CN107694330A - A kind of VOC degradation treatments system - Google Patents

A kind of VOC degradation treatments system Download PDF

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Publication number
CN107694330A
CN107694330A CN201710946311.0A CN201710946311A CN107694330A CN 107694330 A CN107694330 A CN 107694330A CN 201710946311 A CN201710946311 A CN 201710946311A CN 107694330 A CN107694330 A CN 107694330A
Authority
CN
China
Prior art keywords
voc
degradation treatments
treatments system
degraded
filtering layers
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.)
Pending
Application number
CN201710946311.0A
Other languages
Chinese (zh)
Inventor
德·埃德温·大伟
陈帆
陈一帆
何伟才
李金畅
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.)
Edwin David Day
Tang Gim Lee
Yi Fan Chen
Original Assignee
Edwin David Day
Tang Gim Lee
Yi Fan Chen
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 Edwin David Day, Tang Gim Lee, Yi Fan Chen filed Critical Edwin David Day
Priority to CN201710946311.0A priority Critical patent/CN107694330A/en
Publication of CN107694330A publication Critical patent/CN107694330A/en
Pending legal-status Critical Current

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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
    • B01D53/86—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
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/70—Non-metallic catalysts, additives or dopants
    • B01D2255/707—Additives or dopants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • 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
    • B01D2257/00—Components to be removed
    • B01D2257/91—Bacteria; Microorganisms
    • 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

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The invention discloses a kind of VOC degradation treatments system, it is characterised in that：The system includes pretreatment unit, VOC degradation treatments device and the air exhauster being sequentially communicated；Described VOC decomposition apparatus includes VOC degraded filtering layers and uviol lamp, and VOC degraded filtering layers are made up of the quartz fibre covered with titanium dioxide.Present system is simple, consumption is low, and VOC makes organic exhaust gas convert innocuous gas, do not produce secondary pollution at normal temperatures by the effect of catalyst and ultraviolet light.

Description

A kind of VOC degradation treatments system
Technical field
The present invention relates to environmental technology field, more particularly to a kind of VOC degradation treatments system.
Background technology
VOC is the abbreviation of volatile harmful substance, and VOC is that a kind of have excitant, teratogenesis, carcinogenic, mutagenesis, inflammable Explosive organic matter, there is very big harm to human body and ecosystem health.When the VOC content in room reaches finite concentration, People can feel the symptom such as headache, Nausea and vomiting, weak, and serious there is also stupor, and can injure the liver of people, kidney and Nervous system.It common are benzene, toluene, ethylbenzene, dimethylbenzene, alcohol, ethanol, isopropanol, acetone, chloroform, glycol ether etc..
In October, 2012, Environmental Protection Department was promulgated《Key area prevention and control of air pollution " 12 " is planned》, issue first China include regional 19 provinces in Jing-jin-ji region, the Yangtze River Delta and Pearl River Delta, municipality directly under the Central Government, autonomous region 13 key areas VOC numbers According to.Pointed out in planning, petrochemical industry, organic chemical industry, synthetic material, the manufacture of chemicals active compound, plastic product manufacture, equipment manufacturing apply The key industry such as dress, communications device computer and other electronic equipment manufacturings, packages printing is VOCS discharges in key industry. China's VOC emission amount increases year by year, is the weight for causing the compound atmosphere polluting problem getting worse such as photochemical fog, city haze Want reason.Because China focuses on waste gas pollution control and treatment in dedusting, desulfurization and denitration work for a long time, VOC controls enter Postpone slow.
One of guide's factor as PM2.5, VOC (volatile organic matter) gradually draw attention, turn into air and control The important content of reason.
The Traditional control technology of VOC exhaust-gas treatments includes combustion method, active carbon adsorption, absorption process, biological treatment etc., The shortcomings that these systems are responsible for there is system in various degree, investment is big, operating cost is high, secondary pollution.In the market There is photocatalytic method processing VOC, simple system operating cost is low, but less efficient.
Seek the developing direction that simple system, operating cost are low, efficiency high is VOC degradation techniques.
The content of the invention
In view of the above problems, the present invention provides a kind of VOC degradation treatments system, and its treatment effeciency is high, and energy consumption is low, without secondary Pollution.
In order to solve the above problems, the invention provides a kind of VOC degradation treatments system, it is characterised in that：The system Including the pretreatment unit, VOC degradation treatments device and air exhauster being sequentially communicated；Described VOC decomposition apparatus includes VOC drops Filtering layer and uviol lamp are solved, VOC degraded filtering layers are made up of the quartz fibre covered with titanium dioxide.
Described VOC decomposition apparatus includes the cavity volume of supplied gas flowing, and cavity volume is built-in with one or more groups of VOC degradeds filters Layer and uviol lamp.
Described multigroup VOC degradeds filtering layer is connected interval setting with uviol lamp.
The one or both sides of each described VOC degraded filtering layers are provided with uviol lamp.
The size of the VOC degradeds filtering layer is the radial dimension for the gas flow paths being completely covered in cavity volume.
The fibre diameter of described quartz fibre is below 15um.
Described VOC degraded filtering layer structure types made of quartz fibre are silica wool, quartzy thin slice, quartz fabric or stone English fibrofelt.
Described titanium dioxide is attached on quartz fibre.
Described pretreatment unit includes dedusting mechanism and demisting oil removing mechanism, and dedusting mechanism is point with demisting oil removing mechanism Two equipment of body or the equipment of integration；Or pretreatment unit is one while has dedusting, a demisting deoiling function Equipment.
Described pretreatment unit, VOC degradation treatments device and air exhauster is assembled integrally.
The present invention by made of the quartz fibre covered with titanium dioxide VOC degrade filtering layer to VOC waste gas carry out light Catalytic reaction, oxidability extremely strong free hydroxy and active oxygen are produced, there is very strong photoredox function, can oxygen Change and decompose various organic compounds and part inorganic matter, the cell membrane of bacterium and the protein of solidification virus can be destroyed, can be killed Bacterium and decomposing organic pollutant, organic pollution is resolved into free of contamination water (H2O) and carbon dioxide (CO2), thus had There are extremely strong sterilization, deodorization, mould proof, anti-fouling and self-cleaning, purification gas function, maintenance cost is low and does not produce secondary pollution, and adopts Make that base material translucency is good, surface area is big of quartz fibre, catalytic efficiency increases substantially.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
As shown in figure 1, the present invention is a kind of VOC degradation treatments system, including pass sequentially through the pretreatment dress of pipeline connection Put 1, VOC degradation treatments device 2 and air exhauster 3；Described VOC decomposition apparatus 2 includes VOC degraded filtering layers 21 and uviol lamp 22, the VOC degraded filtering layer 21 be made up of the quartz fibre covered with titanium dioxide, can using structure type as silica wool, quartz Thin slice, quartz fabric or quartz fiber felt etc..
VOC decomposition apparatus 2 includes the cavity volume 23 of supplied gas flowing, and cavity volume 23 is built-in with one or more groups of VOC degradeds filters Layer 21 and uviol lamp 22.In the present embodiment, cavity volume 23 is built-in with multigroup VOC degraded filtering layers 21 and uviol lamp 22.Preferably, it is more Group VOC degraded filtering layers 21 are connected and are arranged at intervals with uviol lamp 22, so as to realize multistage degraded, can increase substantially VOC degradeds Efficiency, realize that VOC degradation efficiencies are higher than 95%.In the structure shown here, it is provided with the side of the VOC degraded filtering layers 21 positioned at head and the tail Uviol lamp 22, and it is provided with uviol lamp 22 positioned at middle VOC degraded filtering layers 21 both sides.
Preferably, the size of VOC degradeds filtering layer 21 is the radial dimension for the gas flow paths being completely covered in cavity volume 23, The air inlet of cavity volume is separated with gas outlet, waste gas can only be degraded by VOC degraded filtering layers successively after entering cavity volume 23.Institute The fibre diameter for the quartz fibre stated is below 15um.Described titanium dioxide (titanium ore crystal) is to be attached on quartz fibre.
Pretreatment unit 1 includes dedusting mechanism 11 and demisting oil removing mechanism 12.Dedusting mechanism 11 and demisting oil removing mechanism 12 It is two equipment (such as Fig. 1) or the equipment of integration of split；Or pretreatment unit 1 can also be one while have Dedusting, the equipment of demisting deoiling function.
Pretreatment unit 1, VOC degradation treatments device 2 and air exhauster 3 can be split or be assembled integrally, Structure is more compact.
In use, opening air exhauster 3, the waste gas containing VOC first passes around the dedusting of dedusting mechanism 11, avoids dust from being attached to Degraded filtering layer and the degraded that VOC is influenceed on ultraviolet lamp；Such as (oil) containing mist in waste gas, demisting (oil) is also needed after waste gas removing dust, Waste gas enters the key equipment VOC decomposition apparatus 2 of the system after foregoing pretreatment unit 1, and its principle is photocatalyst in light Irradiation under, similar photosynthetic light-catalyzed reaction can be produced, produce the extremely strong free hydroxy of oxidability and activity Oxygen, there is very strong photoredox function, it is oxidable to decompose various organic compounds and part inorganic matter, bacterium can be destroyed The protein of cell membrane and solidification virus, can kill bacterium and decomposing organic pollutant, organic pollution be resolved into pollution-free Water (H2O) and carbon dioxide (CO2), thus with extremely strong sterilization, deodorization, mould proof, anti-fouling and self-cleaning, purification gas function.
When Nano titanium dioxide ultramicron receives the ultraviolet irradiation that wavelength is below 388nm, inside it due to Absorb luminous energy and excite generation electron hole pair, be i.e. photo-generated carrier, then move to its surface rapidly and activate adsorbed Oxygen and moisture, the free hydroxy (OH) of activity and active oxygen (O) are produced, when pollutant and its surface of bacterial adsorption When, chain type degradation reaction will occur.
The organic matter contacted is is converted to titanium dioxide by the characteristic of photocatalyst using the oxygen molecule in air and hydrone With water, itself does not change carbon, can but promote the material of chemical reaction, and the term of validity is very permanent in theory, maintenance cost is low, And do not produce secondary pollution.Meanwhile titanium dioxide itself is nontoxic, the various necks such as food, medicine, cosmetics are widely used in Domain.

Claims (10)

  1. A kind of 1. VOC degradation treatments system, it is characterised in that：The system includes pretreatment unit, the VOC degradeds being sequentially communicated Processing unit and air exhauster；Described VOC decomposition apparatus includes VOC degraded filtering layers and uviol lamp, and the VOC degrades filtering layer by covering The quartz fibre for being stamped titanium dioxide is made.
  2. 2. VOC degradation treatments system according to claim 1, it is characterised in that：Described VOC decomposition apparatus includes confession The cavity volume of gas flowing, cavity volume are built-in with one or more groups of VOC degraded filtering layers and uviol lamp.
  3. 3. VOC degradation treatments system according to claim 2, it is characterised in that：Described multigroup VOC degraded filtering layers and purple Outer lamp string connection is arranged at intervals.
  4. 4. VOC degradation treatments system according to claim 1, it is characterised in that：In each described VOC degraded filtering layers One or both sides are provided with uviol lamp.
  5. 5. VOC degradation treatments system according to claim 2, it is characterised in that：The size of VOC degraded filtering layer has been The radial dimension of gas flow paths in all standing cavity volume.
  6. 6. VOC degradation treatments system according to claim 1, it is characterised in that：The fibre diameter of described quartz fibre For below 15um.
  7. 7. VOC degradation treatments system according to claim 1, it is characterised in that：Described VOC degraded filtering layers are by quartzy fine Structure type made of dimension is silica wool, quartzy thin slice, quartz fabric or quartz fiber felt.
  8. 8. VOC degradation treatments system according to claim 1, it is characterised in that：Described titanium dioxide is attached to quartz On fiber.
  9. 9. VOC degradation treatments system according to claim 1, it is characterised in that：Described pretreatment unit includes dedusting Mechanism and demisting oil removing mechanism, dedusting mechanism and two equipment that demisting oil removing mechanism is split or integrated equipment；Or Person, pretreatment unit are one while have dedusting, the equipment of demisting deoiling function.
  10. 10. VOC degradation treatments system according to claim 1, it is characterised in that：Described pretreatment unit, VOC degradeds Processing unit and air exhauster are assembled integrally.
CN201710946311.0A 2017-10-12 2017-10-12 A kind of VOC degradation treatments system Pending CN107694330A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108993461A (en) * 2018-07-23 2018-12-14 西南大学 The loading nano-titania tubular reactor of efficient degradation formaldehyde and its preparation

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090060800A1 (en) * 2007-08-31 2009-03-05 Unifrax I Llc Substrate Mounting System
CN101746845A (en) * 2008-11-28 2010-06-23 中国科学院西安光学精密机械研究所 A waste water and waste gas photodegradation apparatus and system thereof
CN202361584U (en) * 2011-12-16 2012-08-01 浙江和谐光催化科技有限公司 Photocatalytic purifying antibacterial air pipe device
CN105964136A (en) * 2016-06-08 2016-09-28 浙江奇彩环境科技股份有限公司 Organic exhaust gas degradation method and device
CN206094328U (en) * 2016-08-25 2017-04-12 中山市奥鸿电子科技有限公司 Air purification device based on light catalytic technology
CN106582265A (en) * 2016-11-16 2017-04-26 中山大学 Photocatalytic oxidation air purification device and method
CN107175088A (en) * 2017-07-26 2017-09-19 湖北菲利华石英玻璃股份有限公司 A kind of preparation method of the quartzy blanket of photocatalyst catalysis
CN207445976U (en) * 2017-10-12 2018-06-05 德·埃德温·大伟 A kind of VOC degradation treatments system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090060800A1 (en) * 2007-08-31 2009-03-05 Unifrax I Llc Substrate Mounting System
CN101746845A (en) * 2008-11-28 2010-06-23 中国科学院西安光学精密机械研究所 A waste water and waste gas photodegradation apparatus and system thereof
CN202361584U (en) * 2011-12-16 2012-08-01 浙江和谐光催化科技有限公司 Photocatalytic purifying antibacterial air pipe device
CN105964136A (en) * 2016-06-08 2016-09-28 浙江奇彩环境科技股份有限公司 Organic exhaust gas degradation method and device
CN206094328U (en) * 2016-08-25 2017-04-12 中山市奥鸿电子科技有限公司 Air purification device based on light catalytic technology
CN106582265A (en) * 2016-11-16 2017-04-26 中山大学 Photocatalytic oxidation air purification device and method
CN107175088A (en) * 2017-07-26 2017-09-19 湖北菲利华石英玻璃股份有限公司 A kind of preparation method of the quartzy blanket of photocatalyst catalysis
CN207445976U (en) * 2017-10-12 2018-06-05 德·埃德温·大伟 A kind of VOC degradation treatments system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108993461A (en) * 2018-07-23 2018-12-14 西南大学 The loading nano-titania tubular reactor of efficient degradation formaldehyde and its preparation

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Application publication date: 20180216

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