CN103754822B - Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation - Google Patents
Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation Download PDFInfo
- Publication number
- CN103754822B CN103754822B CN201410054519.8A CN201410054519A CN103754822B CN 103754822 B CN103754822 B CN 103754822B CN 201410054519 A CN201410054519 A CN 201410054519A CN 103754822 B CN103754822 B CN 103754822B
- Authority
- CN
- China
- Prior art keywords
- unit
- pretreatment
- valve
- stripping gas
- coke
- 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
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation, belongs to coke-oven gas refining and coke-oven gas PSA hydrogen generation, and particularly relates to a coke-oven gas PSA hydrogen generation device. The device is characterized in that a T joint is arranged on a pipeline between a hot blowing control valve F3 and a cold blowing control valve F4, which are connected in parallel with a pressure regulation valve F2, wherein one end of a nitrogen regeneration branch with a check valve is connected with the T joint, and the other end of the nitrogen regeneration branch is connected with a nitrogen source; a desorbed gas output pipe b of a pretreatment unit is provided with a T joint, is connected with an isolating valve F5 and a new independent gas outlet pipe respectively, and is connected with an isolating valve F6 and a discharge pipe to form double desorbed gas discharge recovery passages of the pretreatment unit. The device has the advantages that high-purity nitrogen is adopted, so that the back flushing regeneration of a regeneration tower can be effectively realized, the adsorption capability of the pretreatment unit can be improved, the content of coke-oven gas impurities entering a hydrogen extraction unit can be reduced, and permanent damage to an adsorbent of the hydrogen extraction unit can be avoided; double carrier passages of the pretreatment regeneration device can be conveniently switched according to actual production, and mutual interference during production is avoided.
Description
Technical field
The invention belongs to coke-stove gas refine, coke-stove gas psa hydrogen manufacturing, more particularly, to coke-stove gas psa device for producing hydrogen.
Background technology
Currently, coke-stove gas (coke-oven gas, abbreviation cog) its pretreatment unit regenerating unit of psa device for producing hydrogen
Formed by proposing hydrogen unit stripping gas branch road, pretreatment unit and the connection of pretreatment regeneration branch.Carry hydrogen unit stripping gas outlet tube a
It is connected to pre- by stripping gas surge tank, pressure-regulating valve f2, connecting tube, hot blow control valve f3, cold blowing control valve f4, heater
The porch of processing unit, will carry hydrogen unit stripping gas input pretreatment unit and make regeneration source of the gas；Propose the output of hydrogen unit stripping gas
Pipe a respectively with carry hydrogen unit, stripping gas surge tank, pressure-regulating valve f1 and discharge pipe and be connected, be pretreatment unit regeneration gap
Carry when (rise, reduce pressure) and arrange recovery approach outside hydrogen unit stripping gas.Pretreatment unit is set stripping gas outlet tube b and is connected with discharge pipe.
Take from the stripping gas carrying hydrogen unit, preprocessed regeneration branch carries out blowback to pretreatment unit regenerator, removing is attached to pre-
Impurity composition on processing unit regenerator adsorbent, then the discharge of the stripping gas outlet tube b by pretreatment unit, discharge pipe is out-of-bounds
Reclaim.During hot blow, stripping gas is drawn by carrying hydrogen unit, enters stripping gas surge tank, pressure-regulating valve f2, connecting tube, hot blow control
Valve f3 processed and heater, carry out blowback from top to pretreatment unit regenerator, then again by stripping gas outlet tube b, discharge pipe
Discharge and out-of-bounds reclaim.During cold blowing, stripping gas is drawn by carrying hydrogen unit, enters stripping gas surge tank, pressure-regulating valve f2, connecting tube
With cold blowing control valve f4, from top pretreatment unit regenerator is carried out with blowback, reduces regenerator adsorbent temperature, then again by
Stripping gas outlet tube b, discharge pipe are discharged and are out-of-bounds reclaimed.The defect existing is in psa device for producing hydrogen production process, due to from boundary
Outer cog impurity composition is exceeded, and (adsorbent adsorption saturation, unqualified cog passes through adsorbent bed to lead to pretreatment unit bed to penetrate
Layer), after the compressed unit of cog of contaminant overstandard, section compression, the impurity content of unit volume rises several times, saturation separates out,
Easily cause compression unit, the cooling core of section, blow-off pipe, relief valve root pipe, and carry hydrogen unit inlet filter,
Pipeline, pressure transmitter catheter blockage；Enter the cog contaminant overstandard carrying hydrogen unit, its stripping gas namely pretreatment unit regeneration
Source of the gas is also enriched with impurity, so that pretreatment unit regenerator is regenerated simultaneously also in adsorbing contaminant, reduces after this tower proceeds to absorption
Adsorption capacity, receives the ability of cog impurity weaker, so enters vicious cycle, until pretreatment unit does not have purification,
More seriously permanent damage carry hydrogen unit expensive, design shorten its use with device with the adsorbent (15 years) in life-span
In the life-span, increase renewal cost or reduce raw hydrogen purity, production capacity, affect continuous production, threaten safety in production.
Content of the invention
For the defect overcoming prior art to exist, it is an object of the invention to provide a kind of coke-stove gas psa hydrogen manufacturing is located in advance
Reason complex carries regenerating unit, optimizes hydrogen production process and controls, improve the absorbability of pretreatment unit, be lowered into carrying hydrogen unit
Cog impurity content, improves pretreatment unit regeneration effect, it is to avoid carries hydrogen unit adsorbent permanent damage and even scraps, stable product
Production cost can be reduced and is smoothed out it is ensured that producing with raw hydrogen purity.
Coke-stove gas psa device for producing hydrogen, including compression unit i section, pretreatment unit, compression unit ii, iii section, carries hydrogen
Unit and deoxidation drying unit, compression unit i section connects supply station by cog input pipe, carries hydrogen unit and connects deoxidation by outlet tube
Drying unit.Carry and arranging between hydrogen unit and pretreatment unit by stripping gas outlet tube a, stripping gas surge tank, pressure-regulating valve
F2 hot blow control valve f3 that connects and cold blowing control valve f4, heater and connecting tube composition pretreatment unit are using carrying hydrogen unit
Stripping gas regeneration branch；Stripping gas outlet tube a is connected with carrying hydrogen unit, is connected with pressure-regulating valve f1, discharge pipe, and composition is pre- to be located
Carry during reason regeneration unit gap and arrange passage outside hydrogen unit desorbing；Pretreatment unit is set stripping gas outlet tube b and is connected with discharge pipe, its
Feature be pressure-regulating valve f2 and and connect hot blow control valve f3, set threeway on the pipeline between cold blowing control valve f4, be provided with
Nitrogen regeneration branch road one end of check-valves is connected with threeway, and the other end is connected with source nitrogen, introduces nitrogen gas into pretreatment unit pair
Regenerator carries out blowback, realizes pretreatment unit using putting forward hydrogen unit stripping gas and nitrogen complex carries Regeneration Treatment；Described is pre-
The stripping gas outlet tube b of processing unit sets threeway, is connected with isolating valve, f5 and newly-built independent escape pipe respectively, with isolating valve, f6 and
Discharge pipe connects, and constitutes the double outer row's recovery approach of pretreatment unit stripping gas.
The present invention improves further, and the air inlet pipe of described nitrogen regeneration branch road sets reducer unit, flow control valve successively
Group, effusion meter and check-valves connect pressure-regulating valve f2 to stripping gas branch road with and hot blow control valve f3 connecing, cold blowing control
In threeway between valve f4, by air relief valve, the pressure of supplying nitrogen is controlled, Flow-rate adjustment valve group and effusion meter are to nitrogen
The input quantity of gas is controlled, and check-valves effectively prevent stripping gas from refunding nitrogen pipeline.
The present invention improves further, and described independent escape pipe sets isolating valve, f5, and one end connects stripping gas outlet tube b's
Threeway, the other end with out-of-bounds communicate, by during nitrogen regeneration tail gas discharge out-of-bounds reclaim, remove regenerator in impurity.
During work, it is first turned on isolating valve, f5, closes isolating valve, f6, pressure-regulating valve f2 changes Non-follow control, fully closed, adjustment
Put into automatically after pressure-regulating valve f1 control pressure；The stripping gas carrying hydrogen unit puies forward hydrogenolysis air-breathing by after the extraction of a point through the entrance of b point
Surge tank buffering, storage, then recovery outside battery limit (BL) is sent to through i point in a balanced way by pressure-regulating valve f1 adjustment；Set nitrogen flow to adjust
Section valve group flow puts into automatically, slowly opens reducer unit, adjusts secondary pressure, nitrogen is then through reducer unit, flow control valve
Group, effusion meter, check-valves, c, d, f3(f4), e, f supply pretreatment unit regenerator hot blow (cold blowing), nitrogen regeneration tail gas warp
G, h, f5, independent escape pipe are discharged and are out-of-bounds reclaimed；If cog quality takes a turn for the better, pretreatment unit is used instead and is proposed the regeneration of hydrogen unit stripping gas,
F1, f2 control pressure only need to be reset, put into automatically, turn off nitrogen reducer unit and can return to former flow process.
Compared with prior art, advantage is novel, simple and reasonable for structure；Employ nitrogen as regenerating source of the gas, cost
Low, safety is good, and pretreatment unit adsorbent will not produce local spontaneous combustion, the high nitrogen of cleanliness factor because of high temperature under hot blow state
Effectively regenerator can be carried out with pulse cleaning, improve the absorbability of pretreatment unit, the cog being lowered into carrying hydrogen unit is miscellaneous
Matter content, it is to avoid carry hydrogen unit adsorbent permanent damage and even scrap, stable productivity and raw hydrogen purity, reduce production cost,
Ensure that production is smoothed out；Pretreatment regenerating unit complex carries passage mutually can not done during production according to produce reality convenient switching
Disturb；The tail gas producing during pretreatment unit nitrogen regeneration all reclaims, environmentally safe.
Brief description
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the coke-stove gas psa device for producing hydrogen general flow chart with nitrogen regeneration branch road.
In figure: 1-cog input pipe, 2- compression unit i section, 3- pretreatment unit, 4- compression unit ii, iii section, 5- carry hydrogen
Unit, 6- outlet tube, 7- escape pipe, 8- isolating valve, f5,9- stripping gas outlet tube b, 10- isolating valve, f6,11- heater, 12- heat
Blow control valve f3,13- connecting tube, 14- pressure-regulating valve f2,15- stripping gas surge tank, 16- stripping gas outlet tube a, 17- pressure
Regulating valve f1,18- cold blowing control valve f4,19- check-valves, 20- effusion meter, 21- Flow-rate adjustment valve group, 22- discharge pipe, 23- subtract
Pressure valve group, 24- air inlet pipe.
Specific embodiment
With reference to embodiment, the invention will be further described.
As seen from Figure 1, coke-stove gas psa hydrogen manufacturing pretreatment complex carries regenerating unit, including compression unit i section 2, in advance
Processing unit 3, compression unit ii, iii section 4 and carry hydrogen unit 5.Compression unit i section connects supply station (in figure by cog input pipe 1
Do not mark), carry hydrogen unit and deoxidation drying unit (in figure does not mark) is connected by outlet tube 6, carry hydrogen unit 5 and pretreatment unit 3
Between hot blow control valve f312 that arranges by stripping gas outlet tube a16, stripping gas surge tank 15, pressure-regulating valve f214 and connect
Form pretreatment unit 3 with cold blowing control valve f4 18, heater 11 and connecting tube 13 to prop up using proposing the regeneration of hydrogen unit 5 stripping gas
Road；Stripping gas outlet tube a is connected with carrying hydrogen unit 5, is connected with pressure-regulating valve f117, discharge pipe 22, forms pretreatment unit
Carry during regeneration gap and arrange recovery approach outside hydrogen unit desorbing；Pretreatment unit 3 is set stripping gas outlet tube b9 and is connected with discharge pipe 22.
Manage between the pressure-regulating valve f2 14 of stripping gas regeneration branch and hot blow control valve f3 12 cold blowing control valve f4 18 that connects
Threeway is set on road, the nitrogen regeneration branch road one end being provided with check-valves 19 is connected with threeway, and the other end is connected with source nitrogen, can be by nitrogen
Gas introduces pretreatment unit 3 and carries out blowback to regenerator, realizes pretreatment unit 3 double using carrying hydrogen unit 5 stripping gas and nitrogen
Carrier regeneration；The stripping gas outlet tube b of pretreatment unit 3 sets threeway, is connected with isolating valve, f58 and independent escape pipe 7 respectively, with
Isolating valve, f6 10 and discharge pipe 22 connect, and constitute the double outer row's recovery approach of stripping gas.
The air inlet pipe 24 of nitrogen regeneration branch road sets reducer unit 23, Flow-rate adjustment valve group 21, effusion meter 20 and non-return successively
Valve 19 connect pressure-regulating valve f214 to stripping gas branch road with and connect hot blow control valve f3 12, cold blowing control valve f4 18 it
Between threeway on, by air relief valve 23, the pressure of supplying nitrogen is controlled, Flow-rate adjustment valve group 21 and effusion meter 20 are to nitrogen
The input quantity of gas is controlled, and check-valves effectively prevent stripping gas from refunding nitrogen pipeline.
Isolating valve, f5 8 is set on independent escape pipe 7, one end connects threeway, the other end and the out-of-bounds phase of stripping gas outlet tube b9
Logical, nitrogen regeneration tail gas is discharged and out-of-bounds reclaims, remove the impurity in regenerator.
During work, it is first turned on isolating valve, f5, closes isolating valve, f6, pressure-regulating valve f2 changes Non-follow control, fully closed, tune
Put into automatically after seamless force regulating valve f1 control pressure；The stripping gas carrying hydrogen unit puies forward desorption by after the extraction of a point through the entrance of b point
Gas surge tank buffering, storage, then recovery outside battery limit (BL) is sent to through i point in a balanced way by pressure-regulating valve f1 adjustment；Set Flow-rate adjustment
Valve group flow puts into automatically, slowly opens reducer unit, adjusts secondary pressure, nitrogen then through reducer unit, Flow-rate adjustment valve group,
Effusion meter, check-valves, c, d, f3(f4), e, f supply pretreatment unit regenerator hot blow (cold blowing), nitrogen regeneration tail gas through g, h,
F5, independent escape pipe are discharged and are out-of-bounds reclaimed；If cog quality takes a turn for the better, pretreatment unit is used instead and is proposed the regeneration of hydrogen unit stripping gas, only needs
Reset f1, f2 control pressure, put into automatically, turn off reducer unit and can return to former flow process.
Claims (3)
1. coke-stove gas psa hydrogen manufacturing pretreatment complex carries regenerating unit, including compression unit i section (2), pretreatment unit (3), pressure
Contracting unit ii, iii section (4) and carry hydrogen unit (5), compression unit i section connects supply station by cog input pipe (1), carry hydrogen unit by
Outlet tube (6) connects deoxidation drying unit；Carry and arranging by stripping gas outlet tube a between hydrogen unit (5) and pretreatment unit (3)
(16), stripping gas surge tank (15), pressure-regulating valve f2 (14) hot blow control valve f3 (12) that connects and cold blowing control valve f4
(18), heater (11) and connecting tube (13) composition pretreatment unit (3) are using putting forward hydrogen unit (5) stripping gas regeneration branch；Solution
Air-breathing outlet tube a (16) is connected with carrying hydrogen unit (5), is connected with pressure-regulating valve f1 (17), discharge pipe (22), forms pretreatment
Carry during unit (3) regeneration gap and arrange recovery approach outside hydrogen unit (5) desorbing；Pretreatment unit sets stripping gas outlet tube b (9) and row
Outlet pipe connect it is characterised in that the described pressure-regulating valve f2 of stripping gas regeneration branch with and hot blow control valve f3, cold that connects
Blow and set threeway on the pipeline between control valve f4, the nitrogen regeneration branch road one end being provided with check-valves (19) is connected with threeway, another
End is connected with source nitrogen；The stripping gas outlet tube b of described pretreatment unit (3) sets threeway, respectively with isolating valve, f5 (8) and solely
Vertical escape pipe (7) connects, and is connected with isolating valve, f6 (10) and discharge pipe, constitutes the double outer row's recovery approach of stripping gas.
2. coke-stove gas psa hydrogen manufacturing pretreatment complex carries regenerating unit according to claim 1 is it is characterised in that described
The air inlet pipe (24) of nitrogen regeneration branch road sets reducer unit (23), Flow-rate adjustment valve group (21), effusion meter (20) and non-return successively
Valve (19) connect pressure-regulating valve f2 (14) to stripping gas branch road with and connect hot blow control valve f3 (12), cold blowing control valve f4
(18) in the threeway between.
3. coke-stove gas psa hydrogen manufacturing pretreatment complex carries regenerating unit according to claim 1 is it is characterised in that described
Isolating valve, f5 (8) is set on independent escape pipe (7), one end connects the threeway of stripping gas outlet tube b (9), the other end communicates with out-of-bounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054519.8A CN103754822B (en) | 2014-02-18 | 2014-02-18 | Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054519.8A CN103754822B (en) | 2014-02-18 | 2014-02-18 | Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103754822A CN103754822A (en) | 2014-04-30 |
| CN103754822B true CN103754822B (en) | 2017-01-25 |
Family
ID=50522191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054519.8A Active CN103754822B (en) | 2014-02-18 | 2014-02-18 | Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103754822B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928363A (en) * | 2019-05-05 | 2019-06-25 | 陕西东鑫垣化工有限责任公司 | A kind of hydrogen manufacturing adsorbent reactivation technique |
| CN114288853B (en) * | 2022-02-11 | 2024-05-14 | 重庆鲍斯净化设备科技有限公司 | Compressed air deoiling and purifying system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323799A (en) * | 2008-07-29 | 2008-12-17 | 四川天一科技股份有限公司 | Coke oven gas dry cleaning temperature swing adsorption process |
| CN203820447U (en) * | 2014-02-18 | 2014-09-10 | 马钢(集团)控股有限公司 | Device for regenerating binary carrier used for pretreatment in coke oven gas PSA (pressure swing adsorption) hydrogen production |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190103Y (en) * | 2008-03-18 | 2009-02-04 | 武汉钢铁(集团)公司 | Recoverable hydrogen production device |
| CN103112825B (en) * | 2013-02-27 | 2015-12-09 | 河南神马尼龙化工有限责任公司 | A kind of PSA hydrogen production process |
-
2014
- 2014-02-18 CN CN201410054519.8A patent/CN103754822B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323799A (en) * | 2008-07-29 | 2008-12-17 | 四川天一科技股份有限公司 | Coke oven gas dry cleaning temperature swing adsorption process |
| CN203820447U (en) * | 2014-02-18 | 2014-09-10 | 马钢(集团)控股有限公司 | Device for regenerating binary carrier used for pretreatment in coke oven gas PSA (pressure swing adsorption) hydrogen production |
Non-Patent Citations (1)
| Title |
|---|
| 韩荟瑾.焦炉煤气制氢工艺存在的问题和应对方案.《青岛理工大学学报》.2010,第31卷(第3期),108-122. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103754822A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107349746B (en) | Pressure swing adsorption method for linkage control of pressure change in cyclic operation | |
| CN101108295B (en) | Method of removing CO2 from switch gas by pressure swing adsorption with replacing and recycling step | |
| CN101978235A (en) | Method and apparatus for separating blast furnace gas | |
| CN102649544B (en) | Multifunctional nitrogen making machine | |
| CN105617817B (en) | For the device and method of acetate acid tail gas recycling CO | |
| CN103754822B (en) | Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation | |
| CN111545015A (en) | Intelligent start-stop pressure swing adsorption hydrogen production system and start-stop method thereof | |
| CN101700876B (en) | Nitrogen making method by pressure swing adsorption | |
| CN103896273A (en) | Method and system for recycling polycrystalline silicon reduction exhaust | |
| CN100588449C (en) | Multiple placing in turn interleaving flushing pressure variable adsorption technique | |
| CN214611527U (en) | Oxygen generation equipment capable of recycling unqualified oxygen | |
| CN102009963B (en) | High-purity nitrogen preparing method and device | |
| CN103537168B (en) | A kind of technique of pressure in tower when reducing pressure-swing absorber desorb | |
| CN105727687A (en) | Desorption gas recycling apparatus and desorption gas recycling method for pressure swing adsorption apparatus | |
| CN113583722A (en) | Improved coke oven coal gas hydrogen stripping TSA treatment device and process | |
| CN105347304A (en) | Double-high PSA (pressure swing adsorption) hydrogen purification method adopting pressure desorption | |
| CN101898069A (en) | Pressure swing adsorption pressured regeneration method for preparing methanol synthesis gas | |
| CN103868346B (en) | Oxygen-enriched nitrogen supply system for cupola furnace | |
| CN203820447U (en) | Device for regenerating binary carrier used for pretreatment in coke oven gas PSA (pressure swing adsorption) hydrogen production | |
| CN204372905U (en) | Tobacco workshop steam utilization condensation water recovery system | |
| CN212396288U (en) | Pressure-charging pre-compensation device for twenty thousand air separation device | |
| CN204873823U (en) | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus | |
| CN208727122U (en) | A kind of isomerization dewaxing emission-control equipment | |
| JP2014077065A (en) | City gas production process and production system | |
| CN204373181U (en) | The combined air conditioner condensing hot air furnace part of steam utilization condensation water recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |