CN105771574A - Process for purifying nitrogen-containing organic waste gas by adopting photon-generated ozone catalytic oxidation coupled biological method - Google Patents

Process for purifying nitrogen-containing organic waste gas by adopting photon-generated ozone catalytic oxidation coupled biological method Download PDF

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Publication number
CN105771574A
CN105771574A CN201610127498.7A CN201610127498A CN105771574A CN 105771574 A CN105771574 A CN 105771574A CN 201610127498 A CN201610127498 A CN 201610127498A CN 105771574 A CN105771574 A CN 105771574A
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China
Prior art keywords
uviol lamp
catalytic oxidation
waste gas
catalyst
ozone catalytic
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CN201610127498.7A
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徐仲均
崔利波
李静
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Beijing University of Chemical Technology
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Beijing University of Chemical Technology
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Priority to CN201610127498.7A priority Critical patent/CN105771574A/en
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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
    • B01D53/74—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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • B01D53/007—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 irradiation
    • 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
    • B01D53/84—Biological processes
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • 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
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/2073—Manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2094—Tin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2098—Antimony
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention relates to a process for purifying nitrogen-containing organic waste gas by adopting a photon-generated ozone catalytic oxidation coupled biological method.The process adopts a photon-generated ozone catalytic oxidation unit and a biological treatment unit which are connected in series, wherein the photon-generated ozone catalytic oxidation unit is composed of a fan, a housing, a filter layer, ultraviolet lamps and a catalyst.The serially connected biological treatment unit is composed of packed towers, a packing and spraying heads.The process utilizes the front-arranged photon-generated ozone catalytic oxidation unit to make oxygen produce free radicals having strong oxidizing properties and ozone in the waste gas under the high-energy ultraviolet light effect and produce free radicals having strong oxidizing properties under the effect of the catalyst and convert pollutants into carbon dioxide, water and intermediate products under the effects of an interaction mechanism of light oxidation, free radical oxidation, ozone oxidation and ozone catalytic oxidation, then makes products enter the serially connected biological treatment unit for subsequent degradation and finally makes the products become non-toxic harmless substances.

Description

The technique that a kind of photoproduction catalytic ozonation coupled biological method purifies nitrogenous organic exhaust gas
Technical field
The present invention relates to field of environmental technology, be applied to the purified treatment of nitrogenous volatile organic waste gas particularly to the technique of a kind of photoproduction catalytic ozonation coupled biological method cleaning organic waste gas, can be used for industrial waste gas purifying.
Background technology
Volatile organic matter (VOCs) is as component relatively active in air, and it is not only directly detrimental to health, and also can form the secondary pollution such as photochemical fog and Organic aerosol in an atmosphere, become PM2.5Important as precursors thing.Along with the development of industry, environmental pollution is on the rise, and industrial waste gas is administered extremely urgent.Therefore, the purification techniques of research and development VOCs, the discharge reducing VOCs contributes to improving ambient air quality and ensureing health, is also Sustainable Socioeconomic Development, walks the urgent needs of environmentally friendly road for development.
At present, the waste gas processing method of existing vacuum-ultraviolet light catalyzing cooperation catalytic ozonation and device patent (CN201510279052.1), the disclosure patent solves tradition light degradation and photocatalysis improvement waste gas efficiency is low, but is easily generated secondary pollution and residual ozone potential risk problem.Biochemical method waste gas has the biological purifying method patent (CN200410079571.5) of a kind of reclaimed rubber desulfurizing industrial waste gas, but the disclosure patent still cannot break away from the single bioanalysis inefficient difficult problem of contaminant degradation to bio-refractory.So far but without the patent of a kind of photoproduction catalytic ozonation coupled biological method cleaning organic waste gas technique, patent of the present invention can realize above cannot realizing, and effectively expands the kind of VOCs exhaust-gas treatment, concentration and scope.
Summary of the invention
The invention provides a kind of photoproduction catalytic ozonation coupled biological method and purify the technique of nitrogenous organic exhaust gas, the present invention is implemented by following technical scheme:
The technique that described a kind of photoproduction catalytic ozonation coupled biological method purifies nitrogenous organic exhaust gas, the biological processing unit connected by preposition photoproduction ozone catalytic oxidation unit and rear end forms, and its core component of photoproduction ozone catalytic oxidation unit of front end is uviol lamp, catalyst.Described housing is made up of the aluminium-plastic panel of rustless steel or paper tinsel of aluminizing.Described uviol lamp includes one or more uviol lamp, uviol lamp wavelength≤254nm, it is preferable that uviol lamp wavelength≤185nm, and uviol lamp arrangement mode is vertical with airflow direction, and uviol lamp end adopts encapsulant to seal.Described catalyst is made up of carrier supported metal oxide, wherein, described carrier includes but are not limited to the foam metals such as nickel foam, foam copper, foamed aluminium, and the porous material such as ceramic honey comb, activated carbon, molecular sieve, described catalyst includes but are not limited to one or more in copper oxide, cerium oxide, manganese oxide, ferrum oxide, stannum oxide, stibium oxide and other transition metal oxides, it is preferred to MnOx-SnOx-CeOx-SbOx composite oxides.Its core component of biological unit of rear end series connection is filler, and described filler can be selected for the porous materials such as activated carbon, ceramic honey comb, molecular sieve and mixed with plant, agricultural crop straw etc. by above-mentioned material.
The purification process of whole technique is for utilizing preposition photoproduction ozone catalytic oxidation unit pollutant By Direct Pyrolysis under high energy ultraviolet light action, and the strong oxidizing property free radical that the oxygen in waste gas produces under high energy ultraviolet light action, strong oxidative free radical and ozone that ozone produces under the effect of catalyst continue degraded, oxidation stain thing, make pollutant in photooxidation, free-radical oxidation, ozone oxidation, it is converted into carbon dioxide under the effect of catalytic ozonation common mechanisms, water and intermediate product, the biological unit entering back into rear end series connection continues degraded, eventually become nontoxic material, avoid the generation of secondary pollution, effectively control the generation of harmful side product, this difficult problem of pollutant of single creature method difficult for biological degradation can be solved simultaneously.
Compared with prior art, advantages of the present invention and having the beneficial effect that utilizes photoproduction catalytic ozonation coupled biological method to purify nitrogenous organic exhaust gas technique, has effectively expanded the kind of VOCs exhaust-gas treatment, concentration and scope.By front end, pollutant being carried out pretreatment, the simple compounds of generation enters back into follow-up biological treatment device and continues degraded, generates nontoxic material.So it is possible not only to improve degradation efficiency, but also can effectively control the formation of harmful side product, improve cost performance.
Accompanying drawing explanation
Fig. 1 is process example 1 structural representation that the present invention a kind of photoproduction catalytic ozonation coupled biological method purifies nitrogenous organic exhaust gas.
In figure: 1. housing；2. waste gas；3. blower fan；4. filter course；5. uviol lamp；6. catalyst；7. packed tower；8. filler；9. spray head；10. purge gas.
Detailed description of the invention
Embodiment 1: purify containing acrylonitrile waste gas.
A kind of photoproduction catalytic ozonation coupled biological method purifies the technique of nitrogenous organic exhaust gas as it is shown in figure 1, include housing 1, waste gas 2, blower fan 3, filter course 4, uviol lamp 5, catalyst 6, packed tower 7, filler 8, spray head 9, purge gas 10.Nitrogenous volatile organic waste gas 2 is under the power of blower fan 3 is carried, after the udst separation of filter course 4, enter in the photoproduction catalytic ozonation response system being made up of uviol lamp 5 and catalyst 6, nitrogenous volatile organic matter in waste gas is oxidized to harmless carbon dioxide and water, and intermediate product, the nitrogenous volatile organic waste gas of non-permineralization and the intermediate product of generation enter packed tower 7, filler 8 continues under the effect of microorganism degraded, ultimately producing nontoxic material, purge gas 10 is discharged through exhaust outlet.When being 300mg/cm containing acrylonitrile waste gas inlet concentration3, when the time of staying is 23s, clearance reaches 98%；When being 570mg/cm containing acrylonitrile waste gas inlet concentration3, when the time of staying is 46s, clearance reaches 97%.

Claims (6)

1. the technique that a photoproduction catalytic ozonation coupled biological method purifies nitrogenous organic exhaust gas, it is characterized in that, the waste gas of itrogenous organic substance is sent in the response system being made up of uviol lamp and catalyst by blower fan, the oxidative free radical that itrogenous organic substance in waste gas is produced by ozone and catalysis ozone resolves into carbon dioxide, water, nitrogen and not degradable intermediate product, then not degradable intermediate product enters biofiltration device, and be degraded carbon dioxide, water, nitrogen further.
2. the technique that a kind of photoproduction catalytic ozonation coupled biological method according to claim 1 purifies nitrogenous organic exhaust gas, it is characterized in that, technique is made up of photoproduction ozone catalytic oxidation unit and biological processing unit, and wherein photoproduction ozone catalytic oxidation unit is preposition, rear end series connection biological processing unit.Equipment is made up of blower fan, housing, filter course, uviol lamp, catalyst, packed tower, filler, spray head.
3. photoproduction ozone catalytic oxidation unit according to claim 2, it is characterized in that, process equipment housing is made up of the aluminium-plastic panel of rustless steel or paper tinsel of aluminizing, it it is filter course between case entrances and uviol lamp, remove the particulate matter in waste gas, described uviol lamp, the core component of catalyst constituent apparatus, the nitrogenous volatile organic compounds in oxidation and catalyzing oxidizing degrading air-flow, described housing outlets connects with the air inlet of packed tower.
4. uviol lamp according to claim 3, it is characterised in that described uviol lamp includes one or more uviol lamp, uviol lamp wavelength≤254nm, preferred uviol lamp wavelength≤185nm, uviol lamp arrangement mode is vertical with airflow direction, and uviol lamp end adopts encapsulant to seal.
5. catalyst according to claim 3, it is characterised in that described catalyst is made up of carrier supported metal oxide, can produce oxidative free radical by catalysis ozone.Described carrier includes but are not limited to the porous materials such as the foam metals such as nickel foam, foam copper, foamed aluminium, and ceramic honey comb, activated carbon, molecular sieve.Described catalyst includes but are not limited to one or more in copper oxide, cerium oxide, manganese oxide, ferrum oxide, stannum oxide, stibium oxide and other transition metal oxides, it is preferred to MnOx-SnOx-CeOx-SbOx composite oxides.
6. biological processing unit according to claim 2, it is characterised in that described biological processing unit can be one or more during zinc cation, bio-trickling, biofiltration and plant-microorganism filter, wherein preferably biofiltration.
CN201610127498.7A 2016-03-07 2016-03-07 Process for purifying nitrogen-containing organic waste gas by adopting photon-generated ozone catalytic oxidation coupled biological method Pending CN105771574A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106178875A (en) * 2016-08-16 2016-12-07 南京格洛特环境工程股份有限公司 A kind of technique of uviol lamp intensive treatment volatile organic waste gas
CN106731778A (en) * 2017-02-17 2017-05-31 盐城工学院 A kind of bio-trickling device and exhaust treatment system
CN106731779A (en) * 2017-02-17 2017-05-31 盐城工学院 Bio-trickling filter experimental system and exhaust-gas treatment experimental system
CN107349767A (en) * 2017-08-11 2017-11-17 深圳职业技术学院 Organic waste gas treatment device
CN107774052A (en) * 2017-11-22 2018-03-09 郑州源冉生物技术有限公司 Industrial waste gas high-efficiency purification treatment equipment
CN108187466A (en) * 2017-12-31 2018-06-22 浙江工业大学 A kind of advanced oxidation coupled biological cleaning system and its application based on ozone regulation and control
CN108499356A (en) * 2018-06-14 2018-09-07 苏州紫微星环保科技有限公司 The micro- resonance of light and biological fluids spray organic waste gas treatment system and method
CN109045960A (en) * 2018-07-31 2018-12-21 上海第二工业大学 A kind of system and method for downflow type vacuum ultraviolet degradation organic waste gas
CN109364748A (en) * 2018-12-03 2019-02-22 广州尚洁环保科技有限公司 Based on emulsion foaming sponge production line exhaust treatment system and waste gas processing method
CN109985519A (en) * 2019-04-01 2019-07-09 广州尚洁环保科技有限公司 Organic waste gas system and waste gas processing method are printed based on oxidative free radical processing
CN110615574A (en) * 2019-08-29 2019-12-27 博天环境集团股份有限公司 Ozone catalytic oxidation coupling microalgae method wastewater treatment system and process
CN111318161A (en) * 2018-12-13 2020-06-23 中国石油化工股份有限公司 Treatment method for waste gas generated by sewage secondary biochemical treatment device
CN113731168A (en) * 2021-09-16 2021-12-03 中南大学 Volatile organic waste gas purification system and method thereof
CN114682086A (en) * 2020-12-31 2022-07-01 中国石油化工股份有限公司 Method and device for treating nitrogen-containing organic waste gas

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CN202778234U (en) * 2012-08-28 2013-03-13 佛山市新泰隆环保设备制造有限公司 Combined-type organic waste gas treatment device
CN104056543A (en) * 2013-03-22 2014-09-24 北京化工大学 Reinforced biological filtration/purification device for organic exhaust gas
CN104906951A (en) * 2015-06-30 2015-09-16 北京化工大学 Method and device for removing volatile organic compounds by photo-production ozone catalytic oxidation

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WO2004112958A1 (en) * 2003-06-19 2004-12-29 Carrier Corporation Air purification system comprising gold/titanium dioxide photocatalyst
CN202778234U (en) * 2012-08-28 2013-03-13 佛山市新泰隆环保设备制造有限公司 Combined-type organic waste gas treatment device
CN104056543A (en) * 2013-03-22 2014-09-24 北京化工大学 Reinforced biological filtration/purification device for organic exhaust gas
CN104906951A (en) * 2015-06-30 2015-09-16 北京化工大学 Method and device for removing volatile organic compounds by photo-production ozone catalytic oxidation

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106178875A (en) * 2016-08-16 2016-12-07 南京格洛特环境工程股份有限公司 A kind of technique of uviol lamp intensive treatment volatile organic waste gas
CN106731778A (en) * 2017-02-17 2017-05-31 盐城工学院 A kind of bio-trickling device and exhaust treatment system
CN106731779A (en) * 2017-02-17 2017-05-31 盐城工学院 Bio-trickling filter experimental system and exhaust-gas treatment experimental system
CN107349767A (en) * 2017-08-11 2017-11-17 深圳职业技术学院 Organic waste gas treatment device
CN107774052A (en) * 2017-11-22 2018-03-09 郑州源冉生物技术有限公司 Industrial waste gas high-efficiency purification treatment equipment
CN108187466B (en) * 2017-12-31 2020-04-24 浙江工业大学 Advanced oxidation coupling biological purification system based on ozone regulation and control and application thereof
CN108187466A (en) * 2017-12-31 2018-06-22 浙江工业大学 A kind of advanced oxidation coupled biological cleaning system and its application based on ozone regulation and control
CN108499356A (en) * 2018-06-14 2018-09-07 苏州紫微星环保科技有限公司 The micro- resonance of light and biological fluids spray organic waste gas treatment system and method
CN109045960A (en) * 2018-07-31 2018-12-21 上海第二工业大学 A kind of system and method for downflow type vacuum ultraviolet degradation organic waste gas
CN109045960B (en) * 2018-07-31 2021-06-22 上海第二工业大学 System and method for downstream vacuum ultraviolet degradation of organic waste gas
CN109364748A (en) * 2018-12-03 2019-02-22 广州尚洁环保科技有限公司 Based on emulsion foaming sponge production line exhaust treatment system and waste gas processing method
CN111318161A (en) * 2018-12-13 2020-06-23 中国石油化工股份有限公司 Treatment method for waste gas generated by sewage secondary biochemical treatment device
CN109985519A (en) * 2019-04-01 2019-07-09 广州尚洁环保科技有限公司 Organic waste gas system and waste gas processing method are printed based on oxidative free radical processing
CN110615574A (en) * 2019-08-29 2019-12-27 博天环境集团股份有限公司 Ozone catalytic oxidation coupling microalgae method wastewater treatment system and process
CN114682086A (en) * 2020-12-31 2022-07-01 中国石油化工股份有限公司 Method and device for treating nitrogen-containing organic waste gas
CN113731168A (en) * 2021-09-16 2021-12-03 中南大学 Volatile organic waste gas purification system and method thereof

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