CN108939861A - A kind of processing method of 2,4-D exhaust gas - Google Patents

A kind of processing method of 2,4-D exhaust gas Download PDF

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CN108939861A
CN108939861A CN201810852637.1A CN201810852637A CN108939861A CN 108939861 A CN108939861 A CN 108939861A CN 201810852637 A CN201810852637 A CN 201810852637A CN 108939861 A CN108939861 A CN 108939861A
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exhaust gas
gas
exhaust
chlorine
processing
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CN108939861B (en
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王卫星
徐占平
鲁志东
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Changfeng Chemical (Jilin) Co.,Ltd.
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Jiangsu Changfeng Agrochemical Co Ltd
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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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • 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
    • B01D53/1406—Multiple stage absorption
    • 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
    • B01D53/1456—Removing acid components
    • 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
    • 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
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • 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
    • B01D53/26—Drying gases or vapours
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/26—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/202—Single element halogens
    • B01D2257/2025—Chlorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2045—Hydrochloric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/206—Organic halogen compounds
    • B01D2257/2064—Chlorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7027—Aromatic hydrocarbons
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
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  • Health & Medical Sciences (AREA)
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  • Treating Waste Gases (AREA)

Abstract

The present invention relates to technical field of waste gas treatment, and in particular to the processing method of one kind 2,4-D exhaust gas.The following steps are included: combustion of hydrogen generates HCL gas after the HCL gas of chlorination reaction discharge and excessive chlorine are collected, the concentrated hydrochloric acid that water formation mass fraction is 26%-32% is dissolved in HCL gas to be electrolysed, recycle electrolytic high concentration chlorine and hydrogen, the chlorine that system is discharged, HCL gas, toluene, chlorophenesic acid and trichlorophenol, 2,4,6,-T are handled using tertiary effluent falling film absorption after collecting and pass through the processing of second level lye absorption tower, by the trichlorophenoxyacetic acid of dry discharge, sodium chloride, it is handled after HCl gas collection by second level lye absorption tower, it is passed through spray column again after being passed through the processing of second level lye absorption tower after the mixing of pretreated tail gas, it absorbs in exhaust gas and is discharged after remaining pollution factor by pipeline to high exhaust tube.The present invention has the advantages that exhaust-gas treatment effect is good, economical environment-protective.

Description

A kind of processing method of 2,4-D exhaust gas
Technical field
The present invention relates to technical field of waste gas treatment, and in particular to the processing method of one kind 2,4-D exhaust gas.
Background technique
2,4-D is similar with auxin or other plant growth regulator, stimulating growth, rejuvenation cell, root, the Ye Jun of plant It is absorbable, plant metabolism is influenced by stimulation nucleic acid and protein synthesis etc., belongs to hypotoxicity plant growth regulator, in plant In show polar translocation, because the special physiological action of 2,4-D make its biological field have irreplaceable status.
And 2,4-D equally have certain toxicity, there is certain harm to human and environment, it can take in or inhale through skin To the stimulation of eyes, skin after receipts, contacting repeatedly has detrimental effect to liver, heart, can cause to faint from fear.It is applied to some mesh 2,4-D of the different number in range are marked, by the movement of empty gas and water and soil, within a few houres or several days, so that it may whole It is distributed in a environment.The steam drift of more volatile 2,4-D esters can lead to air pollution and damage crops, these products Replaced not volatile 2,4-D derivative.Aquatic weed is controlled using 2,4-D may cause irrigation and drinking water source Pollution, unsuitable disposal technology can also cause environmental pollution.
Therefore, the processing of 2,4-D exhaust gas is just particularly important, the exhaust gas generated in 2,4-D production processes mainly wraps HCl, the excessive Cl generated after chloride containing reaction with nitrogen degasification process2, organic liquid phase is discharged into rectifying still negative pressure distillation process Generating chlorophenesic acid, trichlorophenol, 2,4,6,-T, the exhaust gas generated in the acidification of alkalinity mother liquor with high salt, extraction process is mainly toluene, HCl etc., And the exhaust gas that common waste gas processing method does not all generate different parts is absorbed accordingly, and is returned in available gas Debit face is well solved not yet.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the processing methods of one kind 2,4-D exhaust gas.The present invention Have the advantages that exhaust-gas treatment effect is good, economical environment-protective.
The purpose of the present invention is achieved through the following technical solutions:
The processing method of one kind 2,4-D exhaust gas, including pre-process and focus on, the pretreatment the following steps are included:
S1, it is fired after drying, purified treatment with hydrogen after collecting the HCL gas of chlorination reaction discharge and excessive chlorine It burns and generates HCL gas, HCL gas is dissolved in water and forms the concentrated hydrochloric acid that mass fraction is 26%-32%, and obtained concentrated hydrochloric acid is passed through It is electrolysed after cooler, active carbon filter, recycles electrolytic high concentration chlorine and hydrogen；
S2, tertiary effluent is used after collecting the chlorine of system discharge, HCL gas, toluene, chlorophenesic acid and trichlorophenol, 2,4,6,-T Falling film absorption handles and passes through the processing of second level lye absorption tower；
S3, will pass through at second level lye absorption tower after the trichlorophenoxyacetic acid, sodium chloride, HCl gas collection of dry discharge Reason；
The centralized processing, comprising the following steps:
T1, it is passed through again after S2 and S3 step is passed through the processing of second level lye absorption tower after pretreated tail gas mixes Spray column comes into full contact with the misty water droplet sprayed in exhaust gas and tower, absorbs remaining pollution factor in exhaust gas；
T2, the exhaust gas of spray column discharge is discharged by pipeline to high exhaust tube.
Further, the step S1 purified treatment are as follows: first by the exhaust gas of collection by equipped with active carbon packed tower into Row adsorption treatment, then treated exhaust gas is dusted to get purified exhaust gas is arrived by belt deduster.
Further, the place being electrolysed in the step S1 is electrolysis of hydrochloric acid slot.
Further, the top on second level lye absorption tower is provided with washing section, removes the lye that exhaust gas carries.
Further, the height of the step T2 high exhaust tube is greater than 21m.
The beneficial effects of the present invention are:
The present invention first respectively pre-processes exhaust gas caused by different production sections, handles to adaptation to local conditions different kinds The exhaust gas of class, then pretreated exhaust gas is put together and carries out unified secondary treatment, last uniform effluent.When pretreatment, Due to generating a large amount of HCL and chlorine in chlorine reaction, a large amount of lye can be consumed if being absorbed with lye, causes cost Raising, therefore by the HCL gas generated after chlorination reaction and excessive chlorine by activated carbon adsorber adsorption treatment, logical Belt deduster dedusting is crossed, some impurity particles are removed, obtains the higher chlorine of purity, promotes the burning of chlorine and hydrogen anti- It answers, concentrated hydrochloric acid is electrolysed in electrolysis of hydrochloric acid slot, the chlorine and hydrogen of the high concentration of generation respectively enter respective from yin, yang two-stage Processing unit, can Infinite Cyclic use, both handled exhaust gas, protected environment, but saved processing exhaust gas cost；The present invention It is provided with washing section using on second level lye absorption tower top, for removing the lye carried in exhaust gas, is reduced unnecessary Impurity.
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below, but protection scope of the present invention is not It is confined to as described below.
Embodiment 1
The processing method of one kind 2,4-D exhaust gas, including pre-process and focus on, the pretreatment the following steps are included:
After drying by being equipped with active carbon after S1, the HCL gas that chlorination reaction is discharged and the collection of excessive chlorine Packed tower carries out adsorption treatment, then exhaust gas is dusted by belt deduster by treated, by purified exhaust gas and hydrogen Gas burning generates HCL gas, and HCL gas is dissolved in water and forms the concentrated hydrochloric acid that mass fraction is 26%-32%, the concentrated hydrochloric acid that will be obtained Be electrolysed in electrolysis of hydrochloric acid slot after subcooler, active carbon filter, recycle electrolytic high concentration chlorine and Hydrogen；
S2, tertiary effluent is used after collecting the chlorine of system discharge, HCL gas, toluene, chlorophenesic acid and trichlorophenol, 2,4,6,-T Falling film absorption handles and passes through the processing of second level lye absorption tower；
S3, will pass through at second level lye absorption tower after the trichlorophenoxyacetic acid, sodium chloride, HCl gas collection of dry discharge Reason；
The centralized processing, comprising the following steps:
T1, it is passed through again after S2 and S3 step is passed through the processing of second level lye absorption tower after pretreated tail gas mixes Spray column comes into full contact with the misty water droplet sprayed in exhaust gas and tower, absorbs remaining pollution factor in exhaust gas；
T2, the exhaust gas of spray column discharge is discharged by pipeline to high exhaust tube.
The step S1 purified treatment are as follows: first carry out the exhaust gas of collection at absorption by the packed tower equipped with active carbon Reason, then treated exhaust gas is dusted to get purified exhaust gas is arrived by belt deduster.
Specifically, the top on second level lye absorption tower is provided with washing section, removes the lye that exhaust gas carries.
Specifically, the height of the step T2 high exhaust tube is greater than 21m.
Embodiment 2
The processing method of one kind 2,4-D exhaust gas, including pre-process and focus on, the pretreatment the following steps are included:
After drying by being equipped with active carbon after S1, the HCL gas that chlorination reaction is discharged and the collection of excessive chlorine Packed tower carries out adsorption treatment, then exhaust gas is dusted by belt deduster by treated, by purified exhaust gas and hydrogen Gas burning generates HCL gas, and HCL gas is dissolved in water and forms the concentrated hydrochloric acid that mass fraction is 26%-32%, the concentrated hydrochloric acid that will be obtained Be electrolysed in electrolysis of hydrochloric acid slot after subcooler, active carbon filter, recycle electrolytic high concentration chlorine and Hydrogen；
S2, tertiary effluent is used after collecting the chlorine of system discharge, HCL gas, toluene, chlorophenesic acid and trichlorophenol, 2,4,6,-T Falling film absorption handles and passes through the processing of second level lye absorption tower；
S3, will pass through at second level lye absorption tower after the trichlorophenoxyacetic acid, sodium chloride, HCl gas collection of dry discharge Reason；
The centralized processing, comprising the following steps:
T1, it is passed through again after S2 and S3 step is passed through the processing of second level lye absorption tower after pretreated tail gas mixes Spray column comes into full contact with the misty water droplet sprayed in exhaust gas and tower, absorbs remaining pollution factor in exhaust gas；
T2, the exhaust gas of spray column discharge is discharged by pipeline to high exhaust tube.
The step S1 purified treatment are as follows: first carry out the exhaust gas of collection at absorption by the packed tower equipped with active carbon Reason, then treated exhaust gas is dusted to get purified exhaust gas is arrived by belt deduster.
Specifically, the top on second level lye absorption tower is provided with washing section, removes the lye that exhaust gas carries.
Specifically, the height of the step T2 high exhaust tube is greater than 21m.
Embodiment 3
The processing method of one kind 2,4-D exhaust gas, including pre-process and focus on, the pretreatment the following steps are included:
After drying by being equipped with active carbon after S1, the HCL gas that chlorination reaction is discharged and the collection of excessive chlorine Packed tower carries out adsorption treatment, then exhaust gas is dusted by belt deduster by treated, by purified exhaust gas and hydrogen Gas burning generates HCL gas, and HCL gas is dissolved in water and forms the concentrated hydrochloric acid that mass fraction is 26%-32%, the concentrated hydrochloric acid that will be obtained Be electrolysed in electrolysis of hydrochloric acid slot after subcooler, active carbon filter, recycle electrolytic high concentration chlorine and Hydrogen；
S2, tertiary effluent is used after collecting the chlorine of system discharge, HCL gas, toluene, chlorophenesic acid and trichlorophenol, 2,4,6,-T Falling film absorption handles and passes through the processing of second level lye absorption tower；
S3, will pass through at second level lye absorption tower after the trichlorophenoxyacetic acid, sodium chloride, HCl gas collection of dry discharge Reason；
The centralized processing, comprising the following steps:
T1, it is passed through again after S2 and S3 step is passed through the processing of second level lye absorption tower after pretreated tail gas mixes Spray column comes into full contact with the misty water droplet sprayed in exhaust gas and tower, absorbs remaining pollution factor in exhaust gas；
T2, the exhaust gas of spray column discharge is discharged by pipeline to high exhaust tube.
The step S1 purified treatment are as follows: first carry out the exhaust gas of collection at absorption by the packed tower equipped with active carbon Reason, then treated exhaust gas is dusted to get purified exhaust gas is arrived by belt deduster.
Specifically, the top on second level lye absorption tower is provided with washing section, removes the lye that exhaust gas carries.
Specifically, the height of the step T2 high exhaust tube is greater than 21m.
It is monitored by the exhaust gas constituents discharged to embodiment 1- embodiment 3, acquired results are as shown in table 1 below:
The monitoring method of exhaust gas constituents are as follows: GB16297-1996 " discharge standard of air pollutants "
Project Embodiment 1 Embodiment 2 Embodiment 3
Hydrogen chloride (mg/m3) 21.8 21.4 22.1
Chlorine (mg/m3) 0.42 0.37 0.39
Toluene (mg/m3) 0.075 0.071 0.072
Phenols (mg/m3) 24.2 23.4 23.6
Table 1
It is optimum embodiment by upper table 1 it can be seen that the every testing result of embodiment 2 is most excellent.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention It is interior.

Claims (5)

1. one kind 2, the processing method of 4-D exhaust gas, which is characterized in that including pre-processing and focusing on, the pretreatment includes Following steps:
S1, the HCL gas that chlorination reaction is discharged and excessive chlorine are raw with combustion of hydrogen after drying, purified treatment after collecting At HCL gas, HCL gas is dissolved in water and forms the concentrated hydrochloric acid that mass fraction is 26%-32%, by obtained concentrated hydrochloric acid through supercooling It is electrolysed after device, active carbon filter, recycles electrolytic high concentration chlorine and hydrogen；
S2, tertiary effluent falling liquid film is used after collecting the chlorine of system discharge, HCL gas, toluene, chlorophenesic acid and trichlorophenol, 2,4,6,-T It absorbs and handles and handled by second level lye absorption tower；
S3, it will be handled after the trichlorophenoxyacetic acid, sodium chloride, HCl gas collection of dry discharge by second level lye absorption tower；
The centralized processing, comprising the following steps:
T1, it is passed through spray again after S2 and S3 step is passed through the processing of second level lye absorption tower after pretreated tail gas mixes Tower comes into full contact with the misty water droplet sprayed in exhaust gas and tower, absorbs remaining pollution factor in exhaust gas；
T2, the exhaust gas of spray column discharge is discharged by pipeline to high exhaust tube.
2. a kind of processing method of 2,4-D exhaust gas according to claim 1, which is characterized in that at the step S1 purification Reason are as follows: the exhaust gas of collection is first subjected to adsorption treatment by the packed tower equipped with active carbon, then exhaust gas passes through band by treated Formula deduster is dusted to arrive purified exhaust gas.
3. a kind of processing method of 2,4-D exhaust gas according to claim 1, which is characterized in that be electrolysed in the step S1 Place be electrolysis of hydrochloric acid slot.
4. a kind of processing method of 2,4-D exhaust gas according to claim 3, which is characterized in that the second level lye absorbs The top of tower is provided with washing section, removes the lye that exhaust gas carries.
5. a kind of processing method of 2,4-D exhaust gas according to claim 3, which is characterized in that the step T2 high exhaust The height of cylinder is greater than 21m.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109503331A (en) * 2019-01-23 2019-03-22 淮南师范学院 A method of high-purity hydrogen chloride gas is prepared by 2,4 dichloro phenol by-product
CN111995518A (en) * 2020-09-11 2020-11-27 三峡大学 Method for producing chlorinated fatty acid methyl ester by resource utilization of byproduct hydrochloric acid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001145A1 (en) * 1977-09-05 1979-03-21 SOLVAY & Cie (Société Anonyme) Method for the selective recovery of chlorine and carbon dioxide from a gas mixture
CN103111166A (en) * 2013-03-08 2013-05-22 山东科源化工有限公司 Method for treating 2, 4-D waste gas
CN107540578A (en) * 2016-06-27 2018-01-05 宁夏海诚电化信息科技有限公司 A kind of adjacent trifluoromethoxy benzenesulfonyl isocyanate production technology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001145A1 (en) * 1977-09-05 1979-03-21 SOLVAY & Cie (Société Anonyme) Method for the selective recovery of chlorine and carbon dioxide from a gas mixture
CN103111166A (en) * 2013-03-08 2013-05-22 山东科源化工有限公司 Method for treating 2, 4-D waste gas
CN107540578A (en) * 2016-06-27 2018-01-05 宁夏海诚电化信息科技有限公司 A kind of adjacent trifluoromethoxy benzenesulfonyl isocyanate production technology

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109503331A (en) * 2019-01-23 2019-03-22 淮南师范学院 A method of high-purity hydrogen chloride gas is prepared by 2,4 dichloro phenol by-product
CN109503331B (en) * 2019-01-23 2021-11-30 淮南师范学院 Method for preparing high-purity hydrogen chloride gas from 2, 4-dichlorophenol byproduct
CN111995518A (en) * 2020-09-11 2020-11-27 三峡大学 Method for producing chlorinated fatty acid methyl ester by resource utilization of byproduct hydrochloric acid

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