CN107569973A - The absorption processing method and system of VOC organic exhaust gas - Google Patents
The absorption processing method and system of VOC organic exhaust gas Download PDFInfo
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- CN107569973A CN107569973A CN201610518726.3A CN201610518726A CN107569973A CN 107569973 A CN107569973 A CN 107569973A CN 201610518726 A CN201610518726 A CN 201610518726A CN 107569973 A CN107569973 A CN 107569973A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of absorption processing method of VOC organic exhaust gas and system.This method includes：By VOC organic exhaust gas with condensing unit separate section organic matter, then waste gas is fully contacted in absorption plant with absorbent, the organic matter in waste gas is discharged after absorbent absorption cleaning, and absorbent is transformed into absorbent rich solution；Rich solution can inversely contact in desorption apparatus through vacuum extraction or heating or with purge gas, desorb the organic matter in absorbent rich solution, obtain the absorbent lean solution of regeneration, and go in absorption plant to recycle by absorbent lean solution conveying, and the desorption gas for being enriched with organic matter is condensed or burned or oxidation processes.The recovery to the organic component of higher-value in VOC organic exhaust gas can be realized by the processing method of the present invention, and carries out efficient removal processing, absorbent recycles, and can reduce running cost and environmental pollution.
Description
Technical field
The present invention relates to a kind of purification method of VOC organic exhaust gas, the absorption processing of more particularly to a kind of VOC organic exhaust gas
Method and system, belong to technical field of waste gas treatment.
Background technology
Volatile organic matter (Volatile Organic Compounds, abbreviation VOCs) refers to volatile hydrocarbonization
Compound and its derivative, it includes hydro carbons, aromatic hydrocarbons, alcohols, aldehydes, ketone, lipid, amine, organic acid etc..VOCs is after two
By the atmosphere pollution of extensive concern after sulfur oxide, nitride and freon, its industrial source is synthetic material production, oil refining
The industry such as system and petrochemical industry, building decoration, plant equipment manufacture.
VOCs main harm is to generate photochemical fog with reaction of nitrogen oxides in an atmosphere, is detrimental to health, and
And wherein also containing noxious material, the generation for situations such as being easily caused poisoning, most of VOC are inflammable and explosive in addition, higher in concentration
In the case of easily occur blast and fire；Postscript, part VOC can also damage the ozone layer.
Therefore, VOC organic exhaust gas needs by purified treatment before discharging, the treatment technology master of existing VOC organic exhaust gas
To include absorption method and facture.Wherein absorption method includes condensation method, absorption method, absorption process and membrane separation process etc.；Facture bag
Include combustion method, lower temperature plasma technology, Photocatalyst and microbial cleaning technology etc..
Although these existing techniques can realize the purification of VOC organic exhaust gas to a certain extent, its harm is reduced, but
There is also many deficiencies simultaneously for it.By taking absorption process therein as an example, it mainly using the similar principle to mix of organic matter, is used
Low volatilization or non-volatile solvent absorb to VOC, recycle the difference of VOC molecules and absorbent physical property to be separated,
But its absorptivity is relatively low, and usually require substantial amounts of absorbent, cost is high, and absorbent substantially can only single utilize, thus
It is also easy to cause secondary pollution.
The content of the invention
It is existing to overcome it is a primary object of the present invention to provide the absorption processing method and system of a kind of VOC organic exhaust gas
There is the deficiency in technology.
To realize aforementioned invention purpose, the technical solution adopted by the present invention includes：
The embodiments of the invention provide a kind of absorption processing method of VOC organic exhaust gas, it includes：
(1) VOC organic exhaust gas is fully contacted in absorption plant with absorbent, made in the organic exhaust gas at least partly
Organic matter is absorbed by absorbent and forms absorbent rich solution, the outside discharge if up to standard of the waste gas after purification；
(2) the absorbent rich solution is made to enter in desorption apparatus through vacuum extraction or heated separation or inverse with purge gas
To contact, the organic matter in the absorbent rich solution is desorbed, obtain the absorbent lean solution of regeneration, be enriched with the solution of organic matter
Air-breathing body carries out condensing recovery or burning or oxidation processes；
(3) the absorbent lean solution for the regeneration for being obtained step (2) inputs the absorption plant and recycled.
As one of case is preferable to carry out, step (1) also includes：It is right before VOC organic exhaust gas is inputted into absorption plant
VOC organic exhaust gas cools down processing, and condensed unit condenses, and is separated and recovered from the VOC organic exhaust gas extremely
Small part organic matter.
The embodiment of the present invention additionally provides a kind of absorption processing system of VOC organic exhaust gas, and it includes：
Absorption plant, to make VOC organic exhaust gas fully be contacted with absorbent, so that at least part in organic exhaust gas
VOC organic matters are absorbed by absorbent, obtain the waste gas after absorbent rich solution and purification；And
Desorption apparatus, to make the absorbent rich solution of absorption plant output through vacuum extraction it is heat-treated or with
Purge gas inversely contacts, so that the organic matter in the absorbent rich solution desorbs, obtains the absorbent lean solution and richness of regeneration
Collect the desorption gas of organic matter.
In certain embodiments, the absorption processing system also includes condensation recovery unit, the condensation recovery unit bag
Condensing heat exchanger is included, at least VOC organic exhaust gas to be cooled, and makes at least part in the VOC organic exhaust gas after cooling
Organic matter is condensed into liquid or solid-state, and exports the waste gas after condensed processing.
Compared with prior art, advantages of the present invention includes：
(1) present invention is first to condense the larger organic constituentses of the value in recovery unit recovery VOC organic exhaust gas, afterwards
Again to absorb and desorb processing VOC organic exhaust gas, so as to realize to the further efficient absorption of VOC organic exhaust gas and removing, make
Waste gas qualified discharge, and can also realize the efficient desorption of absorbent so that absorbent can be recycled, and substantially reduce operation
Cost, and realize the further recovery of volatile organic matter；
(2) the absorption processing method of VOC organic exhaust gas provided by the invention is simple to operate, and absorbent and purge gas etc. can
To recycle online, thus the lasting place to VOC organic exhaust gas can be realized on the basis of significantly absorbent dosage is reduced
Reason, and make waste gas qualified discharge, cost is low, green；
(3) the provided by the invention a kind of and supporting system space-consuming of VOC organic exhaust gas absorption processing method
Small, energy consumption is low, and may be designed as the portable structure of skid, more conducively the leakage onsite application in some pernicious gases.
Brief description of the drawings
Fig. 1 is that a kind of hypergravity of VOC organic exhaust gas in an exemplary embodiments of the invention absorbs processing technological flow figure.
Embodiment
In view of deficiency of the prior art, inventor is able to propose the present invention's through studying for a long period of time and largely putting into practice
Technical scheme, it is mainly the absorption processing method and its system of a kind of VOC organic exhaust gas.As follows will to the technical scheme, its
Implementation process and principle etc. are further explained.
A kind of absorption processing method for VOC organic exhaust gas that the one side of the embodiment of the present invention provides includes：
(1) VOC organic exhaust gas is fully contacted in absorption plant with absorbent, made in the organic exhaust gas at least partly
Organic matter is absorbed by absorbent and forms absorbent rich solution (as follows can abbreviation rich solution), the outside row if up to standard of the waste gas after purification
Put；
(2) the absorbent rich solution is made to enter in desorption apparatus through vacuum extraction or heated separation or inverse with purge gas
To contact, the organic matter in the absorbent rich solution is desorbed, obtain the absorbent lean solution (as follows can abbreviation lean solution) of regeneration, it is rich
The desorption gas of collection organic matter carries out condensing recovery or burning or oxidation processes；
(3) the absorbent lean solution for the regeneration for being obtained step (2) inputs the absorption plant and recycled.
As one of case is preferable to carry out, step (1) also includes：It is right before VOC organic exhaust gas is inputted into absorption plant
VOC organic exhaust gas cools down processing, and condensed unit condenses, and is separated and recovered from the VOC organic exhaust gas extremely
Small part organic matter.
In the present invention, described VOC organic exhaust gas refers to containing volatile organic matter (Volatile Organic
Compounds, abbreviation VOC) waste gas.The volatile organic matter includes volatile hydrocarbon and their derivative,
Such as include hydro carbons, aromatic hydrocarbons, alcohols, aldehydes, ketone, lipid, amine, organic acid etc..Certainly, the VOC organic exhaust gas
Other organic matters can be contained.
In some preferred embodiments, abovementioned steps (1) include：VOC organic exhaust gas is cooled, and condensed list
At least part organic matter (including but is not limited to foregoing volatile organic matter) in the waste gas is reclaimed in member condensation.The step
(1) method of processing VOC organic exhaust gas has the features such as simple to operate, flow is short, strong applicability, and selectivity is flexible in, can be real
The synchronization of existing multiple pollutant, expeditiously remove, and energy consumption is low, non-secondary pollution, can also obtain the pair with recovery value
Product.
Further, step (1) specifically includes：Organic exhaust gas after condensed processing and absorbent are inputted into absorption respectively
The gas access and liquid inlet of device, the organic exhaust gas is set fully to be contacted in absorption plant with absorbent, so that institute
At least part organic matter stated in organic exhaust gas is absorbed by absorbent, organic exhaust gas and absorbent rich solution after being purified, it
The organic exhaust gas after purification is exported from the gas vent of the absorption plant afterwards, and, by absorbent rich solution from the absorption
The liquid outlet output of device.
Prior absorbent device can be supergravity reactor or the packed tower or spray column of routine, preferably surpass
Gravity absorber.
For example, in certain embodiments, abovementioned steps (1) can specifically include：By the VOC organic wastes after condensed processing
Gas inputs the gas access and liquid inlet of the hypergravity absorber with absorbent respectively, makes the organic exhaust gas and absorbent
Because hypergravity acts on fully contact in hypergravity absorber, so that at least part organic matter (bag in the organic exhaust gas
Include but be not limited to foregoing volatile organic matter) absorbed by absorbent, organic exhaust gas and absorbent rich solution after being purified,
The organic exhaust gas after purification is exported from the gas vent of the hypergravity absorber afterwards, and by absorbent rich solution from described
The liquid outlet output of hypergravity absorber.
In some preferred embodiments, abovementioned steps (1) may also include：In the gas vent of the hypergravity absorber
Place is detected to the waste gas after purification, if detect it is qualified if be discharged into air, it is on the contrary then re-enter the hypergravity absorber
Gas access.
Further, step (2) specifically includes：The absorbent rich solution is inputted into desorption apparatus, and to absorbent rich solution
Vacuum extraction is carried out, either absorbent rich solution is heated or makes absorbent rich solution and the purge gas that is passed through desorption apparatus is inverse
To contact, so that the organic matter desorption in absorbent rich solution, obtains the absorbent lean solution of regeneration and is enriched with the solution of organic matter
Air-breathing body.
Foregoing desorption apparatus can be packed tower or the absorption tower of supergravity reactor or routine, preferably super
Gravity desorption device.
For example, in some preferred embodiment, abovementioned steps (2) specifically may include：The absorbent rich solution is inputted into institute
The liquid inlet of hypergravity desorption device is stated, or vacuum system is connected in hypergravity desorption device, or absorbent rich solution is heated, or
Purge gas inversely is passed through, makes the absorbent rich solution that Desorption separation occur in hypergravity desorption device, so that absorbent is rich
Organic matter desorption in liquid, obtain the absorbent lean solution of regeneration, and the desorption gas of enrichment organic matter.
Further, step (3) specifically includes：The cooling of the desorption gas rich in organic matter that step (2) is obtained is cold
Solidifying recovery at least part organic matter therein, or, system is burned into the input of the desorption gas rich in organic matter that step (2) is obtained
System or oxidization processing system.
For example, in some preferred embodiment, abovementioned steps (3) can specifically include：The absorbent that step (2) is obtained
The liquid inlet of lean solution input hypergravity absorber and recycling, and the desorption rich in organic matter that step (2) is obtained
Gas, then organic matter therein is reclaimed by cooling condensation, or, it is delivered to burning or oxidization processing system.
Further, abovementioned steps (3) may also include：By through cooling condensation recycling after desorption gas return transport to it is super
The gas access of gravity desorption device and recycle.
Foregoing supergravity reactor can be RPB, deflector type hypergravity rotating device, helical duct hypergravity
Any one or more in rotating device, fixed-rotor hypergravity rotating device and rotating compact disc hypergravity rotating device.
In some preferred embodiment, in the absorption processing method of described VOC organic exhaust gas, the hypergravity reaction
The hypergravity level of device should be enough to enable the absorbent fully to contact with VOC organic exhaust gas or make purge gas and rich solution enough
Fully it is advisable, for example, in some preferred embodiments, the rotor speed of the hypergravity absorber or hypergravity desorption device can
Think 200~1500rpm.
Further, be selected from being capable of reversible adsorption step (1) separation obtains for physically gas phase for the absorbent
The absorbent of organic matter (including but is not limited to foregoing volatile organic matter) in system.The absorbent is preferably flow-like
, particularly liquid.
Wherein, described absorbent (can include but is not limited to foregoing according to contained organic matter in the VOC organic exhaust gas
Volatile organic matter) type, content etc. and choose and assemble from any suitable sorbent known to industry.
Further, in the absorption processing method of the VOC organic exhaust gas, the temperature conditionss in the absorption plant are excellent
Electing as can make aforesaid organic substances (including but is not limited to foregoing volatile organic matter) farthest be dissolved in the absorbent,
Temperature conditionss without causing the absorbent rotten (thing phase and chemical constitution change).
In some embodiments, described absorbent may be selected from water, oily substance (such as lubricating oil, diesel oil, kerosene
Deng), ionic liquid or any of its compound, the aqueous solution or microemulsion containing surfactant or a variety of combinations, but not
It is limited to this.
Further, be selected from being capable of reversible absorption step (1) separation obtains for physically gas for the purge gas
Volatile organic matter in phase system, and will not be with the gas of the sorbent reactions.
In some embodiments, the purge gas preferably from but be not limited to vapor, air, nitrogen, indifferent gas
Any of body or two or more combinations.
More preferable, the temperature for inputting the purge gas of the desorption apparatus is not less than normal temperature.
It is of the invention to be first worth larger organic constituentses, Zhi Houzai to condense in recovery unit recovery VOC organic exhaust gas
Absorb and desorption handles VOC organic exhaust gas, so as to realize to the further efficient absorption of VOC organic exhaust gas and removing, make waste gas
Qualified discharge, and can also realize the efficient desorption of absorbent so that absorbent can be recycled, substantially reduce operation into
This, and realize the further recovery of volatile organic matter.
The absorption processing system for the VOC organic exhaust gas that the other side of the embodiment of the present invention provides, including：
Absorption plant, to make VOC organic exhaust gas fully be contacted with absorbent, so that at least part in organic exhaust gas
VOC organic matters are absorbed by absorbent, obtain the waste gas after absorbent rich solution and purification；And
Desorption apparatus, to make the evacuated processing of the absorbent rich solution of absorption plant output or it is heat-treated or
Inversely contacted with purge gas so that in the absorbent rich solution organic matter desorption, obtain regeneration absorbent lean solution and
It is enriched with the desorption gas of organic matter.
In some embodiments, the absorption processing system of described VOC organic exhaust gas includes condensation recovery unit, described
Condensation recovery unit includes condensing heat exchanger, at least VOC organic exhaust gas to be cooled, and makes the VOC organic wastes after cooling
At least part organic matter in gas is condensed into liquid or solid-state, and exports the waste gas after condensed processing.
In some more specific embodiment, the absorption processing system includes：
Recovery unit is condensed, including：
Condensing heat exchanger, at least VOC organic exhaust gas and/or purge gas containing organic matter to be exchanged heat cooling, make
VOC organic exhaust gas at least part organic matters after cooling are condensed into liquid or solid-state, and export the organic waste after condensed processing
Gas, and
Collector unit, at least being collected in the liquid formed in the condensing heat exchanger or solid organic.
Prior absorbent device includes any one in supergravity reactor, packed tower and spray column, preferably hypergravity
Absorber.
Foregoing desorption apparatus includes any one in supergravity reactor, packed tower and absorption tower, preferably hypergravity
Desorption device.
For example, in some preferable case study on implementation, the absorption processing system includes：
Hypergravity absorber, to make organic exhaust gas and absorbent that condensation recovery unit exports, condensed processing because
Hypergravity effect fully contact, so that at least part VOC organic matters in organic exhaust gas are absorbed by absorbent, obtains absorbent
Organic exhaust gas after rich solution and purification；And
Hypergravity desorption device, to make the absorbent rich solution of the hypergravity absorber output through vacuum system or heated
Separation inversely contacts desorption with purge gas, so that the organic matter in the absorbent rich solution is isolated, obtains regeneration
The desorption gas of absorbent lean solution and enrichment organic matter.
Further, the hypergravity absorber at least has the gas for the organic exhaust gas for being available for inputting the condensed processing
Body entrance, it is available for inputting the liquid inlet of the absorbent, is available for exporting the gas vent of the organic exhaust gas after purifying and is available for
The liquid outlet of the absorbent rich solution is exported, the hypergravity desorption device, which at least has, is available for vacuum system interface or input to blow
The gas access of scavenging body, it is available for inputting the liquid inlet of the absorbent rich solution, is available for the absorbent lean solution that output regenerates
Liquid outlet and be available for output rich in organic matter desorption gas gas vent, the liquid inlet of the hypergravity absorber and
Liquid outlet connects with the liquid outlet of the hypergravity desorption device and liquid inlet respectively, the gas of the hypergravity desorption device
Export and be interconnected with the VOC organic exhaust gas entrances of the condensation recovery unit.
By the design, the envelope of the absorbent can be formed between the hypergravity absorber and hypergravity desorption device
Closed loop loop.
Further, the hypergravity absorber and hypergravity desorption device may be selected from foregoing supergravity reactor, and
Its running parameter etc. also can be as mentioned before.
In some embodiments, in the desorption apparatus and vacuum system, heater, purge gas feed system
At least one connection, nationality to absorbent rich solution in desorption apparatus to carry out vacuum extraction, heating or purging.Wherein, heating dress
Putting to be located in the desorption apparatus, can also be located at outside desorption apparatus.
In some embodiments, the desorption gas outlet of the desorption apparatus is also with condensing recovery unit, CIU
Or at least one of oxidation processes connection, nationality with reclaim enrichment organic matter desorption gas in organic matter or by burning
The mode organics removals such as burning, oxidation, and avoid the pollution to the external world.
The absorption processing system of the VOC organic exhaust gas provided by the invention occupies little space, and energy consumption is low, and may be designed as
The portable structure of skid, more conducively the leakage onsite application in some pernicious gases.
Refer to shown in Fig. 1 be a kind of VOC organic exhaust gas in an of the invention exemplary embodiments hypergravity absorption processing
The process chart of method, it includes：
Pending VOC organic exhaust gas is subjected to cooling heat transferring cooling by heat exchanger, then condensed unit cools back
The organic component of at least part higher-value in the VOC organic exhaust gas is received, the VOC organic exhaust gas Jing Guo preliminary purification is defeated
Deliver in hypergravity absorber, fully contacted with the absorbent being passed through and complete absorption process, make in the VOC organic exhaust gas
At least part volatile organic matter is absorbed by absorbent, the tail gas qualified discharge after purification, after absorbing volatile organic matter
Absorbent forms absorbent rich solution；Caused absorbent rich solution is delivered in hypergravity desorption device after absorption process being completed, with
The purge gas of parsing fully contacts, and volatile organic matter is desorbed from the absorbent rich solution, then enters and blows
In scavenging body, the absorbent lean solution that is regenerated can be delivered in the hypergravity absorber and recycle.And contain volatility
The desorption gas of organic matter is transported to condensing unit to reclaim volatile organic matter, or can also be delivered to burning disposal system
System.
Technical scheme is illustrated in more detail with reference to exemplary embodiments.
In an exemplary embodiment, for the organic exhaust gas of VOC containing valuable higher one-component in chemical process
Processing, organic matter is on the one hand reclaimed as far as possible, while require that the discharge after exhaust-gas efficient absorption or burning disposal reaches corresponding
National standard.Canonical process is as follows：
1) waste gas for containing volatile organic matter (VOC) is condensed through coolings such as heat exchangers and reclaims lime set therein, VOC is dense
Waste gas after degree substantially reduces is passed through in high gravity rotating packed bed absorber, with ionic liquid absorbent in packing layer it is reverse
Contact, the organic component in VOC organic exhaust gas is absorbed by ionic liquid absorbent；Purified gas after efficient absorption is from super
Gravity machine gas vent exports, outer row or reuse；And the ionic liquid absorbent after wherein organic matter is absorbed from hypergravity machine
Draw, into ionic liquid absorbent rich solution；
2) by absorbent rich solution by conveying equipment for fluid substances input hypergravity regenerating unit in, using high-temperature gas (nitrogen/
Air) purging carries out desorption and regeneration to rich solution, and the VOC organic matters in rich solution are freed into gas phase；
Regenerate, exported from hypergravity regenerator, be absorbed agent lean solution after rich solution parsing；Absorbent regeneration returns overweight
Power absorber recycles；
Regeneration gas after stripping regenerable absorbent organic matter, containing the higher organic matter of concentration, it is transported to VOC organic exhaust gas
VOC organic matters therein are reclaimed in porch, again condensation.
Wherein：The ionic liquid absorbent also compounds organic/inorganic solvent.
The ionic liquid absorbent includes：Glyoxaline ion liquid, pyridine ionic liquid.The organic solvent bag
Include：Diesel oil, kerosene, 664 defoamers, propene carbonate, N- N-formyl morpholine Ns.The inorganic solvent includes：Water, sodium citrate, second
Sour sodium.
Another embodiment is related to a kind of baking oven hot waste gas in Production Process of Lithium Battery and carries out hypergravity absorption processing
Technique.
Specifically, NMP (N-methyl-2-pyrrolidone, 1-METHYLPYRROLIDONE) is because it is to adhesive PDVF
The advantages that dissolved dilution performance of (Kynoar) is good and generally selected by lithium ion battery, and lithium ion battery production in
Discharge the main component in waste gas.If to the NMP in waste gas without recycle, not only result in serious environmental pollution,
But also a large amount of wastes of raw material can be caused.
By taking the lithium battery production technology of certain lithium battery production firm as an example, the baking oven heat in its Production Process of Lithium Battery is useless
In gas (following abbreviation waste gas), NMP initial content is more than 2000ppm.First by the waste gas through thermal energy exchange in the present embodiment
System reclaims heat, reduces its temperature, and its temperature is reduced into 20 DEG C through cooling down condenser system, reclaims condensation therein
Liquid, NMP contents in waste gas is reduced to 300~600ppm, the waste gas through preliminary purification is sent into hypergravity time through discharging the mouth of pipe
Processing system is received, is existed with absorption water-NMP mixed solutions (startup absorbing liquid is water) being conveyed through circulating pump, coming from storage tank
Fully contacted in hypergravity machine, because of NMP and water infinitely dissolve, so as to reach waste gas purification effect, discharge waste gas NMP contents ＜
6ppm。
Waste gas cleaning system absorbing liquid in the present embodiment is water, is automatically controlled according to NMP contents in absorbing liquid, real
When supplement process water.After the NMP concentration in absorbing liquid circulating storage groove reaches 20%, product liquid storage tank is delivered to outside, in this way, big absolutely
Partial NMP is reclaimed, and reduces operating cost.
In the present embodiment, process water is used as absorbent, it is cheap, regeneration expense can be reduced without regeneration, simultaneously
The NMP aqueous solution after absorption can obtain useful nmp solvent through rectifying column concentration and recovery.But need to consider absorption
The concentration and dosage of the NMP aqueous solution, to reduce the energy consumption of later stage concentration.
It should be appreciated that described above is only the preferred embodiment of the present invention, for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (14)
- A kind of 1. absorption processing method of VOC organic exhaust gas, it is characterised in that including：(1) VOC organic exhaust gas is fully contacted in absorption plant with absorbent, made at least partly organic in the organic exhaust gas Thing is absorbed by absorbent and forms absorbent rich solution, the outside discharge if up to standard of the waste gas after purification；(2) the absorbent rich solution is entered desorption apparatus, and in desorption apparatus through vacuum extraction or heated separation or with Purge gas inversely contacts, and desorbs the organic matter in the absorbent rich solution, obtains the absorbent lean solution of regeneration, while will obtain The desorption gas of the enrichment organic matter obtained carries out condensation recovery, burning or oxidation processes；(3) the absorbent lean solution for the regeneration for being obtained step (2) inputs the absorption plant and recycled.
- 2. the absorption processing method of VOC organic exhaust gas according to claim 1, it is characterised in thatStep (1) specifically includes：The gas that organic exhaust gas after condensed processing is inputted to absorption plant respectively with absorbent enters Mouth and liquid inlet, make the organic exhaust gas fully be contacted in absorption plant with absorbent, so that in the organic exhaust gas At least part organic matter absorbed by absorbent, organic exhaust gas and absorbent rich solution after being purified, afterwards by after purification Organic exhaust gas exports from the gas vent of the absorption plant, and, the liquid discharge by absorbent rich solution from the absorption plant Mouth output；And/or step (2) specifically includes：The absorbent rich solution is inputted into desorption apparatus, and vacuum is carried out to absorbent rich solution Extracting, absorbent rich solution either heated or absorbent rich solution is inversely contacted with being passed through the purge gas of desorption apparatus, from And the organic matter in absorbent rich solution is desorbed, obtain the absorbent lean solution of regeneration and be enriched with the desorption gas of organic matter.
- 3. the absorption processing method of VOC organic exhaust gas according to claim 1 or 2, it is characterised in that step (1) is also wrapped Include：Before VOC organic exhaust gas is inputted into absorption plant, processing, and condensed unit are cooled down to VOC organic exhaust gas Condensation, at least part organic matter being separated and recovered from the VOC organic exhaust gas.
- 4. the absorption processing method of VOC organic exhaust gas according to claim 3, it is characterised in that：The absorption plant bag Include any one in supergravity reactor, packed tower and spray column；And/or the desorption apparatus include supergravity reactor, Any one in packed tower and absorption tower.
- 5. the absorption processing method of VOC organic exhaust gas according to claim 4, it is characterised in that：The hypergravity reaction Device includes RPB, deflector type hypergravity rotating device, helical duct hypergravity rotating device, fixed-rotor hypergravity rotation Any one in rotary device and rotating compact disc hypergravity rotating device or two or more combinations.
- 6. the absorption processing method of VOC organic exhaust gas according to claim 1, it is characterised in that step (3) is specifically wrapped Include：The cooling of the desorption gas rich in organic matter that step (2) is obtained is condensed and reclaims at least part organic matter therein, or Person, the desorption gas rich in organic matter that step (2) is obtained input CIU or oxidization processing system.
- 7. the absorption processing method of VOC organic exhaust gas according to claim 1, it is characterised in that：The absorbent is selected from It is capable of the absorbent of the organic matter in reversible absorption/parsing VOC organic exhaust gas for physically；And/or the purging Gas includes any one or two or more combinations in vapor, air, nitrogen and inert gas.
- 8. the absorption processing method of VOC organic exhaust gas according to claim 7, it is characterised in that：The absorbent includes Water, oily substance, ionic liquid or its compound, any one or two kinds in the aqueous solution or microemulsion containing surfactant with On combination；The oily substance includes any one or two or more combinations in lubricating oil, diesel oil and kerosene.
- A kind of 9. absorption processing system of VOC organic exhaust gas, it is characterised in that including：Absorption plant, to make VOC organic exhaust gas fully be contacted with absorbent, so that at least part VOC in organic exhaust gas Organic matter is absorbed by absorbent, obtains the waste gas after absorbent rich solution and purification；AndDesorption apparatus, to make the evacuated processing of the absorbent rich solution of absorption plant output or heat-treated or with blowing Scavenging body inversely contacts, so that the organic matter desorption in the absorbent rich solution, obtains absorbent lean solution and the enrichment of regeneration The desorption gas of organic matter.
- 10. the absorption processing system of VOC organic exhaust gas according to claim 9, it is characterised in that single including condensation recovery Member, the condensation recovery unit include condensing heat exchanger, at least VOC organic exhaust gas to be cooled, and make the VOC after cooling At least part organic matter in organic exhaust gas is condensed into liquid or solid-state, and exports the waste gas after condensed processing.
- 11. the absorption processing system of VOC organic exhaust gas according to claim 9, it is characterised in that：The absorption plant bag Include any one in supergravity reactor, packed tower and spray column；And/or the desorption apparatus include supergravity reactor, Any one in packed tower and absorption tower.
- 12. the absorption processing system of VOC organic exhaust gas according to claim 11, it is characterised in that：The hypergravity is anti- Device is answered to include RPB, deflector type hypergravity rotating device, helical duct hypergravity rotating device, fixed-rotor hypergravity Any one in rotating device and rotating compact disc hypergravity rotating device or two or more combinations.
- 13. the absorption processing system of VOC organic exhaust gas according to claim 9, it is characterised in that：The desorption apparatus with At least one of vacuum system, heater, purge gas feed system connect.
- 14. the absorption processing system of VOC organic exhaust gas according to claim 9, it is characterised in that：The desorption apparatus Desorption gas outlet is also connected with condensing at least one of recovery unit, CIU or oxidation processes.
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| CN201610518726.3A CN107569973A (en) | 2016-07-05 | 2016-07-05 | The absorption processing method and system of VOC organic exhaust gas |
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| CN201610518726.3A CN107569973A (en) | 2016-07-05 | 2016-07-05 | The absorption processing method and system of VOC organic exhaust gas |
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| CN108499323A (en) * | 2018-06-11 | 2018-09-07 | 西安交通大学 | A kind of organic combustible gas purifying plant and method |
| CN108531213A (en) * | 2018-04-26 | 2018-09-14 | 杭州立佳环境服务有限公司 | A kind of purification recovery process of VOCs machine oil elution absorbing liquid |
| CN109432938A (en) * | 2018-12-30 | 2019-03-08 | 山东铭浩环保科技有限公司 | A kind of alcohol industry distillation unit VOC waste gas recovery processing method |
| CN109821358A (en) * | 2019-04-12 | 2019-05-31 | 河南省化工研究所有限责任公司 | A kind of resource utilization method and device of organic volatile (VOCs) exhaust gas |
| CN110090531A (en) * | 2019-05-22 | 2019-08-06 | 中国石油集团东北炼化工程有限公司锦州设计院 | A kind of efficient refinery's organic waste gas treatment device containing benzene and processing method |
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| CN111871151A (en) * | 2020-07-22 | 2020-11-03 | 循天能源环境科技有限公司 | Absorption treatment method for VOCs organic waste gas |
| CN114471084A (en) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | Aromatic hydrocarbon-containing organic waste gas absorbent and preparation method and application thereof |
| CN114887455A (en) * | 2022-04-22 | 2022-08-12 | 北京化工大学 | Device and method for absorbing and desorbing HCl by using eutectic solvent |
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| CN108499323A (en) * | 2018-06-11 | 2018-09-07 | 西安交通大学 | A kind of organic combustible gas purifying plant and method |
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| CN111871151A (en) * | 2020-07-22 | 2020-11-03 | 循天能源环境科技有限公司 | Absorption treatment method for VOCs organic waste gas |
| CN114471084A (en) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | Aromatic hydrocarbon-containing organic waste gas absorbent and preparation method and application thereof |
| CN114887455A (en) * | 2022-04-22 | 2022-08-12 | 北京化工大学 | Device and method for absorbing and desorbing HCl by using eutectic solvent |
| CN115445389A (en) * | 2022-08-02 | 2022-12-09 | 中国石油化工股份有限公司 | VOCs absorbent and method for absorbing and treating VOCs waste gas by using same |
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