CN209138347U - A kind of volatile organic compounds processing unit of low energy consumption - Google Patents
A kind of volatile organic compounds processing unit of low energy consumption Download PDFInfo
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- CN209138347U CN209138347U CN201821710145.0U CN201821710145U CN209138347U CN 209138347 U CN209138347 U CN 209138347U CN 201821710145 U CN201821710145 U CN 201821710145U CN 209138347 U CN209138347 U CN 209138347U
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Abstract
The utility model relates to gas purification processing technology fields, the volatile organic compounds processing unit of specifically a kind of low energy consumption, including micropore gas absorption regeneration module, gas catalysis oxidation reaction module, sensing detection module, power supply and electrical control module, the utility model compared with the existing technology, is made of micropore gas absorption regeneration module, gas catalysis oxidation reaction module, sensing detection module, power supply and electrical control module.Micropore gas absorption regeneration module can directly adsorb VOCs gas；After adsorption saturation, the heater of material bottom is heated to poromerics so that VOCs desorbing gas；The VOCs gas being then desorbed carries out catalytic oxidation to organic dirt by the unlatching of gas catalysis oxidation reaction module and is decomposed into carbon dioxide and water.The utility model has equipment manufacturing costs and operating cost low, and the VOCs gas purification suitable for low concentration is handled, and has purification efficiency high, low energy consumption, has a wide range of application, adaptable feature.
Description
Technical field
The utility model relates to gas purification processing technology field, the volatile organic gas of specifically a kind of low energy consumption
Body processing unit.
Background technique
Volatile organic compound VOCs pollution has become one of significant contributor of atmosphere pollution, including prints, applies
The industries such as material, spray painting, fuel oil, chemical industry, medicine, cultivation, food and drink can generate VOCs.According to the difference of VOCs concentration magnitude, and
Using different processing methods, current main processing method has burning, absorption, absorption, condensation, plasma, photocatalysis etc..
Heat accumulating type oxidizing process RTO, i.e. Regenerative Thermal Oxidizer are incited somebody to action at a high temperature of > 700 DEG C
The direct combustion oxidation of VOCs in exhaust gas is generally adapted at carbon dioxide and water to VOCs concentration > 5000mg/m3 higher concentration
Exhaust gas is handled, and apparatus and process is more complex, and energy consumption is high for processing.
Heat accumulating type catalytic oxidation RCO, i.e. Regenerative Catalytic Oxidizers, are at 300-450 DEG C
Lower temperature under, the VOCs in exhaust gas is catalytically oxidized to corresponding carbon dioxide and water, be suitble to VOCs concentration in 2000-
The intermediate concentration exhaust gas of 5000mg/m3 carries out purified treatment.Because RCO catalyst mainly uses the noble metals such as platinum, palladium, molybdenum, material
It is higher with equipment cost and operating cost.
Corresponding concentration < 2000mg/m3 low concentration VOCs gas treatment, absorption method is more effective, such as active carbon adsorption,
Mainly organic molecule to be adsorbed using the micropore of the Large ratio surface of carbon material, feature is that adsorption plant is simple, Non-energy-consumption,
But it is needed replacing after activated carbon adsorption saturation, higher operating costs.
The skills such as photochemical catalytic oxidations and plasma oxidation such as the technology of the photoelectrocatalysis removal VOC of new development mainly includes
Art is suitble to carry out purified treatment in the moderate concentration gas of 500-2000PPM to concentration, has good cost performance；And to dense
The energy consumption of degree≤500PPM low concentration VOCs gas, opposite processing is larger and efficiency is lower, and treatment effect is poor.
Because major part VOCs concentration caused by actual industrial and life belongs to low strength range, how to develop a kind of fit
The lower technology purified with the lower volatile organic compounds of processing cost of concentration is closed, is effectively to solve atmosphere pollution at present suddenly
It needs.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies of the prior art and provide a kind of volatile organic compounds of low energy consumption
Processing unit, with the lower purification with the lower volatile organic compounds of processing cost of suitable concentration.
In order to achieve the above object, the utility model is a kind of volatile organic compounds processing unit of low energy consumption, including
Micropore gas absorption regeneration module, gas catalysis oxidation reaction module, sensing detection module, power supply and electrical control module,
It is characterized in that: equipped with one group or more of micropore gas absorption regeneration module and one group or more between inlet plenum and discharge chamber
Gas catalysis oxidation reaction module, sensing detection module are individually positioned in inlet plenum and discharge chamber, sensing detection module it is defeated
Enter output end to connect with the signal of power supply and electrical control module transmission control terminal, the power of power supply and electrical control module
Output end is connect with the input terminal of the input terminal of micropore gas absorption regeneration module and gas catalytic oxidation module respectively.
The micropore gas absorption regeneration module includes adsorbent material bracket, desorption and regeneration heater and micro-porous adsorption material
Material, the upper and lower surface of adsorbent material bracket are equipped with desorption and regeneration heater, and microporous adsorbent material is mounted on desorption and regeneration heating
The surface of device, desorption and regeneration heater are connect with power supply and electrical control module.
The microporous adsorbent material be with a thickness of 10-50mm membrane structure or size 1-10mm spherical shape or stick
The honeycomb tubular type cube or cylindrical structure of shape nutty structure or aperture in 1-10mm.
The microporous adsorbent material and adsorbent material bracket is parallel plate type array structure, microporous adsorbent material and absorption
Gas passage, the spacing 2-20mm of gas passage are equipped between stock support.
The catalysis material of the gas catalysis oxidation reaction module is the nanostructure for being 10-100nm by particle size
Crystal composition, shape are sheet, spherical, column or fiber.
It is urged in the gas catalysis oxidation reaction module by the plasma that a pair of or more cathode and anode form
Change reaction chamber, cathode is arranged in parallel with anode grid substrate, and quartz or oxidation with a thickness of 0.1-3mm are equipped between cathode and anode
Aluminium ceramic dielectric layer, the indirect frequency of cathode and anode be 10-100KHz, the high-frequency ac power that voltage is 0.5-20KV,
Interelectrode current density is 0.01-10mA/cm2。
The light being made of in the gas catalysis oxidation reaction module a set of or more ultraviolet source and catalysis material
Electrocatalysis oxidation reaction room, ultraviolet source use electrodeless quartz lamp, wavelength 250-400nm, and unit light source power is 0.1-
2kW, using high frequency or it is microwave induced shine.
The sensing detection module is made of optical ionic detector PID and temperature sensor TC, optical ionic detector PID
The total concentration TVOC range of detection is 1-5000PPM, and the temperature range of temperature sensor TC detection is 0-500 DEG C, the electricity
The power bracket of source and electrical control module is 10-10000W.
The utility model compared with the existing technology, by micropore gas absorption regeneration module, gas catalysis oxidation reaction module,
Sensing detection module, power supply and electrical control module composition.Micropore gas absorption regeneration module can directly carry out VOCs gas
Absorption；After adsorption saturation, the heater of material bottom is heated to poromerics so that VOCs desorbing gas；Then desorption
VOCs gas catalytic oxidation carried out to organic dirt by the unlatching of gas catalysis oxidation reaction module be decomposed into dioxy
Change carbon and water.The utility model has equipment manufacturing costs and operating cost low, at the VOCs gas purification of low concentration
Reason has purification efficiency high, and low energy consumption, has a wide range of application, adaptable feature.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the structure chart of the utility model micropore gas absorption regeneration module.
Fig. 3 is the top view of the utility model micropore gas absorption regeneration module.
Specific embodiment
The utility model is described further now in conjunction with attached drawing.
Referring to Fig. 1, the utility model is a kind of volatile organic compounds processing unit of low energy consumption, including micropore gas is inhaled
Attached regeneration module, gas catalysis oxidation reaction module, sensing detection module, power supply and electrical control module, inlet plenum 2 are equipped with
Air inlet 1, discharge chamber 5 are equipped with gas outlet 6.Micropore gas between inlet plenum 2 and discharge chamber 5 equipped with one group or more adsorbs
The gas catalysis oxidation reaction module 4 of regeneration module 3 and one group or more, sensing detection module are individually positioned in 2 He of inlet plenum
In discharge chamber 5, the input/output terminal of sensing detection module is connect with the signal of power supply and electrical control module 7 transmission control terminal,
The power output end of power supply and electrical control module 7 input terminal and gas with micropore gas absorption regeneration module 3 respectively
The input terminal of catalytic oxidation module 4 connects.
Referring to figs. 2 and 3, micropore gas absorption regeneration module 3 includes adsorbent material bracket 10, desorption and regeneration heater 11
With microporous adsorbent material 12, the upper and lower surface of adsorbent material bracket 10 is equipped with desorption and regeneration heater 11, microporous adsorbent material
12 are mounted on the surface of desorption and regeneration heater 11, and desorption and regeneration heater 11 is connect with power supply and electrical control module 7, desorption
Regenerative heater 11 is heated using resistance-type or high-frequency induction formula, maximum temperature≤200 DEG C.Adsorbent material bracket 10 is using stainless
At least one of steel, ceramics or graphite material is made, and desorption and regeneration heater 11 includes the heating of resistance wire, graphite fibre etc.
Material, temperature range are controllable at 30-250 DEG C.
Microporous adsorbent material 12 is by specific surface >=500m2The carbon or oxide poromerics of/g forms, micro-porous adsorption material
Material 12 have the function of adsorb VOCs, for micropore carbon particle, fiber, carbon nanotube, carbon nano-fiber, carbon aerogels, graphene,
It is aluminium oxide, silica, the nanofiber of magnesia or zeolite, aeroge, molecular sieve, any one or more than one in particle
Mixture；Microporous adsorbent material 12 be with a thickness of 10-50mm membrane structure or size 1-10mm spherical shape or stick
The honeycomb tubular type cube or cylindrical structure of granular texture or aperture in 1-10mm.Pore size is 0.1-1nm, absorption
Temperature is 10-50 DEG C, when adsorbing VOCs to after saturation, can heat desorption, desorption temperature is 100-200 DEG C, and desorption time is
It can be desorbed within 0.5-5 hours completely.
Microporous adsorbent material 12 and adsorbent material bracket 10 are parallel plate type array structure, microporous adsorbent material 12 and absorption
Gas passage, the spacing 2-20mm of gas passage are equipped between stock support 10.
The catalysis material of gas catalysis oxidation reaction module 4 is WO3、CuO、SnO2、TiO2、ZnO、MgO、CaO、Fe2O3、
MnO2、Mn3O4、V2O5, at least one of NiO metal oxide, in metal oxide can doped with Pt, Pd, Au, Ag, Cu,
At least one of Fe, N, F, C element.Catalysis material is made of the nanostructure crystal that particle size is 10-100nm, shape
Shape is sheet, spherical, column or fiber.Catalysis material uses spraying, roller coating, printing, dip-coating, chemical vapor deposition CVD, physics
Vapor deposition PVD etc. techniques are coated on ceramics, glass or metal base surface and form film, film with a thickness of 0.1-10 μ
m。
High-frequency capacitive dielectric barrier discharge formula plasma and catalysis material can be used in gas catalysis oxidation reaction module 4
In conjunction with mode carry out, mode of the ultraviolet source in conjunction with catalysis material can also be used and carry out.Through plasma-catalytic ionization
After gas and catalysis material surface afterwards comes into full contact with, the catalytic efficiency of gas reaction can be improved.
It is reacted in gas catalysis oxidation reaction module 4 by the plasma-catalytic that a pair of or more cathode and anode form
Room, cathode is arranged in parallel with anode grid substrate, and quartz or aluminium oxide ceramics with a thickness of 0.1-3mm are equipped between cathode and anode
Dielectric layer, the indirect frequency of cathode and anode be 10-100KHz, the high-frequency ac power that voltage is 0.5-20KV, between electrode
Current density be 0.01-10mA/cm2。
The power supply that condenser type catalysis reaction electrode is applied can be pulse DC or alternating current, with 0.5-10kV, 10-
The high-voltage pulse power source master of 50kHz, power density are 0.1-100W/m2.Capacitive electrode can be made into tubular type or it is flat etc. from
Daughter generator, i.e., in quartz ampoule surfaces externally and internally or quartz plate upper and lower surface installation metallic film or mesh electrode as positive and negative
Pole, generation plasma is reacted after connecing high-frequency alternating power supply.
The photoelectrocatalysis being made of in gas catalysis oxidation reaction module 4 a set of or more ultraviolet source and catalysis material
Oxidation reaction chamber, ultraviolet source use electrodeless quartz lamp, wavelength 250-400nm, and unit light source power is 0.1-2kW, use
High frequency is microwave induced luminous.Preferably, electrodeless quartz lamp is the electrodeless induction ultraviolet lamp of quartz tube type, and unit light source power is not low
In 10W, have the characteristics that high-efficient, the service life is long.
Sensing detection module is made of optical ionic detector PID and temperature sensor TC, optical ionic detector PID detection
Total concentration TVOC range is 1-5000PPM, and the temperature range of temperature sensor TC detection is 0-500 DEG C；Can real-time monitoring always have
Outside the concentration of machine object TVOC and the temperature of desorption and regeneration heater 11, the indexs such as flow velocity, air pressure of also detectable gas.It is locating
For the total organic matter TVOC concentration of reason in 1-500PPM, it is 10-10000m that unit module, which handles flow,3/h。
Power supply and electrical control module 7, power bracket 10-10000W.Power supply be micropore gas absorption regeneration module 3,
Gas catalysis oxidation reaction module 4, sensing detection module are powered.Photoion is installed respectively in inlet plenum 2 and discharge chamber 5
Detector is measured in real time the total organic matter TVOC concentration of the gas of disengaging, and optical ionic detector has small in size, response
Fast feature.Electrical control module sentences the total organic matter TVOC concentration value that optical ionic detector detects by computer
It is disconnected, micropore gas absorption regeneration module 3 can be started and gas catalytic oxidation module 4 works, obtain the technological parameter of optimization
It may make that the operational efficiency of device is high and low energy consumption.
The processing method of the utility model includes the following steps: that step 1, microporous adsorbent material are 1-500PPM to concentration
VOCs gas adsorbed.Step 2, after the gas concentration of microporous adsorbent material absorption reaches saturation, desorption and regeneration heating
Device heats microporous adsorbent material, and the VOCs for adsorbing microporous adsorbent material is desorbed, and microporous adsorbent material regenerates simultaneously
It can continue to adsorb VOCs gas.Step 3, gas catalysis oxidation reaction module is opened, and it is anti-to carry out catalysis oxidation to organic pollutant
It answers, VOCs is decomposed into carbon dioxide and water and discharges.
General major part VOCs gas can be in 70-200 DEG C of range volatilization desorption, and the VOCs concentration of discharge chamber is higher at this time,
It generally can be in 500-1000PPM range.When heating regeneration, while opening gas catalysis oxidation reaction module, can effectively by
The VOCs of desorption generates CO through gas catalysis oxidation reaction module2And H2The discharge of O gas.Photoelectrocatalysioxidization oxidization module mainly includes
Plasma ionization or UV activation, then in conjunction with catalysis material, VOCs oxidation efficiency may make to further increase.
Embodiment 1
When VOCs concentration is less than 200PPM, such as with 50-200PPM concentration, 10000m3For/h air quantity, about using area
10m2Microporous adsorbent material, adsorbent material be micropore honeycomb fill oxidate zeolite, aperture 3mm, VOCs go out gas concentration and exist
Within 5PPM, reach saturation after about adsorbable 30h.The micropore gas absorption regeneration module heating desorption opening time of device sets
It sets in 3h, VOCs concentration is desorbed in 200-500PPM range at 200 DEG C in temperature setting.Add in micropore gas absorption regeneration module
While thermal desorption is opened, gas catalysis oxidation reaction module is opened, using ultraviolet source catalytic oxidation technique, power 1kW,
The higher VOCs catalysis oxidation of concentration can be decomposed into CO at this time2And H2O, processing time about 3h can aoxidize the VOCs of desorption
It decomposes.Whole energy consumption is about individually using 15% or so of photoelectrocatalysioxidization oxidization processing energy consumption, and energy-saving benefit is significant.
Embodiment 2
When VOCs concentration is less than 300PPM, such as in 100-300PPM concentration range, 10000m3For/h air quantity, use
Area about 20m2Microporous adsorbent material, adsorbent material be microporous carbon fiber film, go out gas concentration with a thickness of 20mm, VOCs and exist
Within 10PPM, reach saturation after about adsorbable 20h.When unlatching is desorbed in the heating of the micropore gas absorption regeneration module of device
Between be arranged in 4h, temperature setting at 150 DEG C, be desorbed VOCs concentration in 500-1000PPM range.In micropore gas absorption regeneration mould
While block heating desorption is opened, gas catalysis oxidation reaction module, using plasma catalytic oxidation technique are opened, power is
The higher VOCs catalysis oxidation of the concentration of desorption can be decomposed into CO at this time by 4kW2And H2O, processing time about 4h can will be desorbed
VOCs oxygenolysis.Whole energy consumption is about individually using 30% or so of photoelectrocatalysioxidization oxidization processing energy consumption, and energy-saving benefit is bright
It is aobvious.
Embodiment 3
When VOCs concentration is less than 500PPM, such as with 300-500PPM concentration, 30000m3For/h air quantity, using area
About 80m2Microporous adsorbent material, adsorbent material be microporous aluminum oxide Extruded Monolithic Celluar Ceramics, aperture 2mm, VOCs go out gas concentration
Within 10PPM, reach saturation after about adsorbable 18h.When the micropore gas absorption regeneration module heating desorption of device is opened
Between be arranged in 6h, temperature setting at 180 DEG C, be desorbed VOCs concentration in 600-1000PPM range.In micropore gas absorption regeneration mould
While block heating desorption is opened, gas catalysis oxidation reaction module, using plasma catalytic oxidation technique are opened, power is
The higher VOCs catalysis oxidation of concentration can be decomposed into CO at this time by 6kW2And H2O, processing time about 6h can be by the VOCs of desorption
Oxygenolysis.Whole energy consumption is about individually using 20% or so of photoelectrocatalysis processing energy consumption, and energy-saving benefit is obvious.
It can be as needed between the micropore gas absorption regeneration module and gas catalysis oxidation reaction module of the utility model
Carry out any combination.Such as using two groups of micropore gas absorption regeneration modules and one group of gas catalysis oxidation reaction module as a set of
System, it is another set of to be desorbed again while work, i.e. a set of absorption work can be switched in two groups of micropore gas absorption regeneration modules
Work is given birth to, the VOCs gas after desorption is CO through gas catalysis oxidation reaction module reaction treatment2And H2It discharges after O, has in this way
Higher treatment effeciency.If the VOCs concentration of air inlet is 300PPM, it first is adsorbed to saturation through about 20h by first group of adsorbent material,
Start to carry out heating desorption simultaneously, starting gas catalysis oxidation reaction module carries out the VOCs of oxygenolysis desorption to discharging, and takes off
Appendix agreement 3h may make regneration of adsorbent material；When first group of micropore gas absorption regeneration module starts desorption, air inlet VOCs is cut
It shifts to second group of micropore gas absorption regeneration module and carries out absorption work, when saturation switches to regeneration desorption and gas catalysis oxidation
Reaction module carries out reaction decomposition.The decomposition removal that efficient can carry out VOCs repeatedly.
Claims (8)
1. a kind of volatile organic compounds processing unit of low energy consumption, including micropore gas absorption regeneration module, gas catalysis oxygen
Change reaction module, sensing detection module, power supply and electrical control module, it is characterised in that: inlet plenum (2) and discharge chamber (5) it
Between equipped with one group or more of micropore gas absorption regeneration module (3) and one group or more of gas catalysis oxidation reaction module
(4), sensing detection module is individually positioned in inlet plenum (2) and discharge chamber (5), the input/output terminal and electricity of sensing detection module
The signal of source and electrical control module (7) transmits control terminal connection, the power output end of power supply and electrical control module (7)
It is connect respectively with the input terminal of the input terminal of micropore gas absorption regeneration module (3) and gas catalytic oxidation module (4).
2. a kind of volatile organic compounds processing unit of low energy consumption according to claim 1, it is characterised in that: described
Micropore gas absorption regeneration module (3) includes adsorbent material bracket (10), desorption and regeneration heater (11) and microporous adsorbent material
(12), the upper and lower surface of adsorbent material bracket (10) is equipped with desorption and regeneration heater (11), microporous adsorbent material (12) installation
On the surface of desorption and regeneration heater (11), desorption and regeneration heater (11) is connect with power supply and electrical control module (7).
3. a kind of volatile organic compounds processing unit of low energy consumption according to claim 2, it is characterised in that: described
Microporous adsorbent material (12) be with a thickness of 10-50mm membrane structure or size 1-10mm spherical shape or rod-shaped particles shape knot
The honeycomb tubular type cube or cylindrical structure of structure or aperture in 1-10mm.
4. a kind of volatile organic compounds processing unit of low energy consumption according to claim 2, it is characterised in that: described
Microporous adsorbent material (12) and adsorbent material bracket (10) are parallel plate type array structure, microporous adsorbent material (12) and adsorption material
Expect to be equipped with gas passage, the spacing 2-20mm of gas passage between bracket (10).
5. a kind of volatile organic compounds processing unit of low energy consumption according to claim 1, it is characterised in that: described
The catalysis material of gas catalysis oxidation reaction module (4) is made of the nanostructure crystal that particle size is 10-100nm, shape
Shape is sheet, spherical, column or fiber.
6. a kind of volatile organic compounds processing unit of low energy consumption according to claim 1, it is characterised in that: described
The plasma-catalytic reaction chamber being made of in gas catalysis oxidation reaction module (4) a pair of or more cathode and anode, yin
Pole is arranged in parallel with anode grid substrate, and quartz or aluminium oxide ceramics medium with a thickness of 0.1-3mm are equipped between cathode and anode
Layer, the indirect frequency of cathode and anode be 10-100kHz, the high-frequency ac power that voltage is 0.5-20kV, interelectrode electricity
Current density is 0.01-10mA/cm2。
7. a kind of volatile organic compounds processing unit of low energy consumption according to claim 1, it is characterised in that: described
The photoelectrocatalysioxidization oxidization being made of in gas catalysis oxidation reaction module (4) a set of or more ultraviolet source and catalysis material is anti-
Answer room, ultraviolet source uses electrodeless quartz lamp, wavelength 250-400nm, and unit light source power is 0.1-2kW, using high frequency or
It is microwave induced to shine.
8. a kind of volatile organic compounds processing unit of low energy consumption according to claim 1, it is characterised in that: described
Sensing detection module is made of optical ionic detector PID and temperature sensor TC, the total concentration of optical ionic detector PID detection
TVOC range is 1-5000PPM, and the temperature range of temperature sensor TC detection is 0-500 DEG C, the power supply and electrical equipment control
The power bracket of module (7) is 10-10000W.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046019A (en) * | 2018-10-22 | 2018-12-21 | 上海纳晶科技有限公司 | A kind of the volatile organic compounds processing unit and method of low energy consumption |
| CN114076393A (en) * | 2020-08-18 | 2022-02-22 | 广东美的制冷设备有限公司 | Air purification control method and device, air conditioner and readable storage medium |
-
2018
- 2018-10-22 CN CN201821710145.0U patent/CN209138347U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046019A (en) * | 2018-10-22 | 2018-12-21 | 上海纳晶科技有限公司 | A kind of the volatile organic compounds processing unit and method of low energy consumption |
| CN109046019B (en) * | 2018-10-22 | 2024-01-02 | 上海纳晶科技有限公司 | Low-energy-consumption organic volatile gas treatment device and method |
| CN114076393A (en) * | 2020-08-18 | 2022-02-22 | 广东美的制冷设备有限公司 | Air purification control method and device, air conditioner and readable storage medium |
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