CN109011868A - A kind of catalyst system and its application and purification method and purification system - Google Patents
A kind of catalyst system and its application and purification method and purification system Download PDFInfo
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- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
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Abstract
The invention belongs to organic waste-gas purification field, the purification method and purification system of a kind of catalyst system and its application and organic exhaust gas are disclosed.The purification method of the organic exhaust gas includes that organic exhaust gas to be clean is carried out to photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction in the presence of catalyst system, the catalyst system is made of dark catalysis material and light source two parts, and the light source, which is radiated on dark catalysis material, generates enough heats to cause heat catalysis or photic photo-thermal concerted catalysis reaction.Catalyst system provided by the invention uses light source to be radiated at the enough heats of the dark spontaneous generation in catalysis material surface to cause heat catalysis or photic photo-thermal concerted catalysis reaction, can not only improve the purification efficiency of organic exhaust gas, but also can be realized energy-efficient.
Description
Technical field
The invention belongs to organic waste-gas purification process fields, and in particular to a kind of catalyst system and its application and organic exhaust gas
Purification method and purification system.
Background technique
VOCs refers to that saturated vapor pressure is greater than organic compound of the boiling point at 50-260 DEG C under 133.32Pa, normal pressure at normal temperature
Object, any organic solid or liquid that can either volatilize at normal temperatures and pressures.The harm of VOCs mainly includes two kinds: one is
It directly endangers, meeting stimulating human and animal breath system, leads to respiratory disease, and number of types of VOCs has cause
Cancer, teratogenesis, mutagenic effect；Another kind is secondary harm, and VOCs can cause some photochemical reactions in air, cause mist
The disasters such as haze and photochemical fog.
With the continuous development and social progress of China's economy, the discharge amount of VOCs is also being continuously increased, if without
It is effectively treated, it is strong to the body of natural environment and periphery related personnel to can be discharged into environment meeting in a manner of uncontrollable discharge
The serious influence of Kang Zaocheng.For this purpose, the treatment research for being directed to VOCs is always hot issue and the future of environmental science
Scientific research in one period.
The processing method of VOCs mainly uses at present: condensation method, absorption method, combustion method etc., they are deposited to varying degrees
In equipment investment height, operating cost is high, processing is narrow-minded, job insecurity, occupied space is big, treatment effeciency is not high, there are two
It is the problems such as secondary pollution, specific as follows:
(1) condensation method: this method is suitable for the exhaust-gas treatment that concentration is high, temperature is low, air quantity is small, but measure investment it is big,
Energy consumption is high, operating cost is big, therefore does not use this method generally for " triphen " pollution control in spraying operation, and lacquer spraying waste gas has
There is the features such as air quantity is big, concentration is low, coating cloud is more, before entering condensation process, it is necessary to design (the removal of corresponding pretreating process
Coating cloud particulate matter), it not so can block condenser.
(2) absorption method: this method is suitable for the exhaust-gas treatment that concentration is low, pollutant is not required to recycling.Wherein, active carbon one
The common adsorbent material of kind, but individually absorbing process is not particularly suited for long-term cleaning organic waste gas, if not being equipped with regeneration
Module, then active carbon needs to regularly replace, and operating cost is very high.
(3) combustion method: low energy consumption for this method, purifying rate height (95%-97%), without secondary pollution, simple process, operation side
Just, suitable for high temperature, high concentration, small air quantity VOCs treatment, be not suitable for for low concentration, Wind Volume organic exhaust gas
It administers, and " triphen " concentration in lacquer spraying waste gas is generally below 300-400mg/m3, therefore using direct combustion method, catalysis burning
Method processing is all improper, and contains many coating cloud particulate matters in lacquer spraying waste gas, it is necessary to pretreatment is carried out, if being directly entered burning
Module can make catalyst poisoning and generate the risk of explosion.
In addition, Adsorption Concentration-Production by Catalytic Combustion Process has also been widely adopted as purification method most practical at present, this
When, in the treatment process of organic exhaust gas, catalyst system generally use external heat source provide energy thermocatalytic mode, and by
This bring high energy consumption makes the cost of organic waste-gas purification high.
Summary of the invention
The purpose of the present invention is to solve using problem above existing for existing thermocatalytic mode cleaning organic waste gas,
And provide the purification method and purification system of the new catalyst system of one kind and its application and organic exhaust gas.
Catalyst system provided by the invention is made of dark catalysis material and light source two parts, and the light source is radiated at dark color
Enough heats are generated on catalysis material to cause heat catalysis or photic photo-thermal concerted catalysis reaction.
Preferably, the active material in the dark catalysis material is selected from transition metal oxide, carbon material and noble metal
At least one of material.Most preferably, the active material in the dark catalysis material is transition metal oxide, carbon material
With the mixture or noble metal and transition metal oxide and/or carbon material of transition metal oxide and/or precious metal material
Mixture, above several active materials can play the role of very perfect concerted catalysis at this time.The transiting metal oxidation
The specific example of object includes but is not limited to: titanium oxide, barium oxide, chromated oxide, Mn oxide, ferriferous oxide, cobalt oxidation
At least one of object, nickel oxide, Cu oxide, zinc oxide and tungsten oxide.The specific example of the carbon material includes
But it is not limited to: at least one of fullerene, carbon fiber, carbon nanotube (CNT), carbon aerogels, graphene and active carbon.It is described
The specific example of precious metal material includes but is not limited to: at least one of gold, silver, ruthenium, rhodium, palladium, osmium, iridium and platinum.When described
When active material in dark catalyst material is precious metal material, put into again after precious metal material need to being supported on carrier
It uses, wherein the carrier can be above-mentioned transition metal oxide and/or carbon material (at this point, both substances both play work
Property component effect, and play carrier function), or other do not have catalytic activity carriers.In addition, when the dark color is urged
When active material in agent material is precious metal material, the content of the noble metal is with other active materials and without catalysis
The weight ratio of the total content of active carrier is preferred 1:(20-1000).
Preferably, the light source is selected from least one of ultraviolet light, visible light, infrared light or full spectrum sunlight.
Preferably, the light intensity of the light source is 100-1500mW/cm2。
The present invention also provides application of the catalyst system in organic waste-gas purification.
The present invention also provides a kind of purification methods of organic exhaust gas, wherein this method includes by organic waste to be clean
Gas carries out photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction in the presence of above-mentioned catalyst system.
A preferred embodiment of the invention, the purification method of the organic exhaust gas the following steps are included:
Dedusting: organic exhaust gas to be clean is filtered to remove particulate matter therein and viscosity component；
Gas absorption: Adsorption Concentration is carried out to the organic matter in the organic exhaust gas after dedusting using adsorbent material；
Catalytic degradation reaction: the organic exhaust gas after being concentrated through gas absorption is subjected to photic heat in above-mentioned catalyst system
Catalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction.
Preferably, the purification method of the organic exhaust gas further includes the desorbing gas step after the catalytic degradation reaction
It is rapid: resulting at least partly tail gas will to be back in the gas absorption step after the catalytic degradation reaction, and utilize tail
The adsorbent material of saturation is desorbed to realize the regeneration of adsorbent material in gas waste heat, and the organic matter being concentrated being desorbed draws
Enter and carries out the catalytic degradation reaction in the catalyst system again.At this point, if the waste heat from tail gas is unable to reach adsorbent material
Desorption temperature, external heating can be used to make its desorption.Wherein, the tail gas being back in the adsorption step accounts for total tail gas amount
1/3vol% or more, preferably accounts for (1/2-2/3) vol%, remainder tail gas outlet or enters subsequent handling.The gas is de-
Attached step can be such that adsorbent material realization is desorbed, is organic using waste heat from tail gas (if desired, can also be equipped with extra heat source heating)
Object is realized concentration while being carried out, or can omit this step, is applied alone extra heat source to heat so that adsorbent material realization is desorbed, is organic
Object realizes concentration.
Preferably, the condition of the catalytic degradation reaction includes: the body of organic exhaust gas during the catalytic degradation reaction
Product air speed is 10000-40000h-1。
Preferably, the adsorbent material in active carbon, zeolite molecular sieve, activated alumina, silica gel and resin extremely
Few one kind.
Preferably, the condition of the Adsorption Concentration includes air inlet exhaust temperature≤60 DEG C, the volume space velocity of organic exhaust gas
For 10000-40000h-1, concentration≤2000mg/m of organic matter in organic exhaust gas3。
In addition, the present invention also provides a kind of purification systems, wherein the purification system includes the filter module being sequentially communicated
Block, adsorption module and catalytic module are provided with adsorbent material in the adsorption module, above-mentioned urge are provided in the catalytic module
Change system, organic exhaust gas to be clean are successively passed through in the filtering module, adsorption module and catalytic module respectively to described
Organic exhaust gas is dusted, gas absorption and catalytic degradation reaction.
Preferably, one of offgas outlet of the catalytic module is connected to the gas inlet of the adsorption module, with
It resulting at least partly tail gas will be back in the adsorption module after the catalytic degradation reaction.When exhaust temperature deficiency
With provide adsorbent material desorption heat so that desorption process completely by extra heat source heat supply when, this link can be omitted.
Catalyst system provided by the invention improves on existing catalytic way, by dark catalysis material and light source
Two parts composition, uses light source to be radiated at the enough heats of the dark spontaneous generation in catalysis material surface to cause heat catalysis, and
And when the organic point of concentration flowed into catalyst system increases and catalytic bed temperature is sufficiently high, or even catalysis combustion can be caused
It burns, so that catalytic bed spontaneous combustion, it is no longer necessary to outside provides energy, can not only improve the purification efficiency of organic exhaust gas, and
It can also realize energy-efficient.
Detailed description of the invention
Exemplary embodiment of the invention is described in more detail in conjunction with the accompanying drawings, it is of the invention above-mentioned and its
Its purpose, feature and advantage will be apparent, wherein in exemplary embodiment of the invention, identical reference label
Typically represent same parts.
Fig. 1 is a kind of concrete structure schematic diagram of purification system provided by the invention.
Fig. 2 is another concrete structure schematic diagram of purification system provided by the invention.
Description of symbols
1- filtering module；2- adsorption module；3- catalytic module
Specific embodiment
The embodiment of the present invention is described below in detail, the examples of the embodiments are intended to be used to explain the present invention, and cannot
It is interpreted as limitation of the present invention.In the examples where no specific technique or condition is specified, described according to the literature in the art
Technology or conditions or carried out according to product description.Reagents or instruments used without specified manufacturer is that can lead to
Cross the conventional products of commercially available acquisition.
Embodiment 1
The embodiment is for illustrating catalyst system provided by the invention and its application and purification method and purification system.
As shown in Figure 1, the purification system that the present embodiment uses includes the filtering module 1 being sequentially communicated, adsorption module 2 and urges
Change module 3, the filtering module 1 is dry filter, and the adsorption module 2 is the suction for being filled with adsorbent material (active carbon)
Attached column is provided with catalyst bed (Pt/MnO in the catalytic module 32, wherein Pt is supported on MnO2Upper and Pt and MnO2's
Weight ratio is 1:100) and full spectrum sunlight and solar irradiation to be mapped to the light intensity of catalyst bed be 1000mW/cm2, described
One of offgas outlet of catalytic module 3 is connected to the entrance of the adsorption module 2.When using the purification system to organic waste
When gas is purified, the specific steps are as follows:
(1) organic exhaust gas to be clean (dedusting: is originated from tire production workshop, wherein organic point of concentration is 2000mg/
m3) with 4000m3The flow velocity of/h be introduced into dry filter by air-introduced machine be filtered with remove particulate matter therein and viscosity at
Point, and extend the adsorption cycle and service life of adsorbent material in adsorption module 2.
(2) gas absorption: using the adsorbent material in adsorption module 2 to the organic matter in the organic exhaust gas after dedusting
It is adsorbed, wherein the temperature of absorption is 40 DEG C, and the volume space velocity of absorption is 40000h-1。
(3) catalytic degradation reaction: so that the organic exhaust gas after gas absorption passes through the catalyst bed in catalytic module 3
Layer, while opening light source to carry out photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction to organic exhaust gas,
Wherein, the volume space velocity of organic exhaust gas is 40000h-1.The result shows that purification efficiency is greater than 90%.
(4) desorbing gas: will after catalytic degradation reaction a part of (2/3vol%) direct emission of resulting tail gas or
Flow into other processes, remainder is back in gas absorption step, using waste heat from tail gas make the adsorbent material desorption of saturation with
Realize the regeneration of adsorbent material, and the organic matter being concentrated being desorbed is introduced into the catalytic module 3 and carries out institute again
State catalytic degradation reaction.
Embodiment 2
The embodiment is for illustrating catalyst system provided by the invention and its application and purification method and purification system.
As shown in Figure 1, the purification system that the present embodiment uses includes the filtering module 1 being sequentially communicated, adsorption module 2 and urges
Change module 3, the filtering module 1 is dry filter, and the adsorption module 2 is to be filled with adsorbent material (zeolite molecular sieve)
Adsorption column is provided with catalyst bed (Pt/Al in the catalytic module 32O3, wherein Pt is supported on Al2O3Upper and Pt and Al2O3
Weight ratio be 1:20) and infrared light supply and the infrared light supply to be irradiated to the light intensity of catalyst bed be 500W/cm2, described to urge
The one of offgas outlet for changing module 3 is connected to the gas inlet of the adsorption module 2.When using the purification system to organic
When exhaust gas is purified, the specific steps are as follows:
(1) organic exhaust gas to be clean (dedusting: is originated from painting workshop, wherein organic point of concentration is 1000mg/m3)
With 5000m3The flow velocity of/h is introduced into dry filter by air-introduced machine to be filtered to remove particulate matter and viscosity component therein,
And extend the adsorption cycle and service life of adsorbent material in adsorption module 2.
(2) gas absorption: using the adsorbent material in adsorption module 2 to the organic matter in the organic exhaust gas after dedusting
It is adsorbed, wherein the temperature of absorption is 40 DEG C, and the volume space velocity of absorption is 10000h-1。
(3) catalytic degradation reaction: so that the organic exhaust gas after gas absorption passes through the catalyst bed in catalytic module 3
Layer, while infrared light supply is opened to carry out photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation instead to organic exhaust gas
It answers, wherein the volume space velocity of organic exhaust gas is 10000h-1.The result shows that purification efficiency is greater than 90%.
(4) it desorbing gas: will directly be arranged resulting partial tail gas a part of (1/2vol%) after catalytic degradation reaction
Put or flow into other processes, remainder is back in gas absorption step, using high temperature make saturation adsorbent material desorption with
Realize the regeneration of adsorbent material, and the organic matter being concentrated being desorbed is introduced into the catalytic module 3 and carries out institute again
State catalytic degradation reaction.
Embodiment 3
The embodiment is for illustrating catalyst system provided by the invention and its application and purification method and purification system.
As shown in Figure 1, the purification system that the present embodiment uses includes the filtering module 1 being sequentially communicated, adsorption module 2 and urges
Change module 3, the filtering module 1 is dry filter, and the adsorption module 2 is to be filled with adsorbent material (activated alumina)
Adsorption column is provided with catalyst bed (Pt/CNT, wherein Pt is supported on CNT and Pt and CNT in the catalytic module 3
Weight ratio is 1:50) and full spectrum sunlight and solar irradiation to be mapped to the light intensity of catalyst bed be 800W/cm2, the catalysis
One of offgas outlet of module 3 is connected to the gas inlet of the adsorption module 2.When using the purification system to organic waste
When gas is purified, the specific steps are as follows:
(1) organic exhaust gas to be clean (dedusting: is originated from tire production workshop, wherein organic point of concentration is 2000mg/
m3) with 5000m3The flow velocity of/h be introduced into dry filter by air-introduced machine be filtered with remove particulate matter therein and viscosity at
Point, and extend the adsorption cycle and service life of adsorbent material in adsorption module 2.
(2) gas absorption: using the adsorbent material in adsorption module 2 to the organic matter in the organic exhaust gas after dedusting
It is adsorbed, wherein the temperature of absorption is 50 DEG C, and the volume space velocity of absorption is 20000h-1。
(3) catalytic degradation reaction: so that the organic exhaust gas after gas absorption passes through the catalyst bed in catalytic module 3
Layer, while opening light source to carry out photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction to organic exhaust gas,
Wherein, the volume space velocity of organic exhaust gas is 20000h-1.The result shows that purification efficiency is greater than 90%.
(4) desorbing gas: will after catalytic degradation reaction a part of (2/3vol%) direct emission of resulting tail gas or
Other processes are flowed into, remainder is back in gas absorption step, while carrying out heating to adsorption module keeps adsorbent material de-
Be accompanied by realize adsorbent material regeneration, and the organic matter being concentrated being desorbed be introduced into the catalytic module 3 again into
The row catalytic degradation reaction.
Embodiment 4
The embodiment is for illustrating catalyst system provided by the invention and its application and purification method and purification system.
As shown in Fig. 2, the purification system that the present embodiment uses includes the filtering module 1 being sequentially communicated, adsorption module 2 and urges
Change module 3, the filtering module 1 is dry filter, and the adsorption module 2 is to be filled with adsorbent material (absorption resin)
Adsorption column is provided with catalyst bed (MnO in the catalytic module 32) and infrared light supply and the infrared light supply be irradiated to catalysis
The light intensity of agent bed is 800W/cm2.When being purified using the purification system to organic exhaust gas, the specific steps are as follows:
(1) organic exhaust gas to be clean (dedusting: is originated from tire production workshop, wherein organic point of concentration is 300mg/
m3) with 1000m3The flow velocity of/h be introduced into dry filter by air-introduced machine be filtered with remove particulate matter therein and viscosity at
Point, and extend the adsorption cycle and service life of adsorbent material in adsorption module 2.
(2) gas absorption: using the adsorbent material in adsorption module 2 to the organic matter in the organic exhaust gas after dedusting
It is adsorbed, wherein the temperature of absorption is 50 DEG C, and the volume space velocity of absorption is 10000h-1。
(3) catalytic degradation reaction: so that the organic exhaust gas after gas absorption passes through the catalyst bed in catalytic module 3
Layer, while opening light source to carry out photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction to organic exhaust gas,
Wherein, the volume space velocity of organic exhaust gas is 10000h-1.The result shows that purification efficiency is greater than 90%.
(4) desorbing gas: will after catalytic degradation reaction resulting tail gas direct emission or flow into other processes, to suction
Attached module carries out the organic matter being concentrated that heating is desorbed adsorbent material to realize the regeneration of adsorbent material, and is desorbed
It is introduced into the catalytic module 3 and carries out the catalytic degradation reaction again.
Embodiment 5
The embodiment is for illustrating catalyst system provided by the invention and its application and purification method and purification system.
Organic exhaust gas is purified according to the method for embodiment 1, unlike, it does not include that dedusting, gas absorption are gentle
The step of body is desorbed, purification efficiency are greater than 80%.
Comparative example 1
The comparative example is used to illustrate the catalyst system of reference and its applies and purification method and purification system.
Organic exhaust gas is purified according to the method for embodiment 4, unlike, it only include dark catalysis in catalyst system
Material is without including light source, and purification efficiency is less than 20%.
Comparative example 2
The comparative example is used to illustrate the catalyst system of reference and its purification method of application and organic exhaust gas.
Organic exhaust gas is purified according to the method for embodiment 4, unlike, only it is including light intensity in catalyst system
800mW/cm2Infrared light supply without including dark catalysis material, purification efficiency is less than 10%.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of catalyst system, which is characterized in that the catalyst system is made of dark catalysis material and light source two parts, described
Light source, which is radiated on dark catalysis material, generates enough heats to cause heat catalysis or photic photo-thermal concerted catalysis reaction.
2. catalyst system according to claim 1, wherein
It is described dark color catalysis material in active material in transition metal oxide, carbon material and precious metal material at least
It is a kind of；
Preferably, the active material in the dark catalysis material is transition metal oxide, carbon material and transiting metal oxidation
The mixture or noble metal and transition metal oxide of object and/or precious metal material and/or the mixture of carbon material；
Preferably, the transition metal oxide is selected from titanium oxide, barium oxide, chromated oxide, Mn oxide, iron oxidation
At least one of object, cobalt/cobalt oxide, nickel oxide, Cu oxide, zinc oxide and tungsten oxide；
Preferably, the carbon material in fullerene, carbon fiber, carbon nanotube, carbon aerogels, graphene and active carbon extremely
Few one kind；
Preferably, the precious metal material is selected from least one of gold, silver, ruthenium, rhodium, palladium, osmium, iridium and platinum.
3. catalyst system according to claim 1, wherein the light source is selected from ultraviolet light, visible light, infrared light and full light
Compose at least one of sunlight；Preferably, the light intensity of the light source is 100-1500mW/cm2。
4. application of the catalyst system in organic waste-gas purification described in any one of claim 1-3.
5. a kind of purification method of organic exhaust gas, which is characterized in that this method includes wanting organic exhaust gas to be clean in right
It asks and carries out photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis in the presence of catalyst system described in any one of 1-3
Degradation reaction.
6. purification method according to claim 5, wherein method includes the following steps:
Dedusting: organic exhaust gas to be clean is filtered to remove particulate matter therein and viscosity component；
Gas absorption: Adsorption Concentration is carried out to the organic matter in the organic exhaust gas after dedusting using adsorbent material；
Catalytic degradation reaction: by the organic exhaust gas after being concentrated through gas absorption described in any one of claim 1-3
Photic thermocatalytic degradation reaction or photic photo-thermal concerted catalysis degradation reaction are carried out in catalyst system；
Optionally, this method further includes the desorbing gas step after the catalytic degradation reaction: will be through the catalytic degradation
Resulting at least partly tail gas is back in the gas absorption step after reaction, and the adsorption material of saturation is made using waste heat from tail gas
Material desorption is to realize the regeneration of adsorbent material, and the organic matter being concentrated being desorbed is introduced into the catalyst system again
Carry out the catalytic degradation reaction；
Optionally, when the waste heat from tail gas is unable to reach the desorption temperature of adsorbent material, make its desorption using outside heating.
7. purification method according to claim 5 or 6, wherein the condition of the catalytic degradation reaction includes: the catalysis
The volume space velocity of organic exhaust gas is 10000-40000h during degradation reaction-1。
8. purification method according to claim 6, wherein
The adsorbent material is selected from least one of active carbon, zeolite molecular sieve, activated alumina, silica gel and resin；
Preferably, the condition of the Adsorption Concentration includes air inlet exhaust temperature≤60 DEG C, and the volume space velocity of organic exhaust gas is
10000-40000h-1, concentration≤2000mg/m of organic matter in organic exhaust gas3。
9. a kind of purification system, which is characterized in that the purification system includes filtering module (1), the adsorption module being sequentially communicated
(2) and catalytic module (3) adsorbent material, is provided in the adsorption module (2), setting is had the right in the catalytic module (3)
It is required that catalyst system described in any one of 1-3, organic exhaust gas to be clean is successively passed through the filtering module (1), absorption
In module (2) and catalytic module (3) to be dusted respectively to the organic exhaust gas, gas absorption and catalytic degradation reaction.
10. purification system according to claim 9, wherein one of offgas outlet of the catalytic module (3) and institute
The gas inlet connection of adsorption module (2) is stated, resulting at least partly tail gas will be returned after the catalytic degradation reaction
To in the adsorption module (2).
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| CN112973674A (en) * | 2021-02-25 | 2021-06-18 | 华东理工大学 | Preparation method and application of inverse opal structure photo-thermal catalyst TixMn1-xOy |
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| CN117547970B (en) * | 2024-01-12 | 2024-04-02 | 广东海洋大学 | Photo-thermal catalysis ship exhaust gas treatment method |
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