CN101569826B - Purification method of waste gas with benzene or benzene homolog and purification apparatus thereof - Google Patents
Purification method of waste gas with benzene or benzene homolog and purification apparatus thereof Download PDFInfo
- Publication number
- CN101569826B CN101569826B CN2009101472051A CN200910147205A CN101569826B CN 101569826 B CN101569826 B CN 101569826B CN 2009101472051 A CN2009101472051 A CN 2009101472051A CN 200910147205 A CN200910147205 A CN 200910147205A CN 101569826 B CN101569826 B CN 101569826B
- Authority
- CN
- China
- Prior art keywords
- packing layer
- waste gas
- purification
- contact tower
- benzene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a purification method of waste gas with benzene or benzene homolog and a purification apparatus comprising a circulating pump, a purification solution bath and a contact tower.The contact tower is sequentially provided with a packing layer and a spray nozzle from bottom to top, the top end and the bottom end of the contact tower are sequentially provided with an air inlet and an air outlet. The method comprises the following steps: 1) preparing purification solution, mixing diesel oil with water and a surfactant to form even milky purification solution; 2) evenly sprinkling the purification solution to the packing layer with the spray nozzle; 3) completely absorbing the benzene or benzene homolog in the waste gas by the purification solution when the ascending waste gas flow meets the purification solution; and 4) dripping the purification solution flowing through the packing layer into the purification solution bath. The purification method has simple steps, easy operations and high purification efficiency, and the purification solution has rich raw material sources, cheap cost, easy preparation and high absorption efficiency. The purification apparatus used in the method has simple structure, high absorption efficiency and is easy for industrialized production.
Description
Technical field
The invention belongs to the exhaust-gas treatment field, specifically relate to a kind of purification method and purifier that contains the waste gas of benzene or its homologue.
Background technology
Atmosphere pollution is one of outstanding at present problem of environmental pollution of China, and wherein volatile organic matter is the important source of atmosphere pollution.The industrial waste gas that contains volatile organic matter in a large number enters atmosphere, causes the bad border of atmosphere quality to descend, and also brings harm to health simultaneously, brings about great losses to national economy.Benzene,toluene,xylene (i.e. three benzene series things) as the representative pollutant of typical volatile organic compounds; Can get into human body through respiratory tract and skin; Can make people's system such as breathing, blood, liver and organ cause temporary or permanent pathology, especially benzene naphthalene pyrene class polycyclic aromatic hydrocarbon can make human body directly carcinogenic to cause human great attention.So, the research and the improvement of volatile organic matter is become a major issue in the current air contaminant treatment.
Volatile organic compounds for low concentration, no recovery value adopts disruptive method such as catalytic combustion, corona method or plasma method more at present; Middle and high concentration, the volatile organic compounds that has recycling to be worth then adopt non-destructive method like absorption and absorption etc. as far as possible.Absorption method is the method that a kind of processing commonly used contains volatile organic matter, and wherein active carbon adsorption is used the most extensively, but that it is easy to is saturated; The absorption cycle is short; The regeneration expense is high, under moistening condition, can not keep good adsorption capacity, and resistance is very high; Consumption of power is big, causes running expense higher.Absorption is the chemical separating operation of morning, technical maturity, applied range of a kind of development, can recycle pollutant simultaneously at the elimination gaseous contaminant, and be one of atmosphere improvement technology commonly used.The height of absorption process absorption efficiency depends primarily on absorbent.Microemulsion having obtained extensive use aspect agricultural production and pharmacy, the food, has particularly obtained great success as a kind of New Absorbent aspect tertiary oil recovery.A kind of method that microemulsion is used to improve the oil recovery rate is disclosed in the U$4240504 patent application; The author will go up mutually or middle phase micro-emulsified liquid injection subterranean layer when identical with hydrophobic; Because injecting phase and oil phase patibhaga-nimitta dissolves; Microemulsion is accomplished solubilising mutually rapidly with hydrophobic, and oils becomes a kind of good product and is recovered.
Summary of the invention
The technical problem that the present invention will solve is: the purification method and the purifier of the waste gas that contains benzene or its homologue of a kind of with low cost, scavenging solution wide material sources are provided, making easily.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of purification method that contains the waste gas of benzene or its homologue; It comprises a purifier; This purifier comprises circulating pump, purifies liquid pool and contact tower, is disposed with packing layer and shower nozzle in the said contact tower from down to up, and this shower nozzle is connected with said circulating pump through a water pipe; The top and bottom of said contact tower are disposed with air inlet and exhaust outlet, and it specifically may further comprise the steps:
1) preparation scavenging solution: with diesel oil and water with 1: the volume ratio of (0.05～0.5) is mixed, and in this mixture, adds surfactant, and mechanical agitation then is until the uniform white emulsus scavenging solution of formation;
2) scavenging solution is imported contact tower by circulating pump via water pipe, evenly spill in packing layer by shower nozzle again;
3) said waste gas is got in the contact tower by air inlet, via packing layer, is discharged by exhaust outlet, and in packing layer, the off-gas flows of rising runs into the scavenging solution of decline, and the benzene in this waste gas or its homologue are cleaned liquid and absorb fully;
4) the flow through scavenging solution of packing layer splashes into and purifies in the liquid pool, accomplishes a waste gas purification and circulates.
A kind of purification method that contains the waste gas of benzene or its homologue, the below of said packing layer also is provided with a gas averaging board, the said waste gas packing layer of flowing through again after via gas averaging board.
A kind of purification method that contains the waste gas of benzene or its homologue, the top of said packing layer also is provided with a demister, saidly flows through behind the said demister through the waste gas that absorbs, and is discharged by said exhaust outlet again.
A kind of purification method that contains the waste gas of benzene or its homologue, it is further comprising the steps of: with the scavenging solution breakdown of emulsion after the said circulation, separate, obtain the mixture of diesel oil.
A kind of above-mentioned used purifier of purification method that contains the waste gas of benzene or its homologue, it comprises contact tower, water pipe, circulating pump and purification liquid pool, said purification liquid pool is arranged on the bottom of said contact tower, and is connected with this contact tower; Said contact tower inside is disposed with shower nozzle and packing layer from top to bottom; This shower nozzle is arranged on the top of packing layer; It is connected with said circulating pump through said water pipe, and this circulating pump directly is connected with said purification liquid pool through said water sucking mouth, at the lower position of the bottom of said contact tower, said gas averaging board one air inlet is set; In the top of said contact tower, the top position of demister one exhaust outlet is set, an air inlet pipe is arranged on this air inlet place.
Above-mentioned purifier, said contact tower is inner, the below of packing layer also is provided with gas averaging board.
Above-mentioned purifier, said contact tower is inner, the top of packing layer 2 also is provided with demister.
Above-mentioned purifier, said packing layer are two-layer, and the top of this packing layer is provided with shower nozzle, and this shower nozzle is connected with said circulating pump through said water pipe.
Beneficial effect of the present invention is: the purification method that contains the waste gas of benzene or its homologue provided by the invention, and its step is simple, processing ease, purification efficiency is high, and its used scavenging solution raw material sources are abundant, low price, preparation easily, absorption efficiency is high; The purifier that said method is used, it is simple in structure, and absorption efficiency is high, easy for industrialized production.
Description of drawings
Fig. 1 is the overall structure sketch map of the said purifier of the embodiment of the invention.
The specific embodiment
With reference to Fig. 1; A kind of purification method that contains the waste gas of benzene or its homologue, it comprises a purifier, this purifier comprises circulating pump 9, water pipe 8, purifies liquid pool 10 and contact tower 1; Set gradually gas averaging board 5, packing layer 2, shower nozzle 3 and demister 4 in the said contact tower 1 from down to up; This shower nozzle 3 is connected with said circulating pump 9 through a water pipe 8, and the top and bottom of said contact tower are disposed with air inlet 6 and exhaust outlet 7, and it specifically may further comprise the steps:
1) preparation scavenging solution: with diesel oil and water with 1: the volume ratio of (0.05～0.5) is mixed, and in this mixture, adds surfactant, and mechanical agitation then is until the uniform white emulsus scavenging solution of formation;
2) above-mentioned scavenging solution is imported contact tower 1 by circulating pump 9 via water pipe 8, evenly spill in packing layer 2 by shower nozzle 3 again;
3) waste gas is got in the contact tower 1 by air inlet 6; Via behind gas averaging board 5, packing layer 2 and the demister 4, discharge by exhaust outlet 7, in packing layer 2 from top to bottom; The off-gas flows that rises runs into the scavenging solution of decline, and the benzene in the waste gas or its homologue are cleaned liquid and absorb fully;
4) scavenging solution is flowed through to splash into behind the packing layer 2 and is purified in the liquid pool 10, accomplishes a waste gas purification and circulates.
Above-mentioned steps 1) it is following in diesel oil to be carried out the effect of emulsification:
1. contain a large amount of volatile incendive organic molecules in the diesel oil; This organic molecule evaporate in the air; Not only can cause environmental pollution, also can cause burning and blast when serious, and organic molecule in the diesel oil after the emulsification and water merge mutually through surfactant; Significantly reduced the organic molecule volatilization, prevented contaminated environment and meet accident accident;
2. because diesel oil is combustible material, evenly spreading in the emulsion of the organic molecule cluster cluster in the diesel oil after the emulsification strengthened the fire resistance of emulsion;
3. the diesel oil behind Over emulsfication is higher more than 30% to the absorption efficiency of benzene and homologue thereof than pure diesel oil to the absorption efficiency of benzene in the waste gas and homologue thereof.
General reusable one month state that promptly reaches capacity of above-mentioned scavenging solution with absorbing scavenging solution after saturated through breakdown of emulsion, after the separation, is used for preparing heavy oil.
The purifier that is used for the purification method of the above-mentioned waste gas that contains benzene or its homologue, it comprises contact tower 1, water pipe 8, circulating pump 9 and purifies liquid pool 10.Purify the bottom that liquid pool 10 is arranged on contact tower 1, and be connected with this contact tower 1; Contact tower 1 inside is disposed with demister 4, shower nozzle 3, packing layer 2 and gas averaging board 5 from top to bottom; Shower nozzle 3 is arranged on the top of packing layer 2; It is connected with circulating pump 9 through water pipe 8; Circulating pump 9 directly is connected with purification liquid pool 10 through water sucking mouth 11, starts circulating pump 9, and scavenging solution is promptly endlessly by purifying liquid pool 10 via water pipe 8 and shower nozzle 3 ejections; At the bottom of contact tower, the lower position of gas averaging board one air inlet 6 is set, on the top of contact tower, the top position of demister is provided with an exhaust outlet 7, one air inlet pipe 12 and is arranged on air inlet 6 places; Waste gas is imported in the contact tower 1 by air inlet pipe 12; Rise to packing layer 2 via gas averaging board 5, in packing layer 2, the waste gas of rising runs into the scavenging solution that flows downward in the packing layer 2 that is distributed in by shower nozzle 3 ejections; Because benzene and homologue thereof very easily are dissolved in the scavenging solution; Therefore in packing layer 2, benzene in the waste gas and homologue thereof are cleaned liquid and absorb fully, and remaining waste gas is discharged via exhaust outlet 7; Constantly the scavenging solution of ejection flows down to get into via packing layer 2 and purifies in the liquid pool, again by circulating pump 9 with scavenging solution via shower nozzle 3 ejections, reciprocation cycle thus, waste gas constantly is cleaned.In the present embodiment, packing layer 2 is two-layer, and packing layer 2 tops are provided with shower nozzle 3.
The effect of gas averaging board 5 is that the waste gas that gets in the contact tower 1 is evenly disperseed, thereby improves the absorption efficiency of benzene in the waste gas and homologue thereof; The effect of demister 4 is the steam of removing in the waste gas, to reduce the water vapour content in the waste gas.
The present invention is not limited to above-mentioned embodiment, and every employing and analog structure of the present invention are realized all modes of the object of the invention, all within protection scope of the present invention.
Claims (5)
1. purification method that contains the waste gas of benzene or its homologue; It is characterized in that it comprises a purifier, this purifier comprises circulating pump, purifies liquid pool and contact tower; Be disposed with packing layer and shower nozzle in the said contact tower from down to up; This shower nozzle is connected with said circulating pump through a water pipe, and the top and bottom of said contact tower are disposed with air inlet and exhaust outlet, and it specifically may further comprise the steps:
1) preparation scavenging solution: with diesel oil and water with 1: the volume ratio of (0.05～0.5) is mixed, and in this mixture, adds surfactant, and mechanical agitation then is until the uniform white emulsus scavenging solution of formation;
2) scavenging solution is imported contact tower by circulating pump via water pipe, evenly spill in packing layer by shower nozzle again;
3) said waste gas is got in the contact tower by air inlet, via packing layer, is discharged by exhaust outlet, and in packing layer, the off-gas flows of rising runs into the scavenging solution of decline, and the benzene in this waste gas or its homologue are cleaned liquid and absorb fully;
4) the flow through scavenging solution of packing layer splashes into and purifies in the liquid pool, accomplishes a waste gas purification and circulates.
2. the purification method that contains the waste gas of benzene or its homologue according to claim 1 is characterized in that the below of said packing layer also is provided with a gas averaging board, the said waste gas packing layer of flowing through again after via gas averaging board.
3. the purification method that contains the waste gas of benzene or its homologue according to claim 1 is characterized in that the top of said packing layer also is provided with a demister, saidly flows through behind the said demister through the waste gas that absorbs, and is discharged by said exhaust outlet again.
4. the purification method that contains the waste gas of benzene or its homologue according to claim 1 is characterized in that it is further comprising the steps of: with the scavenging solution breakdown of emulsion after the said circulation, separate, obtain the mixture of diesel oil.
5. described used purifier of purification method that contains the waste gas of benzene or its homologue of claim 1, it comprises contact tower, water pipe, circulating pump and purification liquid pool, said purification liquid pool is arranged on the bottom of said contact tower, and is connected with this contact tower; Said contact tower inside is disposed with shower nozzle and packing layer from top to bottom; This shower nozzle is arranged on the top of packing layer; It is connected with said circulating pump through said water pipe, and this circulating pump directly is connected with said purification liquid pool through said water sucking mouth, at the lower position of the bottom of said contact tower, said gas averaging board one air inlet is set; In the top of said contact tower, the top position of demister one exhaust outlet is set, an air inlet pipe is arranged on this air inlet place; Said contact tower is inner, the below of packing layer also is provided with gas averaging board; Said contact tower is inner, the top of packing layer also is provided with demister; Said packing layer is two-layer, and the top of this packing layer is provided with shower nozzle, and this shower nozzle is connected with said circulating pump through said water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101472051A CN101569826B (en) | 2009-06-08 | 2009-06-08 | Purification method of waste gas with benzene or benzene homolog and purification apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101472051A CN101569826B (en) | 2009-06-08 | 2009-06-08 | Purification method of waste gas with benzene or benzene homolog and purification apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101569826A CN101569826A (en) | 2009-11-04 |
| CN101569826B true CN101569826B (en) | 2012-01-11 |
Family
ID=41229392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101472051A Expired - Fee Related CN101569826B (en) | 2009-06-08 | 2009-06-08 | Purification method of waste gas with benzene or benzene homolog and purification apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101569826B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170217A (en) * | 2013-04-03 | 2013-06-26 | 李竑 | Method for purifying benzene containing waste gas and recycling benzene and system thereof |
| CN103252155B (en) * | 2013-05-21 | 2015-06-03 | 许征 | Device for treating organic waste gas with oil-in-water emulsion and method for treating organic waste gas |
| CN104014235A (en) * | 2014-05-29 | 2014-09-03 | 苏州市金翔钛设备有限公司 | Waste-gas processing apparatus |
| CN105107341A (en) * | 2015-08-24 | 2015-12-02 | 江苏华达环境工程有限公司 | Benzene-containing waste gas processing method and processing system thereof |
| CN107008112A (en) * | 2017-06-07 | 2017-08-04 | 宁夏龙江化工科技有限公司 | A kind of light hydrocarbon etherifying industrial water washes tower |
| CN107854962A (en) * | 2017-11-13 | 2018-03-30 | 宜兴市野马环保工程有限公司 | A kind of oil curtain purifying column suitable for VOCs waste gas absorption adsorption plants |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354633Y (en) * | 1997-04-10 | 1999-12-22 | 福建省劳动保护科学研究所 | Diesel oil absorption method purifier |
| CN2470683Y (en) * | 2001-04-04 | 2002-01-09 | 郑毅 | Dioxins adsorption tower |
| CN1978032A (en) * | 2005-12-05 | 2007-06-13 | 天津渤天化工有限责任公司 | Multi-stage falling-film adsorption device |
| CN201091821Y (en) * | 2007-06-18 | 2008-07-30 | 娄爱娟 | Equipment of recycling sulfur oxide with absorbing liquid distributor |
-
2009
- 2009-06-08 CN CN2009101472051A patent/CN101569826B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354633Y (en) * | 1997-04-10 | 1999-12-22 | 福建省劳动保护科学研究所 | Diesel oil absorption method purifier |
| CN2470683Y (en) * | 2001-04-04 | 2002-01-09 | 郑毅 | Dioxins adsorption tower |
| CN1978032A (en) * | 2005-12-05 | 2007-06-13 | 天津渤天化工有限责任公司 | Multi-stage falling-film adsorption device |
| CN201091821Y (en) * | 2007-06-18 | 2008-07-30 | 娄爱娟 | Equipment of recycling sulfur oxide with absorbing liquid distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101569826A (en) | 2009-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101569826B (en) | Purification method of waste gas with benzene or benzene homolog and purification apparatus thereof | |
| CN201807278U (en) | Multifunctional integrated mixed waste gas purifying device | |
| CN210057890U (en) | Oily exhaust treatment device | |
| CN102068890A (en) | Method and device for treating complex industrial organic waste gas | |
| CN205340560U (en) | A biological automatically cleaned equipment for giving up smelly gas purification | |
| CN201988299U (en) | Waste gas purifying device | |
| CN102921293B (en) | Method for treating malodorous gas by biological combined process | |
| CN207641271U (en) | Vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques | |
| CN103252155B (en) | Device for treating organic waste gas with oil-in-water emulsion and method for treating organic waste gas | |
| CN204051377U (en) | Effective integrated soda acid and organic exhaust gas adsorption device | |
| CN208115480U (en) | A kind of emission-control equipment of co-oxidation | |
| CN107485993A (en) | Harbour oil gas recovery processing system | |
| CN101810982A (en) | Ethanol-containing waste-gas treatment process flow | |
| CN205796953U (en) | A kind of biological deodorizing tower | |
| CN106310892B (en) | A kind of spraying exhaust treatment system and its application | |
| CN203549850U (en) | Organic waste gas comprehensive disposal system | |
| CN205435422U (en) | Biological absorption method and photocatalysis method combined effect's exhaust treatment device | |
| CN210786806U (en) | Coating waste gas treatment equipment | |
| CN205323484U (en) | Organic waste gas purifier that processing produced to pitch | |
| CN107854962A (en) | A kind of oil curtain purifying column suitable for VOCs waste gas absorption adsorption plants | |
| CN205627451U (en) | Multi -functional coating cloud exhaust gas purification system of vortex formula | |
| CN200942327Y (en) | Treating device for odor gas containing oil | |
| CN206444445U (en) | A kind of organic exhaust gas high-efficient purification treatment device | |
| CN105498456A (en) | Workshop volatile organic compound pollution treatment process and device | |
| CN205379796U (en) | A biological filter for exhaust -gas treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120608 |