CN108178135A - A kind for the treatment of method and apparatus of denitration solid product - Google Patents
A kind for the treatment of method and apparatus of denitration solid product Download PDFInfo
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- CN108178135A CN108178135A CN201711500122.7A CN201711500122A CN108178135A CN 108178135 A CN108178135 A CN 108178135A CN 201711500122 A CN201711500122 A CN 201711500122A CN 108178135 A CN108178135 A CN 108178135A
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- 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
- C01B21/38—Nitric acid
- C01B21/40—Preparation by absorption of oxides of nitrogen
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- 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/10—Halides
Abstract
A kind for the treatment of method and apparatus of denitration solid product, belong to Air Pollution Control and environmental protection technical field, the processing procedure of this method is that the solid product that iron chloride solid particle and nitrogen oxides occur chemical reaction and generate is imported solid product processing unit, hydrolysis occurs with aqueous solution in certain atmosphere, release absorbed oxides of nitrogen gas simultaneously, the oxides of nitrogen gas of high concentration is obtained after the purified processing of oxides of nitrogen gas released, also nitric acid can be prepared after the absorption of oxidized and water, the ferric chloride in aqueous solution obtained after the solid product hydrolysis can obtain relevant solid chlorine molten iron composition powder after crystallisation by cooling, the purpose of resource reclaim so as to reach.
Description
Technical field
The present invention relates to a kind for the treatment of method and apparatus of denitration solid product, belong to Air Pollution Control and relevant environment
Protection technique field.
Background technology
Nitrogen oxides (the NO that mankind's activity generatesx) mainly include NO and NO2, wherein accounting for 90% by what fuel combustion generated
More than, secondly the industrial process such as nitric acid production, the nitration reaction of chemical pharmaceutical, metal surface and semiconductor processes.NOx is to people
There is one of the main reason for intoxicating effect, a large amount of discharged nitrous oxides still cause atmospheric photochemistry mist and acid rain.In recent years,
Country has newly formulated some new laws, regulation, and the nitrogen oxides of the combustion processes such as nitrogen oxides particularly thermoelectricity discharge is made
Stringenter control and emission reduction regulation.Usually, the nitrogen in the flue gas that thermal power plant etc. is generated with combustion of fossil fuel
Oxide concentration is about hundreds of to thousands of ppm, wherein more than 90% is nitric oxide.Selective catalysis conversion method (SCR) at present
It is one of current main means for administering flue gas NOx, but catalyst requires service condition stringent, needs ammonia as reducing agent,
It is very big to the aging effects of catalyst containing sulfide and dust etc. in air-flow, particularly to the fortune using coal as the thermal power plant of fuel
Row is costly.The nitrogen oxidation absorbed using solid chlorine iron in processing air-flow has been disclosed in one of inventor of the present patent application
The method (publication number CN106000079A) of object, it is an object of the present invention to provide the denitration solid products that a kind of above method obtains
Processing method, for recycling related resource.
Invention content
The technical problems to be solved by the invention are to provide a kind of processing method of above-mentioned denitration solid product, for
The solid product that nitrogen oxides in gas-solid reaction tower in iron chloride solid particle and air-flow occurs chemical reaction and generates into
The processing of one step, and recycle related resource.Another technical problem to be solved by this invention is to provide above-mentioned denitration solid product
The dedicated unit of processing method has the characteristics that easy to operate, treatment effeciency is high, treating capacity is big.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of processing method of denitration solid product,
It is produced it is characterized in that the solid product that chemical reaction occurs for iron chloride solid particle and nitrogen oxides and generates is imported the solid
The processing unit of object occurs hydrolysis with aqueous solution in certain atmosphere, while releases absorbed oxides of nitrogen gas,
High concentration nitrogen oxide gas is obtained after the purified processing of oxides of nitrogen gas released, it also can the suction of oxidized and water
Nitric acid is prepared after receipts, the ferric chloride solution obtained after the solid product hydrolysis can obtain relevant solid chlorine after crystallisation by cooling
Change molten iron composition powder, the purpose of the resource reclaim so as to reach.
Solid product processing unit of the present invention is mainly by groups such as solid-liquid reaction device, clarifier and cooler crystallizers
Into, wherein, the common solid-liquid contact reactor of chemical engineering unit operation can be used in solid-liquid reaction device structure, can be used with stirring
Reactor, solid and liquid material can be used sequence and batch feed intake or continuous dosing mode, can be by controlling the throwing of solid and liquid
Dosage controls reaction speed, and specific equipment can be referring to chemical industry relevant device handbook.It is described by taking fixed bed vertical reactor as an example
Reactor be provided with that the solid product adds in mouth, liquid adds in mouth, inert gas import (vacuum orifice), nitrogen oxides
Gas discharge outlet and liquid outlet etc..
Aqueous solution of the present invention includes clear water or acidity or alkaline aqueous solution, generally based on clear water, adds in certain
The solubility of solid product can be increased after amount acid, the byproducts such as iron hydroxide or iron oxide can be obtained by adding in alkali.The water
The addition of solution is without particular/special requirement, and can dissolve solid product, the concentration of the few then solution of water is high, advantageous to post-process
Crystallization process.Best solid-liquid mass ratio is 1: 1-1: 2.Certain atmosphere of the present invention be included in vacuum or inert gas or
Solid-liquid dissolving reaction is carried out in oxygen or air, the requirement of different product is obtained to meet, such as to obtain purity nitrogen oxide gas
Or certain density oxides of nitrogen gas, it is generally carried out in vacuum or atmosphere of inert gases, such as further to prepare titanium dioxide
Nitrogen or nitric acid can carry out in having oxygen or air atmosphere.The inert gas for not with the gas of reaction of nitrogen oxides,
Such as nitrogen, argon gas and carbon dioxide.Nitrogen oxides of the present invention may contain a small amount of titanium dioxide based on nitric oxide
Nitrogen.
Solid-liquid reaction device of the present invention, can be suitably heated to improve the dissolving of solid-liquid reaction speed and solid material
Degree, heating temperature range be generally 100 DEG C hereinafter, preferred range be 35 DEG C -50 DEG C, when heating temperature is excessively high, can cause
The effusion of steam and hydrogen chloride gas will add the load of dehumidifying and the purification of subsequent gaseous product nitrogen oxides air-flow
Greatly.It is suitable that multiple means, the effects such as electrical heating, heat-conducting medium heating, electromagnetic heating or microwave heating can be used in heating.It is described
Solid-liquid dissolving reaction process is exothermic reaction, the nitrogen oxides released can by dehumidify and purify remove it is a small amount of in air-flow
Hydrogen chloride etc. other not after pure gas, obtain nitrogen oxides product after compression.It also can be further by way of oxidative absorption
Nitric acid is prepared, related nitrogen oxides prepares nitric acid industry technology maturation, specifically can be referring to related chemical industry handbook.Treat solid product institute
The ferric chloride in aqueous solution of acquisition all after release, is carried out crystallisation by cooling, can obtain solid chlorine molten iron by the nitrogen oxides of absorption
Close product.Also further a certain amount of hydrogen chloride gas can be passed through to liquid phase or add in suitable hydrochloric acid, make in solid product still
After the substances such as undissolved small amounts iron and FeOCl are further converted to iron chloride, then liquid carried out cooling knot
It is brilliant.Also can the byproducts such as iron hydroxide or iron oxide further be obtained after the alkali such as liquid phase addition sodium hydroxide.It also can be in solid-liquid
In reactor after liquid phase is passed through appropriate hydrogen chloride gas or adds in hydrochloric acid, the ferric chloride in aqueous solution is evaporated, it is anhydrous to prepare
Iron chloride solid product, evaporation heating temperature is generally in 50 DEG C or more, preferably 60-120 DEG C, iron chloride when temperature is more than 310 DEG C
Distillation.The content of nitrogen oxides is about 10-20% in the general solid product, specifically by the gas of iron chloride and nitrogen oxides-
Gu reaction conversion ratio determines.
Clarifier of the present invention can be composed in series by desiccant dehumidification and acid gas purifying two parts, and dehumidifying can be used
Issuable a small amount of hydrogen chloride gas can be used solid alkaline suction in the methods of dehumidification by condensation device or calcium chloride adsorption tower dehumidify
Attached dose or can with the solid metal oxide of hydrogen chloride gas precursor reactant, including hydrogen-oxygen calcium oxide, calcium oxide, calcium carbonate, iron oxide
It is removed with absorptions such as zinc oxide.Nitric acid is prepared then without dehumidifying, and the hydrogen chloride gas in saturated salt solution removing air-flow can be used.
It is optionally determined using the condensation temperature of dehumidification by condensation or the adsorbent usage amount of adsorption and dehumidification with technological parameter requirement.The present invention
The crystallisation by cooling uses common chemical crystallization slot, and general crystallisation by cooling temperature is 25 DEG C and hereinafter, it is preferred that 5-10 DEG C.On
It is common chemical process to state, and the relevant technologies are ripe, specifically can be referring to related chemical industry handbook.
A kind of processing unit of denitration solid product of the present invention, the solid-liquid reaction device top of the device are set
It being equipped with liquid and adds in mouth, blender and solid product addition mouth, upper lateral part is provided with solid-liquid reaction device discharge gas connection pipe,
Side is provided with inert gas import (vacuum orifice), is internally provided with web plate for placing the solid product, lower part is set
Solid-liquid reaction device discharge fluid connection tube is equipped with, the solid-liquid reaction device discharge fluid connection tube is connected with cooler crystallizer,
The cooler crystallizer is respectively arranged with crystalline product outlet and cooler crystallizer solution outlet, the solid-liquid reaction device row
Go out gas connection pipe to connect with clarifier, clarifier is additionally provided with clarifier gas discharge outlet.
A kind of processing unit processing technological flow of above-mentioned denitration solid product is can to first pass through inert gas import (to take out true
Eat dishes without rice or wine) first vacuumize removing air or first vacuumize be filled with afterwards the inert gas replacements such as nitrogen or argon gas or carbon dioxide regeneration
Air in stove, then respectively by solid product add in mouth into solid-liquid reaction device on web plate add in denitration solid product and
Mouth is added in by liquid and adds in clear water or aqueous solution to solid-liquid reaction device, being carried out at the same time to start blender and be stirred (can also fit
When heating), the high concentration nitrogen oxide gas that solid-liquid reaction generates is discharged gas connection pipe by solid-liquid reaction device and is entered only
After change device is dehumidified and purified, discharged by clarifier gas discharge outlet, to handle in next step.The solid product and water
Liquid after the reaction of solution enters cooler crystallizer crystallisation by cooling through solid-liquid reaction device discharge fluid connection tube, obtained knot
The brilliant crystallized products export of product obtains, remaining solution recycles after the discharge of cooler crystallizer solution outlet.
The aqueous solution of the present invention for adding in solid-liquid reaction device can also can dissolve iron chloride with ethyl alcohol, acetone etc.
Organic solvent substitutes, and equally solid product can be made to release absorbed nitrogen oxides.
The advantage of the invention is that：The solid that iron chloride solid particle and nitrogen oxides occur chemical reaction and generate is produced
Object imports solid-liquid reaction tower, and absorbed nitrogen oxides is released through solid-liquid reaction, gained air-flow through desiccant dehumidification, purification at
It can obtain high-purity oxides of nitrogen gas after reason, also can prepare nitric acid after oxidized and absorption, liquid product can be obtained through crystallisation by cooling
To the products such as iron chloride hydrate or iron hydroxide, anhydrous ferric chloride product can be also prepared, it is achieved thereby that the recycling profit of resource
With, have equipment cost and operating cost it is low, it is easy to operate, treatment effeciency is high the characteristics of.
Description of the drawings
Fig. 1 is a kind of denitration solid product processing unit schematic diagram used in the embodiment of the present invention.Wherein：1 web plate；2 inertia
Gas feed (vacuum orifice)；3 solid-liquid reaction devices；4 liquid add in mouth；5 blenders；6 solid products add in mouth；7 solid-liquids are anti-
Device is answered to discharge gas connection pipe；8 clarifiers；9 clarifier gas discharge outlets；10 solid-liquid reaction devices discharge fluid connection tube；11 is cold
But crystallizer；12 crystalline products export；13 cooler crystallizer solution outlets.
Specific embodiment
The present invention is described in further detail below in conjunction with drawings and examples.
A kind of processing unit of the denitration solid product is as shown in Figure 1.The solid-liquid reaction device (3) of the device
Top is provided with liquid addition mouth (4), blender (5) and solid product and adds in mouth (6), and upper lateral part is provided with solid-liquid reaction device
Gas connection pipe (7) is discharged, side is provided with inert gas import (vacuum orifice) (2), is internally provided with web plate (1) for putting
The solid product is put, lower part is provided with solid-liquid reaction device discharge fluid connection tube (10), the solid-liquid reaction device discharge
Fluid connection tube (10) is connected with cooler crystallizer (11), and the cooler crystallizer (11) is respectively arranged with crystalline product outlet
(12) it is connected with cooler crystallizer solution outlet (13), solid-liquid reaction device discharge gas connection pipe (7) clarifier (8),
Clarifier (8) is additionally provided with clarifier gas discharge outlet (9).
Processing technological flow is can to first pass through inert gas import (vacuum orifice) (2) to vacuumize removing air (as prepared
Nitric acid can not be evacuated) or the inert gases such as nitrogen or argon gas or carbon dioxide are filled with after vacuumizing, then produced respectively by solid
Object add in mouth (5) on solid-liquid reaction device (3) interior web plate (1) add in denitration solid product and by liquid add in mouth (4) to
Solid-liquid reaction device (3) adds in clear water or aqueous solution, is carried out at the same time and starts blender (5) and be stirred and (can suitably heat), Gu-
The high concentration nitrogen oxide gas that liquid reaction generates discharges gas connection pipe (7) by solid-liquid reaction device, into clarifier (8)
After dehumidifying and purification is dried, discharged by clarifier gas discharge outlet (9), to handle in next step.The solid product
It cools down and ties into cooler crystallizer (11) through solid-liquid reaction device discharge fluid connection tube (10) with the liquid after the reacting of aqueous solution
Crystalline substance, the obtained crystallized products export of crystalline product (12) obtain, remaining solution is arranged through cooler crystallizer solution outlet (13)
It is recycled after going out.Above-mentioned solid and liquid feed process can continuously or gap adds.
To improve the solubility of solid product in the solution, can be also passed through to the liquid phase in solid-liquid reaction device a certain amount of
Hydrogen chloride gas adds in a certain amount of hydrochloric acid, make in solid product the substances such as still undissolved iron oxide and FeOCl into
After one step is converted into iron chloride, then liquid is carried out crystallisation by cooling and obtains solid chlorine iron hydrate crystal.It also can be further to liquid
Iron hydroxide byproduct can be obtained after being added to sodium hydroxide lye.Also further there can be chlorination in solid-liquid reaction device
Hydrogen protection is lower or evaporates the ferric chloride in aqueous solution after adding in hydrochloric acid, with prepare anhydrous ferric chloride solid product (at this time without
Crystallization Procedure).
Embodiment 1：A kind of processing unit schematic diagram of the denitration solid product is as shown in Figure 1.Solid-liquid reaction device ruler
Very little is Φ 300mm × 600mm, and external insulation can simultaneously heat, and crystallisation by cooling slot is the cylinder of Φ 600mm, and high 500mm crystallizes temperature
About 5-10 DEG C of degree.Clarifier by being filled with the filling layer cylinder of calcium chloride granules drier and calcium oxide particle adsorbent respectively
Component forms, and is respectively used to the removing of steam and hydrogen chloride gas in air-flow, the size of the cylinder be Φ 150mm ×
500mm, filling layer height is 300mm or so.More than equipment material is fiberglass.
Operating procedure is after first being vacuumized to solid-liquid reaction device, adds in the solid product after the denitration reaction about
1.5kg/min, while clear water is added in, addition is about 1.5L/min, and continuous charging starts blender, after solid product dissolving
Oxides of nitrogen gas is discharged, purified device desiccant dehumidification and purified nitrogen oxides air-flow obtain after gas compressor compresses
Oxides of nitrogen gas product.Crystallisation by cooling slot is injected at solid product dissolved solution interval, and chlorination is obtained after crystallisation by cooling
Molten iron composition powder can be used as aqueous solution to add in solid-liquid reaction device and apply mechanically after the not condensate recycling of crystallization tank.
Embodiment 2：In above-described embodiment 1, clarifier uses bubble cleaning tower, and size is Φ 150mm × 500mm, is adopted
The hydrogen chloride gas in removal air-flow, the same embodiment of other conditions are absorbed with saturated common salt aqueous solution (static height about 150mm)
1.The inert gas import (vacuum orifice) of solid-liquid reaction device adds in appropriate air or oxygen, keeps in solid-liquid reaction device as sky
Gas or hyperoxia atmosphere make the high concentration nitric oxide that the denitration solid product releases be oxidized to nitrogen dioxide, then through two
Grade water can prepare salpeter solution after absorbing.
Embodiment 3：Other conditions are the same as embodiment 1.In the dissolved ferric chloride in aqueous solution of solid product in operating procedure
Addition and denitration solid product quality sodium hydroxide solution about the same (concentration about 40%), obtain iron hydroxide after reaction and consolidate
Body precipitates, and is then introduced into crystallisation by cooling slot, solid hydrogen iron oxide product is obtained after separation of solid and liquid.
Embodiment 4：In 1 solid-liquid reaction device of embodiment after the completion of solid-liquid reaction, stop charging, and into reactor
Ferric chloride in aqueous solution imports a certain amount of hydrogen chloride gas or hydrochloric acid solution, and the pH value of the aqueous solution is made to be not more than 3, Ran Houzheng
Send out aqueous solution described, heating temperature is about 60-95 DEG C, while extracts the steam being evaporated, and treats to obtain after water evaporation
To anhydrous ferric chloride.Heating temperature is improved (generally in below 310C), is then reduced the time required to evaporation, other same.
Embodiment 5：In embodiment 1, clear water is changed into ethyl alcohol, high concentration nitrogen oxide gas is also can obtain after solid-liquid reaction
Stream.
It should be noted that above example is merely to illustrate technical scheme of the present invention, protection scope of the present invention is not
It is limited to this.For those skilled in the art, all within the spirits and principles of the present invention, to recorded in each embodiment
Technical solution modifies or carries out any equivalent replacement, modification, changes and improvements etc. to some technical characteristics therein,
It should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of processing method of denitration solid product, it is characterised in that chemistry is occurred for iron chloride solid particle and nitrogen oxides
The solid product for reacting and generating imports solid product processing unit, hydrolysis occurs with aqueous solution in certain atmosphere, together
When release absorbed oxides of nitrogen gas, obtain high concentration after the purified processing of oxides of nitrogen gas released
Oxides of nitrogen gas, also can oxidized and water absorb after prepare nitric acid, the iron chloride obtained after solid product hydrolysis
Aqueous solution can obtain relevant solid chlorine molten iron composition powder after crystallisation by cooling.
2. according to the method described in claim 1, it is characterized in that certain atmosphere includes vacuum or inert gas or oxygen
Gas or air, the inert gas for not with the gas of reaction of nitrogen oxides, including nitrogen, argon gas and carbon dioxide.
3. according to the method described in claim 1, it is characterized in that the aqueous solution includes clear water, acidity or alkaline water-soluble
Liquid.
4. according to method described in claim 1, it is characterised in that after adding in sodium hydroxide solution in the ferric chloride in aqueous solution
Obtain iron hydroxide product.
5. according to the method described in claim 1, it is characterized in that be passed through in the ferric chloride in aqueous solution hydrogen chloride gas or
The ferric chloride in aqueous solution is evaporated after adding in hydrochloric acid, to prepare anhydrous ferric chloride solid product.
6. according to the method described in claim 6, it is characterized in that the evaporation heating temperature is at 50 DEG C or more.
A kind of 7. device of the processing method of denitration solid product according to claim 1, it is characterised in that the device
Including solid-liquid reaction device, clarifier and cooler crystallizer, the solid-liquid reaction device top is provided with liquid and adds in mouth, solid
Product adds in mouth and blender, and upper lateral part is provided with solid-liquid reaction device discharge gas connection pipe, side be provided with inert gas into
Mouth (vacuum orifice) is internally provided with web plate for placing the solid product, and lower part is provided with solid-liquid reaction device discharge liquor
Body connecting tube, the solid-liquid reaction device discharge fluid connection tube are connected with cooler crystallizer, and the cooler crystallizer is set respectively
There are crystalline product outlet and cooler crystallizer solution outlet, the solid-liquid reaction device discharge gas connection pipe connects with clarifier
Logical, clarifier is additionally provided with clarifier gas discharge outlet.
8. device according to claim 8, it is characterised in that the processing technological flow of described device first passes through inert gas
Import (vacuum orifice) is first vacuumized or first vacuumized is filled with the regeneration of the inert gas replacements such as nitrogen or argon gas or carbon dioxide afterwards
Air in stove, then respectively by solid product add in mouth into solid-liquid reaction device on web plate add in denitration solid product and
Mouth is added in by liquid and adds in clear water or aqueous solution to solid-liquid reaction device, is carried out at the same time and is started blender and be stirred, solid-liquid
React generate high concentration nitrogen oxide gas by solid-liquid reaction device discharge gas connection pipe enter clarifier carry out dehumidifying and
It after purification, is discharged by clarifier gas discharge outlet, the liquid after the reacting of the solid product and aqueous solution is through solid-liquid reaction
Device discharge fluid connection tube enters cooler crystallizer crystallisation by cooling, and the crystallized products export of obtained crystalline product obtains, remaining
Solution recycles after the discharge of cooler crystallizer solution outlet.
9. device according to claim 8, it is characterised in that the clarifier is by desiccant dehumidification and acid gas purifying two
Part forms, and dehumidifying includes dehumidification by condensation device or solid calcium chloride absorption or transformation dehumidifying, acid gas purifying include solid base
Property adsorbent or metal oxide absorption or saturated common salt absorb.
10. according to the method described in claim 1, it is characterized in that the aqueous solution, which can also be used, can dissolve having for iron chloride
Solvent substitutes, including ethyl alcohol or acetone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711500122.7A CN108178135A (en) | 2017-12-25 | 2017-12-25 | A kind for the treatment of method and apparatus of denitration solid product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711500122.7A CN108178135A (en) | 2017-12-25 | 2017-12-25 | A kind for the treatment of method and apparatus of denitration solid product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715146A (en) * | 2020-03-31 | 2020-09-29 | 同济大学 | Solid-liquid dual-purpose high-temperature high-pressure carbonization reaction kettle capable of indicating carbonization degree |
| WO2023222066A1 (en) * | 2022-05-20 | 2023-11-23 | 黄立维 | Method and apparatus for generating nitric oxide gas |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747227A (en) * | 1993-08-04 | 1995-02-21 | Kobe Steel Ltd | Purification of exhaust gas containing nitrogen oxide in low concentration |
| JP2004237140A (en) * | 2003-02-03 | 2004-08-26 | Nippon Shokubai Co Ltd | Adsorbent for nitrogen oxide, method for manufacturing and regenerating the same, method for removing nitrogen oxide and method for cleaning nitrogen oxide-containing gas |
| CN105170070A (en) * | 2015-07-08 | 2015-12-23 | 黄立维 | Denitration and desulfurization ferric chloride solid particles and preparation method thereof |
| CN105536501A (en) * | 2016-01-06 | 2016-05-04 | 黄立维 | Regeneration method for ferric chloride for denitration |
| CN106000079A (en) * | 2015-07-02 | 2016-10-12 | 黄立维 | Method and device for removing nitrogen oxides from airflow |
-
2017
- 2017-12-25 CN CN201711500122.7A patent/CN108178135A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747227A (en) * | 1993-08-04 | 1995-02-21 | Kobe Steel Ltd | Purification of exhaust gas containing nitrogen oxide in low concentration |
| JP2004237140A (en) * | 2003-02-03 | 2004-08-26 | Nippon Shokubai Co Ltd | Adsorbent for nitrogen oxide, method for manufacturing and regenerating the same, method for removing nitrogen oxide and method for cleaning nitrogen oxide-containing gas |
| CN106000079A (en) * | 2015-07-02 | 2016-10-12 | 黄立维 | Method and device for removing nitrogen oxides from airflow |
| CN105170070A (en) * | 2015-07-08 | 2015-12-23 | 黄立维 | Denitration and desulfurization ferric chloride solid particles and preparation method thereof |
| CN105536501A (en) * | 2016-01-06 | 2016-05-04 | 黄立维 | Regeneration method for ferric chloride for denitration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715146A (en) * | 2020-03-31 | 2020-09-29 | 同济大学 | Solid-liquid dual-purpose high-temperature high-pressure carbonization reaction kettle capable of indicating carbonization degree |
| WO2023222066A1 (en) * | 2022-05-20 | 2023-11-23 | 黄立维 | Method and apparatus for generating nitric oxide gas |
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