CN106693933A - NOx adsorbent, preparation method and application thereof - Google Patents
NOx adsorbent, preparation method and application thereof Download PDFInfo
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- CN106693933A CN106693933A CN201611093285.3A CN201611093285A CN106693933A CN 106693933 A CN106693933 A CN 106693933A CN 201611093285 A CN201611093285 A CN 201611093285A CN 106693933 A CN106693933 A CN 106693933A
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- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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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
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- 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
- B01J20/12—Naturally occurring clays or bleaching earth
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- 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
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- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
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- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a NOx adsorbent, a preparation method and application thereof. The NOx adsorbent consists of the following raw materials by weight: 26-34 parts of kaolin, 9-17 parts of gallic acid, 5-13 parts of peroxidase, and 1-5 parts of cerium acetylacetonate. According to the invention, kaolin and cerium acetylacetonate are subjected to mixed grinding, gallic acid and peroxidase are utilized for treatment and ultrasonication so as to obtain the adsorbent, and the adsorbent has higher mechanical strength, the service life of the adsorbent is prolonged, and the replacement frequency is reduced. The adsorbent has high treatment efficiency on high concentration NOx, and also has the advantages of fast purification speed, good treatment effect, large adsorption capacity and long replacement cycle, etc. The adsorbent provided by the invention has the characteristics of no toxicity to human, no corrosion, stable performance, simple operation, no need of special equipment, and no secondary pollution in the treatment process. The preparation process is simple, easy for operation, low in cost, efficient and environment-friendly, thus being convenient for industrial production.
Description
Technical field
The present invention relates to technical field of absorbent, specifically a kind of NOxAdsorbent and its preparation method and application.
Background technology
Nitrogen oxides (NOx) species is a lot, common including nitrous oxide (N2O), nitric oxide (NO), nitrogen dioxide
(NO2), nitrogen trioxide (N2O3), dinitrogen tetroxide (N2O4) and dinitrogen pentoxide (N2O5), also nitric oxide dimerization in addition
Body (N2O2), Azide nitrosyl (N4O), nitrogen peroxide (NO3), but mainly NO and NO2, they are common atmosphere pollution
Thing.Current industrial furnace is to NOxAdministering method based on SCR, the method investment, operation and maintenance cost
It is higher, it is adaptable to atm number, the furnace flue gas NO of continuous dischargexAdminister.And for intermittent, higher concentration NOxImprovement, use
The feasibility of the method is not high, and investing the lower-cost Dry Adsorption technique of small, stable, maintenance operation, to embody its excellent
Gesture.Kaolin is and other various raw material complex roles with identical effect, simple kaolin absorption in the prior art
Though Deng physical adsorption process to NOxPurification efficiency it is very low.
The content of the invention
It is an object of the invention to provide a kind of purification speed is fast, high treating effect, adsorption capacity be big, the replacement cycle is long
NOxAdsorbent and its preparation method and application, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of NOxAdsorbent, is made up of the following raw material according to weight portion：Kaolin 26-34 parts, gallic acid 9-17
Part, peroxidase 5-13 parts, 1-5 parts of acetylacetone,2,4-pentanedione cerium.
As further scheme of the invention：The NOxAdsorbent, is made up of the following raw material according to weight portion：Kaolinite
Native 28-32 parts, gallic acid 11-15 parts, peroxidase 7-11 parts, 2-4 parts of acetylacetone,2,4-pentanedione cerium.
As further scheme of the invention：The NOxAdsorbent, is made up of the following raw material according to weight portion：Kaolinite
30 parts of soil, 13 parts of gallic acid, peroxidase 9 part, 3 parts of acetylacetone,2,4-pentanedione cerium.
Another object of the present invention is to provide a kind of NOxThe preparation method of adsorbent, comprises the steps of：
1) ethanol of 3.2 times of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid with
The deionized water mixing of 8.3 times of its quality, is obtained gallic acid solution；
2) by kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, gallic acid solution is added, is heated to 88 DEG C and in the temperature
Lower sealing stir process 86min, is subsequently adding Peroxidase Solution, is cooled to 66 DEG C and at such a temperature stir process
52min, is then down to 60 DEG C and at such a temperature ultrasonically treated 33min, and ultrasonic power is 1000W, then in 98-100 DEG C of temperature
Then the lower stirring of degree calcines 3.2h in 430 DEG C of Muffle furnace and obtains final product adsorbent to dry.
Another object of the present invention is to provide the adsorbent in NOxApplication in treatment.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is processed using gallic acid, peroxidase, surpassed to kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding
The obtained adsorbent of sound effect, can make adsorbent have mechanical strength higher, can extend the service life of adsorbent, reduce
Replacement frequency.NO of the adsorbent to high concentrationxIt is respectively provided with treatment effeciency very high.Under identical experiment condition, the absorption
Agent is to NOxRemoval effect be much better than existing adsorbent, the adsorbent also has purification speed fast, high treating effect, suction in addition
The advantage such as attached capacity is big, the replacement cycle is long., to people's nonhazardous, non-corrosiveness, stable performance is simple to operate, without spy for the present invention
Different equipment, processing speed is fast, and treatment effeciency is high, effect is preferable, and other harmful substances, Bu Huizao will not be introduced in processing procedure
Into secondary pollution.Preparation process is simple of the present invention, it is easy to operate, low cost, high-efficiency environment friendly is easy to industrialized production.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of NOxAdsorbent, is made up of the following raw material according to weight portion：26 parts of kaolin, do not have
9 parts of gallate-based, 5 parts of peroxidase, 1 part of acetylacetone,2,4-pentanedione cerium.
3.2 times of ethanol of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid and its
The deionized water mixing that 8.3 times of quality, is obtained gallic acid solution.Kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, addition are not had
Infanticide acid solution, is heated to 88 DEG C and seals stir process 86min at such a temperature, is subsequently adding Peroxidase Solution, drops
Temperature to 66 DEG C and at such a temperature stir process 52min, is then down to 60 DEG C and at such a temperature ultrasonically treated 33min, ultrasonic
Power is 1000W, then is stirred at a temperature of 98 DEG C to dry, 3.2h is then calcined in 430 DEG C of Muffle furnace and obtains final product adsorbent.
Embodiment 2
In the embodiment of the present invention, a kind of NOxAdsorbent, is made up of the following raw material according to weight portion：34 parts of kaolin, do not have
17 parts of gallate-based, 13 parts of peroxidase, 5 parts of acetylacetone,2,4-pentanedione cerium.
3.2 times of ethanol of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid and its
The deionized water mixing that 8.3 times of quality, is obtained gallic acid solution.Kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, addition are not had
Infanticide acid solution, is heated to 88 DEG C and seals stir process 86min at such a temperature, is subsequently adding Peroxidase Solution, drops
Temperature to 66 DEG C and at such a temperature stir process 52min, is then down to 60 DEG C and at such a temperature ultrasonically treated 33min, ultrasonic
Power is 1000W, then is stirred at a temperature of 100 DEG C to dry, 3.2h is then calcined in 430 DEG C of Muffle furnace and obtains final product absorption
Agent.
Embodiment 3
In the embodiment of the present invention, a kind of NOxAdsorbent, is made up of the following raw material according to weight portion：28 parts of kaolin, do not have
11 parts of gallate-based, 7 parts of peroxidase, 2 parts of acetylacetone,2,4-pentanedione cerium.
3.2 times of ethanol of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid and its
The deionized water mixing that 8.3 times of quality, is obtained gallic acid solution.Kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, addition are not had
Infanticide acid solution, is heated to 88 DEG C and seals stir process 86min at such a temperature, is subsequently adding Peroxidase Solution, drops
Temperature to 66 DEG C and at such a temperature stir process 52min, is then down to 60 DEG C and at such a temperature ultrasonically treated 33min, ultrasonic
Power is 1000W, then is stirred at a temperature of 99 DEG C to dry, 3.2h is then calcined in 430 DEG C of Muffle furnace and obtains final product adsorbent.
Embodiment 4
In the embodiment of the present invention, a kind of NOxAdsorbent, is made up of the following raw material according to weight portion：32 parts of kaolin, do not have
15 parts of gallate-based, 11 parts of peroxidase, 4 parts of acetylacetone,2,4-pentanedione cerium.
3.2 times of ethanol of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid and its
The deionized water mixing that 8.3 times of quality, is obtained gallic acid solution.Kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, addition are not had
Infanticide acid solution, is heated to 88 DEG C and seals stir process 86min at such a temperature, is subsequently adding Peroxidase Solution, drops
Temperature to 66 DEG C and at such a temperature stir process 52min, is then down to 60 DEG C and at such a temperature ultrasonically treated 33min, ultrasonic
Power is 1000W, then is stirred at a temperature of 99 DEG C to dry, 3.2h is then calcined in 430 DEG C of Muffle furnace and obtains final product adsorbent.
Embodiment 5
In the embodiment of the present invention, a kind of NOxAdsorbent, is made up of the following raw material according to weight portion：30 parts of kaolin, do not have
13 parts of gallate-based, peroxidase 9 part, 3 parts of acetylacetone,2,4-pentanedione cerium.
3.2 times of ethanol of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid and its
The deionized water mixing that 8.3 times of quality, is obtained gallic acid solution.Kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, addition are not had
Infanticide acid solution, is heated to 88 DEG C and seals stir process 86min at such a temperature, is subsequently adding Peroxidase Solution, drops
Temperature to 66 DEG C and at such a temperature stir process 52min, is then down to 60 DEG C and at such a temperature ultrasonically treated 33min, ultrasonic
Power is 1000W, then is stirred at a temperature of 99 DEG C to dry, 3.2h is then calcined in 430 DEG C of Muffle furnace and obtains final product adsorbent.
Comparative example 1
In addition to gallic acid is not contained, its material content and preparation process are consistent with embodiment 5.
Comparative example 2
In addition to acetylacetone,2,4-pentanedione cerium is not contained, its material content and preparation process are consistent with embodiment 5.
Comparative example 3
In addition to gallic acid and acetylacetone,2,4-pentanedione cerium is not contained, its material content and preparation process are consistent with embodiment 5.
Embodiment 6
The present embodiment is that high concentration nitrogen oxide processes example, and affiliated waste gas is silver dissolving generation containing NOxWaste gas, tolerance
In 11000~12000m3/ h fluctuates.
After testing, entrance concentration is in 11000~12000mg/m3In the range of when fluctuating, embodiment of the present invention adsorbent is each
Make its removal efficiency up to more than 99% under the interaction of raw material, be shown in Table 1.And with commercially available adsorbent be contrast.
Table 1 is using the present embodiment adsorbent to NOxRemoval efficiency
| Import NOxConcentration (mg/m3) | Outlet NOxConcentration (mg/m3) | Purifying rate (%) | |
| Embodiment 1 | 11453 | 95.6 | 99.17 |
| Embodiment 2 | 11652 | 88.7 | 99.24 |
| Embodiment 3 | 11853 | 15.5 | 99.87 |
| Embodiment 4 | 11954 | 14.2 | 99.88 |
| Embodiment 5 | 11586 | 10.5 | 99.91 |
| Comparative example 1 | 11472 | 5862.5 | 48.90 |
| Comparative example 2 | 11258 | 1258.6 | 71.94 |
| Comparative example 3 | 11158 | 7966.5 | 37.56 |
| Commercially available adsorbent | 11352 | 895.2 | 92.11 |
Understand, lack gallic acid in the present invention or acetylacetone,2,4-pentanedione cerium is acted on kaolinic treatment, obtained material pair
NOxWaste gas suction-operated is not high, the collective effect of gallic acid or acetylacetone,2,4-pentanedione cerium, and combines the obtained materials such as other raw materials
Material is to NOxWaste gas has significant adsorption effect.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (5)
1. a kind of NOxAdsorbent, it is characterised in that be made up of the following raw material according to weight portion：Kaolin 26-34 parts, nutgall
Sour 9-17 parts, peroxidase 5-13 parts, 1-5 parts of acetylacetone,2,4-pentanedione cerium.
2. NO according to claim 1xAdsorbent, it is characterised in that be made up of the following raw material according to weight portion：Kaolinite
Native 28-32 parts, gallic acid 11-15 parts, peroxidase 7-11 parts, 2-4 parts of acetylacetone,2,4-pentanedione cerium.
3. NO according to claim 1xAdsorbent, it is characterised in that be made up of the following raw material according to weight portion：Kaolinite
30 parts of soil, 13 parts of gallic acid, peroxidase 9 part, 3 parts of acetylacetone,2,4-pentanedione cerium.
4. a kind of NO as described in claim 1-3 is anyxThe preparation method of adsorbent, it is characterised in that by following steps group
Into：
1) ethanol of 3.2 times of peroxidase and its quality is mixed, Peroxidase Solution is obtained；By gallic acid and its matter
The deionized water mixing of 8.3 times of amount, is obtained gallic acid solution；
2) by kaolin and acetylacetone,2,4-pentanedione cerium mixed grinding, gallic acid solution is added, is heated to 88 DEG C and close at such a temperature
Envelope stir process 86min, is subsequently adding Peroxidase Solution, is cooled to 66 DEG C and at such a temperature stir process 52min, so
After be down to 60 DEG C and at such a temperature ultrasonically treated 33min, ultrasonic power is 1000W, then at a temperature of 98-100 DEG C stir
To dry, 3.2h then calcined in 430 DEG C of Muffle furnace and obtains final product adsorbent.
5. the adsorbent as described in claim 1-3 is any is in NOxApplication in treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093285.3A CN106693933A (en) | 2016-12-02 | 2016-12-02 | NOx adsorbent, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093285.3A CN106693933A (en) | 2016-12-02 | 2016-12-02 | NOx adsorbent, preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106693933A true CN106693933A (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611093285.3A Pending CN106693933A (en) | 2016-12-02 | 2016-12-02 | NOx adsorbent, preparation method and application thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020103078A1 (en) * | 2001-01-26 | 2002-08-01 | Zhicheng Hu | SOx trap for enhancing NOx trap performance and methods of making and using the same |
| US20030175192A1 (en) * | 2001-01-26 | 2003-09-18 | Engelhard Corporation | SOx trap for enhancing NOx trap performance and methods of making and using the same |
| CN101987294A (en) * | 2009-08-04 | 2011-03-23 | 深圳市海仕通投资有限公司 | Method for preparing honeycomb ceramic adsorbent material by utilizing attapulgite clay |
| CN102872880A (en) * | 2012-10-17 | 2013-01-16 | 安徽理工大学 | Preparation method of rare earth modified attapulgite catalyst for removing NOx |
| CN103877929A (en) * | 2014-04-09 | 2014-06-25 | 佘洪舟 | Adsorbent for adsorbing NOx and preparation method of adsorbent |
| CN105478134A (en) * | 2014-09-19 | 2016-04-13 | 合众（佛山）化工有限公司 | Applicable load-type catalyst for purifying air at room temperature |
-
2016
- 2016-12-02 CN CN201611093285.3A patent/CN106693933A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020103078A1 (en) * | 2001-01-26 | 2002-08-01 | Zhicheng Hu | SOx trap for enhancing NOx trap performance and methods of making and using the same |
| US20030175192A1 (en) * | 2001-01-26 | 2003-09-18 | Engelhard Corporation | SOx trap for enhancing NOx trap performance and methods of making and using the same |
| CN101987294A (en) * | 2009-08-04 | 2011-03-23 | 深圳市海仕通投资有限公司 | Method for preparing honeycomb ceramic adsorbent material by utilizing attapulgite clay |
| CN102872880A (en) * | 2012-10-17 | 2013-01-16 | 安徽理工大学 | Preparation method of rare earth modified attapulgite catalyst for removing NOx |
| CN103877929A (en) * | 2014-04-09 | 2014-06-25 | 佘洪舟 | Adsorbent for adsorbing NOx and preparation method of adsorbent |
| CN105478134A (en) * | 2014-09-19 | 2016-04-13 | 合众（佛山）化工有限公司 | Applicable load-type catalyst for purifying air at room temperature |
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