CN107539967A - A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate - Google Patents
A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate Download PDFInfo
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- CN107539967A CN107539967A CN201710824037.XA CN201710824037A CN107539967A CN 107539967 A CN107539967 A CN 107539967A CN 201710824037 A CN201710824037 A CN 201710824037A CN 107539967 A CN107539967 A CN 107539967A
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- deamination
- valve
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- argon
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- 239000007789 gas Substances 0.000 title claims abstract description 64
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 60
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 30
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 28
- 238000000746 purification Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 16
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 16
- 230000009615 deamination Effects 0.000 claims abstract description 41
- 238000006481 deamination reaction Methods 0.000 claims abstract description 41
- 238000004821 distillation Methods 0.000 claims abstract description 34
- 238000001179 sorption measurement Methods 0.000 claims abstract description 32
- 238000005262 decarbonization Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 6
- 238000011069 regeneration method Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000006392 deoxygenation reaction Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000003463 adsorbent Substances 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The present invention proposes a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate, including deamination adsorption system, distillation system, surge tank, compressor, the first valve and the second valve, the air inlet of the deamination decarbonization system is connected to unstripped gas, and gas outlet is connected to distillation system by being vented main pipeline；The exhaust main pipeline is provided with separator tube branch road, the first valve, compressor are sequentially connected on the separator tube branch road, the compressor is connected to the inlet end of surge tank, and the outlet side of the surge tank is connected to the first valve and the separator tube branch road being vented between main pipeline by the pipeline of the valve of band second.Not only system entirety energy consumption is greatly reduced because that can stablize extraction liquid argon in the present invention, moreover it is possible to human users' intensity is greatly reduced, personnel do not have to laborious regulation distillation system when deamination adsorption system switches.
Description
Technical field
The present invention relates to a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate.
Background technology
Synthesis ammonia relief gas purification separation system will drop a hint through one after ammonia tank periodic off-gases and synthetic tower from chemical plant
Series removal of impurities and the low-temperature distillation process pairing with optimization are separated into valuable constituent in ammonia relief gas, obtain hydrogen, liquid
Methane, liquid argon, liquid nitrogen product.
Deamination decarbonization system is using three absorption switching flows (hereinafter referred to as deamination adsorption system), at first absorbing cylinder
In adsorbed state, second absorbing cylinder is in cold blowing state, and the 3rd absorbing cylinder is in thermal regeneration state.Needed for thermal regeneration
The source of the gas wanted blows cold air (blow cold renewal gas and come from fractionating column waste nitrogen gas) from upper cylinder, and so not only regeneration tolerance is few, and
Energy consumption is low.Gas after regeneration removes the ammonia parsed by washing ammonia system, avoids directly discharging air, weak aqua ammonia is sent
Return chemical plant chemical plant installations.Deamination decarbonization system also sets up pressure release recovery system, will be sent into after the pressure release gas supercharging in absorbing cylinder
Import, avoid wasting.Tail gas after deamination decarbonization system enters distillation system, and a series of low temperature are passed through in distillation system
Purification separation finally gives hydrogen, liquid methane, liquid argon, liquid nitrogen product.
Deamination adsorption system is one of nucleus equipment in synthesis ammonia relief gas purification separation system, and adsorbent therein is used
Ammonia, water, the carbon dioxide in ammonia relief gas are synthesized with absorption, and the methane in periodic off-gases is the beneficiating ingredient and accounting of system
It is higher, but adsorbent also has certain suction-operated to methane.When adsorption barrel adsorption saturation switch initial stage, due to adsorbent adsorb
Beneficiating ingredient methane in periodic off-gases so that gas flow reduces methane content therein and also reduced after absorption, flow and into
The change divided influences greatly on follow-up distillation system, and the fluctuation of the rapid reduction of flow destroys the distillation process of precision, first
The reduction of alkane content causes rectifier bottoms level fluctuation.And argon process is put forward in distillation system needs fine operation, rectifying
The fluctuation strong influence of journey puies forward argon process, and because deamination adsorption system needs frequent switching, the influence to distillation system is
Frequently, thus system have no way operating system carry argon, thus substantial amounts of rich argon gas is vented in vain, while can cause methane
In the increase of argon content, reduce the purity of methane.
In a word, because deamination adsorption system switches the methane adsorbed initial stage in periodic off-gases, distillation system is taken place frequently and caused
Influence so that system can not normal output liquid argon, also reduce the purity of methane.
The content of the invention
The present invention proposes a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate, solves deamination
The problem of distillation system is influenceed during adsorption system frequent switching.System entirety not only is greatly reduced because extraction liquid argon can be stablized
Energy consumption, moreover it is possible to human users' intensity is greatly reduced, personnel do not have to laborious regulation distillation system when deamination adsorption system switches.Separately
Outside, the research of this project can also improve the purity of product methane, so as to improve the market competitiveness of methane.
The technical proposal of the invention is realized in this way：
A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate, including deamination adsorption system 1, essence
System 3, surge tank 6, compressor 5, the first valve 7 and the second valve 8 are evaporated, the air inlet of the deamination decarbonization system 1 is connected to
Unstripped gas, gas outlet are connected to distillation system 3 by being vented main pipeline 2；The exhaust main pipeline 2 is provided with separator tube branch road
17, the first valve 7, compressor 5 are sequentially connected on the separator tube branch road 17, and the compressor 5 is connected to the air inlet of surge tank 6
End, the outlet side of the surge tank 6 are connected between the first valve 7 and exhaust main pipeline 2 by the pipeline of the second valve of band 8
Separator tube branch road 17.
Preferably, the pressure release gas outlet of the deamination decarbonization system 1 is also connected with pressure release gas recovery system 20, the pressure release gas
Recovery system 20 is connected to the air inlet of deamination decarbonization system 1.
Preferably, the deamination decarbonization system 1 is additionally provided with washing ammonia system, and the washing ammonia system passes through ammoniacal liquor pipeline 14
It is connected to ammoniacal liquor user 19.
Preferably, waste gas row's mouth of the deamination decarbonization system 1 is connected to public row by the first torch, scattered pipeline 13
Pipeline 16 is put, the common discharge duct 16 is connected to user's discharge tube end 18.
Preferably, the deamination adsorption system 1 is three adsorption structures, is followed successively by absorbing cylinder, blows cold absorbing cylinder and heating
Regenerative adsorption cylinder, the useless nitrogen outlet of the distillation system 3 are connected to deamination adsorption system 1 by blowing cold renewal feed channel 4 and are
Blow cold absorbing cylinder source of the gas.
Preferably, the liquid argon outlet of the distillation system 3 is connected to liquid argon deoxygenation system 9, the distillation system 3
Liquid hydrogen outlet is connected to H2Clarifier 10, the methane outlet of the distillation system 3 are connected to LNG storage tank 11, the LNG storage tank 11
It is connected to LNG charging systems 12.
Preferably, the waste gas outlet of the distillation system 3 is connected to common discharge pipe by the second torch, scattered pipeline 15
Road 16, the common discharge duct 16 are connected to user's discharge tube end 18.
Had the beneficial effect that caused by the present invention：Reduced for tolerance after switching, increase by a compressor and with a buffering
Tank, surge tank outlet are connected to deamination adsorption system by pipeline and exported.Suction port of compressor also connects the outlet of deamination adsorption system,
What usually compression was a small amount of works off one's feeling vent one's spleen into surge tank, maintains buffer tank pressure, after the switching of deamination adsorption system, stops compression
Machine simultaneously opens surge tank outlet valve supplement tolerance so that tolerance approaches with tolerance before switching.So deamination adsorption system exports
Tolerance fluctuation is reduced, and distillation system is influenceed to reduce；For adsorbent adsorbed methane problem, by the parsing of another absorbing cylinder
Gas is temporarily stored in surge tank by compressor, due to the resolution gas waste gas to be originally vented, wherein main component with
Gas componant after adsorption barrel is consistent, there is more methane, with this part pressure release gas blowback absorbing cylinder before adsorption barrel is pressed, allows
The absorption of adsorbent saturation plus watt, adsorbed methane amount greatly reduces after the switching of such adsorption barrel, and exit gas methane content is influenceed
Substantially reduce.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structure principle chart of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as shown in Figure 1, including deamination are inhaled
Attached system 1, distillation system 3, surge tank 6, compressor 5, the first valve 7 and the second valve 8, the deamination decarbonization system 1 enter
Gas port is connected to unstripped gas, and gas outlet is connected to distillation system 3 by being vented main pipeline 2；The exhaust main pipeline 2 is provided with slow
Washing pipe branch road 17, the first valve 7, compressor 5 is sequentially connected on the separator tube branch road 17, the compressor 5 is connected to buffering
The inlet end of tank 6, the outlet side of the surge tank 6 are connected to the first valve 7 by the pipeline of the second valve of band 8 and are responsible for exhaust
Separator tube branch road 17 between road 2.
The pressure release gas outlet of deamination decarbonization system 1 is also connected with pressure release gas recovery system 20, the pressure release gas in the present embodiment
Recovery system 20 is connected to the air inlet of deamination decarbonization system 1；The deamination decarbonization system 1 is additionally provided with washing ammonia system, described
Washing ammonia system is connected to ammoniacal liquor user 19 by ammoniacal liquor pipeline 14；Waste gas row's mouth of the deamination decarbonization system 1 passes through first
Torch, scattered pipeline 13 are connected to common discharge duct 16, and the common discharge duct 16 is connected to user's discharge tube end 18；
The deamination adsorption system 1 is three adsorption structures, is followed successively by absorbing cylinder, blows cold absorbing cylinder and thermal regeneration absorbing cylinder, described
It is to blow cold absorbing cylinder source of the gas that the useless nitrogen outlet of distillation system 3, which is connected to deamination adsorption system 1 by blowing cold renewal feed channel 4,；
The liquid argon outlet of the distillation system 3 is connected to liquid argon deoxygenation system 9, and the liquid hydrogen outlet of the distillation system 3 is connected to
H2Clarifier 10, the methane outlet of the distillation system 3 are connected to LNG storage tank 11, and the LNG storage tank 11 is connected to LNG and filled
System 12；The waste gas outlet of the distillation system 3 is connected to common discharge duct 16, institute by the second torch, scattered pipeline 15
State common discharge duct 16 and be connected to user's discharge tube end 18.
Compressor 5 and surge tank 6 be set in the present invention after the three towers absorption of deamination adsorption system 1, the entrance of compressor 2 and
Surge tank 6 exports the exhaust main pipeline 2 after being all connected to the absorption of three towers, when the absorption of three towers does not switch, is slowly compressed using compressor 5
Gas in a small amount of exhaust main pipeline 2 enters surge tank 6；Compressor 5 is stopped after the absorption switching of three towers, by gas in surge tank 6
Body is added in three towers absorption final vacuum main pipeline 2 so that gas flow tends towards stability.After the absorption switching of three towers, stop
Compressor simultaneously opens surge tank outlet valve supplement tolerance so that tolerance approaches with tolerance before switching, greatly reduces the suction of three towers
Attached flowed fluctuation switches the influence to distillation system 3.
Resolution gas is adsorbed by the blowback of surge tank 6 to absorbing cylinder using three towers simultaneously, and resolution gas to be originally vented useless
Gas, wherein main component are consistent with the gas componant after adsorption barrel, there is more methane, are let out before adsorption barrel is pressed with this part
Calm the anger blowback absorbing cylinder, allow the absorption of adsorbent saturation plus watt, adsorbed methane amount greatly reduces after such adsorption barrel switching, to outlet
Gases methane content influences to substantially reduce.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (7)
1. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate, it is characterised in that inhaled including deamination
Attached system (1), distillation system (3), surge tank (6), compressor (5), the first valve (7) and the second valve (8), the deamination take off
The air inlet of carbon system (1) is connected to unstripped gas, and gas outlet is connected to distillation system (3) by being vented main pipeline (2)；The row
Gas main pipeline (2) is provided with separator tube branch road (17), and the first valve (7), compression are sequentially connected on the separator tube branch road (17)
Machine (5), the compressor (5) are connected to the inlet end of surge tank (6), and the outlet side of the surge tank (6) passes through the valve of band second
The pipeline of door (8) is connected to the first valve (7) and the separator tube branch road (17) being vented between main pipeline (2).
2. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as claimed in claim 1, it is special
Sign is that the pressure release gas outlet of the deamination decarbonization system (1) is also connected with pressure release gas recovery system (20), the pressure release gas recovery
System (20) is connected to the air inlet of deamination decarbonization system (1).
3. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as claimed in claim 1, it is special
Sign is that the deamination decarbonization system (1) is additionally provided with washing ammonia system, and the washing ammonia system is connected by ammoniacal liquor pipeline (14)
To ammoniacal liquor user (19).
4. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as claimed in claim 1, it is special
Sign is that waste gas row's mouth of the deamination decarbonization system (1) is connected to common discharge pipe by the first torch, scattered pipeline (13)
Road (16), the common discharge duct (16) are connected to user's discharge tube end (18).
5. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as claimed in claim 1, it is special
Sign is that the deamination adsorption system (1) is three adsorption structures, is followed successively by absorbing cylinder, blows cold absorbing cylinder and thermal regeneration suction
Attached cylinder, the useless nitrogen outlet of the distillation system (3) are connected to deamination adsorption system (1) by blowing cold renewal feed channel (4) and are
Blow cold absorbing cylinder source of the gas.
6. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as claimed in claim 1, it is special
Sign is that the liquid argon outlet of the distillation system (3) is connected to liquid argon deoxygenation system (9), the liquid of the distillation system (3)
Hydrogen outlet is connected to H2Clarifier (10), the methane outlet of the distillation system (3) are connected to LNG storage tank (11), the LNG storages
Tank (11) is connected to LNG charging systems (12).
7. a kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate as claimed in claim 1, it is special
Sign is that the waste gas outlet of the distillation system (3) is connected to common discharge duct by the second torch, scattered pipeline (15)
(16), the common discharge duct (16) is connected to user's discharge tube end (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710824037.XA CN107539967B (en) | 2017-09-13 | 2017-09-13 | System for improving purification and separation stability and argon extraction rate of synthesis ammonia purge gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710824037.XA CN107539967B (en) | 2017-09-13 | 2017-09-13 | System for improving purification and separation stability and argon extraction rate of synthesis ammonia purge gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107539967A true CN107539967A (en) | 2018-01-05 |
| CN107539967B CN107539967B (en) | 2023-11-03 |
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ID=60964163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710824037.XA Active CN107539967B (en) | 2017-09-13 | 2017-09-13 | System for improving purification and separation stability and argon extraction rate of synthesis ammonia purge gas |
Country Status (1)
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| CN (1) | CN107539967B (en) |
Citations (6)
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|---|---|---|---|---|
| CN101737309A (en) * | 2009-11-26 | 2010-06-16 | 河南心连心化肥有限公司 | Device and method for stabilizing pressure of decarburizing pressure swing adsorption vacuum pump |
| CN103438662A (en) * | 2013-08-21 | 2013-12-11 | 河南心连心深冷能源股份有限公司 | Device and technological method for LNG production through recycling synthesis ammonia tail gas |
| CN104132505A (en) * | 2014-08-15 | 2014-11-05 | 苏州市兴鲁空分设备科技发展有限公司 | Synthesis ammonia waste gas recycling and comprehensive utilizing device |
| CN204543920U (en) * | 2015-03-24 | 2015-08-12 | 湖北和远气体股份有限公司 | A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system |
| CN106943837A (en) * | 2017-04-19 | 2017-07-14 | 苏州市兴鲁空分设备科技发展有限公司 | Decarburization deamination system |
| CN207404842U (en) * | 2017-09-13 | 2018-05-25 | 湖北和远气体股份有限公司 | A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate |
-
2017
- 2017-09-13 CN CN201710824037.XA patent/CN107539967B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737309A (en) * | 2009-11-26 | 2010-06-16 | 河南心连心化肥有限公司 | Device and method for stabilizing pressure of decarburizing pressure swing adsorption vacuum pump |
| CN103438662A (en) * | 2013-08-21 | 2013-12-11 | 河南心连心深冷能源股份有限公司 | Device and technological method for LNG production through recycling synthesis ammonia tail gas |
| CN104132505A (en) * | 2014-08-15 | 2014-11-05 | 苏州市兴鲁空分设备科技发展有限公司 | Synthesis ammonia waste gas recycling and comprehensive utilizing device |
| CN204543920U (en) * | 2015-03-24 | 2015-08-12 | 湖北和远气体股份有限公司 | A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system |
| CN106943837A (en) * | 2017-04-19 | 2017-07-14 | 苏州市兴鲁空分设备科技发展有限公司 | Decarburization deamination system |
| CN207404842U (en) * | 2017-09-13 | 2018-05-25 | 湖北和远气体股份有限公司 | A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate |
Non-Patent Citations (1)
| Title |
|---|
| 李兰: "《现代有机化工实验和开发技术》", 科学普及出版社, pages: 250 * |
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