CN109812703A - It is a kind of to utilize self-produced hydrogen more than needed for Recovery of Seal Oil oil depot tail gas process - Google Patents
It is a kind of to utilize self-produced hydrogen more than needed for Recovery of Seal Oil oil depot tail gas process Download PDFInfo
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- CN109812703A CN109812703A CN201910182982.3A CN201910182982A CN109812703A CN 109812703 A CN109812703 A CN 109812703A CN 201910182982 A CN201910182982 A CN 201910182982A CN 109812703 A CN109812703 A CN 109812703A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 135
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 135
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000007789 gas Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 claims abstract description 37
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 34
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 32
- 238000001179 sorption measurement Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000003139 buffering effect Effects 0.000 claims abstract description 14
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 69
- 238000005984 hydrogenation reaction Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000001413 cellular effect Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 description 12
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- -1 benzene hydrocarbon Chemical class 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000895 extractive distillation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
-
- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
Landscapes
- Motor Or Generator Cooling System (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
It is Recovery of Seal Oil oil depot tail gas process that the present invention relates to a kind of using self-produced hydrogen more than needed, and device includes dispersing gas dashpot, air-introduced machine, hydrogen buffering slot, pressure-regulating valve, pressure reducing valve, hydrogen self-supporting regulation valve, nitrogen self-supporting regulation valve, safety valve (one), safety valve (two), valve (one), valve (two), pressure record control instrument PRC01 and pressure record control instrument PRC02.The beneficial effect is that: the gas source using the hydrogen more than needed of PSA pressure swing adsorption hydrogen production cellular manufacture as oil depot dispersing gas system sealing, dispersing gas recycling is sent under controllable state the raw material gas piping of PSA pressure swing adsorption hydrogen production unit, it can solve the problems, such as the direct outlet of oil depot dispersing gas, it reduces environmental pollution, it is at low cost, energy conservation and environmental protection.
Description
Technical field
The present invention relates to metallurgical coking technical fields, more particularly to a kind of oily for Recovery of Seal Oil using self-produced hydrogen more than needed
Library tail gas process.
Background technique
Metallurgical coking industry, benzol hydro refining unit (containing pretreatment unit, add comprising PSA pressure swing adsorption hydrogen production unit, master device
Hydrogen unit, extractive distillation unit, dimethylbenzene distillation unit), oil depot unit (including feed sump, product storage tank etc.), automobile dress
Unload platform.Wherein, master device medial launder dispersing gas introduces negative pressure coal by release slot with nitrogen as sealing gas, and by dispersing gas
Gas system；Truck platform, due to the particularity of loading-unloading vehicle, at present using the in the majority of absorption process, because washing oil is to benzene hydrocarbon gase
Assimilation effect it is very good, also have using condensation-adsorption method individually；And oil depot uses metal internal floating roof tank, without any sealing
Measure directly connects atmosphere.In recent years, being gradually increased with national requirements for environmental protection, ultra-clean discharge are gradually risen, ultra-clean discharge
Index also becomes production technology advance and chooses one of top-priority index.For the oil depot of benzol hydro refining unit, although with
Metal internal floating roof tank, but also can not meet the requirement of ultra-clean discharge, solution can be sealed using nitrogen same as master device
Mode meet the requirements.But this scheme will lead to the increasing of whole device exhausting waste gas amount, during reaching the peak value of exhaust, pole
It is likely to affect the stability of the quality for inhaling the coal gas of gas piping and gas cleaning system operation.
The hydrogen of PSA pressure swing adsorption hydrogen production cellular manufacture inside benzol hydro refining unit has certain surplus capacity, with 100,000 t/a
For the scale of crude benzole hydrogenation, the amounts of hydrogen 1700Nm of production3/ h, hydrogen production potential 200Nm at least more than needed3/ h or so, if made
To seal gas source, flow fully meets requirement, and since oil depot uses metal internal floating roof tank, benzene vapor amount is very
Few, it is basically hydrogen that tail gas, which is very clean, can directly mix the original for being incorporated to PSA pressure swing adsorption hydrogen production unit
Material gas, that is, coal gas is as gas source, and PSA pressure swing adsorption hydrogen production unit itself also has certain oil removing ability, can thus subtract
Few dispersing gas introduces the exhausted air quantity of negative pressure coal gas system, and certainly, tail gas of this part using hydrogen as sealing gas can also draw
People's negative pressure coal gas system, and have no effect to the gas quality of coal gas system.
In addition, calculating from price, since hydrogen itself does not consume during as sealing gas, tail gas is returned to
Therefore the raw material coal gas of PSA pressure swing adsorption hydrogen production unit only considers the processing charges of hydrogen, PSA pressure swing adsorption hydrogen production
Every cubic metre of processing charges is less than 0.5 yuan, the close prices with nitrogen, so, it is also reasonable in expense, it is important to can be with
Hydrogen more than needed is rationally used.
It therefore, is section using the hydrogen more than needed of PSA pressure swing adsorption hydrogen production cellular manufacture as the technique of oil depot sealing gas
It learns, is economical, feasible, it would be highly desirable to research and develop.
Summary of the invention
To overcome prior art defect, it is close that the technical problem to be solved by the present invention is to provide a kind of using self-produced hydrogen more than needed
Envelope recycling oil depot tail gas process, it is close as oil depot dispersing gas system using the hydrogen more than needed of PSA pressure swing adsorption hydrogen production cellular manufacture
The gas source of envelope sends dispersing gas recycling under controllable state the raw material gas piping of PSA pressure swing adsorption hydrogen production unit, can solve
The direct outlet problem of oil depot dispersing gas, reduces environmental pollution, at low cost, energy conservation and environmental protection.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
It is a kind of to utilize self-produced hydrogen more than needed for Recovery of Seal Oil oil depot tail gas process, which comprises the following steps:
1) sealing hydrogen is drawn on benzene hydrogenation master device Hydrogen Line from sending to for PSA pressure swing adsorption hydrogen production unit, is led to
It crosses after pressure reducing valve is depressurized to 0.1MPa and is sent to hydrogen buffering slot, downstream pressure is controlled by hydrogen self-supporting regulation valve after buffering
After 50kPa, it is respectively connected to be sent to the headspace of each oil depot, implements to each oil depot hydrogen seal；
2) release tail gas is drawn from diffusion mouth at the top of each oil depot, is controlled by pressure-regulating valve and is kept release exhaust system
Pressure is stablized in 50kPa, and extra release tail gas is sent into dispersing gas dashpot, divides two-way to send out by air-introduced machine, be sent into PSA all the way
The hydrogen manufacturing of pressure swing adsorption hydrogen production unit uses gas piping to be recycled, another way is diffused as spare feeding benzene hydrogenation master device
General pipeline sends to the suction gas piping of gas cleaning system through benzene hydrogenation master device release slot；
3) it when pressure record control instrument PRC02 shows the pressure of air-introduced machine preceding pipeline more than or less than 10kPa, adjusts
The absorbing quantity of air-introduced machine is controlled, keeps the pressure of air-introduced machine preceding pipeline constant in 10kPa or so；
4) surplus hydrogen (>=0.1MPa) accesses the release tail gas after air-introduced machine by safety valve (one) after the pressure reducing valve
Pipeline；
5) before surplus hydrogen (>=50kPa) accesses air-introduced machine by safety valve (two) after the hydrogen self-supporting regulation valve
Dispersing gas dashpot；
6) nitrogen is drawn from nitrogen header pipe, after being depressurized to 50kPa by nitrogen self-supporting regulation valve, accesses hydrogen self-supporting
Bailout gas on Hydrogen Line after regulating valve, before safety valve (two), as oil depot sealing system when opening, stopping work.
A kind of to utilize self-produced hydrogen more than needed for Recovery of Seal Oil oil depot tail gas process, device includes dispersing gas dashpot, draws
Blower, hydrogen buffering slot, pressure-regulating valve, pressure reducing valve, hydrogen self-supporting regulation valve, nitrogen self-supporting regulation valve, safety valve
(1), safety valve (two), valve (one), valve (two), pressure record control instrument PRC01 and pressure record control instrument
PRC02, which is characterized in that the pressure reducing valve, hydrogen buffering slot, hydrogen self-supporting regulation valve are sequentially connected, and setting becomes from PSA
Sending to for Adsorption Hydrogen unit of pressure is drawn on benzene hydrogenation master device Hydrogen Line, is respectively connected to the Hydrogen Line at the top of each oil depot
On；The pressure-regulating valve and pressure record control instrument PRC01 are interlocked, and setting summarizes from diffusion mouth extraction at the top of each oil depot
It accesses on the release exhaust system pipeline of dispersing gas dashpot, air-introduced machine and pressure record control after dispersing gas dashpot is set
Connecting valve (one) access the hydrogen manufacturing gas piping, separately of PSA pressure swing adsorption hydrogen production unit afterwards all the way after instrument PRC02 processed interlocking
Connecting valve (two) accesses benzene hydrogenation master device release general pipeline afterwards all the way；The safety valve (one) is arranged after pressure reducing valve to air inducing
On safety relief pipeline between after machine；The safety valve (two) is arranged after hydrogen self-supporting regulation valve to dispersing gas dashpot
Between safety relief pipeline on；The nitrogen self-supporting regulation valve is drawn from nitrogen header pipe, accesses hydrogen self-supporting regulation valve
Afterwards, on the Hydrogen Line before safety valve (two).
The maximum stream flow of the pressure reducing valve, hydrogen self-supporting regulation valve and nitrogen self-supporting regulation valve is oil depot sealing system
Peak flow.
The air-introduced machine is frequency-changing adjustable air-introduced machine.
The storage tank of the oil depot is all made of metal internal floating roof tank, if should add washing oil before air-introduced machine using fixed tank
Cleaning system.
Compared with prior art, the beneficial effects of the present invention are:
1) made using the surplus hydrogen substitution nitrogen of the owned PSA pressure swing adsorption hydrogen production cellular manufacture of benzol hydro refining unit
For the gas source of dispersing gas system sealing, dispersing gas is sent under controllable state back to the raw material coal gas of PSA pressure swing adsorption hydrogen production unit,
The nitrogen amount for introducing negative pressure coal gas system can be reduced, the influence to gas piping gas quality is inhaled is reduced；
2) technique of the present invention is just with hydrogen, since hydrogen itself does not disappear during as sealing gas
Consumption, tail gas are returned to the raw material coal gas of PSA pressure swing adsorption hydrogen production unit, do not consume raw material coal gas, then, only consider adding for hydrogen
Expenses of labour, the close prices of the processing charges and nitrogen of hydrogen, but the expense of the equipment of making nitrogen is saved, it is low in cost, easily
In realization；
3) nitrogen is substituted using hydrogen, gas source is reliable and stable, can cannot during peak value to avoid nitrogen in prior art
It is replenished in time, the case where large quantity of air enters negative pressure coal gas system generation；
4) it solves the problems, such as the direct outlet of oil depot dispersing gas, reduces environmental pollution.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
In figure: 1- oil depot 2- air-dispersing dashpot 3- air-introduced machine 4- hydrogen buffering slot 5- pressure-regulating valve 6- pressure reducing valve
7- hydrogen self-supporting regulation valve 8- nitrogen self-supporting regulation valve 9- safety valve (one) 10- safety valve (two) 11- valve (one)
12- valve (two) 13-PSA pressure swing adsorption hydrogen production unit 14- benzene hydrogenation master device diffuses slot 15- hydrogen manufacturing gas piping
16- goes benzene hydrogenation master device Hydrogen Line 16- to go benzene hydrogenation master device Hydrogen Line 17- coal gas off-gas 18- benzene hydrogenation master
Device release general pipeline 19- removes the suction gas piping PRC01/PRC02- pressure record control instrument of gas cleaning system
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, a kind of self-produced hydrogen more than needed of utilization of the present invention is Recovery of Seal Oil oil depot tail gas process, including
Following steps:
1) sealing hydrogen draws on benzene hydrogenation master device Hydrogen Line 16 from sending to for PSA pressure swing adsorption hydrogen production unit 13
Out, it is sent to hydrogen buffering slot 4 after being depressurized to 0.1MPa (1.6MPa before depressurizing) by pressure reducing valve 6, after buffering certainly by hydrogen
Vertical regulating valve 7 controls downstream pressure after 50kPa, to be respectively connected to be sent to the headspace of each oil depot 1, implements to each oil depot
Hydrogen seal；
2) release tail gas is drawn from the diffusion mouth at each 1 top of oil depot, by pressure-regulating valve 5 (by pressure record controller
Table PRC01 interlocked control) control keeps the pressure of release exhaust system to stablize in 50kPa, and extra release tail gas is sent into release
Gas dashpot 2 divides two-way to send out by air-introduced machine 3, is sent into the hydrogen manufacturing gas piping 15 of PSA pressure swing adsorption hydrogen production unit 13 all the way
Be recycled, another way as spare feeding benzene hydrogenation master device diffuse general pipeline 18, through benzene hydrogenation master device release slot 14 give
The suction gas piping 19 of gas cleaning system is gone to be recycled；
3) it when pressure record control instrument PRC02 shows the pressure of 3 preceding pipeline of air-introduced machine more than or less than 10kPa, adjusts
The absorbing quantity of section control air-introduced machine 3, keeps the pressure of 3 preceding pipeline of air-introduced machine constant in 10kPa or so；
4) surplus hydrogen (>=0.1MPa) accesses the release tail after air-introduced machine 3 by safety valve (one) 9 after the pressure reducing valve 6
Feed channel is recycled；
5) surplus hydrogen (>=0.1MPa) passes through the access air-introduced machine 3 of safety valve (two) 10 after the hydrogen self-supporting regulation valve
Preceding dispersing gas dashpot 2, is recycled；
6) nitrogen is drawn from nitrogen header pipe, and after being depressurized to 50kPa by nitrogen self-supporting regulation valve 8, access hydrogen is supported oneself
On Hydrogen Line after formula regulating valve 7, before safety valve (two) 10, as the bailout gas of oil depot sealing system when opening, stopping work, i.e.,
Before main process unit goes into operation, after shut-down, when without hydrogen output, using the nitrogen-sealed oil depot from nitrogen header pipe, prevent
1 tail gas of oil depot directly diffuses outlet, pollutes environment.
A kind of to utilize self-produced hydrogen more than needed for Recovery of Seal Oil oil depot tail gas process, device includes dispersing gas dashpot 2, draws
Blower 3, hydrogen buffering slot 4, pressure-regulating valve 5, pressure reducing valve 6, hydrogen self-supporting regulation valve 7, nitrogen self-supporting regulation valve 8, peace
Full valve (one) 9, safety valve (two) 10, valve (one) 11, valve (two) 12, pressure record control instrument PRC01 and pressure record
Control instrument PRC02, the pressure reducing valve 6, hydrogen buffering slot 4, hydrogen self-supporting regulation valve 7 are sequentially connected, and setting becomes from PSA
Sending to for Adsorption Hydrogen unit 13 of pressure is drawn on benzene hydrogenation master device Hydrogen Line 16, is respectively connected to the hydrogen at the top of each oil depot 1
In feed channel, self-produced hydrogen more than needed is sent to the headspace of each oil depot 1 respectively, constitutes hydrogen seal system, implemented to each oil
The hydrogen seal in library 1；The pressure-regulating valve 5 and pressure record control instrument PRC01 is interlocked, and setting is at the top of each oil depot 1
Diffusion mouth is drawn on the release exhaust system pipeline for summarizing access dispersing gas dashpot 2, drawing after dispersing gas dashpot 2 is arranged in
Blower 3 and pressure record control instrument PRC02 are interlocked, and PSA pressure-variable adsorption system is accessed after 3 one tunnel connecting valve (one) 11 of air-introduced machine
Benzene hydrogenation master device is accessed after the hydrogen manufacturing of hydrogen unit 13 gas piping 15, another way connecting valve (two) 12 diffuses general pipeline 18
On, the suction gas piping 19 that slot 14 sends to gas cleaning system is diffused by benzene hydrogenation master device；With valve (one) 11 and valve
The selection of (two) 12 control gas circuits；The safety relief after pressure reducing valve 6 between after air-introduced machine 3 is arranged in the safety valve (one) 9
On pipeline, when passing through Hydrogen Vapor Pressure >=0.1MPa after pressure reducing valve 6, extra hydrogen is drained and is recycled,
Ensure system safety；The safety valve (two) 10 is arranged in after hydrogen self-supporting regulation valve 7 to the peace between dispersing gas dashpot 2
On full relief pipeline, when passing through Hydrogen Vapor Pressure >=50kPa after hydrogen self-supporting regulation valve 7, extra hydrogen is drained
And recycled, it is ensured that system safety；The nitrogen self-supporting regulation valve 8 is drawn from nitrogen header pipe, and access hydrogen is supported oneself
On Hydrogen Line after formula regulating valve 7, before safety valve (two) 10, as the bailout gas of oil depot sealing system when opening, stopping work, i.e.,
Before main process unit goes into operation, after shut-down, when without hydrogen output, using the nitrogen-sealed oil depot from nitrogen header pipe, prevent
The release of 1 tail gas of oil depot.
The maximum stream flow of the decompression 6, hydrogen self-supporting regulation valve 7 and nitrogen self-supporting regulation valve 8 is oil depot sealing system
The peak flow of system.
The air-introduced machine 3 is frequency-changing adjustable air-introduced machine.
Described its storage tank of oil depot 1 is all made of metal internal floating roof tank, if should be added and be washed before air-introduced machine 3 using fixed tank
Oily cleaning system.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of utilize self-produced hydrogen more than needed for Recovery of Seal Oil oil depot tail gas process, which comprises the following steps:
1) sealing hydrogen is drawn on benzene hydrogenation master device Hydrogen Line from sending to for PSA pressure swing adsorption hydrogen production unit, by subtracting
Pressure valve is sent to hydrogen buffering slot after being depressurized to 0.1MPa, controls downstream pressure by hydrogen self-supporting regulation valve after buffering and is
After 50kPa, it is respectively connected to be sent to the headspace of each oil depot, implements to each oil depot hydrogen seal；
2) release tail gas is drawn from diffusion mouth at the top of each oil depot, and the pressure for keeping release exhaust system is controlled by pressure-regulating valve
Stablize in 50kPa, extra release tail gas is sent into dispersing gas dashpot, divides two-way to send out by air-introduced machine, is sent into PSA transformation all the way
The hydrogen manufacturing of Adsorption Hydrogen unit uses gas piping to be recycled, another way is total as the release of spare feeding benzene hydrogenation master device
Pipe sends to the suction gas piping of gas cleaning system through benzene hydrogenation master device release slot；
3) when pressure record control instrument PRC02 shows the pressure of air-introduced machine preceding pipeline more than or less than 10kPa, control is adjusted
The absorbing quantity of air-introduced machine keeps the pressure of air-introduced machine preceding pipeline constant in 10kPa or so；
4) surplus hydrogen (>=0.1MPa) accesses the release exhaust pipe after air-introduced machine by safety valve (one) after the pressure reducing valve；
5) surplus hydrogen (>=50kPa) accesses the release before air-introduced machine by safety valve (two) after the hydrogen self-supporting regulation valve
Gas dashpot；
6) nitrogen is drawn from nitrogen header pipe, and after being depressurized to 50kPa by nitrogen self-supporting regulation valve, access hydrogen self-supporting is adjusted
Bailout gas on Hydrogen Line after valve, before safety valve (two), as oil depot sealing system when opening, stopping work.
2. realizing that a kind of self-produced hydrogen more than needed of utilization described in claim 1 is Recovery of Seal Oil oil depot tail gas process, device packet
Dispersing gas dashpot, air-introduced machine, hydrogen buffering slot, pressure-regulating valve, pressure reducing valve, hydrogen self-supporting regulation valve, nitrogen is included to support oneself
Formula regulating valve, safety valve (one), safety valve (two), valve (one), valve (two), pressure record control instrument PRC01 and pressure
Recording controller table PRC02, which is characterized in that the pressure reducing valve, hydrogen buffering slot, hydrogen self-supporting regulation valve are sequentially connected,
It is arranged in from sending to for PSA pressure swing adsorption hydrogen production unit and is drawn on benzene hydrogenation master device Hydrogen Line, is respectively connected to each oil depot
On the Hydrogen Line at top；The pressure-regulating valve and pressure record control instrument PRC01 are interlocked, and are arranged at the top of each oil depot
Diffusion mouth is drawn on the release exhaust system pipeline for summarizing access dispersing gas dashpot, the air inducing after dispersing gas dashpot is arranged in
Connecting valve (one) accesses the system of PSA pressure swing adsorption hydrogen production unit afterwards all the way after machine and pressure record control instrument PRC02 interlocking
Hydrogen gas piping, another way connecting valve (two) access benzene hydrogenation master device release general pipeline afterwards；Safety valve (one) setting
On the safety relief pipeline after pressure reducing valve between after air-introduced machine；The safety valve (two) is arranged in hydrogen self-supporting regulation valve
Afterwards on the safety relief pipeline between dispersing gas dashpot；The nitrogen self-supporting regulation valve is drawn from nitrogen header pipe, access
On Hydrogen Line after hydrogen self-supporting regulation valve, before safety valve (two).
3. a kind of self-produced hydrogen more than needed of utilization according to claim 2 is Recovery of Seal Oil oil depot tail gas process, feature exists
In the maximum stream flow of the pressure reducing valve, hydrogen self-supporting regulation valve and nitrogen self-supporting regulation valve is the peak of oil depot sealing system
It is worth flow.
4. a kind of self-produced hydrogen more than needed of utilization according to claim 2 is Recovery of Seal Oil oil depot tail gas process, feature exists
In the storage tank of the oil depot is all made of metal internal floating roof tank, if should add washing oil using fixed tank, before air-introduced machine cleans system
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182982.3A CN109812703B (en) | 2019-03-12 | 2019-03-12 | Process for recycling tail gas of oil depot by using self-produced surplus hydrogen as seal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182982.3A CN109812703B (en) | 2019-03-12 | 2019-03-12 | Process for recycling tail gas of oil depot by using self-produced surplus hydrogen as seal |
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| CN109812703A true CN109812703A (en) | 2019-05-28 |
| CN109812703B CN109812703B (en) | 2023-11-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201567228U (en) * | 2009-11-23 | 2010-09-01 | 苏州苏净保护气氛有限公司 | Ammonia decomposition pressure swing adsorption hydrogen production tail gas recovery device |
| CN203577575U (en) * | 2013-11-13 | 2014-05-07 | 苏州杜尔气体化工装备有限公司 | Waste gas recovery device for pressure swing adsorption hydrogen making machine |
| CN108525460A (en) * | 2018-03-09 | 2018-09-14 | 庞泰环保工程（江苏）有限公司 | A kind of industrial tail gas mixed gas recovery method |
| CN208042615U (en) * | 2018-03-09 | 2018-11-02 | 杭州中泰深冷技术股份有限公司 | A kind of coal chemical industry synthesis gas cryogenic separation co-production of methane gas system |
| CN109307276A (en) * | 2018-10-30 | 2019-02-05 | 中冶焦耐(大连)工程技术有限公司 | It is a kind of with coal gas be sealing coking tail gas burning process |
| CN109355088A (en) * | 2018-12-04 | 2019-02-19 | 中冶焦耐(大连)工程技术有限公司 | A kind of technique and system using gas cleaning system recycling coking tail gas |
-
2019
- 2019-03-12 CN CN201910182982.3A patent/CN109812703B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201567228U (en) * | 2009-11-23 | 2010-09-01 | 苏州苏净保护气氛有限公司 | Ammonia decomposition pressure swing adsorption hydrogen production tail gas recovery device |
| CN203577575U (en) * | 2013-11-13 | 2014-05-07 | 苏州杜尔气体化工装备有限公司 | Waste gas recovery device for pressure swing adsorption hydrogen making machine |
| CN108525460A (en) * | 2018-03-09 | 2018-09-14 | 庞泰环保工程（江苏）有限公司 | A kind of industrial tail gas mixed gas recovery method |
| CN208042615U (en) * | 2018-03-09 | 2018-11-02 | 杭州中泰深冷技术股份有限公司 | A kind of coal chemical industry synthesis gas cryogenic separation co-production of methane gas system |
| CN109307276A (en) * | 2018-10-30 | 2019-02-05 | 中冶焦耐(大连)工程技术有限公司 | It is a kind of with coal gas be sealing coking tail gas burning process |
| CN109355088A (en) * | 2018-12-04 | 2019-02-19 | 中冶焦耐(大连)工程技术有限公司 | A kind of technique and system using gas cleaning system recycling coking tail gas |
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| CN109812703B (en) | 2023-11-28 |
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