CN204583165U - For the parallel plate type reaction of low temperature plasma device of catalyst surface modification - Google Patents
For the parallel plate type reaction of low temperature plasma device of catalyst surface modification Download PDFInfo
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- CN204583165U CN204583165U CN201520081792.XU CN201520081792U CN204583165U CN 204583165 U CN204583165 U CN 204583165U CN 201520081792 U CN201520081792 U CN 201520081792U CN 204583165 U CN204583165 U CN 204583165U
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- field electrode
- low
- catalyst
- quartz ampoule
- block media
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- 239000003054 catalyst Substances 0.000 title claims abstract description 36
- 230000004048 modification Effects 0.000 title claims abstract description 17
- 238000012986 modification Methods 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 8
- 239000010453 quartz Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003708 ampul Substances 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a kind of parallel plate type reaction of low temperature plasma device for catalyst surface modification, it comprises high-field electrode, low-field electrode, air inlet, gas outlet, block media, quartz ampoule, ac high voltage source, high-field electrode and low-field electrode are fixed in quartz ampoule respectively by rubber stopper, block media is positioned on low-field electrode, the rubber stopper of quartz ampoule lower end is provided with air inlet and gas outlet, and ac high voltage source is connected with high-field electrode, low-field electrode respectively; When being applied to the alternating current on high-voltage motor and reaching certain voltage and frequency, gas between block media and high-field electrode breakdown thus produce low temperature plasma, catalyst is positioned over the heating region on block media, when passing into different modified atmospheres in quartz ampoule, catalyst can obtain different modified effects, and the utility model may be used for multiple catalysts and answers different surfaces modification requirement and the surface modification of carrying out catalyst.
Description
Technical field
The utility model relates to a kind of parallel plate type reaction of low temperature plasma device for catalyst surface modification, belongs to lower temperature plasma technology modified catalyst technical field.
Background technology
Low-temperature plasma modified catalyst technology, due to the modified effect of its uniqueness, more and more comes into one's own at catalyst preparing and modification field.
Dielectric barrier discharge is the method for the generation plasma comparatively commonly used, and dielectric barrier discharge is uniform and stable, easy and simple to handle and be widely used in every field.Dielectric barrier discharge can 10
4-10
6pa hyperbar and 50H
zto 1MH
zwork in wide frequency ranges.Common dielectric barrier discharge reactor has pin-board-like, line-tubular type, pipe-tubular type and plate-board-like.
Mainly concentrate on the application of low temperature plasma at present and directly process gaseous contaminant to reach the object of purification, or synergistic catalyst removes the research of gaseous contaminant, the plasma reactor separately for catalyst surface modification is relatively less.Chinese patent CN202921165U discloses the reactor that NO is removed in a kind of coaxial-type dielectric barrier discharge low-temperature plasma concerted catalysis.The advantage of this reactor is: under the prerequisite of synergistic catalyst, makes gaseous contaminant directly produce low temperature plasma simultaneously thus is more conducive to removing gaseous contaminant.Shortcoming mainly contains two: the object of (1) this reactor owing to needing long electric discharge just can reach purification gaseous contaminant, so relative energy consumption is higher; (2) this reactor is relative to parallel-plate plasma reactor according, more seldom arrive uniform discharge type, so uneven to catalyst surface modification, and high-field electrode in discharge process and catalyst exposure, this easily causes electrode to be polluted.Chinese patent CN 103545164A discloses a kind of radio frequency plasma reative cell, although this reative cell is also for material surface modifying, but the main shortcoming of this reactor is: reative cell needs could normally work under vacuo, this just needs extra vacuum equipment, additionally can increase operating cost, be structure of reactor relative complex in addition, it is more difficult to operate, and not easily realizes large-scale application.
Summary of the invention
The utility model provides a kind of reaction of low temperature plasma device for catalyst surface modification, owing to adopting parallel electrode plate discharge type, just can overcome the inhomogeneities of discharge process to greatest extent, thus make catalyst surface obtain comparatively homogeneous modification intensity, be more conducive to the surface modification of catalyst.
Reaction of low temperature plasma device for catalyst surface modification of the present utility model, it comprises high-field electrode 1, low-field electrode 2, air inlet 4, gas outlet 5, block media 6, quartz ampoule 7, ac high voltage source 8, high-field electrode 1 and low-field electrode 2 are fixed in quartz ampoule 7 respectively by rubber stopper, block media 6 is positioned on low-field electrode 2, the rubber stopper of quartz ampoule 7 lower end is provided with air inlet 4 and gas outlet 5, and ac high voltage source 8 is connected with high-field electrode 1, low-field electrode 2 respectively.
Described high-field electrode 1 and low-field electrode 2 are by battery lead plate and the cylindrical metal bar construction being fixed on electrode plate centers, battery lead plate is arranged in quartz ampoule 7, high-field electrode 1 is parallel with the battery lead plate of low-field electrode 2, and block media 6 is positioned on the battery lead plate of low-field electrode 2.
Described battery lead plate is circular.
Described block media 6 is placed with catalyst above, and catalyst all can be covered by heating region.
Described high-field electrode 1 and low-field electrode 2 are all copper.
The control (0 ~ 105mm is adjustable) of described discharging gap, can be achieved by the interelectrode distance of adjustment two; Plasma in this reactor produces at ambient pressure; By air inlet 4 and gas outlet 5, different atmosphere can be passed into control different modified atmospheres, to meet different modification requirements; Two electrodes all not with catalyst exposure, catalyst can be avoided the pollution of electrode.
Reactor described in the utility model can be implemented in same reactor changes different block medias (as sheet glass, quartz plate, corundum sheet and Al
2o
3potsherd etc.), different surface modification effects is reached to catalyst.
When being applied to the alternating current on high-field electrode and reaching certain voltage and frequency, gas between two battery lead plates breakdown thus produce low temperature plasma, catalyst is positioned on block media, and cover by whole heating region, when passing into different modified atmospheres from air inlet 4, just can produce the plasma of different atmosphere in heating region, different modified effects can be reached to catalyst.
The beneficial effects of the utility model: (1) when crest voltage be 5 ~ 7Kv, frequency be the high-frequency and high-voltage alternating current of 8 ~ 9kHz be applied on utility model high-field electrode time, just can puncture different modified atmospheres and produce the low temperature plasma of gas with various.(2) adopt parallel plate type discharge type, the uniformity of electric discharge can be improved to greatest extent, avoid shelf depreciation cross by force and cause the ablation process of plasma.(3) arbitrarily can change block media and control modified atmospheres, different modified effects is reached to catalyst.(4) this apparatus structure is simple, easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model reactor;
Fig. 2 is the utility model reactor low-temperature plasma modified catalyst using state schematic diagram;
Fig. 3 is that the utility model device is to CS
2hydrolyst before modified after effect contrast figure;
In figure: 1-high-field electrode; 2-low-field electrode; 3-rubber stopper; 4-air inlet; 5-gas outlet; 6-block media; 7-quartz ampoule; 8-ac high voltage source; 9-catalyst.
Detailed description of the invention
Below by drawings and Examples, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: this reaction of low temperature plasma device being used for catalyst surface modification comprises high-field electrode 1, low-field electrode 2, air inlet 4, gas outlet 5, block media 6, quartz ampoule 7, ac high voltage source 8, high-field electrode 1 and low-field electrode 2 are fixed in quartz ampoule 7 respectively by rubber stopper, block media 6 is positioned on low-field electrode 2, the rubber stopper 3 of quartz ampoule 7 lower end is provided with air inlet 4 and gas outlet 5, and ac high voltage source 8 is connected with high-field electrode 1, low-field electrode 2 respectively, wherein said high-field electrode 1 and low-field electrode 2 are by battery lead plate and the column copper rod formation being fixed on electrode plate centers, battery lead plate is diameter is 30mm, thickness is the circular copper electrodes plate of 2mm, battery lead plate is arranged in quartz ampoule 7, high-field electrode 1 is parallel with the battery lead plate of low-field electrode 2, block media 6 is positioned on the battery lead plate of low-field electrode 2, quartz ampoule length is 150mm, internal diameter is 53mm, thickness is 2mm, wherein block media is placed catalyst (see Fig. 1, 2), and ensure catalyst cover by heating region, discharging gap is 2mm, block media 6 is quartz plate.
With CS
2hydrolyst 9 is example, is positioned on quartz medium, and ensure catalyst can cover by heating region, pass into NH from air inlet 4
3as modified atmospheres, excessive gas is discharged from gas outlet 5, and the output crest voltage regulating power supply is 6.5KV, and frequency is 8.5kH
z.Experimental study shows: by modified catalyst its to CS
2catalyzing hydrolysis effect to be all significantly improved (see figure 3).
Claims (1)
1. the parallel plate type reaction of low temperature plasma device for catalyst surface modification, it is characterized in that: it comprises high-field electrode (1), low-field electrode (2), air inlet (4), gas outlet (5), block media (6), quartz ampoule (7), ac high voltage source (8), high-field electrode (1) and low-field electrode (2) are fixed in quartz ampoule (7) respectively by rubber stopper, block media (6) is positioned on low-field electrode (2), the rubber stopper of quartz ampoule (7) lower end is provided with air inlet (4) and gas outlet (5), ac high voltage source (8) respectively with high-field electrode (1), low-field electrode (2) connects,
Described high-field electrode (1) and low-field electrode (2) are by battery lead plate and the cylindrical metal bar construction being fixed on electrode plate centers, battery lead plate is arranged in quartz ampoule (7), high-field electrode (1) is parallel with the battery lead plate of low-field electrode (2), and block media (6) is positioned on the battery lead plate of low-field electrode (2);
Described battery lead plate is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081792.XU CN204583165U (en) | 2015-02-05 | 2015-02-05 | For the parallel plate type reaction of low temperature plasma device of catalyst surface modification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081792.XU CN204583165U (en) | 2015-02-05 | 2015-02-05 | For the parallel plate type reaction of low temperature plasma device of catalyst surface modification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204583165U true CN204583165U (en) | 2015-08-26 |
Family
ID=53919366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081792.XU Expired - Fee Related CN204583165U (en) | 2015-02-05 | 2015-02-05 | For the parallel plate type reaction of low temperature plasma device of catalyst surface modification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204583165U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979691A (en) * | 2016-05-26 | 2016-09-28 | 东南大学 | Apparatus for modifying material surface performance by using non-thermal plasma technology |
| CN110918028A (en) * | 2019-12-06 | 2020-03-27 | 大连海事大学 | Device and method for preparing metal catalyst by using plasma |
| CN111888900A (en) * | 2020-08-22 | 2020-11-06 | 山东第一医科大学(山东省医学科学院) | Carbon disulfide removal method based on low-temperature plasma reactor and coupling catalyst |
-
2015
- 2015-02-05 CN CN201520081792.XU patent/CN204583165U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979691A (en) * | 2016-05-26 | 2016-09-28 | 东南大学 | Apparatus for modifying material surface performance by using non-thermal plasma technology |
| CN110918028A (en) * | 2019-12-06 | 2020-03-27 | 大连海事大学 | Device and method for preparing metal catalyst by using plasma |
| CN111888900A (en) * | 2020-08-22 | 2020-11-06 | 山东第一医科大学(山东省医学科学院) | Carbon disulfide removal method based on low-temperature plasma reactor and coupling catalyst |
| CN111888900B (en) * | 2020-08-22 | 2022-04-15 | 山东第一医科大学(山东省医学科学院) | Carbon disulfide removal method based on low-temperature plasma reactor and coupling catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |