CN103754822A - 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
- CN103754822A CN103754822A CN201410054519.8A CN201410054519A CN103754822A CN 103754822 A CN103754822 A CN 103754822A CN 201410054519 A CN201410054519 A CN 201410054519A CN 103754822 A CN103754822 A CN 103754822A
- Authority
- CN
- China
- Prior art keywords
- unit
- stripping gas
- coke
- valve
- regeneration
- 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.)
- Granted
Links
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 that coke-oven gas is refining, coke-oven gas PSA hydrogen manufacturing, relate in particular to coke-oven gas PSA device for producing hydrogen.
Background technology
Current, coke-oven gas (Coke-Oven Gas is called for short COG) its pretreatment unit regenerating unit of PSA device for producing hydrogen connects to form by putting forward hydrogen unit stripping gas branch road, pretreatment unit and pre-treatment regeneration branch.Carry hydrogen unit stripping gas output tube a and by stripping gas surge tank, pressure regulator valve F2, pipe connecting, hot blow control valve F3, cold blowing control valve F4, well heater, be connected to the ingress of pretreatment unit, will carry hydrogen unit stripping gas input pretreatment unit and make regeneration source of the gas; Carry hydrogen unit stripping gas output tube a respectively with carry hydrogen unit, stripping gas surge tank, pressure regulator valve F1 and be connected with vent pipe, while being pretreatment unit regeneration gap (rise, decompression), carry hydrogen unit stripping gas and arrange recovery approach outward.Pretreatment unit is established stripping gas output tube b and is connected with vent pipe.Take from the stripping gas of carrying hydrogen unit, through pre-treatment regeneration branch, pretreatment unit regenerator column is carried out to blowback, removing is attached to the impurity composition on pretreatment unit regenerator column sorbent material, then is discharged out-of-bounds and reclaimed by stripping gas output tube b, the vent pipe of pretreatment unit.During hot blow, stripping gas is drawn by carrying hydrogen unit, enter stripping gas surge tank, pressure regulator valve F2, pipe connecting, hot blow control valve F3 and well heater, from top to pretreatment unit regenerator column, carry out blowback, and then discharge out-of-bounds and reclaim by stripping gas output tube b, vent pipe.During cold blowing, stripping gas is drawn by carrying hydrogen unit, enters stripping gas surge tank, pressure regulator valve F2, pipe connecting and cold blowing control valve F4, from top to pretreatment unit regenerator column, carries out blowback, reduce regenerator column adsorbent temperature, and then discharge out-of-bounds and reclaim by stripping gas output tube b, vent pipe.The defect existing is in PSA device for producing hydrogen production process, because the COG impurity composition from out-of-bounds exceeds standard, cause pretreatment unit bed to penetrate that (sorbent material absorption is saturated, defective COG is through adsorption bed), after the compressed unit II of COG that impurity exceeds standard, the compression of III section, the foreign matter content rising several times of unit volume, saturated separating out, easily cause cooling core, blow-off pipe, the safety valve root pipe of compressed element II, III section, and inlet filter, pipeline, the obstruction of pressure unit conduit of carrying hydrogen unit, entering the COG impurity of carrying hydrogen unit exceeds standard, its stripping gas is also also enrichment impurity of pretreatment unit regeneration source of the gas, make the regeneration of pretreatment unit regenerator column simultaneously also at absorption impurity, reduce this tower and proceeded to the loading capacity after absorption, receive the ability of COG impurity more weak, so enter vicious cycle, until pretreatment unit does not have cleaning action, more seriously permanent damage is put forward hydrogen unit costliness, design and the sorbent material (15 year) of device with the life-span, shorten its work-ing life, increase replacement charge or reduce raw hydrogen purity, production capacity, affect continuous production, threaten safety in production.
Summary of the invention
The defect existing in order to overcome prior art, the object of this invention is to provide the two carrier regenerating units of a kind of coke-oven gas PSA hydrogen manufacturing pre-treatment, optimizing hydrogen production process controls, improve the adsorptive power of pretreatment unit, reduce and enter the COG foreign matter content of carrying hydrogen unit, improve pretreatment unit regeneration effect, avoiding carrying hydrogen unit sorbent material permanent damage even scraps, stable productivity and raw hydrogen purity, reduce production costs, and guarantees to produce to carry out smoothly.
Coke-oven gas PSA device for producing hydrogen, comprises compressed element I section, pretreatment unit, compressed element II, III section, carries hydrogen unit and deoxidation drying unit, and compressed element I section connects supply station by COG input tube, carries hydrogen unit and connects deoxidation drying unit by output tube.Carry between hydrogen unit and pretreatment unit arranging and by stripping gas output tube a, stripping gas surge tank, pressure regulator valve F2 the hot blow control valve F3 connecing and cold blowing control valve F4, well heater and pipe connecting, form pretreatment unit utilization and put forward hydrogen unit stripping gas regeneration branch; Stripping gas output tube a with carry hydrogen unit and be connected, be connected with pressure regulator valve F1, vent pipe, form pretreatment unit regeneration gap Shi Tiqing unit desorb and arrange passage outward; Pretreatment unit is established stripping gas output tube b and is connected with vent pipe, be characterized in pressure regulator valve F2 and and the hot blow control valve F3 that connects, pipeline between cold blowing control valve F4 on establish threeway, the nitrogen regeneration branch road one end that is provided with vacuum breaker is connected with threeway, the other end is connected with source nitrogen, nitrogen is introduced to pretreatment unit regenerator column is carried out to blowback, realize pretreatment unit utilization and put forward hydrogen unit stripping gas and the two carrier manipulation of regeneration of nitrogen; The stripping gas output tube b of described pretreatment unit establishes threeway, is connected respectively with shutdown valve F5 with newly-built independent escape pipe, is connected with vent pipe with shutdown valve F6, forms the two outer row's recovery approaches of pretreatment unit stripping gas.
The present invention further improves, the inlet pipe of described nitrogen regeneration branch road establish successively reducing valve group, flow control valve group, under meter and vacuum breaker be connected to stripping gas branch road pressure regulator valve F2 and and the hot blow control valve F3 that connects, the threeway between cold blowing control valve F4 on, by reducing valve, the pressure of supplying nitrogen is controlled, flow control valve group and under meter are controlled the input of nitrogen, and vacuum breaker effectively prevents that stripping gas from refunding nitrogen pipeline.
The present invention further improves, and on described independent escape pipe, establishes shutdown valve F5, and one end connects the threeway of stripping gas output tube b, the other end with out-of-bounds communicate, the tail gas during by nitrogen regeneration is discharged out-of-bounds and is reclaimed, the impurity in removing regenerator column.
During work, first open shutdown valve F5, close shutdown valve F6, pressure regulator valve F2 changes manual control, complete shut-down, after adjustment pressure regulator valve F1 control pressure, drops into automatically; Carry the stripping gas of hydrogen unit and draw by B point and enter and propose the air-breathing surge tank buffering of hydrogenolysis, storage by A point, then adjust balanced being sent to outside battery limit (BL) and reclaiming through I point by pressure regulator valve F1; Setting nitrogen flow variable valve group flow drops into automatically, slowly open reducing valve group, adjust secondary pressure, nitrogen is through reducing valve group, flow control valve group, under meter, vacuum breaker, C, D, F3(F4), E, F be for the regenerator column hot blow (cold blowing) of pretreatment unit, nitrogen regeneration tail gas is discharged out-of-bounds and is reclaimed through G, H, F5, independent escape pipe; If COG quality takes a turn for the better, pretreatment unit is used instead and is proposed the stripping gas regeneration of hydrogen unit, only need reset F1, F2 control pressure, drops into automatically, then closes nitrogen reducing valve group and can get back to former flow process.
Compared with prior art, advantage is novel, simple and reasonable for structure; Adopt nitrogen as regeneration source of the gas, cost is low, security is good, and pretreatment unit sorbent material can not produce local spontaneous combustion by Yin Gaowen under hot blow state, and the nitrogen that cleanliness factor is high can carry out pulse cleaning to regenerator column effectively, improve the adsorptive power of pretreatment unit, reduce and enter the COG foreign matter content of carrying hydrogen unit, avoid carrying hydrogen unit sorbent material permanent damage and even scrap, stable productivity and raw hydrogen purity, reduce production costs, guarantee to produce and carry out smoothly; The two carrier passages of pre-treatment regenerating unit can, according to producing actual convenient switching, not interfere with each other during production; The tail gas producing during pretreatment unit nitrogen regeneration all reclaims, environmentally safe.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the coke-oven gas PSA device for producing hydrogen general flow chart with nitrogen regeneration branch road.
In figure: 1-COG input tube, 2-compressed element I section, 3-pretreatment unit, 4-compressed element II, III section, 5-carries hydrogen unit, 6-output tube, 7-escape pipe, 8-shutdown valve F5, 9-stripping gas output tube b, 10-shutdown valve F6, 11-well heater, 12-hot blow control valve F3, 13-pipe connecting, 14-pressure regulator valve F2, 15-stripping gas surge tank, 16-stripping gas output tube a, 17-pressure regulator valve F1, 18-cold blowing control valve F4, 19-vacuum breaker, 20-under meter, 21-flow control valve group, 22-vent pipe, 23-reducing valve group, 24-inlet pipe.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
As seen from Figure 1, the two carrier regenerating units of coke-oven gas PSA hydrogen manufacturing pre-treatment, comprise compressed element I section 2, pretreatment unit 3, compressed element II, III section 4 and carry hydrogen unit 5.Compressed element I section connects supply station (not marking in figure) by COG input tube 1, carry hydrogen unit and connect deoxidation drying units (not marking in figure) by output tube 6, carry arranging between hydrogen unit 5 and pretreatment unit 3 and by stripping gas output tube a16, stripping gas surge tank 15, pressure regulator valve F214 the hot blow control valve F312 connecing and cold blowing control valve F4 18, well heater 11 and pipe connecting 13, forms pretreatment unit 3 utilizations and put forward hydrogen unit 5 stripping gas regeneration branch; Stripping gas output tube a with carry hydrogen unit 5 and be connected, be connected with pressure regulator valve F117, vent pipe 22, form pretreatment unit regeneration gap Shi Tiqing unit desorb and arrange recovery approach outward; Pretreatment unit 3 is established stripping gas output tube b9 and is connected with vent pipe 22.Between the pressure regulator valve F2 14 of stripping gas regeneration branch and hot blow control valve F3 12 the cold blowing control valve F4 18 that connects, on pipeline, establish threeway, the nitrogen regeneration branch road one end that is provided with vacuum breaker 19 is connected with threeway, the other end is connected with source nitrogen, nitrogen can be introduced to 3 pairs of regenerator columns of pretreatment unit and carry out blowback, realize pretreatment unit 3 utilizations and propose hydrogen unit 5 stripping gass and the two carriers regeneration of nitrogen; The stripping gas output tube b of pretreatment unit 3 establishes threeway, is connected respectively with shutdown valve F58 with independent escape pipe 7, is connected with vent pipe 22 with shutdown valve F6 10, forms the two outer row's recovery approaches of stripping gas.
The inlet pipe 24 of nitrogen regeneration branch road establish successively reducing valve group 23, flow control valve group 21, under meter 20 and vacuum breaker 19 be connected to stripping gas branch road pressure regulator valve F214 and and the hot blow control valve F3 12 that connects, the threeway between cold blowing control valve F4 18 on, pressure by 23 pairs of supplying nitrogens of reducing valve is controlled, the input of flow control valve group 21 and 20 pairs of nitrogen of under meter is controlled, and vacuum breaker effectively prevents that stripping gas from refunding nitrogen pipeline.
On independent escape pipe 7, establish shutdown valve F5 8, one end connects the threeway of stripping gas output tube b9, the other end with out-of-bounds communicate, nitrogen regeneration tail gas is discharged out-of-bounds and is reclaimed, the impurity in removing regenerator column.
During work, first open shutdown valve F5, close shutdown valve F6, pressure regulator valve F2 changes manual control, complete shut-down, after adjustment pressure regulator valve F1 control pressure, drops into automatically; Carry the stripping gas of hydrogen unit and draw by B point and enter and propose the air-breathing surge tank buffering of hydrogenolysis, storage by A point, then adjust balanced being sent to outside battery limit (BL) and reclaiming through I point by pressure regulator valve F1; Setting flow control valve group flow drops into automatically, slowly open reducing valve group, adjust secondary pressure, nitrogen is through reducing valve group, flow control valve group, under meter, vacuum breaker, C, D, F3(F4), E, F be for the regenerator column hot blow (cold blowing) of pretreatment unit, nitrogen regeneration tail gas is discharged out-of-bounds and is reclaimed through G, H, F5, independent escape pipe; If COG quality takes a turn for the better, pretreatment unit is used instead and is proposed the stripping gas regeneration of hydrogen unit, only need reset F1, F2 control pressure, drops into automatically, then closes reducing valve group and can get back to former flow process.
Claims (3)
1. the two carrier regenerating units of coke-oven gas PSA hydrogen manufacturing pre-treatment, comprise compressed element I section (2), pretreatment unit (3), compressed element II, III section (4) and carry hydrogen unit (5).Compressed element I section connects supply station by COG input tube (1), carries hydrogen unit and connects deoxidation drying unit by output tube (6); Carry between hydrogen unit (5) and pretreatment unit (3) and to arrange by stripping gas output tube a(16), stripping gas surge tank (15), pressure regulator valve F2(14) and the hot blow control valve F3(12 that connects) and cold blowing control valve F4(18), well heater (11) and pipe connecting (13) form pretreatment unit (3) utilization and put forward hydrogen unit (5) stripping gas regeneration branch; Stripping gas output tube a(16) with carry hydrogen unit (5) and be connected, with pressure regulator valve F1(17), vent pipe (22) is connected, form Shi Tiqing unit, pre-treatment (3) regeneration unit gap (5) desorb and arrange recovery approach outward; Pretreatment unit is established stripping gas output tube b(9) be connected with vent pipe, it is characterized in that described stripping gas regeneration branch pressure regulator valve F2 and and the hot blow control valve F3 that connects, the pipeline between cold blowing control valve F4 on establish threeway, the nitrogen regeneration branch road one end that is provided with vacuum breaker (19) is connected with threeway, and the other end is connected with source nitrogen; The stripping gas output tube b of described pretreatment unit (3) establishes threeway, respectively with shutdown valve F5(8) be connected with independent escape pipe (7), with shutdown valve F6(10) be connected with vent pipe, form the two outer row's recovery approaches of stripping gas.
2. the two carrier regenerating units of coke-oven gas PSA hydrogen manufacturing pre-treatment according to claim 1, is characterized in that the inlet pipe (24) of described nitrogen regeneration branch road is established the pressure regulator valve F2(14 that reducing valve group (23), flow control valve group (21), under meter (20) and vacuum breaker (19) are connected to stripping gas branch road successively) and and the hot blow control valve F3(12 that connects), cold blowing control valve F4(18) between threeway on.
3. the two carrier regenerating units of coke-oven gas PSA hydrogen manufacturing pre-treatment according to claim 1, is characterized in that establishing shutdown valve F5(8 on described independent escape pipe (7)), one end connects stripping gas output tube b(9) threeway, the other end with out-of-bounds communicate.
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 true CN103754822A (en) | 2014-04-30 |
| CN103754822B 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) |
Cited By (3)
| 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 |
| CN114288853A (en) * | 2022-02-11 | 2022-04-08 | 重庆鲍斯净化设备科技有限公司 | Compressed air oil removal and purification system |
| 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 |
|---|---|---|---|---|
| CN201190103Y (en) * | 2008-03-18 | 2009-02-04 | 武汉钢铁(集团)公司 | Recoverable hydrogen production device |
| CN103112825A (en) * | 2013-02-27 | 2013-05-22 | 河南神马尼龙化工有限责任公司 | PSA (Pressure Swing Adsorption) hydrogen production method |
Family Cites Families (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 |
-
2014
- 2014-02-18 CN CN201410054519.8A patent/CN103754822B/en active Active
Patent Citations (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 |
| CN103112825A (en) * | 2013-02-27 | 2013-05-22 | 河南神马尼龙化工有限责任公司 | PSA (Pressure Swing Adsorption) hydrogen production method |
Cited By (3)
| 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 |
| CN114288853A (en) * | 2022-02-11 | 2022-04-08 | 重庆鲍斯净化设备科技有限公司 | Compressed air oil removal and purification system |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103754822B (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104501130A (en) | Steam-utilizing condensate water recycling system for cut tobacco production workshop of cigarette factory | |
| CN102020246B (en) | Hydrogen purified recovery system and process method | |
| CN203820447U (en) | Device for regenerating binary carrier used for pretreatment in coke oven gas PSA (pressure swing adsorption) hydrogen production | |
| CN104163404B (en) | Recoverying and utilizing method and the device of dirty oxide gas is regenerated in nitrogen purification process | |
| CN103754822A (en) | Pretreatment double-carrier regeneration device for coke-oven gas PSA (Pressure Swing Adsorption) hydrogen generation | |
| 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 | |
| CN103537168B (en) | A kind of technique of pressure in tower when reducing pressure-swing absorber desorb | |
| CN210855275U (en) | High-purity nitrogen purification device | |
| CN104190200A (en) | Ammonia synthesis waste gas recycling device | |
| CN204372905U (en) | Tobacco workshop steam utilization condensation water recovery system | |
| CN203295518U (en) | Blast-furnace gas centralized processing system and iron making blast furnace with same | |
| CN204325291U (en) | Coke-oven gas hot method precision processing device | |
| CN209428126U (en) | A kind of hydrogen recovery system | |
| CN204873823U (en) | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus | |
| CN210656165U (en) | Helium circulating and purifying system | |
| CN204372904U (en) | The boiler deironing water supply part of steam utilization condensation water recovery system | |
| CN208727122U (en) | A kind of isomerization dewaxing emission-control equipment | |
| CN201793646U (en) | Quenching gas recycling system | |
| CN219384784U (en) | Production device for co-producing high-purity hydrogen, power hydrogen and industrial hydrogen by using chlor-alkali byproduct hydrogen | |
| CN202803074U (en) | Membrane separation nitrogen making machine | |
| CN110526223A (en) | A kind of high pure nitrogen purifying technique and device | |
| CN205024191U (en) | Recovery unit of unqualified gas of LNG mill operation | |
| CN202569896U (en) | Molecular sieve purifying system | |
| CN104154705A (en) | Separating device for synthesis ammonia waste gas |
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 |