CN105582802A - Regeneration method of aluminum chloride for denitration - Google Patents

Regeneration method of aluminum chloride for denitration Download PDF

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CN105582802A
CN105582802A CN201610021193.8A CN201610021193A CN105582802A CN 105582802 A CN105582802 A CN 105582802A CN 201610021193 A CN201610021193 A CN 201610021193A CN 105582802 A CN105582802 A CN 105582802A
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gas
solid
chloride
aluminum chloride
aluminium chloride
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黄立维
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B01D53/565—Nitrogen oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention relates to a regeneration method of aluminum chloride for denitration and belongs to the technical field of air pollution control and environmental protection. The treatment process of the method is as follows: aluminum chloride solid particles and nitric oxides in airflow have a chemical reaction in a gas-solid reaction tower to produce a solid product to be introduced into an aluminum chloride regeneration furnace, heating is performed in the shielding atmosphere of inert gases such as nitrogen and the like or after vacuum pumping, absorbed nitric oxides are released, hydrogen chloride gas is further introduced into the aluminum chloride regeneration furnace, basic aluminum chloride and aluminum hydroxide in the solid product are converted into aluminum chloride, so that the aluminum chloride is regenerated, nitric acid can be recovered, and the aluminum chloride regeneration furnace can also be used as a gasification furnace for preparing aluminum chloride solid particles for denitration. The regeneration method has the characteristics of low investment cost and running cost, simplicity in operation, high treatment efficiency and high treatment capacity.

Description

The renovation process of aluminium chloride for a kind of denitration
Technical field
The present invention relates to the renovation process of a kind of denitration aluminium chloride, belong to Air Pollution Control and relevant environment resist technology neckTerritory.
Background technology
Nitrogen oxide (the NO that mankind's activity producesx) mainly comprise NO and NO2, wherein produced by fuel combustion account for 90% withUpper, be secondly the industrial process such as nitration reaction, metal surface and semiconductor processes of nitric acid production, chemical pharmaceutical. NOXTo peopleHave intoxicating effect, a large amount of discharged nitrous oxides still causes the one of the main reasons of atmospheric photochemistry mist and acid rain. Chinese environmentalSituation communique statistics shows that the contribution of nitrogen oxide in China's Urban Acid Rain is in continuous increase, the Acid Rain Pollution that some are localMatter has started by sulfuric acid type to the ever-increasing compound conversion of nitrate ion (national environmental protection portion: Chinese environmental situation in 2010Communique). In recent years, country has newly formulated some new laws, regulation, to the particularly combustion process such as thermoelectricity discharge of nitrogen oxideNitrogen oxide has been made stricter control and has been reduced discharging regulation.
Usually, the nitrous oxides concentration in the flue gas that thermal power plant etc. produces with combustion of fossil fuel is about hundreds of to several thousandPpm more than 90% is wherein nitric oxide. Selective catalysis conversion method (SCR) is to administer at present flue gas NO at presentXMainOne of means, but catalyst is strict to service condition requirement, needs ammonia as reducing agent, contains sulfide and dust etc. in air-flowLife-span impact on catalyst is very large, particularly very high to the operating cost of the thermal power plant taking coal as fuel; Wet method is to adopt solutionThe NO that various industrial process are producedXAbsorb, be discharged at lower temperature source process main method, mainly contain oxidation absorption process andTwo kinds of Reducing and absorption methods, wherein, oxidizing process is to adopt ozone, hydrogen peroxide and clorox etc. as oxidation absorbent, carries outAbsorb and process; Reducing process is to adopt sodium sulfite, vulcanized sodium and urea etc. as reducing agent, absorbs processing. But to containing oneThe more nitrogen oxide of nitrogen oxide, because the solubility of nitric oxide in solution is very little, absorption efficiency is lower, and medicament is more expensive, fortuneRow expense is high. Therefore, be badly in need of research and development new purification of nitrogen oxides and treatment technology.
The object of this invention is to provide the renovation process of a kind of denitration aluminium chloride, for removing nitrogen oxide from air-flow.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of denitration aluminium chloride renovation process, in gas-solid reaction towerNitrogen oxide generation chemical reaction in aluminum chloride solids particle and air-flow and the regeneration of the solid product that generates, and recyclable nitric acid.
Another technical problem to be solved by this invention is to provide the special purpose device of above-mentioned denitration aluminium chloride renovation process, hasThe feature easy to operate, treatment effeciency is high, treating capacity is large.
The present invention solves the problems of the technologies described above adopted technical scheme: the renovation process of aluminium chloride for a kind of denitration, its featureIt is the solid product that the nitrogen oxide generation chemical reaction in aluminum chloride solids particle in gas-solid reaction tower and air-flow is generatedImport aluminium chloride regenerating furnace, in vacuum or inert gas shielding atmosphere, be heated to uniform temperature, discharge absorbed nitrogen oxidationThing, makes solid product again be converted into aluminium chloride, after absorbed nitrogen oxide releases, then imports to aluminium chloride regenerating furnaceHydrogen chloride gas, makes aluminium chloride and aluminium hydroxide etc. in solid product transform aluminium chloride, thereby reaches the object of regeneration.
Described aluminium chloride regenerating furnace version can adopt the conventional gas-solid contact reactor of chemical engineering unit operation, as fixed bed,Ebullated bed, thermopnore, the reactors such as recirculating fluidized bed or moving bed, also can adopt and be with churned mechanically reactor, can adopt orderCriticize and feed intake and continuous dosing mode, specifically can be referring to chemical reaction relevant device handbook, effect is about the same. Criticize and feed intake with orderFixed bed vertical reactor is example, and described regenerating furnace is provided with described solid product and adds entrance, inert gas import (or chlorineChange hydrogen import), oxides of nitrogen gas outlet (or vacuum orifice) and gaseous aluminum chloride outlet etc.
Regenerating furnace internal pressure is generally a little higher than normal pressure or normal pressure or negative pressure (vacuum), and solid product release institute described under normal pressure inhalesThe heating-up temperature scope of the nitrogen oxide of receiving is generally more than 100 DEG C, and preferred range is 180 DEG C-350 DEG C, under negative pressure, addsHot temperature degree can be lower. Actual mechanical process, heating-up temperature is high, and described solid product decomposition rate is fast, and heating can adopt electricity to addThe multiple means such as heat, heat-conducting medium heating, Electromagnetic Heating or heating using microwave, effect is suitable. Described solid product regenerative processThe mode that the nitrogen oxide discharging can absorb by oxidation is prepared nitric acid, and related industries technology maturation specifically can be referring to relevantizationWork handbook. The nitrogen oxide absorbing until solid product further imports hydrogen chloride gas to regenerating furnace after all discharging, and makes solidThe material such as aluminium chloride and aluminium hydroxide and hydrogen chloride gas in body product react and are converted into aluminium chloride. Hydrogen chloride gasBulk concentration (volume ratio, carrier gas is inert gas) is generally 0.05%-100%, can be according to structure of reactor, operating condition etc.Setting parameter, the high reaction of concentration is fast, and when gas is mobile phase, chlorine hydride gas concentration is preferably 1%-30%. Alkali under normal pressureMore than formula aluminium chloride and aluminium hydroxide etc. are generally normal temperature with the reaction temperature of hydrogen chloride gas, preferred range be 30 DEG C-350 DEG C. Reaction temperature is higher to be conducive to reaction and to carry out, but reaction temperature (under normal pressure, reaction temperature is about more than 170 DEG C when higherTime), solid aluminum chloride will distil as gaseous aluminum chloride, can be by obtaining solid aluminum chloride after condensation, and condensation temperature is generally at 120 DEG CBelow. Inert gas of the present invention is the gas that does not participate in reaction, as nitrogen or argon gas or carbon dioxide etc.
Be converted into the course of reaction of aluminium chloride for accelerating aluminium chloride and aluminium hydroxide etc. in solid product, also can treat that solid producesNitrogen oxide in thing adds concentrated hydrochloric acid after all discharging in regenerating furnace, can make in solid product submergence concentrated hydrochloric acid, then pass intoHydrogen chloride gas, other processes are constant. Described concentrated hydrochloric acid concentration is generally more than 5%, and concentration is higher, reacts faster.
The solid aluminum chloride that a kind of denitration of the present invention obtains with the renovation process of aluminium chloride can directly import gas-solid reactionTower, reacts with the nitrogen oxide in air-flow, also can through gasification after prepare denitration aluminum chloride solids particle, now described inThe aluminium chloride regenerating furnace gasification furnace that can be used as preparation denitration aluminum chloride solids particle use, preparation denitration aluminum chloride solidsThe technical process of particle can be referring to another application for a patent for invention of the present patent application people. Using regenerating furnace simultaneously as preparing aluminium chlorideWhen the gasification furnace of solid particle, the top of described regenerating furnace is also provided with tube connector and is communicated with cooler, on described tube connectorAlso be provided with inert gas carrier gas inlet, described cooler is communicated with gas-solid reaction tower by aluminum chloride solids particle discharge pipe,Described gas-solid reaction tower is provided with processed gas feed and purifies rear gas vent. Gasification furnace internal pressure is without particular/special requirement,Be generally a little higher than normal pressure or normal pressure or negative pressure, heating-up temperature scope is generally more than 120 DEG C, gasification rate of heating-up temperature heightHurry up, preferred range is 170 DEG C-450 DEG C.
Gas-solid reaction tower of the present invention can adopt the conventional fixed bed of chemical engineering unit operation, moving bed, ebullated bed, fluidisationBed and the gas-solid haptoreaction equipment such as recirculating fluidized bed, can adopt the various ways such as following current, adverse current and cross-flow, specifically can be referring toChemical reaction relevant device handbook, effect is about the same, also can be referring to another application for a patent for invention of the present patent application people. InstituteRange of reaction temperature under the aluminum chloride solids particle of stating and the normal pressure of nitrogen oxide in gas-solid reaction tower be generally 20 DEG C-180 DEG C, preferential temperature range is 35 DEG C-120 DEG C.
The invention has the advantages that: chemistry is occurred the nitrogen oxide in aluminum chloride solids particle and air-flow in gas-solid reaction tower toThe solid product reacting and generate imports aluminium chloride regenerating furnace, heating in the inert gas shielding atmosphere such as nitrogen or after vacuumizing,Discharge absorbed nitrogen oxide, further import hydrogen chloride gas to regenerating furnace, make aluminium chloride in solid product andThe Substance Transformation aluminium chloride such as aluminium hydroxide, thus reach the object that aluminium chloride is regenerated, and recyclable nitric acid. Described aluminium chloride againThe gasification furnace that raw stove also can be used as preparation denitration aluminum chloride solids particle uses, and after aluminium chloride regeneration, can be recycled, and hasCost of investment and operating cost are low, simple to operate, treatment effeciency is high, the feature that treating capacity is large.
Brief description of the drawings
Fig. 1 is the fixed bed device schematic diagram of the renovation process of the embodiment of the present invention a kind of denitration used aluminium chloride. Wherein: 1Aluminium chloride regenerating furnace; 2 inert gas imports (or hydrogen chloride gas import); 3 web plates; 4 solid products add entrance; 5 nitrogen oxidationsThing gas discharge outlet (or vacuum orifice); 6 gaseous aluminum chloride outlets; 7 access holes.
Fig. 2 is the dress of the embodiment of the present invention a kind of denitration used aluminium chloride regenerating furnace as preparation aluminum chloride solids particle gasification furnacePut schematic diagram. Wherein: 1 aluminium chloride regenerating furnace; 2 inert gas imports (or hydrogen chloride gas import); 3 web plates; 4 solids produceThing adds entrance; 5 oxides of nitrogen gas outlets (or vacuum orifice); 6 gaseous aluminum chloride outlets; 7 access holes; 8 carrier gas are enteredMouthful; 9 coolers; 10 aluminum chloride solids particle discharge pipes; 11 gas-solid reaction towers; 12 purify rear gas vent; 13 are locatedReason gas feed; Solid particle outlet after 14 reactions.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
A kind of fixed bed device schematic diagram of renovation process of described denitration use aluminium chloride as shown in Figure 1. The chlorination of described deviceThe bottom of aluminium regenerating furnace (1) is provided with inert gas import (or hydrogen chloride gas import) (2), is provided with on the top of body of heaterSolid product adds entrance (4), oxides of nitrogen gas outlet (or vacuum orifice) (5) and gaseous aluminum chloride outlet (6),In stove, be provided with web plate (3) for placing described solid product, bottom is also provided with access hole (7).
Processing technological flow is first to add entrance (4) by solid product to add chlorine on the interior web plate of aluminium chloride regenerating furnace (1) (3)Change the solid product after aluminium denitration reaction, be then filled with nitrogen etc. by inert gas import (or hydrogen chloride gas import) (2)Air in inert gas replacement regenerating furnace (also can first vacuumize remove air then be filled with inert gas), inertia in regenerating furnaceIn gas shield atmosphere, (or after vacuumizing) is heated to uniform temperature, by oxides of nitrogen gas outlet (or vacuum orifice)(5) discharge absorbed nitrogen oxide, make solid product again be converted into aluminium chloride, treat that absorbed discharged nitrous oxides is completeBi Hou, then import hydrogen chloride gas by inert gas import (or hydrogen chloride gas import) (2) to regenerating furnace, solid is producedThe Substance Transformation such as aluminium chloride and the aluminium hydroxide aluminium chloride containing in thing, if when in stove, temperature is greater than approximately 170 DEG C, chlorinationAluminium will distil as gaseous state, can discharge by gaseous aluminum chloride outlet (6), then after condensation, obtain solid aluminum chloride.
For the course of reaction that the Substance Transformation such as aluminium chloride and aluminium hydroxide of accelerating in solid product is aluminium chloride, also can treat solidAfter nitrogen oxide in body product all discharges, add entrance (4) by solid product dense to adding in aluminium chloride regenerating furnace (1)After hydrochloric acid, solid product is immersed in concentrated hydrochloric acid, then by inert gas import (or hydrogen chloride gas import) (2) to againRaw stove imports hydrogen chloride gas, and other operating process are the same.
A kind of described denitration with aluminium chloride regenerating furnace as the fixed bed device schematic diagram of aluminum chloride solids particle gasification furnace as Fig. 2Shown in. The bottom of the aluminium chloride regenerating furnace (1) of described device is provided with inert gas import (or hydrogen chloride gas import) (2),Be provided with solid product on the top of body of heater and add entrance (4), oxides of nitrogen gas outlet (or vacuum orifice) (5) and gaseous stateAluminium chloride outlet (6), is provided with web plate (3) for placing described solid product in stove, bottom is also provided with access hole (7),Gaseous aluminum chloride outlet (6) is communicated with cooler (9) by tube connector, is also provided with carrier gas inlet on described tube connector(8), described cooler (9) is communicated with gas-solid reaction tower (11) by aluminum chloride solids particle discharge pipe (10), instituteThe gas-solid reaction tower (11) of stating be provided with processed gas feed (13) and purify after gas vent (12), described gas-Gu reaction tower bottom is also provided with the rear solid product outlet (14) of reaction.
The leading portion operation of the described denitration processing technological flow during as aluminum chloride solids particle gasification furnace with aluminium chloride regenerating furnace withThe device technique flow process of the renovation process of described aluminium chloride is consistent, when solid product is all converted into after aluminium chloride, can be used as gasChange stove and use, the hydrogen chloride gas that the regenerating furnace of first finding time contains, then, with gasification furnace operating procedure, passes through inert gas import(or hydrogen chloride gas import) (2) are filled with after inert protective gas, in inert gas shielding atmosphere, are heated to uniform temperature,Make aluminium chloride gasification become gaseous aluminum chloride, be then arranged on the inert gas that carrier gas inlet on tube connector (8) passes into and take to coldBut in device (9), carry out coolingly fast, make gaseous aluminum chloride be converted into aluminum chloride solids particle, then by aluminum chloride solids particleDischarge pipe (10) enters gas-solid reaction tower (11), in gas-solid reaction tower (11), and the nitrogen oxide in air-flow and chlorinationAluminium generation gas-solid adsorption chemical reaction and being absorbed, generates solid product, and processed air-flow is by processed gas feed (13)Enter gas-solid reaction tower (11), the gas vent (12) from purifying of the air-flow after purification is discharged, and after reaction, solid particle is from insteadSolid particle outlet (14) is discharged afterwards, thereby reaches gas purification object. The gaseous state chlorination producing at aluminium chloride regenerating furnaceAluminium, the inert gas that also can be passed into by inert gas import (or hydrogen chloride gas import) (2) takes in cooler (9) and carries outCooling.
Embodiment 1: a kind of fixed bed device schematic diagram of renovation process of described denitration use aluminium chloride as shown in Figure 1. ChlorinationAluminium regenerating furnace is tubular type, is of a size of Φ 60mm × 600mm, adds the about 100g of solid product after gas-solid reaction tower denitration reaction,Regenerating furnace protection inert gas is nitrogen, and flow is about 1-3L/min, adopts electric tube furnace heating, and the temperature of regenerating furnace respectivelyBe about 100 DEG C, 150 DEG C, 180 DEG C, 250 DEG C and 350 DEG C, reaction required time be about respectively 90min, 45min, 20min,10min and 5min left and right, after solid product decomposes, the process of liberating nitrogen oxide completes substantially, when wherein temperature is higher than 180 DEG C,Aluminium chloride will gasify, and need condensation to reclaim solid aluminum chloride. Again to aluminium chloride regenerating furnace import respectively content be about 1%, 10%,15% and 30% hydrogen chloride gas, gas-solid contact time is about 1s-3s, and the temperature of regenerating furnace is about 90 DEG C-110 DEG C, anti-Between seasonable, be respectively about 220min, 150min, 120min and 90min left and right, make the aluminium chloride containing in solid productBe converted into aluminium chloride with aluminium hydroxide etc. When the chlorine hydride gas concentration importing to regenerating furnace is about 15%, the temperature of regenerating furnace is dividedWhile not being about 30 DEG C, 150 DEG C, 250 DEG C and 350 DEG C, the reaction time is respectively 200min, 1200min, 100min and 90min, the Substance Transformation such as aluminium chloride and aluminium hydroxide containing in solid product is for aluminium chloride when the left and right.
Embodiment 2: in above-described embodiment 1, the heating-up temperature of regenerating furnace is 180 DEG C, the reaction time is about 20min left and right,After after solid product decomposes, the process of liberating nitrogen oxide completes substantially, in the time that regenerating furnace is cooled to normal temperature, then regenerate to aluminium chlorideStove imports respectively content and is about 5%, 15% and 36% the about 50mL of hydrochloric acid, and solid product is immersed in hydrochloric acid, then to chlorinationAluminium regenerating furnace imports content and is about 15% hydrogen chloride gas, keeps the temperature of regenerating furnace to be about 98 DEG C, and the reaction time is respectively approximately60min, 40min and 30min left and right, the aluminium chloride and the aluminium hydroxide etc. that in solid product, contain are converted into aluminium chloride. ItsHis condition is with example 1.
Embodiment 3: a kind of described denitration uses the regenerating furnace of aluminium chloride as the device schematic diagram of aluminum chloride solids particle gasification furnaceAs shown in Figure 2. The solid aluminum chloride that embodiment 1 regenerating furnace is made heats in regenerating furnace, and heating-up temperature is about 180 DEG C-210 DEG C, cooler is tubular type, and diameter is Φ 40mm, long for 1000mm, naturally cooling, cooling rear gas outlet temperatureBe about 40 DEG C-80 DEG C (specifically can determine according to gas-solid reaction tower reaction temperature), regenerating furnace protective gas is nitrogen, carrier gasAlso be nitrogen, gas-solid reaction tower tower diameter is Φ 60mm, reacts effective contact height and is about 1000mm, void tower, composition of tower shell materialFor 316L stainless steel. The concentration of nitrogen oxide in air-flow (nitric oxide is about 90%) is 500ppm, and oxygen is about 8% (bodyLong-pending), carbon dioxide approximately 10% (volume), moisture is about 10% (volume), and all the other are nitrogen. Reaction temperature is respectively20 DEG C, 50 DEG C, 80 DEG C, 120 DEG C and 180 DEG C, air-flow bottom in and top out in reaction tower, aluminum chloride solids particle upper entering and lower leaving, gasGu be about 3s-5s-time of contact, the mol ratio of aluminium chloride and nitrogen oxide is about 3: 1. Experimental result is as shown in table 1.
Table 1
Should be noted that above embodiment is only for illustrating technical scheme of the present invention, protection scope of the present invention is not limited to this.For a person skilled in the art, within the spirit and principles in the present invention all, the technical scheme that each embodiment is recordedModify, or part technical characterictic is wherein carried out to any replacement, amendment, changes and improvements etc. of being equal to, all should compriseWithin protection scope of the present invention.

Claims (10)

1. a renovation process for aluminium chloride for denitration, is characterized in that aluminum chloride solids particle and air-flow in gas-solid reaction towerIn nitrogen oxide generation chemical reaction and the solid product that generates imports aluminium chloride regenerating furnace, in atmosphere of inert gases or vacuumBe heated to uniform temperature, discharge absorbed nitrogen oxide, make solid product be converted into aluminium chloride, then to aluminium chloride regenerating furnaceImport hydrogen chloride gas, make the Substance Transformation such as aluminium chloride and the aluminium hydroxide aluminium chloride that contains in solid product, thereby reachThe object of regeneration.
2. method according to claim 1, it is characterized in that described aluminium chloride regenerating furnace adopt order to criticize to feed intake reactor orThe gas-solid contact reactor of continuous dosing, comprises fixed bed, ebullated bed, thermopnore, recirculating fluidized bed or moving-burden bed reactor.
3. method according to claim 1 and 2, is characterized in that described aluminium chloride regenerating furnace is at a little higher than normal pressure or normal pressureOr operate under negative pressure, the heating-up temperature that discharges absorbed nitrogen oxide under normal pressure is more than 100 DEG C.
4. method according to claim 1, after the nitrogen oxide in solid product all discharges, can be to aluminium chloride regenerating furnaceInside add after concentrated hydrochloric acid, then import hydrogen chloride gas, described concentrated hydrochloric acid concentration is more than 5%.
5. method according to claim 1, is characterized in that the described concentration (body to regenerating furnace importing hydrogen chloride gasLong-pending ratio) be more than 0.05%.
6. method according to claim 1, is characterized in that described aluminium chloride regenerating furnace can be used as preparation denitration aluminium chlorideThe gasification furnace of solid particle, heating-up temperature scope is more than 120 DEG C.
7. the fixed bed device of aluminium chloride renovation process for a kind of denitration according to claim 1 and 2, described in it is characterized in thatRegenerating furnace be provided with inert gas import (or hydrogen chloride gas import), be provided with on the top of body of heater solid product add entrance andNitrogen oxide outlet (or vacuum orifice), bottom is provided with access hole.
8. use the regenerating furnace of aluminium chloride as aluminum chloride solids particle gas according to a kind of described denitration described in claim 1 or 6Change the device of stove, it is characterized in that the regenerating furnace of described device is provided with inert gas import (or hydrogen chloride gas import),The top of body of heater is provided with solid product and adds entrance and oxides of nitrogen gas outlet (or vacuum orifice), and bottom is provided with access hole,Described regenerating furnace top is also provided with tube connector and is communicated with cooler, is also provided with carrier gas inlet on tube connector, and described is coolingDevice is communicated with gas-solid reaction tower by aluminum chloride solids particle discharge pipe, and described gas-solid reaction tower is provided with processed gasGas vent after import and purification, described gas-solid reaction tower bottom is also provided with the rear solid particle outlet of reaction.
9. method according to claim 1, is characterized in that described gas-solid reaction tower adopts chemical engineering unit operation conventionalFixed bed, moving bed, ebullated bed, fluid bed or recirculating fluidized bed gas-liquid-solid reactor.
10. according to the method described in claim 1 or 9, it is characterized in that the range of reaction temperature in described gas-solid reaction towerIt is 20 DEG C-180 DEG C.
CN201610021193.8A 2016-01-06 2016-01-06 Regeneration method of aluminum chloride for denitration Pending CN105582802A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106000079A (en) * 2015-07-02 2016-10-12 黄立维 Method and device for removing nitrogen oxides from airflow

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106000079A (en) * 2015-07-02 2016-10-12 黄立维 Method and device for removing nitrogen oxides from airflow
CN106000079B (en) * 2015-07-02 2021-05-14 黄立维 Method for removing nitric oxide from gas flow

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Application publication date: 20160518