CN104923035B - Adsorption solution for benzene-methylbenzene-xylene-including waste gas and application thereof - Google Patents
Adsorption solution for benzene-methylbenzene-xylene-including waste gas and application thereof Download PDFInfo
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- CN104923035B CN104923035B CN201510271122.9A CN201510271122A CN104923035B CN 104923035 B CN104923035 B CN 104923035B CN 201510271122 A CN201510271122 A CN 201510271122A CN 104923035 B CN104923035 B CN 104923035B
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Abstract
The invention discloses an adsorption solution for a benzene-methylbenzene-xylene-including waste gas and application thereof. The adsorption solution comprises an emulsion, a surfactant, sodium carboxymethylcellulose and water. According to the adsorption solution for the benzene-methylbenzene-xylene-including waste gas, which is provided by the invention, the emulsion is used as a substance which mainly absorbs an arene waste gas; the adsorption solution for the benzene-methylbenzene-xylene-including waste gas has the characteristics of stable chemical property, no toxicity, no corrosiveness and the like; the secondary pollution cannot be brought while toxic and harmful substances are absorbed. Meanwhile, the absorptivity of the arene waste gas is greatly increased while a waste substance is reused by utilizing recycled freon; the relative volatility of arene can be greatly decreased after the arene is dissolved; the content of benzene, methylbenzene and xylene in the air is decreased to a relatively low extent; a factory and a surrounding environment of the factory are improved.
Description
Technical field
The present invention relates to 3 benzene waste gas process field, particularly a kind of 3 benzene waste gas adsorption liquid and its application.
Background technology
In the case of production PX factories nominal situation, during production and transportation, the intermediate product or product of aromatic hydrocarbons
Generally highly volatile, may reveal, produce poisonous fume.Generally, the gas containing benzene, toluene and dimethylbenzene is volatilized, referred to as
3 benzene waste gas.
Benzene is the product of a kind of coal tar distillation or petroleum cracking, colourless, transparent, the liquid with aromatic odor.Toluene
It is the methyl-derivatives of benzene with dimethylbenzene.Benzene, toluene and dimethylbenzene are classified as priority pollutant by U.S. environment administration, and they are to various
The great toxicity of life form.When the 3 benzene waste gas in factory permeate into surrounding resident area, when high concentration " triphen " steam is sucked, shadow
The oxidoreduction function of human inner cell is rung, using reducing cytoactive, the synthesis of ATP is reduced, and suppresses dividing for acetylcholine
Secrete and cause anesthesia.Major determinant hemopoietic function during chronic poisoning, makes leukopenia, skin, mucosa have bleeding to incline blood to sternly
Severe one causes aplastic anemia and dead.So these waste gas must be processed, to reduce the harm near its circumference resident.
And in air conditioner refrigerating, this kind of common pollutant of freon can be often produced, if such material can not be processed in time,
Can produce certain " greenhouse effect ", and its greenhouse effect effect is also higher than carbon dioxide.The master of freon is processed at present
Method is wanted to be combustion method, shortcoming its reaction mechanism of the method awaits further investigation；For in course of reaction temperature to decompose journey
The impact of degree, and whether can produce secondary pollution etc. in combustion, it is required for further in depth being studied, has
Body technology is not also overripened.Therefore, if recycling can effectively be carried out to freon, environment can be produced and is imitated well
Benefit.
The content of the invention
For defect of the prior art and deficiency, it is an object of the invention to provide a kind of 3 benzene waste gas adsorption liquid, is used for
Near control factory, the 3 benzene waste gas content of residential block, not only solves the absorption problem of 3 benzene waste gas while also to air conditioner refrigerating
Remaining freon is reclaimed.
To reach above-mentioned purpose, the present invention is adopted the technical scheme that：
A kind of 3 benzene waste gas adsorption liquid, described adsorption liquid include emulsion, surfactant, sodium carboxymethyl cellulose and
Water；Described emulsion includes freon and N- N-formyl morpholine Ns.
Specifically, counted in described emulsion by volume：Freon：N- N-formyl morpholine N=0.01~0.5：0.9~
0.1。
More specifically, in described adsorption liquid, each composition is by mass：13~23 parts of emulsion, surfactant 1~2
Part, 1~3 part of sodium carboxymethyl cellulose, 7500~8500 parts of water.
Described surfactant includes the mixture of fatty glyceride, sugar esters or both.
In addition, described emulsion includes freon recovered liquid and N- N-formyl morpholine Ns, described freon recovered liquid is to receive
Waste liquid after collection air conditioner refrigerating；
In freon recovered liquid, the mass percent of freon is 30%~50%, is counted by volume, freon recovered liquid：
N- N-formyl morpholine N=0.1~0.9：0.9~0.1.
Described 3 benzene waste gas adsorption liquid is used for into the application of 3 benzene waste gas absorption.
Beneficial effects of the present invention are：
(1) present invention is contacted with adsorption liquid by 3 benzene waste gas, is adsorbed 3 benzene waste gas first with adsorption liquid, Ran Houli
The dissolubility of aromatic hydrocarbon substance is absorbed to which with emulsion, so that gas is purified；
(2) 3 benzene waste gas adsorption liquid of the present invention is to absorb aromatic hydrocarbons as main containing freon and N- N-formyl morpholine Ns emulsion
The material of waste gas, the features such as it has stable chemical nature, nontoxic, non-corrosiveness, simultaneously will not poisonous and harmful substance is absorbed
Bring secondary pollution；
(3) while the present invention considerably increases virtue using the freon reclaimed after air conditioner refrigerating while refuse reclamation
The absorbance of hydrocarbon waste gas, can substantially reduce the relative volatility of aromatic hydrocarbons after dissolving aromatic hydrocarbons, in making air, three benzene contents are dropped to relatively
Very low degree, improves factory and its surrounding.
Specific embodiment
The present invention operation principle be：3 benzene waste gas refer to the mixed gas of benzene, toluene and dimethylbenzene, make 3 benzene waste gas
Contact with adsorption liquid of the present invention, triphen is adsorbed first with adsorption liquid, then the dissolubility using emulsion to aromatic hydrocarbon substance
Which is absorbed, so that gas is purified.
The present invention using method be：According to 3 benzene waste gas adsorption liquid：Water=1:6~12 volume ratios are made into 3 benzene waste gas suction
Attached liquid aqueous solution, i.e.,：The water of 3~6 parts by volume is added in groove first, then by the 3 benzene waste gas absorption of the present invention of 1 parts by volume of addition
Liquid, after being sufficiently stirred for, then plus 3~water of 6 parts by volume, stirs；
Waste gas absorption simulation process is as follows：The 3 benzene waste gas adsorption liquid aqueous solution 100mL for making is taken in being put in beaker, is put
In 3 benzene waste gas environment (benzene：Toluene：Dimethylbenzene volume ratio is 2：1：1), volume residing for waste gas is 1m3In, absorb certain hour
Take out；And the content of wherein triphen is detected using gas chromatograph.
The detailed construction of the present invention is further described below in conjunction with specific embodiment.
Embodiment 1：
The freon recovered liquid of the present embodiment is used and is typically usually used in air-conditioning, the freon R22 of refrigeration for refrigerator, fluorine profit
High R12 etc., the freon recovered liquid for taking variable concentrations are different to the assimilation effect of waste gas, the 3 benzene waste gas adsorption liquid of the present embodiment
It is adopt with the following method made by：
First, component and proportioning are：18 weight portion of emulsion, 1 weight portion of surfactant, 1 weight of sodium carboxymethyl cellulose
Part and 8000 weight portion of water, the surfactant used by the present embodiment are fatty glyceride；
2nd, manufacture method is：
Step one：The making of emulsion：Freon recovered liquid and N- N-formyl morpholine Ns are sequentially added in a kettle. by proportioning,
Open reactor to be stirred, stirring forms FN-1 emulsions in 3 hours until completely dissolved；
Step 2：3 benzene waste gas adsorption liquid makes：Water FN-1 emulsions, surface are sequentially added in a kettle. by proportioning to live
Property agent, sodium carboxymethyl cellulose solution and water, open reactor be stirred, stirring be completely dissolved within 2.5 hours.
In freon recovered liquid, the mass percentage concentration of freon is 48.1%, counts freon recovered liquid by volume：N-
N-formyl morpholine N=0.5:0.5.
Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 2：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.6:0.4, surfactant used is sugar esters.Which is simulated in laboratory, its suction
Fruit of producing effects is shown in Table one.
Embodiment 3：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.7:0.3, the mixture of surfactant fatty acid glyceride used and sugar esters, fatty acid
Glyceride is 1 with the mass ratio of sugar esters:1.Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 4：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.8:0.2；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 5：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.9:0.1；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 6：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.4:0.6；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 7：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.3:0.7；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 8：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0.2:0.8, which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 9：
3 benzene waste gas adsorption liquid described in this enforcement is freon in emulsion with the difference of embodiment one：N- formyls
Morpholine=0.1:0.9；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 10：
3 benzene waste gas adsorption liquid described in this enforcement is freon in emulsion with the difference of embodiment one：N- formyls
Morpholine=1:0；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Embodiment 11：
3 benzene waste gas adsorption liquid described in this enforcement is freon recovered liquid in emulsion with the difference of embodiment one：
N- N-formyl morpholine N=0:1；Which is simulated in laboratory, its assimilation effect is shown in Table one.
Table one：To simulated exhaust adsorption effect list after component ratio in change emulsion
From the experimental result in table 1, freon and N- N-formyl morpholine Ns have mutually rush to the adsorption process of 3 benzene waste gas
The effect entered, meanwhile, it is 1 in the ratio of freon and N- N-formyl morpholine Ns：When 1, preferably, ratio is 0.8~0.1 for adsorption effect：
When 0.2~0.9, it is good that absorbance can reach more than 90% assimilation effect.
Embodiment 12：
The difference of 3 benzene waste gas adsorption liquid and embodiment one described in this enforcement is the concentration of freon in emulsion
For 35.6%；Which is simulated in laboratory, its assimilation effect is shown in Table two.
Embodiment 13：
The difference of 3 benzene waste gas adsorption liquid and embodiment one described in this enforcement is the concentration of freon in emulsion
For 40.0%；Which is simulated in laboratory, its assimilation effect is shown in Table two.
Table two：To simulated exhaust adsorption effect list after change freon concentration
From the experimental result in table 2, in freon recovered liquid, the concentration of freon is higher, the adsorption effect to waste gas
Better.
Claims (4)
1. a kind of 3 benzene waste gas adsorption liquid, it is characterised in that described adsorption liquid includes emulsion, surfactant, carboxymethyl
Sodium cellulosate and water；Described emulsion includes freon and N- N-formyl morpholine Ns；Counted in described emulsion by volume：Fluorine profit
It is high：N- N-formyl morpholine N=0.01~0.5：0.9~0.1；
In described adsorption liquid, each composition is by mass：13~23 parts of emulsion, 1~2 part of surfactant, carboxymethyl cellulose
1~3 part of sodium, 7500~8500 parts of water.
2. 3 benzene waste gas adsorption liquid as claimed in claim 1, it is characterised in that described surfactant includes that fatty acid is sweet
The mixture of grease, sugar esters or both.
3. 3 benzene waste gas adsorption liquid as claimed in claim 1, it is characterised in that described emulsion includes freon recovered liquid
With N- N-formyl morpholine Ns, described freon recovered liquid is the waste liquid after collecting air conditioner refrigerating；Freon in freon recovered liquid
Mass percent is 30%~50%, is counted by volume, freon recovered liquid：N- N-formyl morpholine N=0.1~0.9：0.9~0.1.
4. the 3 benzene waste gas adsorption liquid described in claim 1,2 or 3 is used for the application of 3 benzene waste gas absorption.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1126488A (en) * | 1993-05-17 | 1996-07-10 | 株式会社东芝 | Cleaning agent, cleaning method and cleaning apparatus |
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| JP2007237023A (en) * | 2006-03-06 | 2007-09-20 | Nissan Motor Co Ltd | Aromatic hydrocarbon adsorbent material and aromatic hydrocarbon reduction system |
| CN101844025B (en) * | 2010-03-31 | 2012-11-07 | 环境保护部华南环境科学研究所 | Organic waste gas microemulsion absorbent, and preparation method and use thereof |
| CN102503759B (en) * | 2011-10-27 | 2013-10-09 | 天津大学 | Method and device for simultaneously recycling methylbenzene and dimethyl formamide in industrial waste gas by using solvent |
| CN103157362A (en) * | 2011-12-09 | 2013-06-19 | 中国科学院广州地球化学研究所 | Preparation method of micro-emulsion absorption liquid used for processing organic exhaust gas |
| CN103768629B (en) * | 2014-01-09 | 2016-05-11 | 鹤壁宝发能源科技股份有限公司 | The deodorant with fresh air of homogeneous is not fired in environmental protection |
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Inventor after: Meng Qingpeng Inventor after: Zhu Qi Inventor after: Huang Rong Inventor after: Zhao Bohan Inventor after: Luo Yu Inventor after: Cheng Gao Inventor after: Yang Yongjian Inventor after: Wang Shuai Inventor after: Li Yuliang Inventor before: Li Yuliang Inventor before: Xu Yongsheng Inventor before: Dai Shuqi Inventor before: Zhao Yingjie Inventor before: Li Zhiqiang Inventor before: He Wenting |
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