CN107188139A - A kind of nitrogen monoxide generating device and preparation method - Google Patents
A kind of nitrogen monoxide generating device and preparation method Download PDFInfo
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- CN107188139A CN107188139A CN201710585778.7A CN201710585778A CN107188139A CN 107188139 A CN107188139 A CN 107188139A CN 201710585778 A CN201710585778 A CN 201710585778A CN 107188139 A CN107188139 A CN 107188139A
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- catalyst
- ammonia
- nitric oxide
- generating device
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 239000003054 catalyst Substances 0.000 claims abstract description 39
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims 1
- 229910000423 chromium oxide Inorganic materials 0.000 claims 1
- 150000003658 tungsten compounds Chemical class 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009533 lab test Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
- C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
- C01B21/28—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
- C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
- C01B21/265—Preparation by catalytic or non-catalytic oxidation of ammonia characterised by the catalyst
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a kind of nitrogen monoxide generating device, nitric oxide is prepared with high selectivity using ammonia and compressed air as raw material.Described device includes the reaction tube equipped with catalyst, and the reaction tube inlet is connected with the flow controller of ammonia and air, exports and is connected with the pipeline with heat tracing, and can be heated by external temperature automatically controlled heating furnace.The invention further relates to the nitric oxide gas preparation method of this device, the volume flow ratio of air and ammonia is 5:1~15:1, reaction pressure is normal pressure, and reaction temperature is 300 ~ 800 DEG C, and export pipeline heat tracing temperature is 150 ~ 300 DEG C.The simple in construction of apparatus of the present invention, stability are good, flow adjustment range is wide, power consumption is low, are particularly suitable for middle-size and small-size laboratory test device and use.
Description
Technical field
The invention belongs to chemical industry and environmental technology field, it is related to a kind of nitrogen monoxide generating device and preparation method.More
Body, it is related to a kind of nitrogen monoxide generating device and preparation method for field test equipments such as chemical industry, environmental protection.
Background technology
Nitric oxide（NO）It is a kind of virose colourless gas, it is one of most important atmosphere pollution, while
It is a kind of important messenger molecule in organism.In fields such as chemical industry, environmental protection, biologic medical, agriculturals, nitric oxide gas leads to
It is usually used in reaction test or related application.Particularly in field of Environment Protection, when testing denitrating catalyst reactivity worth, nitric oxide
Gas is used to simulate required reaction flue gas condition.
At present, nitric oxide is generally provided by gas bomb, or is prepared using the method for spraying into ammonia in combustion furnace.
Because steel cylinder dress nitric oxide price is higher, and charge pressure is typically not greater than 3.5 MPa, and every bottle of steel cylinder is only capable of providing about
1400L marks condition gas, and testing cost can be greatly improved in large usage quantity.The method burnt using ammonia can effectively reduce cost,
But oxygen content can not be controlled accurately during due to burning, and the nitric oxide amount generated is generally not sufficiently stable, is difficult to accurate adjustment, choosing
Selecting property can not also ensure.
Document CN101284656A discloses a kind of using ammonia and the nitric oxide production device of air catalytic oxidation generation, is provided with
Diffusion Mixer, is connected with Liquid Ammonia Treatment unit, air conditioner unit and converter for ammonia oxidation respectively.Liquid Ammonia Treatment unit is by successively
Ammonia tank, water-bath evaporator and the gaseous mass measurement controller A compositions of connection；What air conditioner unit was connect by being sequentially connected
Air compressor machine, sack cleaner, gaseous mass measurement controller B and electric heater are constituted.Gaseous mass measurement controller A and electricity
Heater is connected with Diffusion Mixer respectively.The mixed gas that ammonia is constituted with air in converter for ammonia oxidation passes through Hydrogen Ignition
After device igniting, occur combustion reaction under 820 ~ 840 DEG C, platinum-rhodium-palladium catalyst effect, generate nitric oxide gas.Document
CN201834764U instead of air pipe line using oxygen, nitrogen and vapor pipeline, and the portion in air is instead of with water vapour
Divide nitrogen, further increase obtained nitric oxide gas concentration.But both devices are a large amount of industrial productions and set
Meter, equipment and flow are complicated, the temperature needed for converter for ammonia oxidation more than 800 DEG C, also can not accurate adjustment nitric oxide production,
It is not used to middle-size and small-size test device.
The content of the invention
In order to overcome that existing nitrogen monoxide generating device reaction temperature is high, stability is poor, it is difficult to accurate adjustment, is not used to
The deficiency of middle-size and small-size test device, the invention provides a kind of novel nitric oxide generating means and preparation method.The device knot
Structure is simple, stability is good, flow adjustment range is wide, reaction temperature is low, is particularly suitable for middle-size and small-size laboratory test device and uses.
The nitrogen monoxide generating device of the present invention is using ammonia and compressed air as unstripped gas, including the reaction equipped with catalyst
Pipe, the reaction tube inlet is connected with the flow controller of ammonia and air, is exported and is connected with the pipeline with heat tracing, described anti-
Should manage by it is external can temperature automatically controlled heating furnace heated.
Heating furnace used in the nitrogen monoxide generating device of the present invention is electric furnace or infrared heating furnace.Infrared heating furnace
There is heating rapid, it is homogeneous heating, easily controllable, be preferred scheme.The reaction tube of the present apparatus is stainless steel or quartz
Material, preferably crystal reaction tube, can high temperature resistant, without metallic element to react it is noiseless, catalyst condition can be checked at any time.This
Device is reacted at ambient pressure, and reaction tube can be connected by high temperature resistant Graphite pad with air inlet and gas outlet.Using stainless steel
, should be using electric furnace heating during reaction tube.Tube inner diameter is relevant with required gas flow and loaded catalyst, generally exists
Between 15 ~ 60 mm.
Ammonia catalytic is nitric oxide using effective catalyst by the nitrogen monoxide generating device of the present invention, with reaction
Temperature is low, without the characteristics of ammonia is remaining, nitric oxide is selectively high.Described catalyst is by loaded catalyst A and optionally urges
Agent B is constituted.Catalyst A is located in the middle part of reaction tube, for the catalytic oxidation of ammonia, the oxide of selection iron and iron, oxidation
One or more of mixtures in chromium, cobalt oxide, manganese oxide, load type platinum, support type rhodium, load type palladium.The iron and iron
Oxide be Fe, FeO, Fe2O3、Fe3O4Middle one or more of mixture.Loaded catalyst in the catalyst A
Active component is the one or more among platinum, rhodium, palladium, and carrier is selected from activated carbon, silica, aluminum oxide, titanium oxide, molecule
One or more of mixtures in sieve, diatomite, wherein aluminum oxide, molecular sieve, titanium oxide is the most commonly used.Catalyst A can be
Graininess（Including bead, tooth ball, bar shaped, amorphous pellets）Or it is block（Including cellular, porous block）.Optional catalyst
B is located at reaction tube bottom, for further improving nitric oxide production selectivity.Catalyst B is usually graininess, cellular, silk
Shape or block porous metal simple-substance, one or more of mixtures in iron, copper, silver, nickel, zinc, molybdenum, tungsten.Catalyst
It is fixed on by built-in fixed support inside reaction tube.
The nitrogen monoxide generating device of the present invention is provided with ammonia, two admission lines of air, admission line by valve and
Flow controller is connected with reaction tube.Ammonia is provided by steel cylinder, and the position before reaction tube is entered should install thermal flame safeguard.
Air can be provided by compressor, and compressor outlet needs to install de-watering apparatus.
Ammonia and nitric oxide are toxic gas, therefore the present apparatus should be installed on the region provided with independent ventilation facility.
In conditions permit, the present apparatus should also set pressure sensor and gas sensor, and be controlled with inlet duct, heater interlocking
System, reaction pressure is too high, nitric oxide or is automatically stopped air inlet and heating during ammonia leakage, ensures operating personnel's safety.
The conversion ratio and nitric oxide production selectivity of the ratio regular meeting influence ammonia of air and ammonia, are generally selected in practical application
The slightly higher ratio of air capacity needed for selecting conversion more complete than ammonia, usually 5:1 ~ 15:1, preferably 8:1 ~ 12:1.It is determined that empty
When gas and ammonia ratio, it is necessary to consider the explosion limit of ammonia.
The present invention is used for the catalytic oxidation of ammonia using effective catalyst, compared with two kinds of gases directly burn, reaction
Temperature is greatly reduced, and generally can convert ammonia 100% at 350 ~ 600 DEG C.Required reaction temperature and catalyst A species and
Gas flow is relevant, when catalyst A is oxide catalyst, and reaction temperature is usually 400 ~ 800 DEG C, more preferably 450 ~
600℃；When catalyst A is loaded catalyst, reaction temperature is usually 300 ~ 600 DEG C, more preferably 350 ~ 500 DEG C.With
The temperature is gone up for reaction bed temperature, rather than heter temperature.
The export pipeline of apparatus of the present invention is provided with heat tracing, for preventing nitric oxide from further being aoxidized in course of conveying.
Export pipeline heat tracing temperature is 150 ~ 300 DEG C, preferably 180 ~ 200 DEG C.
Compared with prior art, nitrogen monoxide generating device of the invention and preparation method have it is following significantly a little：
（1）It is simple in construction, it is easy to make and use；
（2）Using effective catalyst, reaction temperature is low, and nitric oxide selectivity is high；
（3）The nitric oxide range of flow of generation is wide, and can fine-tune.
Brief description of the drawings
Fig. 1 is the structural representation of nitrogen monoxide generating device of the present invention；
Fig. 2 is the structure of reactor schematic diagram of nitrogen monoxide generating device as shown in Figure 1.
In figure, 1- valves；2- flow controllers；3- valves；4- flow controllers；5- reacts tube inlet；6- reaction tubes；7-
Catalyst A；8 heating furnaces；9- catalyst B；10- reaction tubes are exported；11- outlet pipes.
Embodiment
Embodiment 1 ~ 9 is some embodiments citing of the present invention, and reactor inside diameter is 25 mm, and catalyst A loadings are
30 ml（Loaded catalyst）Or 50 ml（Oxide）, optional catalyst B loadings are 40 ml.The air of all embodiments
It is 10 with ammonia flow ratio:1, ammonia flow stable regulation between 5 ~ 200 L/h, an oxygen in product after ammonia flow is stable
Change nitrogen content and keep stable therewith.
Ammonia is injected directly into boiler-burner by comparative example 1, and the NO of generation, which is mixed in boiler smoke, to discharge.
Comparative example 2 is used using the converter for ammonia oxidation for meeting document CN101284656A descriptions, built-in platinum rhodium palladium ternary plain net
Burnt in the catalysis of ammonia, reaction needs to use Hydrogen Ignition when starting.Nitric oxide is exported when ammonia flow is less than 50 L/h
Concentration can not keep stable.
NH3Conversion ratio and the selective computational methods of NO are：
NH3Conversion ratio=（Entrance NH3Concentration-outlet NH3Concentration）/ entrance NH3Concentration * 100%
NO selectivity=outlets NO concentration/outlet NOxConcentration * 100%
Following table gives the reaction condition and reaction result of embodiment and comparative example.
An oxygen is prepared using the nitrogen monoxide generating device and comparative example 1 and 2 of the present invention it can be seen from upper table result
Change nitrogen to compare, reaction temperature is substantially reduced, and has more preferable selectivity, especially using crystal reaction tube, infrared reaction
Stove heat, catalyst are under conditions of two kinds of A and B are constituted, and reaction result is optimal.
Claims (8)
1. a kind of nitrogen monoxide generating device, nitric oxide is prepared using ammonia and compressed air as raw material with high selectivity, it is special
Levy and be, described device includes the reaction tube equipped with catalyst（6）, the reaction tube inlet（5）With ammonia and the flow of air
Controller（2,4）Connection, outlet（10）With the pipeline with heat tracing（11）It is connected, the reaction tube（6）By it is external can be automatic
The heating furnace of temperature control（8）Heating.
2. nitrogen monoxide generating device according to claim 1, it is characterised in that also including for being catalyzed nitric oxide life
Into catalyst, the catalyst is by catalyst A（7）With optional catalyst B（9）Composition；The catalyst A（7）Iron with
One in oxide, chromium oxide, cobalt oxide, manganese oxide or the loaded catalyst load type platinum of iron, support type rhodium, load type palladium
Plant or several mixtures；The optional catalyst B（9）It is one or more of mixed in iron, copper, silver, nickel, zinc, molybdenum, tungsten
Compound.
3. nitrogen monoxide generating device according to claim 2, it is characterised in that the catalyst A（7）In support type
One or more of the catalyst carrier in activated carbon, silica, aluminum oxide, titanium oxide, molecular sieve, diatomite.
4. nitrogen monoxide generating device according to claim 1, it is characterised in that the reaction tube（6）For quartz material.
5. nitrogen monoxide generating device according to claim 1, it is characterised in that the heating furnace（8）For high-temperature infrared
Heating furnace.
6. a kind of nitric oxide preparation method of device according to claim 1, it is characterised in that
The volume flow ratio of air and ammonia is 5:1 ~ 15:1；
Reaction pressure is normal pressure；
Reaction temperature is 300 ~ 800 DEG C；
Export pipeline heat tracing temperature is 150 ~ 300 DEG C.
7. nitric oxide preparation method according to claim 6, it is characterised in that reaction tube（6）Reaction temperature be 350
~ 600℃。
8. nitric oxide gas preparation method according to claim 6, it is characterised in that the flow-rate ratio of air and ammonia is
8:1 ~ 12:1。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710585778.7A CN107188139A (en) | 2017-07-18 | 2017-07-18 | A kind of nitrogen monoxide generating device and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710585778.7A CN107188139A (en) | 2017-07-18 | 2017-07-18 | A kind of nitrogen monoxide generating device and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221027A (en) * | 2019-06-12 | 2019-09-10 | 四川轻化工大学 | Nitrogen dioxide standard gas real-time generator, generating device and generating method |
| CN110872714A (en) * | 2018-10-22 | 2020-03-10 | 南京诺全生物医疗科技有限公司 | Portable nitric oxide manufacturing machine |
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| CN106714939A (en) * | 2014-08-15 | 2017-05-24 | 庄信万丰股份有限公司 | Zoned catalyst for treating exhaust gas |
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