CN104258815A - Adsorbing material for benzene series gas phase elimination and preparation method of adsorbing material - Google Patents
Adsorbing material for benzene series gas phase elimination and preparation method of adsorbing material Download PDFInfo
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- CN104258815A CN104258815A CN201410543110.2A CN201410543110A CN104258815A CN 104258815 A CN104258815 A CN 104258815A CN 201410543110 A CN201410543110 A CN 201410543110A CN 104258815 A CN104258815 A CN 104258815A
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- organic molecule
- active carbon
- sorbing material
- gas phase
- adsorbing material
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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
-
- 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
- B01J20/20—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
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/306—Surface area, e.g. BET-specific surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/311—Porosity, e.g. pore volume
Abstract
The invention provides an adsorbing material for benzene series gas phase elimination and a preparation method of the adsorbing material. The adsorbing material comprises raw material components in parts by weight as follows: 100 parts of activated carbon and 5-200 parts of an organic molecule precursor; the specific surface area of the adsorbing material is in a range of 800-2000 m<2>/g, and the pore volume is in a range of 1.5-3.0 cm<3>/g. The adsorbing material has the advantages as follows: (1) the preparation method of the adsorbing material is simple to operate, the synthetic process is environment-friendly, and the utilization rate of raw materials is high; (2) the raw materials used for preparing the adsorbing material are cheap and easy to obtain, so that the preparation cost of the adsorbing material is reduced, and the adsorbing material is easy to popularize; (3) the prepared adsorbing material can be effectively used for adsorption elimination of a gas-phase benzene series and has the advantages of high benzene series adsorption efficiency and high adsorption capacity; (4) the adsorbing material is easy to recover and can be completely desorbed to be recycled after simple treatment.
Description
Technical field
The invention belongs to benzene homologues gas purification technology for eliminating field, be specifically related to a kind of sorbing material for the elimination of benzene homologues gas phase and preparation method thereof.
Background technology
Aromatic, especially Benzene and Toluene, all belong to important organic compound, no matter is as raw material or serves as solvent, all has extremely important purposes.Along with the development of chemical industry in recent years, be that the product of raw material or intermediate has played extremely important effect in the clothing, food, lodging and transportion--basic necessities of life of people with Benzene and Toluene.But, can not ignore, Benzene and Toluene has the character such as extremely strong, inflammable, hypertoxic, the carcinogenic and mutagenesis of volatility simultaneously, in use can naturally volatilize, visible, if mishandling generation is revealed can cause huge destruction to human body health and ecological environment undoubtedly.
According to statistics, the agricultural chemicals of significant proportion, all containing benzene homologues (benzene, toluene or derivatives thereof), inevitably evaporate in air while desinsection is removed the evil.A lot of devices in people's life are all prepared by the material such as plastics, resin, in the process used, also can volatilize the harmful substances such as a certain amount of ramification of benzene.The modern finishing art work such as paint, the coating used especially overwhelming majority, also containing benzene/methylbenzene, while beautifying household, also brings huge threat to the physical condition of people.
The approach that current solution benzene/methylbenzene pollutes is a lot, generally buries according to the degree different choice absorption revealed, hole, covers, the method such as steam decomposition.But reveal for gas phase, the most effective method adopts sorbing material to adsorb.
At present, sorbing material mostly is modified molecular screen, macromolecule resin, oxide and active carbon etc.Adsorb for benzene as patent CN 101875005 A discloses styrene diethylene benzene copoly mer composite, but this kind of sorbing material needs numerous and diverse preparation technology, and, in preparation process, need the extremely toxic substance such as derivative and furans of nitrile as additive.Patent CN 102274703 A discloses and utilizes discarded activated alumina to carry out benzene adsorption applications, although have the feature of environmental protection, it is very limited to the adsorption efficiency of benzene.
Active carbon is quite favored by everybody due to features such as its cost are low, efficiency is high, reproducible.The commercial activated carbons of existing market supply is of a great variety, and the good cocoanut active charcoal of absorption property, the adsorption capacity of its benzene homologues generally between 100-250mg/g, and faces the cost of great number.And aboundresources, the coal mass active carbon of reconfigurable is faced with the problem of adsorption capacity lower (general <150mg/g).Therefore, how significantly to increase adsorption capacity and the adsorption efficiency of commercial activated carbon by means that are simple, green, environmental protection, there is important actual application value.
Summary of the invention
For the defect that prior art exists, the invention provides a kind of sorbing material for the elimination of benzene homologues gas phase and preparation method thereof, in order to solve the problem.
The technical solution used in the present invention is as follows:
The invention provides a kind of sorbing material eliminated for benzene homologues gas phase, comprise the raw material components of following weight portion:
Active carbon 100 weight portion
Organic molecule presoma 5-200 weight portion;
Wherein, the specific area of described sorbing material is 800-2000m
2/ g, pore volume is 1.5-3.0cm
3/ g.
Preferably, the raw material components of following weight portion is comprised:
Active carbon 100 weight portion
Organic molecule presoma 100 weight portion;
Wherein, the specific area of described sorbing material is 1500m
2/ g, pore volume is 2.0cm
3/ g.
Preferably, described active carbon is have the coal mass active carbon of difformity and particle diameter, active fruit shell carbon, wood activated charcoal or asphalt based active carbon.
Preferably, described organic molecule presoma is one or more in hydrocarbon, aromatic or living beings.
Preferably, described hydrocarbon comprises citric acid, tartaric acid, butanedioic acid, ethanedioic acid, ascorbic acid, sucrose and glucose; Described aromatic comprises catechol, resorcinol and hydroquinones; Described living beings comprise gelatin, Arabic gum, agar and cellulose.
The present invention also provides a kind of preparation method of the sorbing material for the elimination of benzene homologues gas phase, comprises the following steps:
S1, takes the organic molecule presoma of formula ratio, makes it be dissolved in distilled water, obtains the organic molecule dispersion liquid of stable homogeneous;
S2, take the active carbon of formula ratio, then the active carbon taken is immersed completely in the organic molecule dispersion liquid that S1 obtains, organic molecule dispersion liquid is used to carry out brushing process to active carbon, organic molecule dispersion liquid is fully entered in the micropore of active carbon, filter after elapsed time T1, leach active carbon;
S3, carries out drying process to the active carbon that S2 filters out, obtains organic molecule-active carbon compound;
S4, carries out calcination process to organic molecule-active carbon compound that S3 obtains, obtains modified activated carbon, and this modified activated carbon is the sorbing material eliminated for benzene homologues gas phase finally prepared.
Preferably, in S1, the method that organic molecule presoma is dissolved into distilled water is:
Under ultrasonic field effect, organic molecule presoma is fully dissolved in distilled water; Wherein, ultrasonic field power is: 300 watts-3000 watts; Ultrasonic field action time is: 5-60 minute; Or
Stir in a heated condition, organic molecule presoma is fully dissolved in distilled water; Wherein, heating-up temperature is: 30-60 DEG C; Heat time is: 5-60 minute.
Preferably, in S2, after filtering out active carbon, filtrate, as the organic molecule dispersion liquid reclaimed, can reuse 2-10 time.
Preferably, in S1, the mass concentration of organic molecule dispersion liquid is: 1%-50%;
In S2, operating time and the T1 of brushing process are 10-60 minute;
In S3, the temperature of dry process is 50-110 DEG C, and drying time is 6-12 hour;
In S4, sintering temperature is 150-450 DEG C, and calcination times is 5-300 minute.
Preferably, in S1, the mass concentration of organic molecule dispersion liquid is: 10%-30%;
In S2, operating time and the T1 of brushing process are 20-40 minute;
In S3, the temperature of dry process is 80-100 DEG C, and drying time is 8-10 hour;
In S4, sintering temperature is 250-350 DEG C, and calcination times is 20-60 minute.
Sorbing material for the elimination of benzene homologues gas phase provided by the invention and preparation method thereof, has the following advantages:
(1) preparation method of sorbing material is simple to operate, and building-up process is green, and raw material availability is high;
(2) each raw material preparing sorbing material is cheap and easy to get, thus reduces the preparation cost of sorbing material, easily promotes;
(3) absorption that the sorbing material prepared can be effective to gas phase benzene homologues is eliminated, and has the advantage that benzene homologues adsorption efficiency is high and adsorption capacity is large;
(4) sorbing material is easy to reclaim, and gets final product complete desorption through simple process and reuse.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adsorbent equipment of employing when carrying out adsorption test provided by the invention;
Wherein, 1-adsorption tube; 2-contains the reagent bottle of benzene or toluene.
Detailed description of the invention
The invention provides a kind of preparation method of the sorbing material for the elimination of benzene homologues gas phase, comprise the following steps:
S1, takes the organic molecule presoma of formula ratio, makes it be dissolved in distilled water, obtains the organic molecule dispersion liquid of stable homogeneous;
S2, take the active carbon of formula ratio, then the active carbon taken is immersed completely in the organic molecule dispersion liquid that S1 obtains, organic molecule dispersion liquid is used to carry out brushing process to active carbon, organic molecule dispersion liquid is fully entered in the micropore of active carbon, filter after elapsed time T1, leach active carbon;
S3, carries out drying process to the active carbon that S2 filters out, obtains organic molecule-active carbon compound;
S4, carries out calcination process to organic molecule-active carbon compound that S3 obtains, obtains modified activated carbon, and this modified activated carbon is the sorbing material eliminated for benzene homologues gas phase finally prepared.
Adopt above-mentioned preparation method, change concrete technology parameter and the raw material type of preparation, carry out embodiment 1-14 respectively, the concrete technology parameter of embodiment 1-14 and the character of sorbing material for preparing are see table 1 and table 2:
Wherein, in table 1 and table 2, each sorbing material adopts following methods to measure to the adsorption capacity containing benzene homologues:
The adsorbent equipment that adsorption test adopts as shown in Figure 1.
Adsorption test method of operating is:
(1) first weigh after adsorption tube drying, obtain adsorption tube net weight, be designated as m
0;
(2) weigh after sorbing material being loaded adsorption tube, the sorbing material gross weight obtaining adsorption tube and do not adsorb, is designated as m
1;
(3) adsorption tube that sorbing material is housed is arranged on the adsorbent equipment shown in Fig. 1, in reagent bottle 2, splendid attire is containing benzene homologues, then connects gas circuit, makes the gas containing benzene homologues continue through adsorption tube, sample every 10min and use gas chromatograph analysis, drawing breakthrough curve.After materials adsorption upon adsorption is saturated, takes off adsorption tube and weigh, obtain adsorption tube and absorption saturated after sorbing material gross weight, be designated as m
2.
The adsorbance of sorbing material adopts following formulae discovery:
Table 1 sorbing material preparation method embodiment 1-7
Table 2 sorbing material preparation method embodiment 8-14
Comparative example 1
This comparative example, for the Adsorption of sorbing material comparing conventional activated carbon and sorbing material preparation method embodiment 1-7 of the present invention and prepare, the results are shown in Table 3; Wherein, conventional activated carbon is the raw material active carbon used when embodiment 1-7 prepares sorbing material.
Table 3
As can be seen from the above table, by the preparation-obtained sorbing material of method provided by the invention compared with the sorbing material of commercially available identical type, the adsorption capacity of benzene or toluene is significantly improved.
In addition, the sorbing material eliminated for benzene homologues gas phase provided by the invention, for active carbon, due to active carbon be used for benzene homologues absorption time, only enrichment can be played but not eliminating effect, therefore, only needing regularly to carry out purified treatment to active carbon can utilize again, and reclaimer operation is: by active carbon as outdoor ventilation place (have sunshine better) certain hour (>=3 hours).Therefore, there is the advantage being easy to reclaim.
In sum, sorbing material for the elimination of benzene homologues gas phase provided by the invention and preparation method thereof, have the following advantages: the preparation method of (1) sorbing material is simple to operate, building-up process is green, and raw material availability is high; (2) each raw material preparing sorbing material is cheap and easy to get, thus reduces the preparation cost of sorbing material, easily promotes; (3) absorption that the sorbing material prepared can be effective to gas phase benzene homologues is eliminated, and has the advantage that benzene homologues adsorption efficiency is high and adsorption capacity is large; (4) sorbing material is easy to reclaim, and gets final product complete desorption through simple process and reuse.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (10)
1., for the sorbing material that benzene homologues gas phase is eliminated, it is characterized in that, comprise the raw material components of following weight portion:
Active carbon 100 weight portion
Organic molecule presoma 5-200 weight portion;
Wherein, the specific area of described sorbing material is 800-2000m
2/ g, pore volume is 1.5-3.0cm
3/ g.
2. the sorbing material eliminated for benzene homologues gas phase according to claim 1, is characterized in that, comprise the raw material components of following weight portion:
Active carbon 100 weight portion
Organic molecule presoma 100 weight portion;
Wherein, the specific area of described sorbing material is 1500m
2/ g, pore volume is 2.0cm
3/ g.
3. the sorbing material eliminated for benzene homologues gas phase according to claim 1, is characterized in that, described active carbon is have the coal mass active carbon of difformity and particle diameter, active fruit shell carbon, wood activated charcoal or asphalt based active carbon.
4. the sorbing material eliminated for benzene homologues gas phase according to claim 1, it is characterized in that, described organic molecule presoma is one or more in hydrocarbon, aromatic or living beings.
5. the sorbing material eliminated for benzene homologues gas phase according to claim 4, it is characterized in that, described hydrocarbon comprises citric acid, tartaric acid, butanedioic acid, ethanedioic acid, ascorbic acid, sucrose and glucose; Described aromatic comprises catechol, resorcinol and hydroquinones; Described living beings comprise gelatin, Arabic gum, agar and cellulose.
6., for a preparation method for the sorbing material of benzene homologues gas phase elimination, it is characterized in that, comprise the following steps:
S1, takes the organic molecule presoma of formula ratio, makes it be dissolved in distilled water, obtains the organic molecule dispersion liquid of stable homogeneous;
S2, take the active carbon of formula ratio, then the active carbon taken is immersed completely in the organic molecule dispersion liquid that S1 obtains, organic molecule dispersion liquid is used to carry out brushing process to active carbon, organic molecule dispersion liquid is fully entered in the micropore of active carbon, filter after elapsed time T1, leach active carbon;
S3, carries out drying process to the active carbon that S2 filters out, obtains organic molecule-active carbon compound;
S4, carries out calcination process to organic molecule-active carbon compound that S3 obtains, obtains modified activated carbon, and this modified activated carbon is the sorbing material eliminated for benzene homologues gas phase finally prepared.
7. the preparation method of the sorbing material for the elimination of benzene homologues gas phase according to claim 6, it is characterized in that, in S1, the method that organic molecule presoma is dissolved into distilled water is:
Under ultrasonic field effect, organic molecule presoma is fully dissolved in distilled water; Wherein, ultrasonic field power is: 300 watts-3000 watts; Ultrasonic field action time is: 5-60 minute; Or
Stir in a heated condition, organic molecule presoma is fully dissolved in distilled water; Wherein, heating-up temperature is: 30-60 DEG C; Heat time is: 5-60 minute.
8. the preparation method of the sorbing material for the elimination of benzene homologues gas phase according to claim 6, is characterized in that, in S2, after filtering out active carbon, filtrate, as the organic molecule dispersion liquid reclaimed, can reuse 2-10 time.
9. the preparation method of the sorbing material for the elimination of benzene homologues gas phase according to claim 6, it is characterized in that, in S1, the mass concentration of organic molecule dispersion liquid is: 1%-50%;
In S2, operating time and the T1 of brushing process are 10-60 minute;
In S3, the temperature of dry process is 50-110 DEG C, and drying time is 6-12 hour;
In S4, sintering temperature is 150-450 DEG C, and calcination times is 5-300 minute.
10. the preparation method of the sorbing material for the elimination of benzene homologues gas phase according to claim 9, it is characterized in that, in S1, the mass concentration of organic molecule dispersion liquid is: 10%-30%;
In S2, operating time and the T1 of brushing process are 20-40 minute;
In S3, the temperature of dry process is 80-100 DEG C, and drying time is 8-10 hour;
In S4, sintering temperature is 250-350 DEG C, and calcination times is 20-60 minute.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166441A (en) * | 2016-04-28 | 2016-11-30 | 山东宝梵环保科技有限公司 | There is solid air purification smell removal agent and the preparation method of degradation property |
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| KR100512476B1 (en) * | 2003-04-21 | 2005-09-06 | 한국화학연구원 | Active carbon absorbent containing copper, silver and chrome and method for preparing same |
| CN102941065A (en) * | 2012-11-06 | 2013-02-27 | 中国科学院山西煤炭化学研究所 | Carbon-based material adsorbent for removing heavy metals in waste water, its preparation method and application |
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| KR100512476B1 (en) * | 2003-04-21 | 2005-09-06 | 한국화학연구원 | Active carbon absorbent containing copper, silver and chrome and method for preparing same |
| CN102941065A (en) * | 2012-11-06 | 2013-02-27 | 中国科学院山西煤炭化学研究所 | Carbon-based material adsorbent for removing heavy metals in waste water, its preparation method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106166441A (en) * | 2016-04-28 | 2016-11-30 | 山东宝梵环保科技有限公司 | There is solid air purification smell removal agent and the preparation method of degradation property |
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