CN106215628A - Liquid for absorbing waste organic gas and application process thereof - Google Patents
Liquid for absorbing waste organic gas and application process thereof Download PDFInfo
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- CN106215628A CN106215628A CN201610755466.1A CN201610755466A CN106215628A CN 106215628 A CN106215628 A CN 106215628A CN 201610755466 A CN201610755466 A CN 201610755466A CN 106215628 A CN106215628 A CN 106215628A
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- liquid
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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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
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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
- B01D53/14—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 absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of liquid for absorbing waste organic gas and application process thereof, including powdered carbon, aluminum sulfate or sodium hypochlorite, sulphuric acid or hydrochloric acid, chemical assistant, activator, the percentage by weight of each component is as follows: powdered carbon 1 15%, aluminum sulfate or sodium hypochlorite 2 20%, sulphuric acid or hydrochloric acid 0.2 2%, chemical assistant 0.3 3%, activator 0.2 2%, surplus is water；Liquid for absorbing waste organic gas is forced circulation in spray packed tower, Organic Waste Gas Pollution material absorbs in degraded pond with spray liquid backflow, macromolecular organic compound matter is solidificated on powdered carbon, and saturated powdered carbon swims in above absorption degraded pond, and the pH value of liquid for absorbing waste organic gas controls between 57；Distillation is pulled and passed through to saturated powdered carbon out or extraction and recovery uses；Aeration oxygen replenishing in absorbing degraded pond, low-molecular-weight organic compound is directly aoxidized by hydroxyl free radical ion, oxonium ion, it is degraded to nontoxic carbon dioxide and water, after using said structure, there is the advantages such as technological process is simple, absorption efficiency is high, good purification, operating cost are low.
Description
Technical field
The invention relates to industrial organic waste-gas purification technical field, particularly a kind of for purifying industrial organic waste gas
Absorbing liquid and application process.
Background technology
All product surface must be entered in industries such as furniture, shoemaking, automobile, machinery, household electrical appliances, electromechanics, plastic, five metals
Row process, the most most effective and the most efficiently method be through painted surface process produce motley product, permissible
It is greatly improved the aesthetic feeling of product.But release of volatilizing in paint production, dilution, spraying process and during subsequent cure has
Machine exhaust emission.The comparison of ingredients of Organic Waste Gas Pollution thing is complicated, mainly has low-molecular-weight organic compound and macromolecule organic
Compound, just water solublity and the degradability of organic compound differs greatly, particularly as surface spraying, plastic processing, chemical industry,
Rubber, pharmacy, chemical fertilizer, print, the organic exhaust gas of the generation such as weaving, the solvent of surface spraying and diluent have benzene, toluene, diformazan
Benzene etc. are insoluble in the water that polarity is stronger, and benzene,toluene,xylene is non-polar high polymer organic compound material, also has readily soluble water
The low pole low-molecular-weight organic compounds such as methanol, ethanol, acetone, aliphatic ketone, formaldehyde, acetaldehyde.Organic exhaust gas has carcinogenic, cause mostly
Abnormal, mutagenic effect and genetoxic, directly the harm life and health such as the mankind and other biological, such as benzene,toluene,xylene class pair
The nerve of human body and hemopoietic system cause harm greatly.
At present VOCs treatment also not being had preferable way, the more commonly used way is to utilize microbial technology
Reach clean-up effect.This way utilize microorganism using the organic component in waste gas as the energy of its vital movement or other support
Point, through metabolic degradation, it is converted into simple inorganic matter CO2, water etc. and cell component.External since the eighties, start
Processing industrial waste gas by biotechnology, technology cleans, easy and simple to handle, can be carried out reaction at normal temperatures and pressures, especially
Its low concentration, high flow capacity waste gas purification on have received good effect, biological waste gas purification is the new technique of " green ".Mesh
In front biological treatment, because being affected by factors such as microbial bacteria, bio-film colonization, air quantity, humidity, temperature, the time of staying, pressure,
Easily there is filtrate and the problem such as the degeneration of biofilm, microbial activity reduction, cause the short-circuit flow that air film contacts, so that organic
The purification efficiency of exhaust emission reduces.Additionally, water solublity and biological degradability to organic pollution require the highest, biological
The startup of reactor, microbial acclimation, processing procedure persistent period, and the specific surface area of filler is few, porosity is few, resistance of ventilating
Power is greatly the subject matter of current filler.The less effective of filler causes bacterial activity to reduce, equipment volume is huge, the time of staying
Long, easily block, affect mass transfer effect, make filler short for service life, and then directly affect the operating cost of whole system.For
This, many manufacturers and knowledgeable people exclusively carry out exploitation and develop, but the most not yet have comparatively ideal product to emerge.
Innovation and creation content
In order to solve the problems referred to above existing for existing VOCs treatment, the purpose of the invention is to provide a kind of energy
Process simultaneously such as the macromolecular organic compound matter such as benzene,toluene,xylene and as methanol, ethanol, acetone, aliphatic ketone, formaldehyde,
The liquid for absorbing waste organic gas of the low-molecular-weight organic compound matter such as acetaldehyde, this absorbing liquid is high to the removal efficiency of organic exhaust gas, raw material
Wide material sources, equipment investment and operating cost are low, can be substantially reduced the harm of industrial waste gas environmental pollution.Another of the present invention
Purpose is to provide the application process of above-mentioned liquid for absorbing waste organic gas.
The invention solves the technical scheme that its technical problem is used, and described liquid for absorbing waste organic gas includes charcoal
Powder, aluminum sulfate or sodium hypochlorite, sulphuric acid or hydrochloric acid, chemical assistant, activator, the percentage by weight of each component is as follows: powdered carbon 1-
15%, aluminum sulfate or sodium hypochlorite 2-20%, sulphuric acid or hydrochloric acid 0.2-2%, chemical assistant 0.3-3%, activator 0.2-2%, surplus
For water；One during wherein chemical assistant includes sulfuric acid, phosphate ester salt, carboxylate or any two kinds, activator is polyoxy
Ethylene type or the activating agent of polyhydroxy fundamental mode.
The further scheme of the invention, described powdered carbon is the one of bamboo charcoal, activated carbon, Linesless charcoal or other plant charcoal
Plant, arbitrarily two or more grinding and processing forms, and powdered carbon controls at 100-3000 mesh.
The further scheme of the invention, the percentage by weight of each component is as follows: powdered carbon 6%, aluminum sulfate or hypochlorous acid
Sodium 10%, sulphuric acid or hydrochloric acid 1%, chemical assistant 2%, activator 1%, surplus is water.
The application process of described liquid for absorbing waste organic gas, comprises the steps:
Step one: the preparation of liquid for absorbing waste organic gas, chooses powdered carbon, aluminum sulfate or sodium hypochlorite, sulfur by above-mentioned percentage by weight
Acid or hydrochloric acid and water mix and blend, the chemical assistant and the activator that are then sequentially added into above-mentioned percentage by weight stir,
I.e. can get liquid for absorbing waste organic gas；
Step 2: the liquid for absorbing waste organic gas absorbed in degraded pond is forced in spray packed tower from top to down by circulating pump
Circulation, industrial organic exhaust gas is from the air inlet feeding of spray packed tower, and liquid for absorbing waste organic gas and industrial organic exhaust gas are in tower
Inversely absorbing absorption and reaction, the gas after process is discharged from the floss hole of spray packed tower, by liquid for absorbing waste organic gas
The Organic Waste Gas Pollution material absorbing absorption absorbs in degraded pond with spray liquid backflow, and macromolecular organic compound matter is solidificated in charcoal
On powder, saturated powdered carbon swims in above the liquid for absorbing waste organic gas absorbing degraded pond, the organic waste aspiration of spray packed tower outlet
The pH value receiving liquid controls between 5-7；
Step 3: pull out swimming in the saturated powdered carbon absorbed on degraded pond, through distillation or extraction, reclaim in organic exhaust gas
The useful component of Organic substance, after desorption, powdered carbon is recycled to be used in liquid for absorbing waste organic gas；
Step 4: aeration oxygen replenishing in absorbing degraded pond, makes the sulphuric acid in liquid for absorbing waste organic gas or hydrochloric acid, aluminum sulfate or secondary chlorine
Low-molecular-weight organic compound is directly aoxidized by hydroxyl free radical ion, oxonium ion in acid sodium, and to macromolecular organic
Compound carries out being catalyzed and change into low-molecular-weight organic compound soluble in water, be dissolved in the organic compound of water oxidative degradation,
Biotransformation is degraded to nontoxic carbon dioxide and water poisonous organic compound.
After using said structure, have the following advantages compared with the prior art and effect.
One is during VOCs treatment, utilizes sulphuric acid or hydrochloric acid, aluminum sulfate or secondary chlorine in liquid for absorbing waste organic gas
Acid sodium is dissolved in oxonium ion, the hydroxyl ion free radical under being continuously added of aeration oxygen produced after water, directly to low molecule
Organic compound such as methanol, ethanol, acetone, aliphatic ketone, formaldehyde, acetaldehyde etc. carry out aoxidizing and be degraded to nontoxic carbon dioxide and
Water；Commensurability macromolecular organic compound in liquid for absorbing waste organic gas be catalyzed and be converted into low-molecular-weight organic compound,
Under oxidant uses, it is degraded to nontoxic carbon dioxide and water, thus reaches the purpose of degraded.
Two is to utilize the porous characteristic of powdered carbon in liquid for absorbing waste organic gas, because the surface area of porous material is the biggest,
The molecule that it adsorbs other materials is the most, and adsorption is the strongest, and the polarity of powdered carbon is less, poor to polarity in water
The solute such as macromolecular organic compound such as benzene,toluene,xylene have bigger affinity, powdered carbon easily adsorbs these solutes, and
It is difficult to adsorb the material that the strong water of polarity is strong with other polarity；So liquid for absorbing waste organic gas is in the spray process of spray packed tower
In can quickly absorb in absorption industrial organic exhaust gas such as macromolecular organic compound matter such as benzene,toluene,xylenes and be solidificated in
On powdered carbon, absorbing in degraded pond with spray liquid backflow, saturated powdered carbon swims in above the liquid for absorbing waste organic gas absorbing degraded pond,
Thus reach to absorb the purpose of absorption；Saturated powdered carbon, through distillation or extraction, reclaims the useful component of Organic substance in organic exhaust gas,
After desorption, powdered carbon is recycled to be used in liquid for absorbing waste organic gas, is possible to prevent the generation of secondary pollution, and recovery utilization rate is good.
Three is that liquid for absorbing waste organic gas concentration is low, big to Organic substance dissolubility, does not haves spray packed tower fouling, blocking
Phenomenon；There is the advantages such as processing technological flow is simple, easy and simple to handle, absorption efficiency is high, good purification, operating cost are low.
Accompanying drawing explanation
Fig. 1 is process flow diagram during the invention application.
Wherein, 1 spray packed tower, 2 absorb degraded pond, 3 packing layers, 4 spray heads, 5 demisters, 6 air inlets, 7 discharges
Mouthful, 8 saturated powdered carbons, 9 source of oxygen, 10 circulating pumps, 11 absorbing liquid basins, 12 aeration agitation pipes.
Detailed description of the invention
Being described in further detail the invention below in conjunction with embodiment, described liquid for absorbing waste organic gas includes
Powdered carbon, aluminum sulfate or sodium hypochlorite, sulphuric acid or hydrochloric acid, chemical assistant, activator, the percentage by weight of each component is as follows: powdered carbon
1-15%, aluminum sulfate or sodium hypochlorite 2-20%, sulphuric acid or hydrochloric acid 0.2-2%, chemical assistant 0.3-3%, activator 0.2-2%, remaining
Amount is water；One during wherein chemical assistant includes sulfuric acid, phosphate ester salt, carboxylate or any two kinds, activator is poly-
Oxygen ethylene type or the activating agent of polyhydroxy fundamental mode.
Described powdered carbon is the one of bamboo charcoal, activated carbon, Linesless charcoal or other plant charcoal, arbitrarily two or more is pulverized
Processing, powdered carbon controls at 100-3000 mesh.
The percentage by weight of the invention each component is as follows: powdered carbon 6%, aluminum sulfate or sodium hypochlorite 10%, sulphuric acid or salt
Acid 1%, chemical assistant 2%, activator 1%, surplus is water.
The application process of liquid for absorbing waste organic gas described in the invention, comprises the steps.
Step one: the preparation of liquid for absorbing waste organic gas, chooses powdered carbon, aluminum sulfate or hypochlorous acid by above-mentioned percentage by weight
Sodium, sulphuric acid or hydrochloric acid and water mix and blend, be then sequentially added into chemical assistant and the activator stirring of above-mentioned percentage by weight
Uniformly, i.e. can get liquid for absorbing waste organic gas.
Step 2: the invention uses spray packed tower 1, absorption degraded pond 2, the forced circulation of circulating pump 10 composition to set
It is standby, as it is shown in figure 1, at least provided with one-level packing layer 3 in spray packed tower 1, spray packed tower 1 is provided with spray from top to down
4 and demister 5, absorb degraded pond 2 and connect and have absorbing liquid basin 11 and the aeration agitation pipe being connected with source of oxygen 9
12.The present invention, in processing procedure, will absorb the liquid for absorbing waste organic gas degraded in pond 2 at spray packed tower by circulating pump 10
Forced circulation from top to down in 1, industrial organic exhaust gas sends into from the air inlet 6 of spray packed tower 1, liquid for absorbing waste organic gas and work
Industry organic exhaust gas inversely absorbs absorption and reaction in tower, and the gas after process is from floss hole 7 row of spray packed tower 1
Going out, the Organic Waste Gas Pollution material being absorbed absorption by liquid for absorbing waste organic gas absorbs in degraded pond 2 with spray liquid backflow, macromolecule
Organic compound material is solidificated on powdered carbon, and saturated powdered carbon 8 swims in above the liquid for absorbing waste organic gas absorbing degraded pond 2, spray
The pH value of the liquid for absorbing waste organic gas of packed tower 1 outlet controls between 5-7.
Step 3: pull out swimming in the saturated powdered carbon 8 absorbed on degraded pond 2, through distillation or extraction, reclaim organic waste
The useful component of Organic substance in gas, after desorption, powdered carbon is recycled to be used in liquid for absorbing waste organic gas.
Step 4: in processing procedure, is absorbed degraded pond 2 and is exposed by the aeration agitation pipe 12 being connected with source of oxygen 9
Gas oxygen supplement, make the sulphuric acid in liquid for absorbing waste organic gas or the hydroxyl free radical ion in hydrochloric acid, aluminum sulfate or sodium hypochlorite, oxygen from
Low-molecular-weight organic compound is directly aoxidized by son, and is catalyzed macromolecular organic compound and changes into soluble in water
Low-molecular-weight organic compound, be dissolved in the organic compound of water in oxidative degradation biotransformation poisonous organic compound
Thing is degraded to nontoxic carbon dioxide and water.
The above, the simply specific embodiment of the invention, not the invention is made any pro forma
Limit, on the basis of without departing from the technical scheme of the invention, done simple modification, equivalent variations or modification, all fall
Enter the protection domain of the invention.
Claims (4)
1. a liquid for absorbing waste organic gas, is characterized in that: include that powdered carbon, aluminum sulfate or sodium hypochlorite, sulphuric acid or hydrochloric acid, chemistry help
Agent, activator, the percentage by weight of each component is as follows: powdered carbon 1-15%, aluminum sulfate or sodium hypochlorite 2-20%, sulphuric acid or hydrochloric acid
0.2-2%, chemical assistant 0.3-3%, activator 0.2-2%, surplus is water；Wherein chemical assistant includes sulfuric acid, phosphate ester
One in salt, carboxylate or any two kinds, activator is polyoxyethylene-type or the activating agent of polyhydroxy fundamental mode.
Liquid for absorbing waste organic gas the most according to claim 1, is characterized in that: described powdered carbon is bamboo charcoal, activated carbon, Linesless charcoal
Or the one of other plant charcoal, arbitrarily two or more grinding and processing form, powdered carbon controls at 100-3000 mesh.
Liquid for absorbing waste organic gas the most according to claim 2, is characterized in that: the percentage by weight of each component is as follows: powdered carbon
6%, aluminum sulfate or sodium hypochlorite 10%, sulphuric acid or hydrochloric acid 1%, chemical assistant 2%, activator 1%, surplus is water.
The most according to claim 1, the application process of liquid for absorbing waste organic gas, is characterized in that: comprise the steps:
Step one: the preparation of liquid for absorbing waste organic gas, chooses powdered carbon, aluminum sulfate, sulphuric acid and water by above-mentioned percentage by weight and mixes
Closing stirring, the chemical assistant and the activator that are then sequentially added into above-mentioned percentage by weight stir, and i.e. can get organic exhaust gas
Absorbing liquid；
Step 2: the liquid for absorbing waste organic gas absorbed in degraded pond is forced in spray packed tower from top to down by circulating pump
Circulation, industrial organic exhaust gas is from the air inlet feeding of spray packed tower, and liquid for absorbing waste organic gas and industrial organic exhaust gas are in tower
Inversely absorbing absorption and reaction, the gas after process is discharged from the floss hole of spray packed tower, by liquid for absorbing waste organic gas
The Organic Waste Gas Pollution material absorbing absorption absorbs in degraded pond with spray liquid backflow, and macromolecular organic compound matter is solidificated in charcoal
On powder, saturated powdered carbon swims in above the liquid for absorbing waste organic gas absorbing degraded pond, the organic waste aspiration of spray packed tower outlet
The pH value receiving liquid controls between 5-7；
Step 3: pull out swimming in the saturated powdered carbon absorbed on degraded pond, through distillation or extraction, reclaim in organic exhaust gas
The useful component of Organic substance, after desorption, powdered carbon is recycled to be used in liquid for absorbing waste organic gas；
Step 4: gas explosion oxygen supplement in absorbing degraded pond, makes the sulphuric acid in liquid for absorbing waste organic gas, the hydrogen-oxygen in aluminum sulfate freely
Low-molecular-weight organic compound is directly aoxidized by base ion, oxonium ion, and is catalyzed macromolecular organic compound and turns
Being melted into low-molecular-weight organic compound soluble in water, the organic compound handle in oxidative degradation biotransformation being dissolved in water has
The organic compound of poison is degraded to nontoxic carbon dioxide and water.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029515A (en) * | 2017-05-27 | 2017-08-11 | 佛山市三水万瑞达环保科技有限公司 | A kind of cleaned filtrate of gas humidification |
| CN107149835A (en) * | 2017-06-06 | 2017-09-12 | 石泰山 | Concentration and processing method of a kind of low concentration containing volatile organic compounds |
| CN109012584A (en) * | 2018-08-07 | 2018-12-18 | 永康市禄祥环保科技有限公司 | A kind of novel absorbent charcoal and the method for handling organic exhaust gas |
| CN109603486A (en) * | 2019-01-24 | 2019-04-12 | 查红平 | A kind of organic exhaust gas adsorption electrolysis unit |
| CN112675695A (en) * | 2020-12-01 | 2021-04-20 | 深圳市尤佳环境科技有限公司 | Spray liquid for purifying waste gas and odor and preparation method thereof |
| CN113058407A (en) * | 2021-03-12 | 2021-07-02 | 上海蓝宇水处理股份有限公司 | Medical waste gas recycling system |
| CN114699898A (en) * | 2022-04-01 | 2022-07-05 | 南京大学环境规划设计研究院集团股份公司 | Automatic change device of absorbing recovery acetone |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029515A (en) * | 2017-05-27 | 2017-08-11 | 佛山市三水万瑞达环保科技有限公司 | A kind of cleaned filtrate of gas humidification |
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| CN109012584A (en) * | 2018-08-07 | 2018-12-18 | 永康市禄祥环保科技有限公司 | A kind of novel absorbent charcoal and the method for handling organic exhaust gas |
| CN109603486A (en) * | 2019-01-24 | 2019-04-12 | 查红平 | A kind of organic exhaust gas adsorption electrolysis unit |
| CN109603486B (en) * | 2019-01-24 | 2024-04-05 | 查红平 | Organic waste gas adsorbs electrolytic device |
| CN112675695A (en) * | 2020-12-01 | 2021-04-20 | 深圳市尤佳环境科技有限公司 | Spray liquid for purifying waste gas and odor and preparation method thereof |
| CN113058407A (en) * | 2021-03-12 | 2021-07-02 | 上海蓝宇水处理股份有限公司 | Medical waste gas recycling system |
| CN114699898A (en) * | 2022-04-01 | 2022-07-05 | 南京大学环境规划设计研究院集团股份公司 | Automatic change device of absorbing recovery acetone |
| CN114699898B (en) * | 2022-04-01 | 2023-02-14 | 南京大学环境规划设计研究院集团股份公司 | Automatic change device of absorbing recovery acetone |
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