CN205867993U - Iron chloride solid particle's preparation facilities for denitration - Google Patents
Iron chloride solid particle's preparation facilities for denitration Download PDFInfo
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- CN205867993U CN205867993U CN201620739206.0U CN201620739206U CN205867993U CN 205867993 U CN205867993 U CN 205867993U CN 201620739206 U CN201620739206 U CN 201620739206U CN 205867993 U CN205867993 U CN 205867993U
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- iron chloride
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- gasification furnace
- solid particle
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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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
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/402—Dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/128—Solid reactants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model provides an iron chloride solid particle's preparation facilities for denitration, belongs to atmosphere pollution control and relevant environmental control tech -nology field, its characterized in that device gasifier as follows mainly, cooler gentleness gu the reaction tower is constituteed, its treatment process is the leading -in gasifier of iron chloride solid starting material, heat to the uniform temperature in inert gas such as nitrogen gas protection atmosphere, make iron chloride gasification becoming gaseous state iron chloride, the powder is then rapidly cooled, make gaseous state iron chloride turn into iron chloride solid particle, then leading -in gas gu the emergence of the nitrogen oxide in reaction tower and air current gas -solid absorption chemical reaction, have get rid of efficient, low running cost, the operation is thus simple, and is suitable for being generalized to use.
Description
Technical field
This utility model relates to the preparation facilities of a kind of denitration iron chloride solid particle, belongs to Air Pollution Control and phase
Close environmental protection technical field.
Background technology
Nitrogen oxides (the NO that mankind's activity producesx) mainly include NO and NO2, wherein accounted for 90% by what fuel combustion produced
Above, next to that industrial process such as nitric acid production, the nitration reaction of chemical pharmaceutical, metal surface and semiconductor processes.NOx is to people
Intoxicating effect, substantial amounts of discharged nitrous oxides is had still to cause the one of the main reasons of atmospheric photochemistry mist and acid rain.China's ring
Border situation publication statistical data shows that in China's Urban Acid Rain, the contribution of nitrogen oxides is being continuously increased, and the acid rain in some places is dirty
Metachromia matter has started to by sulfuric acid type to the ever-increasing compound conversion of nitrate ion (national environmental protection portion: Chinese ring in 2010
Border situation publication).In recent years, country has newly formulated some laws, regulation, to combustion process rows such as nitrogen oxides particularly thermoelectricitys
The nitrogen oxides put has been made stricter control and has reduced discharging regulation.
Usually, the nitrous oxides concentration in the flue gas that thermal power plant etc. produce with combustion of fossil fuel is about hundreds of arriving
Thousand of ppm, wherein 95% are above nitric oxide.Selective catalysis conversion method (SCR) is the master administering flue gas NOx at present at present
Want one of means, but service condition is required strict by catalyst, need ammonia as reducing agent, air-flow contains sulfide and dust
Deng very big to the aging effects of catalyst, the highest to the operating cost of the thermal power plant with coal as fuel especially；Wet method is to use respectively
Plant liquid NOx is absorbed, be the main method of discharged at lower temperature source process, mainly have oxidation absorption process and reducing absorping method two
Kind, wherein, oxidizing process is to use hydrogen peroxide, sodium hypochlorite and potassium permanganate etc. as oxidant, carries out absorption process；Reduction
Method is to use sodium sulfite, sodium sulfide and carbamide etc. as reducing agent, carries out absorption process.But to containing nitric oxide more nitrogen oxygen
Compound, owing to nitric oxide dissolubility in the solution is the least, absorption efficiency is relatively low, and medicament is more expensive, runs cost of use high.
Therefore, research and development improve the purification techniques of Novel flue gas nitrogen oxides, are urgent problems in this skilled industry application.
This utility model designs and provides the preparation facilities of a kind of denitration iron chloride solid particle, for from air-flow
Denitrification.
Summary of the invention
The technical solution of the utility model is: the preparation facilities of a kind of denitration iron chloride solid particle, it is characterized in that by
Gasification furnace, inert gas import, iron chloride solid material add entrance, connecting tube, carrier gas inlet, cooler, iron chloride solid
Solid particle outlet and gasification after gas outlet, processed gas feed, reaction after grain discharge pipe, gas-solid reaction tower, purification
Stove access hole forms.
The top of the gasification furnace of described device is provided with iron chloride solid material and adds entrance and inert gas import, at body of heater
Top be provided with connecting tube and connect with cooler, connecting tube is additionally provided with carrier gas inlet, described cooler passes through chlorination
Ferrum solid particle discharge pipe connects with gas-solid reaction tower, and described gas-solid reaction tower is provided with processed gas feed and purification
Rear gas outlet, described gas-solid reaction tower bottom is additionally provided with solid particle outlet after reaction, described gasification furnace bottom
It is additionally provided with gasification furnace access hole.
The processing technological flow of described device is to first pass through inert gas import to be filled with nitrogen or argon etc. to gasification furnace lazy
Property protective gas, then by iron chloride solid material add entrance add iron chloride solid material, at nitrogen etc. in gasification furnace
Inert gas shielding atmosphere is heated to uniform temperature, makes iron chloride gasification become gaseous state iron chloride, then by connecting tube, quilt
Enter in being arranged on room temperature that in described connecting tube, carrier gas inlet is passed through or taking cooler to less than the noble gas such as nitrogen of room temperature
Row quickly cooling, makes gaseous state iron chloride be quickly converted to iron chloride solid particle, then by iron chloride solid particle discharge pipe
Enter gas-solid reaction tower, in gas-solid reaction tower, the nitrogen oxides in air-flow and iron chloride generation gas-solid adsorption chemical reaction
And absorbed, generating solid product, processed air-flow is entered gas-solid reaction tower tower, the gas after purification by the gas feed that is processed
Flow gas outlet after purifying to discharge, solid particle solid particle outlet after reaction after reaction, thus reach gas purification
Purpose.
The preparation method of a kind of described iron chloride solid particle, is characterized in that iron chloride solid material to import gasification
Stove, is heated to uniform temperature in the inert gas shielding atmosphere such as nitrogen, makes iron chloride gasification distillation become gaseous state iron chloride, so
Rear quickly cooling, makes gaseous state iron chloride be converted into iron chloride solid particle, is then introduced into gas-solid reaction tower, at gas-solid reaction tower
In, and the nitrogen oxides in air-flow and described iron chloride solid particle generation gas-solid adsorption chemical reaction are absorbed, and generate solid
Body product, thus reach gas purification purpose.React in the absorption of gas-solid reaction tower with nitrogen oxides about iron chloride, can join
See another related invention patent application of this utility model applicant.
Noble gas described in the utility model is generally the gas that nitrogen, argon or carbon dioxide etc. do not react with iron chloride
Body, gasification furnace pressure is normal pressure or negative pressure, and under normal pressure, heating temperature range is generally higher than 130 DEG C, and preferred range is 150
DEG C-350 DEG C, heating-up temperature is high, and gasification rate is fast.Under negative pressure, heating-up temperature can be lower, minimum 90 DEG C, specifically can look into iron chloride
Heat of sublimation Mechanical Data.Actual mechanical process, heating-up temperature and speed can regulate according to the requirement of actual iron chloride and control
System, heating-up temperature is high, and gaseous state iron chloride yield is the biggest, and heating can use the heating of heating by electric cooker, heat-conducting medium, Electromagnetic Heating and micro-
The multiple means such as Wave heating, effect is about the same.Coil pipe can be used indirectly to cool down for described cooling and/or inert gas carrier is straight
Connecing the modes such as contact cooling, after cooling, gas flow temperature is generally less than 120 DEG C, preferably 50 DEG C-90 DEG C, chilling temperature can according to gas-
Gu reaction tower interior reaction temperature sets.Heating and cooling related industries technology maturation.Iron chloride solid described in the utility model
Raw material can use technical grade commodity iron chloride solid, generally powder.
Nitrogen oxides described in the utility model includes nitric oxide and nitrogen dioxide, predominantly nitric oxide.Described nitrogen oxygen
The solid product of the gas-solid adsorption chemical reaction of compound and iron chloride is iron chloride and the complex of nitrogen oxides and related salts.
The preparation method of iron chloride solid particle described in the utility model, it is also possible to by production technologies such as dry method iron chloride
Obtain, as iron filings and chlorine reaction obtain gaseous state iron chloride, after hydrated ferric oxide., ferrum oxide and hydrogen chloride gas precursor reactant, obtain gaseous state
Iron chloride, or obtained cooling after gaseous state iron chloride by techniques such as ferrous chloride chlorinations and prepare.
The iron chloride solid particle that gaseous state iron chloride described in the utility model obtains after cooling with subsequently gas-solid
Operation before and after denitrification process is same place science and engineering skill in reaction tower.
With the iron chloride powder directly using commercialization as compared with denitration reaction agent, the utility model has the advantage of:
The iron chloride solid particle obtained after quickly cooling by gaseous state iron chloride, has grain diameter little, grain through minimum up to nanometer
Level, the features such as reactivity is high, and response speed is fast, it is possible to the nitrogen oxides generation gas-solid adsorption chemistry quickly and in air-flow is anti-
Should, make the nitrogen oxides in air-flow be removed, under the same conditions, reaction efficiency more than 30% can be effectively improved, there is throwing
Money cost and operating cost are low, simple to operate, treatment effeciency is high, the big feature for the treatment of capacity, are suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is that the preparation facilities of a kind of denitration iron chloride solid particle used by this utility model embodiment is from air-flow
The schematic flow sheet of denitrification.Wherein: 1 gasification furnace；2 inert gas imports；3 iron chloride solid materials add entrance；4 connect
Pipe；5 carrier gas inlet；6 coolers；7 iron chloride solid particle discharge pipes；8 gas-solid reaction towers；Gas outlet after 9 purifications；10 quilts
Process gas feed；Solid particle outlet after 11 reactions；12 gasification furnace access holes.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described in further detail.
The preparation facilities of a kind of described denitration iron chloride solid particle goes the flow process of denitrification to show from air-flow
It is intended to as shown in Figure 1.The top of the gasification furnace (1) of described device is provided with iron chloride solid material and adds entrance (3) and inertia
Gas feed (2), is provided with connecting tube (4) and connects with cooler (6), connecting tube is additionally provided with carrier gas and enters on the top of body of heater
Mouth (5), described cooler (6) is connected with gas-solid reaction tower (8) by iron chloride solid particle discharge pipe (7), described
Gas-solid reaction tower (8) is provided with gas outlet (9) after processed gas feed (10) and purification, described gas-solid reaction tower
(8) solid particle outlet (11) after bottom is additionally provided with reaction, described gasification furnace (1) bottom is additionally provided with gasification furnace maintenance
Mouth (12).
Processing technological flow is to first pass through inert gas import (2) to be filled with the inertia such as nitrogen or argon guarantor to gasification furnace (1)
Protect gas, then add entrance (3) by iron chloride solid material and add iron chloride solid material, lazy at nitrogen etc. in gasification furnace
Property gas shield atmosphere in be heated to uniform temperature, make iron chloride gasification become gaseous state iron chloride, then by connecting tube (4),
It is arranged on room temperature that the upper carrier gas inlet (5) of connecting tube (4) is passed through or takes cooler to less than the noble gas such as nitrogen of room temperature
(6) quickly cool down in, make gaseous state iron chloride be quickly converted to iron chloride solid particle, then by iron chloride solid particle
Discharge pipe (7) enters gas-solid reaction tower (8), in gas-solid reaction tower (8), and the nitrogen oxides in air-flow and iron chloride generation gas
Though sorption chemical reaction absorbed, generate solid product, processed air-flow by the gas feed that is processed (10) enter gas-solid instead
Ying Tata (8), the gas outlet (9) after purifying of the air-flow after purification discharges, solid particle solid particle after reaction after reaction
Outlet (11), thus reach gas purification purpose.
Embodiment 1: the preparation facilities of a kind of described denitration iron chloride solid particle removes denitrification from air-flow
Schematic flow sheet as shown in Figure 1.The size of gasification furnace is Φ 60mm × 600mm, and gasification furnace uses electric tube furnace heating, gasification
In stove, heating-up temperature is respectively 130 DEG C, 150 DEG C, 210 DEG C, 300 DEG C and 350 DEG C, and the technical grade iron chloride pressed powder of addition is each
500g, mean diameter is about 0.5mm, and cooler is tubular type, a diameter of Φ 40mm, a length of 1000mm, air natural cooling, cooling
Rear gas outlet temperature is about 65 DEG C-70 DEG C, and gasification furnace protective gas is nitrogen, flow about 100mL/min, and carrier gas is also room temperature
Nitrogen, flow about 500mL/min.Gas-solid reaction tower tower diameter is Φ 60mm, reacts effective contact height and is about 1000mm, void tower,
Composition of tower shell material is 316L rustless steel.In air-flow, nitrogen oxides (nitric oxide is about 95%) concentration is 500ppm, oxygen about 8%
(volume, as follows), carbon dioxide about 10%, moisture about 10%, remaining is nitrogen, flow about 2L/min.Gas-solid interior instead
In answering tower, gas temperature is about 60 DEG C-65 DEG C, and in reaction tower, time of contact is about 3-5s.Gas outlet NO after purificationxConcentration is divided
Wei 283ppm, 201ppm, 136ppm, 79ppm and 65ppm.The nitrogen oxides exit concentration recorded continues clearance for maximum
Time numerical value.
Embodiment 2: gasification furnace protective gas be nitrogen flow be 0, gasification furnace is in tiny structure, heating-up temperature in gasification furnace
Being respectively 90 DEG C and 150 DEG C, other conditions are with embodiment 1.Experimental result records gas outlet NO after purificationxConcentration is respectively
315ppm and 220ppm.
Embodiment 3: in gasification furnace, heating-up temperature is about 210 DEG C, cooler uses pipe external fan to force cooling, gas after cooling
Body outlet temperature is about 100 DEG C-120 DEG C, and other conditions are with embodiment 1.Experimental result records gas outlet NO after purificationxConcentration
For 156ppm.
Should be noted that above example is merely to illustrate the technical solution of the utility model, guarantor of the present utility model
The scope of protecting is not limited to this.For a person skilled in the art, all within spirit of the present utility model and principle, to each reality
Execute the technical scheme described in example to modify, or portion of techniques feature therein is carried out any equivalent, revises, become
Change and improvement etc., within should be included in protection domain of the present utility model.
Claims (6)
1. a denitration preparation facilities for iron chloride solid particle, its feature at described device by gasification furnace (1), indifferent gas
Body import (2), iron chloride solid material add entrance (3), connecting tube (4), carrier gas inlet (5), cooler (6), iron chloride solid
Solid after gas outlet (9), processed gas feed (10), reaction after granule discharge pipe (7), the solid reaction tower (8) of gas one, purification
Particle discharge ports (11) and gasification furnace access hole (12) composition, it is solid that the top of wherein said gasification furnace (1) is provided with iron chloride
Body raw material adds entrance (3) and inert gas import (2), is provided with connecting tube (4) on the top of body of heater and connects with cooler (6),
Being additionally provided with carrier gas inlet (5) in connecting tube, described cooler (6) is by iron chloride solid particle discharge pipe (7) and gas one
Gu reaction tower (8) connects, the described solid reaction tower (8) of gas one is provided with gas outlet after processed gas feed (10) and purification
(9), described solid reaction tower (8) bottom of gas one is additionally provided with solid particle outlet (11) after reaction, described gasification furnace (1)
Bottom is additionally provided with gasification furnace access hole (12).
Device the most according to claim 1, it is characterised in that described gasification furnace uses heating by electric cooker, heat-conducting medium to add
Heat, Electromagnetic Heating or microwave heating.
Device the most according to claim 1 and 2, it is characterised in that the heating-up temperature of described gasification furnace is more than 130 DEG C.
Device the most according to claim 1 and 2, it is characterised in that under described gasification furnace negative pressure heating-up temperature 90 DEG C with
On.
Device the most according to claim 1, it is characterised in that described cooler uses the direct contact cooling of gas or Jie
Matter cools down indirectly, and after cooling, gas flow temperature is less than 120 DEG C.
Device the most according to claim 1, its feature is nitrogen or argon or carbon dioxide at described noble gas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015104076752 | 2015-07-08 | ||
| CN201510407675.2A CN105170070A (en) | 2015-07-08 | 2015-07-08 | Denitration and desulfurization ferric chloride solid particles and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205867993U true CN205867993U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407675.2A Pending CN105170070A (en) | 2015-07-08 | 2015-07-08 | Denitration and desulfurization ferric chloride solid particles and preparation method thereof |
| CN201610550029.6A Active CN106000076B (en) | 2015-07-08 | 2016-07-06 | Method for removing nitric oxide from gas flow by using ferric chloride solid particles |
| CN201620739206.0U Expired - Fee Related CN205867993U (en) | 2015-07-08 | 2016-07-06 | Iron chloride solid particle's preparation facilities for denitration |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510407675.2A Pending CN105170070A (en) | 2015-07-08 | 2015-07-08 | Denitration and desulfurization ferric chloride solid particles and preparation method thereof |
| CN201610550029.6A Active CN106000076B (en) | 2015-07-08 | 2016-07-06 | Method for removing nitric oxide from gas flow by using ferric chloride solid particles |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105536501A (en) * | 2016-01-06 | 2016-05-04 | 黄立维 | Regeneration method for ferric chloride for denitration |
| CN108178135A (en) * | 2017-12-25 | 2018-06-19 | 黄华丽 | A kind for the treatment of method and apparatus of denitration solid product |
| CN113578030B (en) * | 2020-04-30 | 2024-01-26 | 黄华丽 | Absorbent slurry for removing mercury in flue gas and preparation and removal methods thereof |
| WO2022135223A1 (en) * | 2020-12-26 | 2022-06-30 | 黄立维 | Device and process for removing nitric oxide in gas flow |
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| NL6812980A (en) * | 1967-09-12 | 1969-03-14 | ||
| CN1038071A (en) * | 1989-04-18 | 1989-12-20 | 轻工业部制盐工业科学研究所 | Waste liquor of ammonia soda plant and bittern are made the method for fiber calcium sulfate |
| CN1228390A (en) * | 1998-03-10 | 1999-09-15 | 陈春余 | Water purifying agent by oxygen polymerization one-step method |
| JP2007160168A (en) * | 2005-12-12 | 2007-06-28 | Toyota Motor Corp | Exhaust gas purifying device |
| CN100582018C (en) * | 2007-02-28 | 2010-01-20 | 天津市聚鑫源水处理技术开发有限公司 | Method for producing solid polymeric ferric chloride using ferrous chloride crystal as raw material |
| CN101602525B (en) * | 2008-06-13 | 2011-06-15 | 西安聚盛医药化工有限公司 | Method for preparing high-purity ferric chloride |
| CN102168176B (en) * | 2011-03-10 | 2012-11-14 | 田文学 | Comprehensive recycling process for valuable metal roasting-cyaniding gold-containing tailing |
| CN103657365A (en) * | 2012-09-24 | 2014-03-26 | 张继惟 | Kiln flue gas purification system based on brown ring reaction |
| CN103041688B (en) * | 2012-12-31 | 2015-07-08 | 青岛大学 | Method for desulfurization and denitrification of fume and coproduction of ammonium sulfate |
| CN103288141B (en) * | 2013-06-04 | 2015-05-20 | 滨州坤宝化工有限责任公司 | Melting chlorination furnace for producing ferric trichloride and production technology thereof |
| CN103288142A (en) * | 2013-06-04 | 2013-09-11 | 滨州坤宝化工有限责任公司 | Production process and production equipment for ferric trichloride |
| CN103495338B (en) * | 2013-08-29 | 2016-06-01 | 广州绿华环保科技有限公司 | A kind of method processing oxynitride in industrial gaseous waste |
| CN104353347A (en) * | 2014-10-11 | 2015-02-18 | 黄立维 | Method and device for simultaneous reduction and oxidation of nitrogen oxides from airflow |
-
2015
- 2015-07-08 CN CN201510407675.2A patent/CN105170070A/en active Pending
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2016
- 2016-07-06 CN CN201610550029.6A patent/CN106000076B/en active Active
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| Publication number | Publication date |
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| CN105170070A (en) | 2015-12-23 |
| CN106000076A (en) | 2016-10-12 |
| CN106000076B (en) | 2022-06-21 |
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