CN209512054U - A kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst - Google Patents
A kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst Download PDFInfo
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Abstract
The utility model discloses a kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst, including filter, catalytic ceramics film module, vacuum pump, two differential pressure controllers, the tube side inside and outside wall of the catalytic ceramics film module is coated with ultra-thin two-dimension zeolite catalysis oxidant layer, the tube-side inlet and shell side inlet that the outlet of the filter is separately connected catalytic ceramics film module by setting valvular pipeline, the tube side outlet of the catalytic ceramics film module and shell-side outlet are by setting valvular pipeline connection atmosphere, the entrance of the vacuum pump is separately connected catalytic ceramics film module tube-side inlet and shell side inlet by valve, the outlet of the vacuum pump connects the entrance of the filter, two differential pressure controller is respectively used to detect between the catalytic ceramics film module tube side entrance, pressure difference between shell side entrance.The utility model high combustion efficiency, low energy consumption, without secondary pollution for environmental protection, can recycle, realize the catalyticing combustion process of gaseous-phase organic pollutant.
Description
Technical field
The utility model relates to a kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst, belongs to exhaust gas
Field of purification.
Background technique
With the fast development of China's industrial economy, while bringing huge economic interests for society, also it is discharged
A large amount of harmful exhausts.Volatile organic compounds (VOCs) is one of air major pollutants, including hydro carbons, halogenated hydrocarbons, fragrance
Hydrocarbon, polycyclic aromatic hydrocarbons (PAH) etc., mainly from petrochemical industry, pharmacy, printing spray painting, motor vehicle, etc. industries discharge exhaust gas.Such has
Machine object exhaust gas can damage human health, the irritating effect of eye, nose, respiratory tract to people, to the internal organ such as the heart, lung, liver and nerveous system
System generates adverse effect, or even causes acute or chronic poisoning.And it can be reacted with the NO2 in atmosphere and generate O3, keep low latitude big
O in gas3Concentration increases, and destroys ecological environment.Therefore, VOCs waste gas pollution control and treatment has been extremely urgent.
Currently, the traditional VOCs processing method in China has absorption method, condensation method and direct combustion method etc., but they have easy production
Raw secondary pollution, energy consumption is high, vulnerable to organic exhaust gas concentration and temperature limiting the shortcomings that, and Production by Catalytic Combustion Process can reach better place
Manage effect.Catalysis burning is typical gas-solid catalysis, and its essence is active oxygens to participate in deep oxidation effect.It is fired in catalysis
During burning, the effect of catalyst is the activation energy for reducing reaction, while reactant molecule being made to be enriched in catalyst surface, to mention
High reaction rate.It can make organic exhaust gas that flameless combustion and oxygenolysis occur under lower initiation temperature by catalyst
CO2 and H2O, while releasing a large amount of heat.Organic waste gas catalytic combustion is compared with directly burning, the low, energy consumption with initiation temperature
Low distinguishing feature；The purifying rate of Treatment of Organic Waste Gas Containing Cyclohexanone is high simultaneously, generally all 95% or more；And due to it
Ignition temperature is low, can largely reduce the generation of NOx；Production by Catalytic Combustion Process almost can handle all hydro carbons organic exhaust gas, be applicable in
Range is wide.
There may be carbon distributions in the catalyticing combustion process of gaseous-phase organic pollutant, by the pretreated organic exhaust gas of filter
May possibly still be present a small amount of dust, they are attached to catalyst surface in catalyticing combustion process, covering catalyst active site,
It will affect the catalytic action of catalyst.And gaseous-phase organic pollutant lower for concentration, since its concentration is lower, it is difficult to tie up
Hold sustained combustion.Therefore, it is necessary to develop it is a kind of can overcome problem above, the organic dirt of the gas phase based on two-dimentional zeolite catalyst
Contaminate object catalytic combustion method and its device.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts and deficiency provide a kind of simple process, purification effect
The gaseous-phase organic pollutant catalytic combustion system based on two-dimentional zeolite catalyst that rate is high, catalyst can make full use of repeatedly.
The utility model is achieved through the following technical solutions:
A kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst, including filter, tube shell type structure
Catalytic ceramics film module, vacuum pump, two differential pressure controllers, the tube side inside and outside wall of the catalytic ceramics film module is coated with ultra-thin
Two-dimentional zeolite catalysis oxidant layer, the outlet of the filter are separately connected the catalytic ceramics film by being equipped with the pipeline of several valves
The tube-side inlet and shell side inlet of module, the tube side outlet of the catalytic ceramics film module and shell-side outlet are valvular by setting
The entrance of pipeline connection atmosphere, the vacuum pump is separately connected the catalytic ceramics film module tube-side inlet and shell side by valve
Entrance, the outlet of the vacuum pump connect the entrance of the filter, and two differential pressure controller is respectively used to urge described in detection
Change between ceramic membrane module tube side entrance, the pressure difference between shell side entrance, for monitoring the blocking of catalytic ceramics film module
Degree.
Further, the catalytic ceramics film module includes being provided between tube side entrance and the pottery of shell side entrance
Porcelain film cabinet, if being set side by side in the ceramic membrane cabinet in main pipe and being coated with ultra-thin two-dimension zeolite catalysis oxidant layer outside pipe
Ceramic-film tube, the entrance of each ceramic-film tube are connected with the ceramic membrane cabinet tube-side inlet, the outlet of each ceramic-film tube and institute
The outlet of ceramic membrane cabinet tube side is stated to be connected.
Further, the calcination for removing the carbon distribution adhered on catalyst is provided with below the catalytic ceramics film module
Device.
Further, the outlet of the filter is by being in series with pottery described in the piping connection of third valve, the 5th valve
The shell side inlet of porcelain film cabinet.
Further, the outlet of the filter is by being equipped with catalytic ceramics film module described in the piping connection of the first valve
Tube-side inlet.
Further, between the entrance of the vacuum pump and the tube-side inlet and shell side inlet of the catalytic ceramics film module
Pipeline on be respectively arranged with the 6th valve, the 7th valve.
The utility model has the advantage that compared with prior art
(1) flue gas is first passed through ceramic-film tube inside pipe wall and carries out catalysis burning, judges catalytic ceramics by differential pressure controller
The clogged with soot degree of film module when pressure difference is more than certain value, then changes the airintake direction of catalytic ceramics film module, makes flue gas
Reverse blow ceramic-film tube pipe outer wall carries out catalysis burning, and the catalyst inside and outside ceramic-film tube pipe is all fully used, and increases
The treating capacity for having added the flue gas containing organic pollutant improves catalysis efficiency of combustion, reduces the cost of exhaust-gas treatment；
(2) O2、N2、CO2、H2The major part gas-permeable such as O is gone out, and is left the organic pollutant of high concentration, can be maintained
Catalysis burning, catalyticing combustion process do not need additionally to heat again；
(3) ultra-thin two-dimension zeolite catalyst can reduce the activation energy of organic exhaust gas burning, to reduce initiation temperature, reduce
Energy consumption, save the cost.In addition, general directly burning organic exhaust gas temperature all can be also easy to produce nitrogen oxides at 600 DEG C or more, and
Catalysis burning is the burning of not open fire, generally below 350 DEG C, does not have the generation of nitrogen oxides, therefore safer and ring
It protects；
(4) firing device is provided below in ceramic film module, and for removing the carbon distribution adhered on catalyst, catalyst restores
After activity, device can work on.
In summary, the utility model have means are simple and easy to do, purification efficiency is high, environment protecting is good, can recycle,
High combustion efficiency, environment protecting are good, low energy consumption, processing without secondary pollution, being widely applicable for gaseous-phase organic pollutant etc.
Advantage, realizes the catalyticing combustion process of gaseous-phase organic pollutant, and application prospect is wider.
Detailed description of the invention
Fig. 1 is gaseous-phase organic pollutant catalytic combustion system structural representation of the utility model based on two-dimentional zeolite catalyst
Figure.
Fig. 2 is the schematic diagram of catalytic ceramics membrane tube shown in Fig. 1.The inside and outside painting for having ultra-thin two-dimension zeolite catalyst is managed in figure
Layer.
In figure: the first valve of 1-；The second valve of 2-；3- third valve；The 4th valve of 4-；The 5th valve of 5-；The 6th valve of 6-
Door；The 7th valve of 7-；8- catalytic ceramics film module；9- vacuum pump；10- filter；11- firing device；The control of the first differential pressure of 12-
Device；13- ceramic membrane cabinet；14- pipe orifice；15- pipe outer wall；16- ceramic-film tube；The second differential pressure controller of 17-.
Specific embodiment
The utility model is more specifically described in detail combined with specific embodiments below.
Embodiment one
As shown in Figure 1, a kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst, including filter
10, the catalytic ceramics film module 8 of tube shell type structure, vacuum pump 9, the first differential pressure controller 12, the second differential pressure controller 17, it is described
The tube side inside and outside wall of catalytic ceramics film module 8 is coated with ultra-thin two-dimension zeolite catalysis oxidant layer；The outlet of the filter 10 passes through
It is in series with the shell side inlet of ceramic membrane cabinet 13 described in the piping connection of third valve 3, the 5th valve 5；The filter 10
Tube-side inlet of the outlet also by being equipped with catalytic ceramics film module 8 described in the piping connection of the first valve 1.The catalytic ceramics film
The tube side outlet of module 8 and shell-side outlet are described respectively by being equipped with the pipeline connection atmosphere of the second valve 2 and the 4th valve 4
The entrance of vacuum pump 9 connects 8 tube side of catalytic ceramics film module by being equipped with the pipeline of the 6th valve 6, the 7th valve 7 respectively
Entrance and shell side inlet, the entrance of the outlet connection filter 10 of the vacuum pump 9, first differential pressure controller 12,
Second differential pressure controller 17 is respectively used to detect between the 8 tube side entrance of catalytic ceramics film module, between shell side entrance
Pressure difference.
Specifically, the catalytic ceramics film module 8 includes being provided between tube side entrance and shell side entrance
Ceramic membrane cabinet 13, if being set side by side in main pipe 14 in the ceramic membrane cabinet 13 is coated with ultra-thin two-dimension zeolite with pipe outer 15
The ceramic-film tube 16 of catalyst layer, the entrance of each ceramic-film tube 16 are connected with 13 tube-side inlet of ceramic membrane cabinet, each to make pottery
The outlet of porcelain membrane tube 16 is connected with 13 tube side of ceramic membrane cabinet outlet.
In addition, being provided with the calcination dress for removing the carbon distribution adhered on catalyst below the catalytic ceramics film module 8
Set 11.
As described in Figure 2, ultra-thin two-dimension is coated in the pipe orifice 14 of the ceramic-film tube 16 of the present embodiment and pipe outer wall 15
Zeolite catalysis oxidant layer, the ultra-thin two-dimension zeolite catalysis oxidant layer can carry out catalysis combustion with filtered high concentration organic contaminant
It burns.
Embodiment two
A kind of gas phase catalytic organism combustion method based on described device, comprising steps of
S1, the first valve 1 and the second valve 2 for connecting 8 tube-side inlet of catalytic ceramics film module and outlet are opened,
Remaining valve is closed；
S2, by the flue gas containing organic pollutant through ventilation pipe input filter 10, after completing dedusting in filter 10
Flue gas along the ceramic-film tube 16 that ventilation pipe enters the catalytic ceramics film module 8 when, the O in flue gas2、N2、CO2、H2O
It is permeable through ceramic-film tube 16, leave high concentration organic contaminant with it is ultra-thin on 14 wall of pipe orifice of the ceramic-film tube 16
Two-dimentional zeolite catalysis oxidant layer contact carries out catalysis burning, and the product of generation exports row through the tube side of the catalytic ceramics film module 8
Out；
S3, the pressure difference between differential pressure controller 12 detects that 8 tube-side inlet of catalytic ceramics film module and tube side export
When more than given threshold, dredging operation is carried out by each ceramic-film tube 16 of the vacuum pump 9 to the catalytic ceramics film module 8:
First valve 1 and the second valve in 8 tube-side inlet of catalytic ceramics film module and tube side exit are connected to described in closing
Door 2 opens the 6th valve 6 being connected between the entrance of the vacuum pump 9 and the tube-side inlet of the catalytic ceramics film module 8
It is vacuumized, after the completion, closes vacuum pump 9 and the 6th valve 6；
S4, the 5th valve 5, the third valve for connecting 8 shell side inlet of catalytic ceramics film module and shell-side outlet are opened
3, the 4th valve 4, the flue gas after dedusting enter (the i.e. described ceramic membrane in 8 shell side of catalytic ceramics film module along ventilation pipe
In cabinet 13) when, the O in the flue gas2、N2、CO2、H2O is permeable through the ceramic membrane cabinet 13, and it is organic to leave high concentration
Pollutant contacts with the ultra-thin two-dimension zeolite catalysis oxidant layer in the pipe outer wall 15 of the ceramic-film tube 16 and carries out catalysis burning, generates
Product through the catalytic ceramics film module 8 shell-side outlet be discharged；
S5, detect that the pressure difference between 8 shell side inlet of catalytic ceramics film module and shell-side outlet is super when differential pressure controller
When crossing given threshold, the catalyst of the 8 tube side inside and outside wall of catalytic ceramics film module is regenerated:
Stopping is passed through the flue gas containing organic pollutant, and opening is connected to 8 tube-side inlet of catalytic ceramics film module and pipe
First valve 1 and the second valve 2 in journey exit and the ceramic-film tube 16 for being passed through fresh air to the catalytic ceramics film module 8
In ceramic membrane cabinet 13, while starting firing device 11 and certain time is heated to the catalytic ceramics film module 8, makes to be attached to
The carbon distribution and dust after-flame of 16 inside and outside wall of ceramic-film tube simultaneously blow out the catalytic ceramics film module 8, restore urging for catalyst
Change activity；
S6, after catalyst is completed to regenerate, stopping is passed through fresh air, opens and connects 8 shell of catalytic ceramics film module
The 5th valve 5, third valve 3, the 4th valve 4 of journey entrance and shell-side outlet, continue to be passed through the flue gas containing organic pollutant into
Row catalysis burning, the product of generation are discharged through the shell-side outlet of the catalytic ceramics film module 8；
S7, detect that the pressure difference between 8 shell side inlet of catalytic ceramics film module and shell-side outlet is super when differential pressure controller
When crossing given threshold, dredging operation is carried out by shell side of the vacuum pump 9 to the catalytic ceramics film module 8:
Close the shell side inlet for being connected to the catalytic ceramics film module 8 and the 5th valve 5, third valve at shell-side outlet
The 3, the 4th valve 4 of door opens the 7th valve being located between 8 shell side inlet of entrance and catalytic ceramics film module of the vacuum pump 9
Door 7 is vacuumized, and after the completion, closes vacuum pump 9, the 7th valve 7；
S8, change ventilation direction, step more than repetition can be realized through the catalysis burning organic dirt of continuous processing gas phase
Contaminate the process of object.
In summary, the utility model is turned by adjusting the valve and vacuum pump 9 arranged on pipeline, the flowing of control gas
Flexible gas direction all makes full use of so that ceramic-film tube 16 be made to manage inside and outside catalyst；The catalytic ceramics film module 8 is set below
It is equipped with firing device 11, for restoring the catalytic activity except catalyst.
The utility model technological means is simple and easy to do, purification efficiency is high, environment protecting is good, the advantages of can recycling, can
It is widely applicable for the processing of gaseous-phase organic pollutant, application prospect is wider.
The embodiments of the present invention is simultaneously not restricted to the described embodiments, other are any without departing from the utility model
Made changes, modifications, substitutions, combinations, simplifications under spiritual essence and principle, should be equivalent substitute mode, are included in
Within the protection scope of the utility model.
Claims (6)
1. a kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst, it is characterised in that: including filter
(10), the catalytic ceramics film module (8) of tube shell type structure, vacuum pump (9), two differential pressure controllers, the catalytic ceramics film module
(8) tube side inside and outside wall is coated with ultra-thin two-dimension zeolite catalysis oxidant layer, the filter (10) if outlet pass through be equipped with dryvalve
The pipeline of door is separately connected the tube-side inlet and shell side inlet of the catalytic ceramics film module (8), the catalytic ceramics film module
(8) tube side outlet passes through valve by setting valvular pipeline connection atmosphere, the entrance of the vacuum pump (9) with shell-side outlet
It is separately connected catalytic ceramics film module (8) tube-side inlet and shell side inlet, the outlet of the vacuum pump (9) connects the mistake
The entrance of filter (10), two differential pressure controller (12) are respectively used to detect catalytic ceramics film module (8) the tube side discrepancy
Mouthful between, the pressure difference between shell side entrance.
2. the gas phase catalytic organism burner according to claim 1 based on two-dimentional zeolite catalyst, feature exist
In: the catalytic ceramics film module (8) includes being provided between tube side entrance and the ceramic membrane cabinet of shell side entrance
(13), the ceramic membrane cabinet (13) if in be set side by side in main pipe (14) and pipe and be coated with ultra-thin two-dimension zeolite outside (15) and urge
The ceramic-film tube (16) of agent layer, the entrance of each ceramic-film tube (16) are connected with ceramic membrane cabinet (13) tube-side inlet,
The outlet of each ceramic-film tube (16) is connected with ceramic membrane cabinet (13) tube side outlet.
3. the gas phase catalytic organism burner according to claim 1 based on two-dimentional zeolite catalyst, feature exist
In: the firing device (11) for removing the carbon distribution adhered on catalyst is provided with below the catalytic ceramics film module (8).
4. the gas phase catalytic organism burner according to claim 1 based on two-dimentional zeolite catalyst, feature exist
In: the outlet of the filter (10) is by being in series with ceramic membrane described in the piping connection of third valve (3), the 5th valve (5)
The shell side inlet of cabinet (13).
5. the gas phase catalytic organism burner according to claim 1 based on two-dimentional zeolite catalyst, feature exist
In: the pipe that the outlet of the filter (10) passes through catalytic ceramics film module (8) described in the piping connection equipped with the first valve (1)
Journey entrance.
6. the gas phase catalytic organism burner according to claim 1 based on two-dimentional zeolite catalyst, feature exist
In: on the pipeline between the entrance of the vacuum pump (9) and the tube-side inlet and shell side inlet of the catalytic ceramics film module (8)
It is respectively arranged with the 6th valve (6), the 7th valve (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821523320.5U CN209512054U (en) | 2018-09-18 | 2018-09-18 | A kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst |
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| CN201821523320.5U CN209512054U (en) | 2018-09-18 | 2018-09-18 | A kind of gas phase catalytic organism burner based on two-dimentional zeolite catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185902A (en) * | 2018-09-18 | 2019-01-11 | 华南理工大学 | Gas phase catalytic organism combustion method and device based on two-dimentional zeolite catalyst |
-
2018
- 2018-09-18 CN CN201821523320.5U patent/CN209512054U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185902A (en) * | 2018-09-18 | 2019-01-11 | 华南理工大学 | Gas phase catalytic organism combustion method and device based on two-dimentional zeolite catalyst |
| CN109185902B (en) * | 2018-09-18 | 2024-02-02 | 华南理工大学 | Gas-phase organic matter catalytic combustion method and device based on two-dimensional zeolite catalyst |
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