous solution that deamination is carried out to hydrogen sulfide tail gas is contained in the ammonia tourie, it is de- by the aqueous solution in ammonia tourie
Hydrogen sulfide tail gas after ammonia, which enters in hydrogen sulfide surge tank, enters the hydrogen sulfide tail gas discharged in row buffering, the hydrogen sulfide surge tank
Absorbing reaction, the gas discharge end of the hydrogen sulfide absorption kettle are carried out to hydrogen sulfide into the hydrogen sulfide absorption kettle equipped with liquid caustic soda
Gas buffer tank is connected, the exhaust end of gas buffer tank is communicated with many blast pipes.
Above-mentioned technical proposal is employed, and hydrogen sulfide tail gas enters in ammonia tourie, the ammonia in tail gas removed by the aqueous solution
Remove, remove the tail gas of ammonia, enter into hydrogen sulfide surge tank in row buffering, buffering course, the water carried in tail gas can be deposited
Separated in hydrogen sulfide buffering pot bottom with hydrogen sulfide flue gas, hydrogen sulfide flue gas is entered back into hydrogen sulfide absorption kettle, with vulcanization
Liquid caustic soda formation absorbing reaction in hydrogen absorption kettle simultaneously generates after NaHS and water, reaction tail gas and entered in gas buffer tank and enter row buffering
And as needed come select from corresponding blast pipe discharge.The utility model by hydrogen sulfide tail gas carry out deamination processing, with
And by the buffering of hydrogen sulfide surge tank so that the moisture content in tail gas to be separated, to reduce the ammonia-nitrogen content in NaHS, and drop
Low tail gas causes 32% risk that NaHS content is less than with water；In addition, into the tail gas in hydrogen sulfide absorption kettle with
Liquid caustic soda directly forms absorbing reaction, it is to avoid reaction mid-term causes the problem of pump and filler are damaged due to vulcanized sodium.
Preferably, hydrogen sulfide tail gas is discharged in an exhaust pipe, and exhaust pipe has been respectively communicated with the first pipeline, the second pipe
Road, first pipeline is connected with ammonia tourie formation, and second pipe is connected with the formation of hydrogen sulfide surge tank, in the first pipe
Control valve is respectively arranged with road, second pipe, when the control valve on the first pipeline is opened, at the control valve on second pipe
When control valve breakdown on off state, the first pipeline, the control valve on second pipe is in opening.
Preferably, after first pipeline is connected with ammonia tourie and extend to below the aqueous solution in ammonia tourie, the
After two pipelines are connected with hydrogen sulfide surge tank and extend to the bottom of hydrogen sulfide surge tank；It is provided with the top of hydrogen sulfide surge tank
Connect the 3rd pipeline of hydrogen sulfide surge tank and hydrogen sulfide absorption kettle.
Preferably, after the 3rd pipeline is connected with hydrogen sulfide absorption kettle and the liquid of liquid caustic soda in hydrogen sulfide absorption kettle is extended to
Below face.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1 is the first ammonia tourie, and 2 be the second ammonia tourie, and 3 be exhaust pipe, and 4 be the first pipeline, and 5 be second
Pipeline, 6 be connecting pipe, and 7 be Drainage pipe, and 8 be delivery pump, and 9 be circulating line, and 10 be hydrogen sulfide surge tank, and 11 be control
Valve, 12 be hydrogen sulfide absorption kettle, and 13 be the 3rd pipeline, and 14 be gas buffer tank, and 15 be blast pipe.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The accompanying drawing of type embodiment, the technical scheme to the utility model embodiment is clearly and completely described.Obviously, it is described
Embodiment is a part of embodiment of the present utility model, rather than whole embodiments.Based on described of the present utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of without creative work, all belongs to
The scope protected in the utility model.
As shown in figure 1, hydrogen sulfide tail gas processing unit, including for receive hydrogen sulfide tail gas the first ammonia tourie 1, with
The water that deamination is carried out to hydrogen sulfide tail gas is contained in second ammonia tourie 2 of the first ammonia tourie connection, two ammonia touries
Solution, hydrogen sulfide tail gas is discharged in an exhaust pipe 3, is used at the top of one end connection stabilizer of exhaust pipe in stabilizer
Hydrogen sulfide tail gas is guided；The other end of exhaust pipe has been respectively communicated with the first pipeline 4, second pipe 5, the first pipeline and
One ammonia tourie is connected and extended to below the aqueous solution in ammonia tourie, the gas discharge end and the second ammonia of the first ammonia tourie
The inlet end of tourie is connected by the formation of connecting pipe 6, and connecting pipe is stretched into below the aqueous solution in the second ammonia tourie, this
Sample preferably can carry out deamination to hydrogen sulfide tail gas；The bottom of two ammonia touries absorbs ammonia for connection Drainage pipe 7
The delivery pump 8 of active discharge opeing is equipped with liquid discharge in tank, Drainage pipe, the liquid of Drainage pipe discharge can be discharged into dirt
Centralized collection processing is carried out in water pot, in addition, having tail gas entrance during Drainage pipe, the tail gas being mingled with passes through circulating line
9 are again introduced into the second ammonia tourie.
Hydrogen sulfide tail gas in second ammonia tourie after deamination, which enters in hydrogen sulfide surge tank 10, enters row buffering, by tail gas
In moisture content separate and be deposited on the bottom of hydrogen sulfide buffering pipe.The formation of second pipe 5 and hydrogen sulfide surge tank 10 connect and
The bottom of hydrogen sulfide surge tank is extended to, to lift the efficiency and effect of moisture content separation, on the first pipeline, second pipe respectively
Control valve 11 is provided with, when the control valve on the first pipeline is opened, the control valve on second pipe is off state, first
During control valve breakdown on pipeline, the control valve on second pipe is in opening, so when need not be taken off to tail gas
During ammonia treatment, from the tail gas of stabilizer top discharge, directly it can be entered by second pipe in hydrogen sulfide surge tank, without
Will be by two ammonia touries, to meet different vent gas treatment operating modes.
Show that processing unit includes four hydrogen sulfide absorption kettles 12, four hydrogen sulfide absorption kettles in the drawing of the present embodiment
Form the hydrogen sulfide surge tank and hydrogen sulfide absorption kettle that connection head end is provided with the top of tandem connection, hydrogen sulfide surge tank
The 3rd pipeline 13, after the 3rd pipeline is connected with the hydrogen sulfide absorption kettle of head end and extend to the liquid of liquid caustic soda in hydrogen sulfide absorption kettle
Below face, the hydrogen sulfide tail gas discharged in hydrogen sulfide surge tank enters in the hydrogen sulfide absorption kettle equipped with liquid caustic soda to be carried out to hydrogen sulfide
Absorbing reaction, such tail gas can be inserted directly into below liquid level, be stirred by the way of bubbling, both reduced disappearing for electric energy
Consumption, turn avoid in the reaction the phase because vulcanized sodium causes pump and filler to damage；Connect the pipeline of adjacent hydrogen sulfide absorption kettle
The lower section of liquid caustic soda in correspondence absorption kettle is also extended into, is imitated by multistage absorbing reaction with the processing lifted to hydrogen sulfide tail gas
Really.
The processing unit includes the gas buffer tank 14 of two strings together, the gas discharged from the hydrogen sulfide absorption kettle of tail end
Body, which is sequentially entered, enters row buffering in gas buffer tank, and is discharged by three blast pipes 15.In specifically used, the gas one of discharge
Part is burnt by pipeline to the direct burning furnace of crude fuel oil, saves the energy, and a part passes through newly-increased exhaust pipe to benzene
Ethylene furnace is burnt, and part emptying is used to balance tail gas pressure to torch house steward.
It should be noted that ammonia tourie listed in the present embodiment, hydrogen sulfide surge tank, hydrogen sulfide absorption kettle, gas
The quantity of body surge tank, merely to better illustrating the operation principle of the application, and is not to limit quantitative.
Claims (4)
1. hydrogen sulfide tail gas processing unit, it is characterised in that the processing unit, which at least includes one, to be used to receive hydrogen sulfide tail gas
Ammonia tourie, a hydrogen sulfide surge tank, a hydrogen sulfide absorption kettle and a gas buffer tank,
The aqueous solution that deamination is carried out to hydrogen sulfide tail gas is contained in the ammonia tourie, after aqueous solution deamination in ammonia tourie
Hydrogen sulfide tail gas enter to enter the hydrogen sulfide tail gas discharged in row buffering, the hydrogen sulfide surge tank in hydrogen sulfide surge tank and enter
Absorbing reaction, the gas discharge end connection of the hydrogen sulfide absorption kettle are carried out in hydrogen sulfide absorption kettle equipped with liquid caustic soda to hydrogen sulfide
Gas buffer tank, the exhaust end of gas buffer tank is communicated with many blast pipes.
2. hydrogen sulfide tail gas processing unit according to claim 1, it is characterised in that hydrogen sulfide tail gas is by an exhaust pipe
Middle discharge, exhaust pipe has been respectively communicated with the first pipeline, second pipe, and first pipeline connects with ammonia tourie formation
Logical, second pipe is formed with hydrogen sulfide surge tank and connected, and control valve is respectively arranged with the first pipeline, second pipe, when the
When control valve on one pipeline is opened, the control valve on second pipe is off the control valve breakdown on state, the first pipeline
When, the control valve on second pipe is in opening.
3. hydrogen sulfide tail gas processing unit according to claim 2, it is characterised in that first pipeline and ammonia tourie
After connection and extend to below the aqueous solution in ammonia tourie, after second pipe is connected with hydrogen sulfide surge tank and extend to vulcanization
The bottom of hydrogen surge tank；The 3rd pipe of connection hydrogen sulfide surge tank and hydrogen sulfide absorption kettle is provided with the top of hydrogen sulfide surge tank
Road.
4. hydrogen sulfide tail gas processing unit according to claim 3, it is characterised in that the 3rd pipeline is inhaled with hydrogen sulfide
Receive after kettle connection and extend to below the liquid level of liquid caustic soda in hydrogen sulfide absorption kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621473471.5U CN206535399U (en) | 2016-12-30 | 2016-12-30 | Hydrogen sulfide tail gas processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621473471.5U CN206535399U (en) | 2016-12-30 | 2016-12-30 | Hydrogen sulfide tail gas processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206535399U true CN206535399U (en) | 2017-10-03 |
Family
ID=59938553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621473471.5U Active CN206535399U (en) | 2016-12-30 | 2016-12-30 | Hydrogen sulfide tail gas processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206535399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141948A (en) * | 2019-06-27 | 2019-08-20 | 山东清沂山石化科技有限公司 | A kind of amic H of sulfur-bearing2S tail gas three-level absorbs processing method |
| CN111036056A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Tail gas treatment device |
-
2016
- 2016-12-30 CN CN201621473471.5U patent/CN206535399U/en active Active
Cited By (3)
| 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 |
| CN110141948A (en) * | 2019-06-27 | 2019-08-20 | 山东清沂山石化科技有限公司 | A kind of amic H of sulfur-bearing2S tail gas three-level absorbs processing method |
| CN110141948B (en) * | 2019-06-27 | 2021-11-12 | 山东清沂山石化科技有限公司 | H containing sulfur amide2S tail gas three-stage absorption treatment method |
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