CN207361785U - A kind of methane self-heating dry reforming reaction unit - Google Patents
A kind of methane self-heating dry reforming reaction unit Download PDFInfo
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- CN207361785U CN207361785U CN201721269538.8U CN201721269538U CN207361785U CN 207361785 U CN207361785 U CN 207361785U CN 201721269538 U CN201721269538 U CN 201721269538U CN 207361785 U CN207361785 U CN 207361785U
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- porous media
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- gas vent
- reforming reaction
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Abstract
The utility model discloses a kind of methane self-heating dry reforming reaction unit, including crust of the device, gas inlet pipe, gas outlet tube, gas vent sleeve, current equalizer and more than two porous media reactors, more than two porous media reactors form closed cavity, the cavity is arranged in crust of the device, and with crust of the device spacing distance, in the reaction gas inlet pipe insertion gas vent sleeve, gas vent sleeve is connected with gas outlet tube, the current equalizer is located in cavity, and the current equalizer and gas vent sleeve intercommunication, the gas vent sleeve is located at the center of cavity.The utility model guarantee methane self-heating dry reforming reaction continues surely to carry out.
Description
Technical field
It the utility model is related to gas reaction device, and in particular to a kind of methane self-heating dry reforming reaction unit.
Background technology
Methane carbon dioxide reformation (also referred to as methane dry reforming) preparing synthetic gas technology utilizes the efficient of biogas, with
And the discharge of greenhouse gases is reduced, suffer from very important meaning.But due to meeting shape in methane dry reforming reaction process
Into a large amount of carbon deposits, so as to influence activity and the service life of catalyst, thus its commercial applications is limited.
Utility model content
In order to overcome shortcoming and deficiency existing in the prior art, the utility model provides a kind of methane self-heating dry reforming reaction
Device, the utility model can utilize residual heat of reaction preheating reacting gas, while improve the reaction unit of reaction temperature, so as to protect
That demonstrate,proves the reaction of methane self-heating dry reforming stablizes progress.
The utility model adopts the following technical solution：
A kind of methane self-heating dry reforming reaction unit, including crust of the device, gas inlet pipe, gas outlet tube, gas go out
Port sleeve, current equalizer and more than two porous media reactors, more than two porous media reactors form closed
Cavity, the cavity are arranged in crust of the device, and are inserted into gas vent set with crust of the device spacing distance, the gas inlet pipe
In cylinder, gas vent sleeve is connected with gas outlet tube, and the current equalizer is located in cavity, and the current equalizer and gas
Outlet bosses intercommunication, the gas vent sleeve are located at the center of cavity.
Refractory filler is further included, when porous media reactor is two, two porous media reactors are in opposite
Position, two porous media reactors form closed cavity with refractory filler, when porous media reactor is more than three
When, the porous media reactor of more than three forms closed cavity structure.
The side of the porous media reactor is trapezoidal or conical.
The gas vent sleeve is cylinder, cuboid or Elliptic Cylinder.
It is lattice-shaped that hole or wall are provided with the wall of the gas vent sleeve.
Perforate on the current equalizer.
The gas inlet pipe one end open is located at the upside of crust of the device, and the reaction through reaction unit cavity center is high
Warm area, another end opening is between cavity and crust of the device.
The beneficial effects of the utility model：
(1), can be by gas vent sleeve after the mixture of methane, carbon dioxide and air enters reaction gas inlet pipe
Interior high-temperature gas preheating, is conducive to catching fire for methane.
(2) after the mixture of methane, carbon dioxide and air enters porous media reactor wall, since porous media is anti-
The heat-transfer character of device is answered, superadiabatic high temperature can be formed wherein, is conducive to the continual and steady progress of methane self-heating dry reforming reaction.
(3) porous media reactor wall is designed to trapezoidal, can be flame front stabilization in porous media.
(4) in the central area of reaction unit, due to the radiation of around trapezoidal porous media reactor wall, in foring
Heart high-temperature region, is conducive to the continual and steady progress of methane self-heating dry reforming reaction.
(5) the exit gas sleeve in reaction unit can extend residence time of the gas in high-temperature region, be conducive to methane
The complete progress of self-heating dry reforming reaction.
(6) current equalizer is added in reaction unit, it is ensured that gas evenly distributing in reaction unit.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram that porous media reactor wall is arc in the utility model embodiment；
Fig. 3 is the structure diagram that the utility model has two medium reactors.
Embodiment
With reference to embodiment and attached drawing, the utility model is described in further detail, but the reality of the utility model
Apply mode not limited to this.
Embodiment
A kind of methane self-heating dry reforming reaction unit, including crust of the device 3, gas inlet pipe 1, gas outlet tube 2, gas
Outlet bosses 7, current equalizer 5 and more than two porous media reactors 6.
Porous media reactor more than described two forms closed cavity, as depicted in figs. 1 and 2, works as porous media
When reactor is two, two porous media reactors are in opposite position, and two porous media reactors are filled with fire resisting
The closed cavity that thing 4 is formed, as shown in figure 3, when porous media reactor is more than three, the porous media of more than three is anti-
Answer device to form closed cavity structure or the porous media reactor of more than three and form closed cavity with refractory filler,
Refractory filler plays thermal insulation function.
The medium of filling can be Porous Inert Media in porous media reactor, such as alundum (Al2O3) or urge
Agent, or catalyst are mixed with Porous Inert Media, and porous media reactor can be same porosity, or
A variety of porosity mixing.
The gas inlet pipe is inserted into gas vent sleeve, is pierced by closed cavity, the entrance of described gas inlet pipe one end
In the upside of crust of the device, the centre of the outlet of the other end on the inside of cavity and shell, the closed cavity is located at crust of the device
Interior and spaced apart with crust of the device, gas inlet pipe is arranged in gas vent sleeve, can utilize exit gas
Waste-heat reacting gas, is conducive to catching fire for reacting gas, while can also improve reaction temperature, be conducive to reaction stabilization into
OK.
The gas vent sleeve is located at the center of cavity, and gas vent sleeve can extend reacting gas in high temperature
The residence time in area, is conducive to react completely, and the gas outlet tube and gas vent sleeve connection, the current equalizer are located at
In cavity, and the current equalizer and gas vent sleeve intercommunication.Current equalizer can ensure reaction unit pressure everywhere point
Cloth is uniform, so that ensure that gas flow rate can evenly distribute on multiple porous media wall faces of reaction unit, it is described to flow
Can be with perforate on device.
The shape of the gas vent sleeve is cylinder, cuboid or Elliptic Cylinder, can be opened on sleeve wall various
The hole of shape, sleeve wall can also make lattice-shaped.
The side of the porous media reactor is trapezoidal or conical.
Reacting gas can form superadiabatic combustion in the trapezoidal porous media reactor being arranged on reaction unit wall
Burn, ignition temperature is high, is conducive to stable ignition, while the radiation heat release of surrounding porous media can be centrally formed height in reaction unit
Warm area, so as to ensure that stablizing for reaction carries out.The side of the trapezoidal porous media reactor is trapezoidal, is conducive to flame stabilization
In porous media.
The course of work of the utility model is：
The mixture of methane, carbon dioxide and air is after gas inlet pipe enters device, by gas vent sleeve
High-temperature gas preheats, and then between crust of the device and porous media reactor, further evenly distributes anti-in porous media
Ignition in device is answered, subsequently into the high-temperature region in cavity, then by gas vent sleeve, is then arranged by gas outlet tube
Go out reaction unit；During burner for low-BTU gas, methane, titanium dioxide are replaced with the mixture of low-BTU gas and air
The mixture of carbon and air；During burner for gaseous fuel lean burn, with gaseous fuel and the mixture of air
Replace the mixture of methane, carbon dioxide and air.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model and from described
The limitation of embodiment, the change made under other any Spirit Essences and principle without departing from the utility model, modify, replace
Generation, combination, simplify, and should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (7)
1. a kind of methane self-heating dry reforming reaction unit, it is characterised in that including crust of the device, gas inlet pipe, gas vent
Pipe, gas vent sleeve, current equalizer and more than two porous media reactors, more than two porous media reactor structures
Into closed cavity, which is arranged in crust of the device, and is inserted into gas with crust of the device spacing distance, the gas inlet pipe
In body outlet bosses, gas vent sleeve is connected with gas outlet tube, and the gas vent sleeve is located at the center of cavity,
The current equalizer is located in cavity, and the current equalizer and gas vent sleeve intercommunication.
2. a kind of methane self-heating dry reforming reaction unit according to claim 1, it is characterised in that further include fire resisting filling
Thing, when porous media reactor is two, two porous media reactors are in relative position, two porous media reactors
Closed cavity is formed with refractory filler, when porous media reactor is more than three, the porous media of more than three is anti-
Device is answered to form closed cavity structure.
3. a kind of methane self-heating dry reforming reaction unit according to claim 1, it is characterised in that the porous media is anti-
The side for answering device is trapezoidal or conical.
A kind of 4. methane self-heating dry reforming reaction unit according to claim 1, it is characterised in that the gas vent set
Cylinder is cylinder, cuboid or Elliptic Cylinder.
A kind of 5. methane self-heating dry reforming reaction unit according to claim 1, it is characterised in that the gas vent set
It is lattice-shaped to be provided with hole or wall on the wall of cylinder.
6. a kind of methane self-heating dry reforming reaction unit according to claim 1, it is characterised in that on the current equalizer
Perforate.
A kind of 7. methane self-heating dry reforming reaction unit according to claim 1, it is characterised in that the gas inlet pipe
One end open is located at the upside of crust of the device, and through the reaction high-temperature region of reaction unit cavity center, another end opening is positioned at sky
Between chamber and crust of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269538.8U CN207361785U (en) | 2017-09-29 | 2017-09-29 | A kind of methane self-heating dry reforming reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269538.8U CN207361785U (en) | 2017-09-29 | 2017-09-29 | A kind of methane self-heating dry reforming reaction unit |
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| Publication Number | Publication Date |
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| CN207361785U true CN207361785U (en) | 2018-05-15 |
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| CN201721269538.8U Active CN207361785U (en) | 2017-09-29 | 2017-09-29 | A kind of methane self-heating dry reforming reaction unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539950A (en) * | 2017-09-29 | 2018-01-05 | 华南理工大学 | A kind of methane self-heating dry reforming reaction unit |
| CN115057410A (en) * | 2022-06-16 | 2022-09-16 | 西安交通大学 | Conical solar methane reforming reactor based on intensified preheating |
-
2017
- 2017-09-29 CN CN201721269538.8U patent/CN207361785U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539950A (en) * | 2017-09-29 | 2018-01-05 | 华南理工大学 | A kind of methane self-heating dry reforming reaction unit |
| CN107539950B (en) * | 2017-09-29 | 2024-04-26 | 华南理工大学 | Methane self-heating dry reforming reaction device |
| CN115057410A (en) * | 2022-06-16 | 2022-09-16 | 西安交通大学 | Conical solar methane reforming reactor based on intensified preheating |
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