CN107511042A - A kind of processing method for removing benzene homologues in petrochemical industry waste gas - Google Patents

A kind of processing method for removing benzene homologues in petrochemical industry waste gas Download PDF

Info

Publication number
CN107511042A
CN107511042A CN201710929271.9A CN201710929271A CN107511042A CN 107511042 A CN107511042 A CN 107511042A CN 201710929271 A CN201710929271 A CN 201710929271A CN 107511042 A CN107511042 A CN 107511042A
Authority
CN
China
Prior art keywords
gas
benzene homologues
waste gas
mixed
tungsten wire
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.)
Granted
Application number
CN201710929271.9A
Other languages
Chinese (zh)
Other versions
CN107511042B (en
Inventor
缪琼华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Fuyang he chemical fiber auxiliary Co., Ltd
Original Assignee
缪琼华
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 缪琼华 filed Critical 缪琼华
Priority to CN201710929271.9A priority Critical patent/CN107511042B/en
Publication of CN107511042A publication Critical patent/CN107511042A/en
Application granted granted Critical
Publication of CN107511042B publication Critical patent/CN107511042B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • 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
    • 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
    • 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
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

Abstract

The invention discloses a kind of processing method for removing benzene homologues in petrochemical industry waste gas, waste gas passes sequentially through residual-heat exchanger, gas superheat protection device, thermal type gas quality flow meter, mixed gas flow regulating valve, fiber bag precipitator, tungsten wire circle surface active ozone Oxidation Treatment device, gas fume washing purifying column, air-introduced machine and handled.The invention make use of ozone in surface active characteristic specific to some metal simple-substance surfaces, when tungsten wire coil is in the state of energization is red-hot, ozone can discharge activation oxygen atom rapidly on its surface, a kind of Strong oxdiative environment can be produced in tungsten metal surface, when the molecule containing conjugation C C keys such as benzene homologues is under such a Strong oxdiative environment, its conjugation C C key can be activated oxygen atom and break, and benzene homologues molecule is finally oxidized and is decomposed into H2O and CO2Deng inorganic molecule, so as to reach the purpose of benzene homologues in removing exhaust gas.

Description

A kind of processing method for removing benzene homologues in petrochemical industry waste gas
Technical field
The present invention relates to a kind of processing method for removing benzene homologues in petrochemical industry waste gas, the waste gas belonged in environmental protection Process field.
Background technology
Benzene homologues are the general names of benzene and its derivative.Sensu lato benzene homologues include whole aromatic compounds, in the narrow sense Benzene homologues refer in particular to having containing for certain distribution and do harm to huamn body in human being's production living environment including BTEX Benzene ring compound.
Refinement of the mankind to benzene homologues obtains can trace back to for 19th century earliest.1825, British scientist faraday （Faraday）With the benzene of method isolated higher degree from the thermal cracking product of the similar substances such as fish oil of distillation, claim it For " the heavy carbon compound of hydrogen ", and determine its basic physical property and chemical composition.Hereafter toluene, diformazan and are found that in succession The materials such as benzene, and Uniform Name is benzene homologues.The industrial production of benzene homologues starts from 1865, is reclaimed from coal tar.With The expansion of its purposes, yield constantly rises, and has become one of large tonnage product of the world ten to nineteen thirty.With benzene homologues Production and application, its polluting property and toxicologic study to air gradually attract attention extensively, 70 years last century Before and after generation, the monitoring and research of the thing pollution of benzene in air system are increasingly becoming focus.
Benzene homologues have serious negative effect to region particularly city atmospheric environment.Due to most benzene homologues（As benzene, Toluene etc.）With stronger volatility, it is easy to evaporate among gas under normal temperature condition and forms VOC （VOCs）, VOCs gaseous contaminations can be caused.For example BTEX is widely used in oil as the organic solvent being industrially commonly used The industries such as paint, degreasing, dry-cleaning, printing, weaving, synthetic rubber.Can be due to waving during BTEX production, accumulating and use Send out and cause atmosphere pollution.Photochemical reaction activity is higher in an atmosphere by BTEX, to photooxidant in air（Such as ozone and peroxide Acetyl group nitrate etc.）Formation with secondary organic aerosol has suitable effect.
Mainly there are two kinds of stationary source and moving source in the source of benzene homologues pollution.Moving source mainly has automobile, steamer and aircraft Deng the discharge gas using oil product as the vehicles of fuel；The species of stationary source is extremely more, predominantly petrochemical process process Effluent and the various occasions using organic solvent with storage facilities etc., such as spray painting, printing, metal degreasing and degreasing, bonding Agent, pharmacy, plastics, coating and rubber processing etc..
According to the technological process of production and the difference of the discharging modes of waste gas, benzene homologues have different control technologies.At present It is widely used and study and more have：Absorption method, heat damage method, condensation method, absorption process etc., the new control developed in recent years Technology processed includes：Biomembrance process, light decomposition method, plasma decomposition, ozone decomposed method etc..
（1）Absorption method：
With porous solid treatment fluid mixture, one or more of components contained therein are made to be enriched in the surface of solids, and with The process of other component separation is referred to as adsorbing.Absorption method is mainly used in the purification of low concentration high flux benzene homologues.
（2）Heat damage method：
Heat damage method is current applies than benzene homologues administering method wide, that research is more, especially suitable for containing low concentration The waste gas of benzene homologues.This method can be divided into direct flame combustion and catalysis is burnt, and its process is complicated and may include a series of Decomposition, polymerization and radical reaction.And most important benzene homologues heat damage method mechanism includes oxidation, thermal cracking and thermal decomposition, heat Destruction method is based on the progress of this mechanism.
（3）Condensation method：
Condensation method is that have different saturated vapor pressures this property at different temperatures using material, using reduce system temperature or System pressure is improved, the process for condensing the benzene homologues in steam condition and being separated from waste gas.
（4）Absorption process：
The characteristics of absorption process can mainly be dissolved each other using benzene homologues with most of oily substance, with the oils of higher boiling, low-steam pressure The benzene homologues in waste gas are absorbed as absorbent, common absorber is padding washing absorption tower.
（5）Biomembrance process：
Microorganism is exactly fixedly attached to porous medium filler surface by so-called biomembrance process, and makes dusty gas in packed bed Biological treatment is carried out in layer, can be by contaminant removal therein, and be allowed to degrade in space.Volatile organic contaminant is inhaled Apparent gap is attached to, is consumed by the Institute of Micro-biology in space, and be degraded into CO2、H2O and neutral salt.
At present, the waste gas benzene series substance treating method that China generally uses, generally existing initial investment is big, operation and maintenance cost The shortcomings of height, technical sophistication, and its treatment effect is also difficult to meet increasingly strict emission request.For this reason, it may be necessary to find new Method and approach solve this problem.
The content of the invention
In order to solve many deficiencies of the prior art, the invention provides one kind to remove benzene homologues in petrochemical industry waste gas Processing method, the petrochemical industry waste gas containing benzene homologues enters residual-heat exchanger by gas piping, herein by heat exchange Effect makes the waste gas of overheat be cooled and stably, and obtained after-heat is available for utilizing, and the outlet of residual-heat exchanger leads to Gas piping connection gas superheat protection device is crossed, its effect is when residual-heat exchanger failure or the EGT after heat exchange When still too high, can temporarily disconnected gas circuit, play a part of protect back-end processing device, the outlet of gas superheat protection device leads to Gas piping connection thermal type gas quality flow meter is crossed, real-time monitoring record, hot type can be carried out to information such as exhaust gas flow, flow velocitys The outlet of gas mass flow gauge connects mixed gas flow regulating valve by gas piping, is adjusted by the method for importing air The actual concentrations of benzene homologues in waste gas, and accurate dilution cooling is carried out to waste gas, the outlet of mixed gas flow regulating valve leads to Gas piping connection fiber bag precipitator is crossed, the particulate pollutant in waste gas is removed at this, prevents from wearing or blocking back-end processing Device, the outlet of fiber bag precipitator connect tungsten wire circle surface active-ozone Oxidation Treatment device, tungsten wire circle by gas piping The outlet of surface active-ozone Oxidation Treatment device by gas piping connect gas fume washing purifying column, at this to processing after Waste gas carries out further water washing cleaning and cooling, and the outlet of gas fume washing purifying column connects air-introduced machine by gas piping, drawn The outlet of blower fan connects atmospheric environment by gas piping.
Wherein, tungsten wire circle surface active-ozone Oxidation Treatment device is by gas pre-mixed area and oxidation reaction zone two parts group Into bottom of device is provided with air intake valve, and air intake valve rear end is connected to ultra-fine filter screen by gas piping, and ultra-fine filter screen rear end is by gas Body pipeline is connected to gas pre-mixed four-way valve, meanwhile, ozone generator and nitrogen storage tank are also connected to gas by gas piping respectively Body premixes four-way valve, and the gas pre-mixed four-way valve port of export is connected to mixed gas shower nozzle by gas piping, on mixed gas shower nozzle Side is provided with 1 set of metal tungsten wire circle, and metal tungsten wire circle is powered by 1 voltage-stabilized power supply outside device, at the top of device Provided with drain tap；Petrochemical industry waste gas containing benzene homologues passes through tungsten wire circle surface active-ozone Oxidation Treatment bottom of device Air intake valve enter processing unit inside, after the fine filtering of ultra-fine filter screen thoroughly removes granule foreign, into gas Four-way valve is premixed, meanwhile, also enter gas by the ozone gas of ozone generator generation and by the nitrogen of nitrogen storage tank supply Four-way valve is premixed, pending waste gas, ozone and nitrogen are in gas pre-mixed four-way valve according to the volume ratio being previously set（It is useless Gas, O3、N2Ratio be respectively 28.7%, 31.1% and 40.2%）It is sufficiently mixed, the gas after being well mixed is sprayed by mixed gas For head uniformly at injection to metal tungsten wire circle, metal tungsten wire circle enters the red-hot state that is powered under the power supply of voltage-stabilized power supply, now, mixes The ozone closed in gas discharges rapidly activation oxygen atom in tungsten coil surface, and is locally producing a kind of Strong oxdiative ring Border, when the benzene homologues molecule containing conjugation C-C keys in waste gas is under such a Strong oxdiative environment, it is conjugated C-C key meetings It is activated oxygen atom to break, benzene homologues molecule is finally oxidized and is decomposed into H2O and CO2Deng inorganic molecule, so as to reach removing exhaust gas The purpose of middle benzene homologues, the waste gas after purified treatment is discharged by the drain tap at the top of device, and enters next processing work Sequence.Wherein, because benzene homologues are combustible, and ozone can form combustion adjuvant after oxygen atom is discharged --- and oxygen, the two is mixed There is the danger exploded after conjunction, therefore be mixed into nitrogen as shielding gas into waste gas in advance, explosion-proof can be played.
Wherein, the working pressure range of tungsten wire circle surface active-ozone Oxidation Treatment device is 0.055 ~ 0.75MPa, work It is 250 ~ 700 DEG C to make temperature range, dischargeable capacity 230m3。
Wherein, tungsten wire circle surface active-ozone Oxidation Treatment device, the surface temperature of metal tungsten wire circle at work are about 2600 DEG C, operating voltage 380V, its W content is more than 99.95%.
Wherein, tungsten wire circle surface active-ozone Oxidation Treatment device, its gas pre-mixed four-way valve enter one using three and go out knot Structure, maximum pressure-bearing are 1.05MPa, and operating temperature range is 105 ~ 850 DEG C.
Waste gas after being handled by this method, the removal efficiency of its benzene homologues is up to 99.6%.
The advantage of the invention is that：
（1）The present invention has broken away from the governance model of benzene homologues in existing petrochemical industry waste gas, and creative make use of ozone to exist Surface active characteristic specific to some metal simple-substance surfaces, when tungsten wire coil is in the state of energization is red-hot, ozone exists Its surface can discharge activation oxygen atom rapidly, a kind of Strong oxdiative environment can be produced in tungsten metal surface, when benzene homologues etc. When molecule containing conjugation C-C keys is under such a Strong oxdiative environment, its conjugation C-C key can be activated oxygen atom and break, And finally it is oxidized and is decomposed into H2O and CO2Deng inorganic molecule.This method has preferable oxidation Decomposition effect to benzene homologues, is a kind of Very targetedly processing method, its treatment effeciency can reach 98.9%.
（2）On the one hand the present invention greatly reduces in the process of running without using any chemical agent and purchases processing material Caused cost, on the other hand also prevent to introduce the risk for endangering bigger pollutant.
（3）Invention applies multiple gases pre-mixed technology, can realize the advance uniformly mixing of reaction mass, significantly The reaction efficiency of raising.
（4）Because benzene homologues are combustible, and ozone can form combustion adjuvant after oxygen atom is discharged --- oxygen, the two There is the danger exploded after mixing.Therefore, the system has especially used nitrogen effectively to exclude the wind that explodes as shroud gas Danger.
（5）The technology of the present invention route is advanced, and occupation area of equipment is smaller, and treatment effect is good, operation expense It is very low, be advantageous to a wide range of popularization and application.
Brief description of the drawings
Fig. 1 is the equipment schematic diagram of the present invention.
In figure：1- residual-heat exchangers, 2- gas superheats protection device, 3- thermal type gas quality flow meters, 4- mixed gas Flow control valve, 5- fiber bag precipitators, 6- tungsten wire circles surface active-ozone Oxidation Treatment device, 7- gas fume washings purifying column, 8- air-introduced machines
Fig. 2 is the schematic diagram of tungsten wire circle surface active-ozone Oxidation Treatment device.
The ultra-fine filter screen of 61- air intake valves, 62-, the gas pre-mixed four-way valves of 63-, 64- ozone generators, 65- nitrogen storage tanks, 66- mixed gas shower nozzle, 67- metals tungsten wire circle, 68- voltage-stabilized power supplies, 69- drain taps.
Embodiment
As shown in figure 1, remove the processing method of benzene homologues in petrochemical industry waste gas, the petrochemical industry waste gas containing benzene homologues Residual-heat exchanger 1 is entered by gas piping, the waste gas of overheat is cooled and stably by heat exchange action herein, and Obtained after-heat is available for utilizing, and the outlet of residual-heat exchanger 1 connects gas superheat protection device 2 by gas piping, its Effect be when the failure of residual-heat exchanger 1 or the EGT after heat exchange remain unchanged too high, can temporarily disconnected gas circuit, play guarantor The effect of back-end processing device is protected, the outlet of gas superheat protection device 2 connects thermal type gas quality flow by gas piping Meter 3, real-time monitoring record can be carried out to information such as exhaust gas flow, flow velocitys, the outlet of thermal type gas quality flow meter 3 passes through gas Pipeline connection mixed gas flow regulating valve 4, the method by importing air adjust the actual concentrations of benzene homologues in waste gas, and right Waste gas carries out accurate dilution cooling, and the outlet of mixed gas flow regulating valve 4 connects fiber bag precipitator by gas piping 5, the particulate pollutant in waste gas is removed at this, prevents from wearing or blocks back-end processing device, the outlet of fiber bag precipitator 5 leads to Cross gas piping connection tungsten wire circle surface active-ozone Oxidation Treatment device 6, tungsten wire circle surface active-ozone Oxidation Treatment dress The outlet for putting 6 connects gas fume washing purifying column 7 by gas piping, and carrying out further water to the waste gas after processing at this cleans Change and cooling, the outlet of gas fume washing purifying column 7 connect air-introduced machine 8 by gas piping, the outlet of air-introduced machine 8 passes through flue Road connects atmospheric environment；Wherein, tungsten wire circle surface active-ozone Oxidation Treatment device 6 is by gas pre-mixed area and oxidation reaction zone Two parts form, and bottom of device is provided with air intake valve 61, and the rear end of air intake valve 61 is connected to ultra-fine filter screen 62 by gas piping, surpass The rear end of fie screen 62 is connected to gas pre-mixed four-way valve 63 by gas piping, meanwhile, ozone generator 64 and nitrogen storage tank 65 Gas pre-mixed four-way valve 63 is connected to by gas piping respectively, the gas pre-mixed port of export of four-way valve 63 is connected to mixed by gas piping Gas tip 66 is closed, the top of mixed gas shower nozzle 66 is provided with 1 set of metal tungsten wire circle 67, and metal tungsten wire circle 67 is by outside device 1 voltage-stabilized power supply 68 in portion is powered, and drain tap 69 is provided with the top of device；Petrochemical industry waste gas containing benzene homologues passes through The air intake valve 61 of tungsten wire circle surface active-bottom of ozone Oxidation Treatment device 6 enters inside processing unit, by ultra-fine filter screen After 62 fine filtering thoroughly removes granule foreign, into gas pre-mixed four-way valve 63, meanwhile, generated by ozone generator 64 Ozone gas and the nitrogen supplied by nitrogen storage tank 65 also enter gas pre-mixed four-way valve 63, pending waste gas, ozone and nitrogen Gas is in gas pre-mixed four-way valve 63 according to the volume ratio being previously set（Waste gas, O3、N2Ratio be respectively 28.7%, 31.1% and 40.2%）It is sufficiently mixed, the gas after being well mixed uniformly is sprayed to metal tungsten wire circle by mixed gas shower nozzle 66 At 67, metal tungsten wire circle 67 enters the red-hot state that is powered under the power supply of voltage-stabilized power supply 68, and now, the ozone in mixed gas exists The surface of metal tungsten wire circle 67 discharges rapidly activation oxygen atom, and is locally producing a kind of Strong oxdiative environment, when containing in waste gas When the benzene homologues molecule of conjugation C-C keys is under such a Strong oxdiative environment, its conjugation C-C key can be activated oxygen atom and beat Broken, benzene homologues molecule is finally oxidized and is decomposed into H2O and CO2Deng inorganic molecule, so as to reach the mesh of benzene homologues in removing exhaust gas , the waste gas after purified treatment is discharged by the drain tap 69 at the top of device, and enters next treatment process.Wherein, by It is combustible in benzene homologues, and ozone can form combustion adjuvant after oxygen atom is discharged --- oxygen, there is generation after the two mixing The danger of blast, therefore nitrogen is mixed into as shielding gas into waste gas in advance, explosion-proof can be played；Wherein, tungsten wire circle table The working pressure range of face activation-ozone Oxidation Treatment device 6 is 0.055 ~ 0.75MPa, and operating temperature range is 250 ~ 700 DEG C, dischargeable capacity 230m3；Wherein, tungsten wire circle surface active-ozone Oxidation Treatment device 6, its metal tungsten wire circle 67 are working When surface temperature be about 2600 DEG C, operating voltage 380V, its W content be more than 99.95%；Wherein, tungsten wire circle surface active- Ozone Oxidation Treatment device 6, its gas pre-mixed four-way valve 63 enter one using three and go out structure, and maximum pressure-bearing is 1.05MPa, work temperature It is 105 ~ 850 DEG C to spend scope.
Waste gas after being handled by this method, the removal efficiency of its benzene homologues is up to 99.6%.

Claims (1)

  1. A kind of 1. processing method for removing benzene homologues in petrochemical industry waste gas, it is characterised in that the petrochemical industry containing benzene homologues Waste gas enters residual-heat exchanger by gas piping, the waste gas of overheat is cooled and stably by heat exchange action herein, And obtained after-heat is available for utilizing, the outlet of residual-heat exchanger connects gas superheat protection device by gas piping, The outlet of gas superheat protection device connects thermal type gas quality flow meter by gas piping, and exhaust gas flow, flow velocity etc. are believed Breath carries out real-time monitoring record, and the outlet of thermal type gas quality flow meter connects mixed gas flow by gas piping and adjusted Valve, the method by importing air adjust the actual concentrations of benzene homologues in waste gas, and accurate dilution cooling is carried out to waste gas, mix The outlet for closing gas flow regulating valve connects fiber bag precipitator by gas piping, and the particle contamination in waste gas is removed at this Thing, the outlet of fiber bag precipitator connect tungsten wire circle surface active-ozone Oxidation Treatment device by gas piping, contain benzene series The petrochemical industry waste gas of thing enters processing unit by the air intake valve of tungsten wire circle surface active-ozone Oxidation Treatment bottom of device Inside, after the fine filtering of ultra-fine filter screen thoroughly removes granule foreign, sent out into gas pre-mixed four-way valve, while by ozone The ozone gas of raw device generation and the nitrogen supplied by nitrogen storage tank also enter gas pre-mixed four-way valve, pending waste gas, smelly Oxygen and nitrogen are sufficiently mixed in gas pre-mixed four-way valve according to the volume ratio being previously set, and the gas after being well mixed leads to Mixing gas tip is crossed uniformly at injection to metal tungsten wire circle, it is red-hot that metal tungsten wire circle enters energization under the power supply of voltage-stabilized power supply State, now the ozone in mixed gas discharges rapidly activation oxygen atom in tungsten coil surface, and is locally producing one Kind Strong oxdiative environment, when the benzene homologues molecule containing conjugation C-C keys in waste gas is under such a Strong oxdiative environment, it is common Yoke C-C keys can be activated oxygen atom and break, and benzene homologues molecule is finally oxidized and is decomposed into H2O and CO2Deng inorganic molecule, so as to reach To the purpose for removing benzene homologues in removing exhaust gas, the waste gas of the benzene homologues gone after purified treatment in removing exhaust gas is by the row at the top of device Air valve is discharged, and connects gas fume washing purifying column by gas piping, waste gas after processing is further washed at this Purification and cooling, the outlet of gas fume washing purifying column connect air-introduced machine by gas piping, and the outlet of air-introduced machine passes through flue Road connects atmospheric environment；The gas pre-mixed four-way valve of tungsten wire circle surface active-ozone Oxidation Treatment device enters one using three and goes out knot Structure, maximum pressure-bearing are 1.05MPa, and operating temperature range is 105 ~ 850 DEG C, tungsten wire circle surface active-ozone Oxidation Treatment device Working pressure range be about 0.055 ~ 0.75MPa, operating temperature range is about 250 ~ 700 DEG C, dischargeable capacity 230m3, tungsten The surface temperature of the metal tungsten wire circle of coil surface activation-ozone Oxidation Treatment device at work is about 2600 DEG C, work electricity Press and be more than 99.95% for 380V, its W content.
CN201710929271.9A 2016-07-15 2016-07-15 Treatment method for removing benzene series in petrochemical industrial waste gas Active CN107511042B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710929271.9A CN107511042B (en) 2016-07-15 2016-07-15 Treatment method for removing benzene series in petrochemical industrial waste gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710929271.9A CN107511042B (en) 2016-07-15 2016-07-15 Treatment method for removing benzene series in petrochemical industrial waste gas
CN201610555323.6A CN105944494B (en) 2016-07-15 2016-07-15 A kind of processing method for removing benzene homologues in petrochemical industry waste gas

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201610555323.6A Division CN105944494B (en) 2016-07-15 2016-07-15 A kind of processing method for removing benzene homologues in petrochemical industry waste gas

Publications (2)

Publication Number Publication Date
CN107511042A true CN107511042A (en) 2017-12-26
CN107511042B CN107511042B (en) 2020-06-16

Family

ID=56900784

Family Applications (5)

Application Number Title Priority Date Filing Date
CN201610555323.6A Active CN105944494B (en) 2016-07-15 2016-07-15 A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN201710929271.9A Active CN107511042B (en) 2016-07-15 2016-07-15 Treatment method for removing benzene series in petrochemical industrial waste gas
CN201710929654.6A Active CN107441906B (en) 2016-07-15 2016-07-15 Treatment method for removing benzene series in petrochemical industrial waste gas
CN201710929272.3A Active CN107486003B (en) 2016-07-15 2016-07-15 A kind of processing method removing benzene homologues in petrochemical industry exhaust gas
CN201710930114.XA Expired - Fee Related CN107441912B (en) 2016-07-15 2016-07-15 A kind of processing method for removing benzene homologues in petrochemical industry exhaust gas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610555323.6A Active CN105944494B (en) 2016-07-15 2016-07-15 A kind of processing method for removing benzene homologues in petrochemical industry waste gas

Family Applications After (3)

Application Number Title Priority Date Filing Date
CN201710929654.6A Active CN107441906B (en) 2016-07-15 2016-07-15 Treatment method for removing benzene series in petrochemical industrial waste gas
CN201710929272.3A Active CN107486003B (en) 2016-07-15 2016-07-15 A kind of processing method removing benzene homologues in petrochemical industry exhaust gas
CN201710930114.XA Expired - Fee Related CN107441912B (en) 2016-07-15 2016-07-15 A kind of processing method for removing benzene homologues in petrochemical industry exhaust gas

Country Status (1)

Country Link
CN (5) CN105944494B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107441906A (en) * 2016-07-15 2017-12-08 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN108211739A (en) * 2018-02-08 2018-06-29 杭州富阳锦丰纸业有限公司 A kind of processing system for removing amino benzenes compounds in organic chemical industry's exhaust gas

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106629068A (en) * 2016-11-21 2017-05-10 中国核电工程有限公司 Aerosol distribution device
CN110465156B (en) * 2018-05-09 2023-02-21 伊利诺斯工具制品有限公司 Waste gas filtering device for reflow oven

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000288346A (en) * 1999-04-12 2000-10-17 Art Ceramic Kk Method for removing harmful substance from combustion gas and apparatus therefor
US20070116616A1 (en) * 2005-11-18 2007-05-24 General Electric Company Method and system for removing mercury from combustion gas
CN102350204A (en) * 2011-10-17 2012-02-15 沈阳环境科学研究院 Modular absorbing and purifying device for volatile organic waste gases
CN103316573A (en) * 2013-07-16 2013-09-25 国家海洋局天津海水淡化与综合利用研究所 Resource reclamation type membrane flue gas desulphurization and denitration device and its technology
CN203663675U (en) * 2013-12-19 2014-06-25 菏泽瑞圣化工科技有限公司 Multifunctional phenol waste gas purification device
CN105396443A (en) * 2015-11-05 2016-03-16 张文国 Industrial refuse cracking incineration tail gas deacidifying treatment system
CN105521695A (en) * 2016-01-11 2016-04-27 张文国 Industrial waste cracking incineration exhaust gas denitration system
CN107441906A (en) * 2016-07-15 2017-12-08 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1204547A (en) * 1997-07-07 1999-01-13 肖茂茹 Carbonized polymer screen dust remover
WO2000074822A1 (en) * 1999-06-07 2000-12-14 Nkk Corporation Method and apparatus for decomposing halogenated hydrocarbon gas
WO2006027659A1 (en) * 2004-09-07 2006-03-16 Ecoenergy Abiotecnologie S.A.S. Di Di Giovanni Sabrina E C.-Tecnologie Abiotiche Per L'ambiente El'energia Process for purifying humid wastes through their treatment with superoxydizing agents in the presence of catalysts and purification plant thereof
US20070107595A1 (en) * 2005-11-14 2007-05-17 Myung-Soo Na Method and apparatus for collecting chemical compounds from semiconductor processing
JP5696348B2 (en) * 2008-08-09 2015-04-08 東京エレクトロン株式会社 Metal recovery method, metal recovery apparatus, exhaust system, and film forming apparatus using the same
US9539543B2 (en) * 2009-01-29 2017-01-10 Basf Corporation Mechanically fused materials for pollution abatement in mobile and stationary sources
CN202387362U (en) * 2011-08-24 2012-08-22 福建新大陆环保科技有限公司 Semi-dry low temperature flue gas denitrification system
US9987621B2 (en) * 2012-01-12 2018-06-05 Nitto Denko Corporation Transparent photocatalyst coating
CN203355584U (en) * 2013-06-07 2013-12-25 深圳市科德环保科技有限公司 Treatment equipment for volatile organic pollutant waste gas
CN203899429U (en) * 2014-05-12 2014-10-29 江苏省环境科学研究院 Catalytic low-temperature plasma device for processing malodorous gas
CN204865493U (en) * 2015-06-10 2015-12-16 深圳维拓环境科技股份有限公司 A clean system for stench waste gas

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000288346A (en) * 1999-04-12 2000-10-17 Art Ceramic Kk Method for removing harmful substance from combustion gas and apparatus therefor
US20070116616A1 (en) * 2005-11-18 2007-05-24 General Electric Company Method and system for removing mercury from combustion gas
CN102350204A (en) * 2011-10-17 2012-02-15 沈阳环境科学研究院 Modular absorbing and purifying device for volatile organic waste gases
CN103316573A (en) * 2013-07-16 2013-09-25 国家海洋局天津海水淡化与综合利用研究所 Resource reclamation type membrane flue gas desulphurization and denitration device and its technology
CN203663675U (en) * 2013-12-19 2014-06-25 菏泽瑞圣化工科技有限公司 Multifunctional phenol waste gas purification device
CN105396443A (en) * 2015-11-05 2016-03-16 张文国 Industrial refuse cracking incineration tail gas deacidifying treatment system
CN105521695A (en) * 2016-01-11 2016-04-27 张文国 Industrial waste cracking incineration exhaust gas denitration system
CN107441906A (en) * 2016-07-15 2017-12-08 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN107441912A (en) * 2016-07-15 2017-12-08 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN107486003A (en) * 2016-07-15 2017-12-19 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107441906A (en) * 2016-07-15 2017-12-08 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN107486003A (en) * 2016-07-15 2017-12-19 缪琼华 A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN107441906B (en) * 2016-07-15 2020-06-12 杭州富阳何氏化纤助剂有限公司 Treatment method for removing benzene series in petrochemical industrial waste gas
CN108211739A (en) * 2018-02-08 2018-06-29 杭州富阳锦丰纸业有限公司 A kind of processing system for removing amino benzenes compounds in organic chemical industry's exhaust gas

Also Published As

Publication number Publication date
CN107511042B (en) 2020-06-16
CN107486003A (en) 2017-12-19
CN107441906B (en) 2020-06-12
CN105944494A (en) 2016-09-21
CN107441912B (en) 2018-05-22
CN107486003B (en) 2018-07-20
CN107441906A (en) 2017-12-08
CN105944494B (en) 2017-12-05
CN107441912A (en) 2017-12-08

Similar Documents

Publication Publication Date Title
CN106110809B (en) A kind of processing system for removing benzene homologues in petrochemical industry waste gas
CN105944494B (en) A kind of processing method for removing benzene homologues in petrochemical industry waste gas
CN208824192U (en) A kind of VOCs exhaust-gas efficient adsorption/desorption catalyzing burning processing system
CN106563346A (en) Reaction type VOCs absorbent
CN208302463U (en) A kind of VOCs exhaust gas advanced purification system
CN107715691A (en) A kind of photocatalysis aqueous vapor treating column
CN105833674A (en) Device and method for treating spraying waste gas jointly through hot corona discharge and high-temperature pyrolysis
CN207025024U (en) Purifier
CN105498495A (en) Device for treating waste gas by Fenton oxidation
KR100736248B1 (en) Apparatus for controlling odor and hydrocarbons in exhaust air stream in tire manufacturing plant
CN105879659A (en) VOCs (volatile organic compounds) purification method for waste gas of petrochemical industry
CN106178879B (en) A kind of tungsten wire circle surface active-ozone Oxidation Treatment device removing benzene homologues in removing exhaust gas
CN105879660B (en) A kind of VOCs cleaning systems of petrochemical industry waste gas
CN216418906U (en) Organic microelement feed additive's flavor system that removes
CN214914741U (en) VOCs exhaust-gas treatment system
CN217367865U (en) VOCs processing apparatus of minimum emission
CN107854959A (en) Mixed type complex working condition VOCs purifies technique and device
CN107362681A (en) The efficient catalytic handling process of waste gas and waste liquid in a kind of synthetic leather technique
CN206676183U (en) A kind of activated carbon emission-control equipment
CN206853426U (en) A kind of buffer-type low temperature plasma organic waste gases purifying device
CN205019913U (en) Contain benzene class waste gas treatment system
CN105107341A (en) Benzene-containing waste gas processing method and processing system thereof
CN110841431A (en) VOCs waste gas treatment system and treatment method

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20200509

Address after: 311423 Yongchang village, Yongchang Town, Fuyang District, Zhejiang, Hangzhou

Applicant after: Hangzhou Fuyang he chemical fiber auxiliary Co., Ltd

Address before: 312000 Zhejiang province Shaoxing City West Ham Huan River 34 room 304

Applicant before: Miao Qionghua

GR01 Patent grant
GR01 Patent grant