CN108499309A - A kind of industrial smoke dioxin predecessor remover - Google Patents
A kind of industrial smoke dioxin predecessor remover Download PDFInfo
- Publication number
- CN108499309A CN108499309A CN201810315564.2A CN201810315564A CN108499309A CN 108499309 A CN108499309 A CN 108499309A CN 201810315564 A CN201810315564 A CN 201810315564A CN 108499309 A CN108499309 A CN 108499309A
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- China
- Prior art keywords
- activated carbon
- dioxin
- zeolite
- remover
- predecessor
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Classifications
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/165—Natural alumino-silicates, e.g. zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
- B01D2257/2064—Chlorine
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a kind of industrial smoke dioxin predecessor remover, the remover is mixed by following component：Activated carbon, zeolite, trona and sodium metasilicate.Activated carbon, zeolite are used to carry out the absorption of dioxin predecessor, meanwhile, trona then is used to improve the absorption property of activated carbon and zeolite, reduces the heat storage performance of activated carbon, improves the flashing temperature of activated carbon；Sodium metasilicate is used for the catalysis in inhibitory activity charcoal dioxin reactions of formation.Dioxin predecessor removers are constituted using activated carbon, zeolite, trona and sodium metasilicate, can quickly, at high speed from source prevent from generating dioxin.
Description
Technical field
The present invention relates to the technical field of industrial waste gas processing more particularly to a kind of industrial smoke Zhong dioxin predecessors
Remover.
Background technology
Bioxin is often referred to the plane arene compounds that there is the chlorine more than one group of similar structure and physicochemical property to replace, and belongs to
The oxygen-containing thrcylic aromatic hydrocarbon class compound of chloro, including the one-to-one bioxin of chloro dibenzo more than 75 kinds and chloro dibenzo more than 135 kinds
Furosemide feeding is abbreviated as PCDD/Fs.The most sufficient You Du bioxin of research be 2,3,7,8 be substituted by a chlorine atom both 17
Kind homologue isomer monomer (congenor), wherein 2,3,7,8- tetrachloro dibenzo-are to-bioxin (2,3,7,8 one TCDD)
It is all strongest bioxin monomers of known compound Poisoning (oral LD is only 1ug/kg by batheroom scale), and also pole at present
Including strong carcinogenicity (rat liver cancer dosage is caused to press 10 μ g/g of batheroom scale) and the environmental endocrine disrupting effect of very low dose
A variety of toxic effects.This substance is burnt and various industrial by-products neither artificially producing and without any purposes
Object.
The removal of Dui bioxin at present, there are commonly several methods：1, using smoke eliminator.Hydrofilter can have
Effect ground removing bioxin, main reason is that the water in hydrofilter has been taken away in flue gas and entrained to be adsorbed with bioxin
Small fly ash granule.2, activated carbon adsorption.Activated carbon is due to larger specific surface area, so adsorption capacity is stronger, no
But energy Xi Fu dioxins materials, moreover it is possible to adsorb NOX, SO2 and heavy metal and its compound.3, it is catalytically decomposed.Some catalyst,
As the oxide of V, Ti and W can be with selective catalytic reduction (SCR) bioxin at 300~400 DEG C.4, it is chemically treated.It can be in cigarette
NH3 is sprayed into gas to control the generation of predecessor or spray into CaO to absorb HCl, both methods has had been found sizable
Remove bioxin ability.5, flue gas chilling technique.It burns stove tail flue gas temperature and is generally 200~300 DEG C of , bioxin at 300 DEG C
The rate highest that left and right is formed, can to skip the humidity province that bioxin easily generates if cooled down rapidly to flue-gas temperature
Greatly reduce the formation of bioxin.6, electron beam irradiates.Using electron beam by flue gas air and aquatic Viability oxygen etc. easily
Reactive materials, and then destroy the chemical constitution of bioxin.
As patent application 201410207703.1 discloses a kind of preparation method of special active carbon for adsorbing dioxin.This hair
Phenolic resin is pre-oxidized, is carbonized by bright method, obtains carbon precursor, it is mixed with petroleum coke, polyethylene glycol, potassium hydroxide,
Wherein alkali carbon ratio is 1-6, is heated to 750-820 DEG C with the heating rate of 10-30 DEG C/min, activates 0.5-1.0 hours, cooling dry
The dry activated carbon for obtaining high-specific surface area, can efficient removal bioxin, realize Refuse Incineration Process bioxin removal rate 92% with
On, dioxin in flue gas concentration after removal<0.1ngTEQ/Nm3 has the advantages that preparation is simple, processing step is few, yield is high.
However, the special-purpose activated charcoal is the making for carrying out activated carbon using phenolic resin, complex process, material is more；Its
Secondary, activated carbon adsorption carrys out Xi Fu bioxin merely by suction-operated, and suction-operated is limited, the removal effect of Dui bioxin by
To the limitation of activated carbon performance itself, and it is of high cost；Again, simple activity charcoal storage when or when in use, because of its accumulation of heat
Effect causes activated carbon ignition point (i.e. flash-point) attenuating, it is easy to because hair such as catches fire, explodes at the danger.
Invention content
Shortcoming present in view of the above technology, the present invention provide a kind of industrial smoke dioxin predecessor removal
Agent, which Dui bioxin can be removed at low cost, and removal effect is apparent, and speed is fast, efficient, safety
By force.
It is a further object to provide a kind of industrial smoke dioxin predecessor remover, which utilizes
The combinations such as activated carbon, zeolite, organically mix, and can rapidly absorb removal dioxin predecessor, effect is ideal, convenient for answering
Environment is removed for various bioxin.
To achieve the above object, the invention is realized in this way.
A kind of industrial smoke dioxin predecessor remover, it is characterised in that remover is mixed by following component：
Activated carbon, zeolite, trona and sodium metasilicate.Activated carbon and zeolite are used to carry out the absorption of dioxin predecessor, meanwhile, naturally
Alkali is used to improve the absorption property of activated carbon and zeolite, reduces the heat storage performance of activated carbon, improves the flashing temperature of activated carbon；Silicon
Sour sodium is used for the catalysis in inhibitory activity charcoal dioxin reactions of formation.Utilize activated carbon, zeolite, trona and silicic acid
Sodium constitutes dioxin predecessor removers, can quickly, at high speed from source prevent from generating dioxin.
Further, the dosage of the component is according to weight ratio：
Further, the activated carbon particles diameter is 20 μm.
Further, the zeolite is artificial synthetic zeolite.
Further, the trona is evaporite mineral, need not use the pure bases product after processing.Trona
In lime have the function of that auxiliary decomposes bioxin, therefore there is better effect using trona, and it is at low cost.
Above-mentioned component, bound zeolite on the basis of existing activated carbon increase absorbent properties, can preferably absorb Er Evil
English class predecessor, removal effect is more preferable, more rapidly.
The remover that the present invention is realized, is combined using activated carbon, zeolite, trona and sodium metasilicate, is given full play to
The absorption property of activated carbon, zeolite Dui bioxin can be removed at low cost, and removal effect is apparent, and speed is fast, efficiency
It is high.
Moreover, the remover can rapidly absorb removal dioxin predecessor using combinations such as activated carbon, zeolites,
Effect is ideal, and environment is removed convenient for being applied to various bioxin.
Specific implementation mode
In order to more clearly state the present invention, the present invention is further described below.
The industrial smoke dioxin predecessor remover that the present invention is realized, is mainly mixed by following component：
Activated carbon, zeolite, trona and sodium metasilicate.Activated carbon and zeolite are used to carry out the absorption of dioxin predecessor, meanwhile, naturally
Alkali then is used to improve the absorption property of activated carbon and zeolite, reduces the heat storage performance of activated carbon, improves the flashing temperature of activated carbon；
Sodium metasilicate is used for the catalysis in inhibitory activity charcoal dioxin reactions of formation.Utilize activated carbon, zeolite, trona and silicon
Sour sodium constitutes dioxin predecessor removers, can quickly, at high speed from source prevent from generating dioxin.
The dosage of the component is according to weight ratio：
The activated carbon particles diameter is 20 μm.
The zeolite is artificial synthetic zeolite.
The trona is evaporite mineral, need not use the pure bases product after processing.Stone in trona
Ash has the function of that auxiliary decomposes bioxin, therefore has better effect using trona, and at low cost.
Above-mentioned component, bound zeolite on the basis of existing activated carbon increase absorbent properties, and utilize trona and silicic acid
The booster action of sodium can preferably absorb dioxin predecessor, and removal effect is more preferable, more rapidly.
Embodiment one.
At normal temperatures, the Powdered Activated Carbon that particle diameter is 20 μm is immersed in the sodium metasilicate water after 4 parts of sodium metasilicate are dissolved in water
In solution, evaporable water while stirring is dried activated carbon after evaporable water.
According to parts by weight, 10 parts of the powdery zeolite that 26 parts of the activated carbon of sodium metasilicate will be added, particle diameter is 20 μm, and
60 parts of the powder trona that particle diameter is 20 μm is uniformly mixed.
Embodiment two.
At normal temperatures, according to parts by weight then 60 parts of 10 parts of zeolite, trona crushing are added and add 4 parts of sodium metasilicate
30 parts of activated carbon, be uniformly mixed.
Embodiment three.
At normal temperatures, the Powdered Activated Carbon that particle diameter is 20 μm is immersed in the sodium metasilicate water after 2 parts of sodium metasilicate are dissolved in water
In solution, evaporable water while stirring is dried activated carbon after evaporable water.
According to parts by weight, 5 parts of the powdery zeolite that 20 parts of the activated carbon of sodium metasilicate will be added, particle diameter is 20 μm, and
50 parts of the powder trona that particle diameter is 20 μm is uniformly mixed.
Example IV.
At normal temperatures, according to parts by weight then 80 parts of 15 parts of zeolite, trona crushing are added and add 8 parts of sodium metasilicate
30 parts of activated carbon, be uniformly mixed.
Embodiment five.
At normal temperatures, the Powdered Activated Carbon that particle diameter is 20 μm is immersed in the sodium metasilicate water after 6 parts of sodium metasilicate are dissolved in water
In solution, evaporable water while stirring is dried activated carbon after evaporable water.
According to parts by weight, 12 parts of the powdery zeolite that 28 parts of the activated carbon of sodium metasilicate will be added, particle diameter is 20 μm, and
70 parts of the powder trona that particle diameter is 20 μm is uniformly mixed.
Embodiment six.
At normal temperatures, according to parts by weight then 65 parts of 8 parts of zeolite, trona crushing are added and add 5 parts of sodium metasilicate
24 parts of activated carbon, be uniformly mixed.
The remover that the present invention is realized as a result, is combined using activated carbon, zeolite, trona and sodium metasilicate, in silicon
On the basis of sour sodium and trona Dui dioxin predecessors removal booster action, the adsorptivity of activated carbon, zeolite is given full play to
Can, it Dui bioxin can be removed at low cost, and removal effect is apparent, speed is fast, efficient.
Moreover, the remover can rapidly absorb removal dioxin predecessor using combinations such as activated carbon, zeolites,
Effect is ideal, and environment is removed convenient for being applied to various bioxin.
Disclosed above is only several specific embodiments of the present invention, but the present invention is not limited to this, any ability
What the technical staff in domain can think variation should all fall into protection scope of the present invention.
Claims (5)
1. a kind of industrial smoke dioxin predecessor remover, it is characterised in that remover is mixed by following component：It is living
Property charcoal, zeolite, trona and sodium metasilicate.
2. industrial smoke dioxin predecessor remover according to claim 1, it is characterised in that industrial smoke Er Evil
English class predecessor remover, it is characterised in that the dosage of the component is according to weight ratio：
3. industrial smoke dioxin predecessor remover according to claim 2, it is characterised in that the activated carbon grain
Sub- diameter is 20 μm.
4. industrial smoke dioxin predecessor remover according to claim 2, it is characterised in that the zeolite is behaved
Work synthetic zeolite.
5. industrial smoke dioxin predecessor remover according to claim 2, it is characterised in that the trona is
Evaporite mineral.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476805 | 2017-12-29 | ||
| CN2017114768053 | 2017-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108499309A true CN108499309A (en) | 2018-09-07 |
Family
ID=63381312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810315564.2A Pending CN108499309A (en) | 2017-12-29 | 2018-04-10 | A kind of industrial smoke dioxin predecessor remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108499309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773887A (en) * | 2020-06-12 | 2020-10-16 | 福建通海镍业科技有限公司 | Method for effectively removing dioxin in flue gas of sintering furnace |
| CN111821942A (en) * | 2020-06-28 | 2020-10-27 | 瀚蓝绿电固废处理(佛山)有限公司 | High-efficiency dioxin adsorbent for waste incineration and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62216911A (en) * | 1986-03-17 | 1987-09-24 | Wako Pure Chem Ind Ltd | Activated carbon-containing silica gel, its production, and analytical method using said gel as packing material of cleanup column |
| CN1294531A (en) * | 1999-02-18 | 2001-05-09 | 福谷泰雄 | Purificating agent for flue gas and incinerated ash and purificating method using same |
| CN103994457A (en) * | 2014-05-13 | 2014-08-20 | 桂林洁宇环保科技有限责任公司 | Flue gas cleaning device with flue gas quencher |
| CN104837964A (en) * | 2012-05-11 | 2015-08-12 | 谐和能源有限责任公司 | Systems and methods for producing engineered fuel feedstocks with reduced chlorine content |
| WO2016193429A1 (en) * | 2015-06-03 | 2016-12-08 | Solvay Sa | Process for treating a gas contaminated by metals or organics compounds using a calcium-phosphate reactant comprising apatite |
-
2018
- 2018-04-10 CN CN201810315564.2A patent/CN108499309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62216911A (en) * | 1986-03-17 | 1987-09-24 | Wako Pure Chem Ind Ltd | Activated carbon-containing silica gel, its production, and analytical method using said gel as packing material of cleanup column |
| CN1294531A (en) * | 1999-02-18 | 2001-05-09 | 福谷泰雄 | Purificating agent for flue gas and incinerated ash and purificating method using same |
| CN104837964A (en) * | 2012-05-11 | 2015-08-12 | 谐和能源有限责任公司 | Systems and methods for producing engineered fuel feedstocks with reduced chlorine content |
| CN103994457A (en) * | 2014-05-13 | 2014-08-20 | 桂林洁宇环保科技有限责任公司 | Flue gas cleaning device with flue gas quencher |
| WO2016193429A1 (en) * | 2015-06-03 | 2016-12-08 | Solvay Sa | Process for treating a gas contaminated by metals or organics compounds using a calcium-phosphate reactant comprising apatite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773887A (en) * | 2020-06-12 | 2020-10-16 | 福建通海镍业科技有限公司 | Method for effectively removing dioxin in flue gas of sintering furnace |
| CN111821942A (en) * | 2020-06-28 | 2020-10-27 | 瀚蓝绿电固废处理(佛山)有限公司 | High-efficiency dioxin adsorbent for waste incineration and preparation method and application thereof |
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Application publication date: 20180907 |
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