CN209464823U - The dehydrogenation hydrogen supply circulatory system for n-hexane production - Google Patents
The dehydrogenation hydrogen supply circulatory system for n-hexane production Download PDFInfo
- Publication number
- CN209464823U CN209464823U CN201822198839.7U CN201822198839U CN209464823U CN 209464823 U CN209464823 U CN 209464823U CN 201822198839 U CN201822198839 U CN 201822198839U CN 209464823 U CN209464823 U CN 209464823U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- pipeline
- heat exchanger
- cooling heat
- water cooling
- 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.)
- Active
Links
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to a kind of dehydrogenation hydrogen supply circulatory systems for n-hexane production, including knockout drum, be characterized in that: knockout drum feeding line is equipped with air cooler, the bottom of knockout drum is equipped with product oil export, top is respectively equipped with gas outlet and oil return opening, water cooling heat exchanger is connected between gas outlet and oil return opening, cooling water circulation pipe is connected between the shell side inlet and outlet of water cooling heat exchanger, the hydrogen transfer line communicated with tube side is additionally provided at the top of water cooling heat exchanger, the end of hydrogen transfer line is connected with vertical compressor entrance liquid separation tank, the bottom of vertical compressor entrance liquid separation tank is equipped with discharge outlet, top is equipped with the pure hydrogen discharging pipeline for leading to compression machine inlet, the discharge port of compressor is equipped with for be connected to hydrodesulphurisatioreactors reactors feeding pipe plus hydrogen pipeline, pure hydrogen discharges on pipeline It is additionally provided with the new hydrogen being connected to hydrogen source gas and branch is added.This system, which avoids, causes hydrogen to waste, energy conservation and environmental protection.
Description
Technical field
The utility model relates to n-hexane production equipment, especially a kind of dehydrogenation hydrogen supply cyclic system for n-hexane production
System.
Background technique
Normal hexane product after pre-heating system preheats, enters hydrodesulfurization reaction usually using stable light hydrocarbon as raw material
Device (built-in dearsenic catalyst and Hydrobon catalyst), the sulfur-containing compound (mercaptan, thioether etc.) in raw material are made in catalyst
It is reacted with lower with hydrogen, generates H2S and water；Dechlorinated desulfurization reactor (built-in dechlorination catalyst and hydrogen sulfide absorption again
Catalyst), the H in reactant2S is adsorbed removing；Material after desulfurization enters de- benzene reactor (interior removable benzene catalyst),
Aromatic component in raw material is reacted under the action of catalyst, generates cycloalkane, achievees the purpose that remove benzene in aromatic component,
The product for finally carrying a small amount of hydrogen enters knockout drum, by product and Hydrogen Separation, then desulfurization take off the product after benzene into
Enter rectifier unit to be separated, finally obtains the normal hexane product of different content (according to customer requirement).
In the process, hydrogen and feedstock oil stable light hydrocarbon be by entering hydrodesulphurisatioreactors reactors together with feeding pipe, and
The product for carrying a small amount of hydrogen generally goes through knockout drum separation, and the hydrogen after being generally separated usually utilizes torch burning, prevents
It only explodes and pollutes environment, but this process causes the waste of hydrogen.
Summary of the invention
The purpose of this utility model is to provide for a kind of dehydrogenation for n-hexane production for avoiding hydrogen waste
The hydrogen supply circulatory system, energy conservation and environmental protection.
The technical solution of the utility model is:
A kind of dehydrogenation hydrogen supply circulatory system for n-hexane production, including for connecting with the discharging pipeline of de- benzene reactor
The knockout drum connect, is characterized in that: the knockout drum is sleeping tank, and feeding line is equipped with the sky for cooling
Cooler, the tube side outlet of the air cooler are equipped with temperature sensor, and the bottom of the knockout drum is equipped with product oil export, top
Portion is respectively equipped with gas outlet and oil return opening, and water cooling heat exchanger, the water cooling heat exchange are connected between the gas outlet and oil return opening
The tube-side inlet pipeline of device is connect with gas outlet, and tube side outlet line is connect with oil return opening, the shell side inlet of water cooling heat exchanger and
It is connected with cooling water circulation pipe between outlet, the hydrogen transfer line communicated with tube side is additionally provided at the top of water cooling heat exchanger,
The end of the hydrogen transfer line is connected with vertical compressor entrance liquid separation tank, the bottom of the vertical compressor entrance liquid separation tank
Portion is equipped with discharge outlet, and top is equipped with the pure hydrogen discharging pipeline for leading to compression machine inlet, and the discharge port of the compressor is equipped with
For be connected to hydrodesulphurisatioreactors reactors feeding pipe plus hydrogen pipeline, it is additionally provided with and hydrogen gas on the pure hydrogen discharging pipeline
Branch is added in the new hydrogen of source connection.
The above-mentioned dehydrogenation hydrogen supply circulatory system for n-hexane production, the compressor are additionally provided with leakage-preventing drainage tube
Line, and the end of leakage-preventing drainage pipeline connects torch liquid separation tank, the top of the torch liquid separation tank is equipped with towards the useless of torch
Gas pipeline.Torch liquid separation tank is introduced a gas into using leakage-preventing drainage pipeline when compressor seal is not revealed sternly, then is led to
It crosses waste line and guides torch into and light, to avoid exploding.
The above-mentioned dehydrogenation hydrogen supply circulatory system for n-hexane production, the new hydrogen be added branch road be equipped with flowmeter and
System adjusts valve.
The beneficial effects of the utility model are:
1, cool down by using air cooler, in order to product in knockout drum with the Hydrogen Separation of entrainment, hydrogen folder
Band part oil gas enters water cooling heat exchanger by gas outlet, and after exchanging heat, oil gas condensation falls into gas-liquid point by oil return opening at oil
From the separation of hydrogen and oil gas in tank, is realized, hydrogen then passes through the hydrogen transfer line at the top of water cooling heat exchanger and transmits to vertical
Formula suction port of compressor liquid separation tank, the steam carried secretly in hydrogen is condensed and is fallen in vertical compressor entrance liquid separation tank, by draining
Mouthful discharge, completes the separation of hydrogen and steam, and then, pure hydrogen enters compressor pressure-raising by pure hydrogen discharging pipeline, and by
Compressor adds hydrogen pipeline to be sent to the feeding pipe of hydrodesulphurisatioreactors reactors, completes recycling for hydrogen, avoids wasting, energy conservation
Environmental protection.
2, the purity that branch improves circulating hydrogen is added by new hydrogen, guarantees the desulfurization effect of production line.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1. air coolers, 2. temperature sensors, 3. feeding lines, 4. knockout drums, 5. product oil exports, 6. go out
Port, 7. oil return openings, 8. water cooling heat exchangers, 9. hydrogen transfer lines, 10. cooling water circulation pipes, 11. vertical compressor entrances
Liquid separation tank, 12. discharge outlet, 13. systems adjust valve, 14. new hydrogen addition branches, 15. flowmeters, 16. pure hydrogens discharging pipeline, 17. to add
Hydrogen pipeline, 18. compressors, 19. leakage-preventing drainage pipelines, 20. torch liquid separation tanks, 21. waste lines.
Specific embodiment
As shown in Figure 1, this be used for n-hexane production the dehydrogenation hydrogen supply circulatory system, including for de- benzene reactor go out
The knockout drum 4 of expects pipe line connection, the knockout drum 4 are sleeping tank, and feeding line 3 is equipped with for the air-cooled of cooling
The tube side outlet of device 1, the air cooler 1 is equipped with temperature sensor 2.The bottom of the knockout drum 4 is equipped with product oil export
5, top is respectively equipped with gas outlet 6 and oil return opening 7, and water cooling heat exchanger 8 is connected between the gas outlet 6 and oil return opening 7, described
The tube-side inlet pipeline of water cooling heat exchanger 8 is connect with gas outlet 6, and tube side outlet line is connect with oil return opening 7, water cooling heat exchanger 8
Shell side inlet and outlet between be connected with cooling water circulation pipe 10, the top of water cooling heat exchanger 8 is additionally provided with to be communicated with tube side
Hydrogen transfer line 9, the end of the hydrogen transfer line 9 is connected with vertical compressor entrance liquid separation tank 11, described vertical
The bottom of suction port of compressor liquid separation tank 11 is equipped with discharge outlet 12, and top is equipped with the pure hydrogen discharge nozzle towards 18 feed inlet of compressor
The discharge port of line 16, the compressor 18 is equipped with for be connected to hydrodesulphurisatioreactors reactors feeding pipe plus hydrogen pipeline 17, institute
State the new hydrogen addition branch 14 for being additionally provided on pure hydrogen discharging pipeline 16 and being connected to hydrogen source gas.
In the present embodiment, the compressor 18 is additionally provided with leakage-preventing drainage pipeline 19, and the end of leakage-preventing drainage pipeline 19
End connection torch liquid separation tank 20, the top of the torch liquid separation tank 20 are equipped with the waste line 21 towards torch.When compressor 18
It is poorly sealed to introduce a gas into torch liquid separation tank 20 using leakage-preventing drainage pipeline 19 when revealing, then pass through waste line 21
It guides torch into light, to avoid exploding.For new hydrogen additional amount is monitored and controlled, the new hydrogen is added branch 14 and is equipped with stream
Meter 15 and system adjust valve 13.
When work, after dehydrogenation product oil after air cooler 1 enter knockout drum 4, knockout drum 4 complete hydrogen with
The separation of product oil, hydrogen enter water cooling heat exchanger 8, complete the separation with oil gas by water cooling heat exchanger 8, oil gas finally condenses
It is back in knockout drum 4 at oil, hydrogen then enters vertical compressor entrance liquid separation tank 11, completion and steam in this tank
Separation, then enter 18 pressure-raising of compressor jointly with the hydrogen newly supplemented, and hydrodesulphurisatioreactors reactors are sent back to by compressor 18
Feeding pipe, realization recycle.
Claims (3)
1. a kind of dehydrogenation hydrogen supply circulatory system for n-hexane production, including for being connect with the discharging pipeline of de- benzene reactor
Knockout drum, it is characterised in that: the knockout drum is sleeping tank, and feeding line is equipped with for the air-cooled of cooling
Device, the tube side outlet of the air cooler are equipped with temperature sensor, and the bottom of the knockout drum is equipped with product oil export, top
It is respectively equipped with gas outlet and oil return opening, water cooling heat exchanger, the water cooling heat exchanger are connected between the gas outlet and oil return opening
Tube-side inlet pipeline connect with gas outlet, tube side outlet line is connect with oil return opening, the shell side inlet of water cooling heat exchanger and go out
It is connected with cooling water circulation pipe between mouthful, the hydrogen transfer line communicated with tube side, institute are additionally provided at the top of water cooling heat exchanger
The end for stating hydrogen transfer line is connected with vertical compressor entrance liquid separation tank, the bottom of the vertical compressor entrance liquid separation tank
Equipped with discharge outlet, top is equipped with the pure hydrogen discharging pipeline for leading to compression machine inlet, and the discharge port of the compressor, which is equipped with, to be used
In being additionally provided on be connected to hydrodesulphurisatioreactors reactors feeding pipe plus hydrogen pipeline, pure hydrogen discharging pipeline and hydrogen source gas
Branch is added in the new hydrogen of connection.
2. the dehydrogenation hydrogen supply circulatory system according to claim 1 for n-hexane production, it is characterised in that: the compression
Machine is additionally provided with leakage-preventing drainage pipeline, and the end of leakage-preventing drainage pipeline connects torch liquid separation tank, the torch liquid separation tank
Top is equipped with the waste line towards torch.
3. the dehydrogenation hydrogen supply circulatory system according to claim 1 for n-hexane production, it is characterised in that: the new hydrogen
Branch road is added and is equipped with flowmeter and system tune valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198839.7U CN209464823U (en) | 2018-12-26 | 2018-12-26 | The dehydrogenation hydrogen supply circulatory system for n-hexane production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198839.7U CN209464823U (en) | 2018-12-26 | 2018-12-26 | The dehydrogenation hydrogen supply circulatory system for n-hexane production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209464823U true CN209464823U (en) | 2019-10-08 |
Family
ID=68089773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822198839.7U Active CN209464823U (en) | 2018-12-26 | 2018-12-26 | The dehydrogenation hydrogen supply circulatory system for n-hexane production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209464823U (en) |
-
2018
- 2018-12-26 CN CN201822198839.7U patent/CN209464823U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204815724U (en) | Device is optimized to transform technology condensate strip | |
| CN107941047A (en) | A kind of heat exchanger, the four Hydrogenation iso-butane device and method of mixing carbon using the heat exchanger | |
| CN209464823U (en) | The dehydrogenation hydrogen supply circulatory system for n-hexane production | |
| CN207816054U (en) | A kind of heat exchanger, the four Hydrogenation iso-butane device of mixing carbon using the heat exchanger | |
| CN104177325A (en) | Trioxymethylene preparation apparatus and method thereof | |
| CN105271324B (en) | A kind of low pressure exhaust steam recycling system | |
| CN112479801A (en) | Electronic-grade propylene rectification and purification method | |
| CN203744755U (en) | Condenser | |
| CN213286863U (en) | Monoether synthesizer | |
| CN206069360U (en) | A kind of heat exchange of energy-conserving and environment-protective and condenser system | |
| CN206008581U (en) | A kind of return stirring tank gas-liquid separation device | |
| CN106397289B (en) | The process units and its production method of a kind of Sodium Dimethyldithiocarbamate | |
| CN106949751A (en) | Dehydrogenation overhead condenser | |
| CN213286864U (en) | Monoether synthesis system | |
| CN103017386B (en) | A kind of sodium formate synthesis tail gas waste heat comprehensive utilization system and method | |
| CN202030538U (en) | Integrated system for vaporizing and purifying industrial liquid ammonia | |
| CN206755909U (en) | Dehydrogenation overhead condenser | |
| CN220737509U (en) | Continuous production system for phosphorus trichloride | |
| CN206986072U (en) | A kind of thiourea dioxide continuous process system | |
| CN206965174U (en) | Additive reactor steam condensing reflux device | |
| CN204881253U (en) | Steam condensate water recycle system | |
| CN206055582U (en) | A kind of synthesis ammonia plug-in type waste heat boiler | |
| CN207101945U (en) | A kind of anticorrosive paint process steam formula condenser device | |
| CN206188684U (en) | Reduce device that propylene carbonylation process central plain material consumed | |
| CN209470566U (en) | Desulfurization takes off benzene production system waste heat recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |