CN104140079A - Reactor for producing hydrogen by reforming dimethyl ether on basis of microwave irradiation - Google Patents
Reactor for producing hydrogen by reforming dimethyl ether on basis of microwave irradiation Download PDFInfo
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- CN104140079A CN104140079A CN201410382308.7A CN201410382308A CN104140079A CN 104140079 A CN104140079 A CN 104140079A CN 201410382308 A CN201410382308 A CN 201410382308A CN 104140079 A CN104140079 A CN 104140079A
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- dimethyl ether
- cavity
- inlet pipe
- microwave exposure
- reforming dimethyl
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Abstract
A reactor for producing hydrogen by reforming dimethyl ether on the basis of microwave irradiation comprises a shell. A water inlet pipe and a dimethyl ether inlet pipe are arranged at the right end of the shell. A produced gas outlet pipe is arranged at the left end of the shell. The shell is internally divided into a right cavity, a middle cavity and a left cavity through two partition plates. A mixer is arranged in the right cavity. A catalyst is arranged in the middle cavity. A waveguide tube communicated with the middle cavity is arranged on the pipe wall of the middle cavity. A magnetron is arranged in the waveguide tube. A condenser is arranged in the left cavity. An evaporator is arranged on the water inlet pipe. Due to the fact that reactants are irradiated and heated through microwaves, the inner portions and the outer portions of the substances can be heated at the same time, the system is uniformly heated, no local high-temperature areas or cold points can occur, energy efficiency of the system can be improved, and the dual effects of energy conservation and emission reduction are achieved.
Description
Technical field
The present invention relates to reactor, relate in particular to a kind of hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure.
Background technology
Energy dilemma and environmental pollution have become increasingly serious global problem.Hydrogen has the features such as burning-point is high, combustionvelocity is fast, lean flammability limit is low, limits of explosion is wide, adds hydrogen and can effectively improve combustion and emission in fuel.Hydrogen, as the reducing gas of automobile arrangement for catalytic purification, can reduce NO
xdischarge; Hydrogen can also be served as the hydrogen source of fuel cell car or fuel cell, therefore be considered to have the cleaning cart substitute energy of development prospect.
Because hydrogen density is little, easily gasify, catch fire, explode, therefore serve inconvenience at storage, transport and the use band of hydrogen.Fossil oil reformation hydrogen production has that energy density is high, energy conversion efficiency is high, easily transport, supplements and stores, and also has obvious advantage at the aspect such as economy, security, is the most real hydrogen source technology, becomes the focus of research.Dme DME (Dimethyl Ether) is a kind of renewable energy source of green, and cost is low, non-corrosiveness, almost non-toxic, has the advantage such as high energy density, low carbon content and transport and storage convenience, becomes the ideal fuels of vehicle-mounted hydrogen production.The method of hydrogen preparation by reforming dimethyl ether steam mainly comprises vapor reforming hydrogen production, three kinds of partial oxidation reformation hydrogen production and self-heating reforming hydrogen manufacturings.Partial oxidation reformation hydrogen production and self-heating reforming hydrogen manufacturing, need not outside heat supply, and shortcoming is that in product, hydrogen content is low, and reactor service temperature is high, easily in reactor, occurs that " focus " causes sintering of catalyst.Dimethyl ether-steam reforming hydrogen production reaction temperature is low, hydrogen content is high in product, and energy efficiency is high, causes extensive attention.But steam reforming reaction belongs to strong endothermic reaction, need outside that thermal source is provided, wall heating exists the technical bottlenecks such as " the cold spot temperature difference " and dynamic corresponding hysteresis.
Microwave is a kind of ubiquitous hertzian wave, and the electromagnetic energy of microwave is radiated medium inside with the form of ripple, causes the dielectric loss of medium and generate heat in medium inside.Compared with conventional heating, microwave heating does not need hot conduction and thermal convection, under the effect of microwave, the medium molecule of material reaches active state within the extremely short time, the motion of molecule and collision aggravation, greatly accelerate mass-and heat-transfer speed and speed of reaction, shortened reaction time, without lag-effect; Microwave heating can make to heat inside and outside material simultaneously, system is heated evenly, avoid the appearance of district of localized hyperthermia and " cold spot ", can improve the energy efficiency of system, there is the double effects of energy-saving and emission-reduction, caused the extensive attention of Chinese scholars, along with the continuous upgrading of the electromagnetic development of computer and computer hardware, complex electromagnetic fields is broken by the bottleneck of Computing capabilities limits gradually.But under microwave exposure, physics that steam reforming reaction contains, chemical mechanism are more complicated, to its hot physics and the meaning that transports rule theory and carry out more deep exploration and have solving energy dilemma and environmental pollution particularly important.
Summary of the invention
Object of the present invention, exactly in order to address the above problem, provides a kind of hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure, comprise housing, the right-hand member of housing is respectively equipped with water inlet pipe and dme inlet pipe, left end is provided with aerogenesis outlet pipe, in housing, becomes right chamber, intermediate cavity and left chamber by two baffle for separatings; In right chamber, be provided with mixing tank; In intermediate cavity, be provided with catalyst converter, the waveguide that is communicated with intermediate cavity is installed on the tube wall of intermediate cavity, waveguide is provided with magnetron; In left chamber, be provided with condenser; On water inlet pipe, vaporizer is installed.
In described catalyst converter, be filled with CU/Ni/Al
2o
3catalyzer.
Described CU/Ni/Al
2o
3catalyzer is made the cylindrical of 1mm × 1mm.
Between described catalyst converter and housing, be provided with interval, form microwave cavity.
Described vaporizer comprises the automatically controlled heating jacket arranging along water inlet tube wall.
Described mixing tank comprises the agitator by driven by motor, and agitator specified speed is 1000r/min.
Described catalyst converter material is alumina-ceramic.
The present invention is based on the hydrogen preparation by reforming dimethyl ether steam reactor of microwave exposure owing to adopting microwave exposure reacting by heating thing, can make to heat inside and outside material simultaneously, system is heated evenly, avoid the appearance of district of localized hyperthermia and " cold spot ", can improve the energy efficiency of system, there is the double effects of energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is basic structure schematic diagram of the present invention.
Embodiment
Referring to Fig. 1, the hydrogen preparation by reforming dimethyl ether steam reactor that the present invention is based on microwave exposure, comprises housing 1, and the right-hand member of housing is respectively equipped with water inlet pipe 2 and dme inlet pipe 3, left end is provided with aerogenesis outlet pipe 4, in housing, becomes right chamber, intermediate cavity and left chamber by two baffle for separatings; In right chamber, be provided with mixing tank 5; In intermediate cavity, be provided with catalyst converter 6, the waveguide 7 that is communicated with intermediate cavity is installed on the tube wall of intermediate cavity, waveguide is provided with magnetron 8; In left chamber, be provided with condenser 9; Vaporizer 10 is installed on water inlet pipe.
In catalyst converter in the present invention, be filled with CU/Ni/Al
2o
3catalyzer, this catalyzer is made the cylindrical of 1mm × 1mm.Catalyst converter material is alumina-ceramic.
Between catalyst converter in the present invention and housing, be provided with interval, form microwave cavity 11.
Vaporizer in the present invention comprises the automatically controlled heating jacket arranging along water inlet tube wall.
Mixing tank in the present invention comprises the agitator by driven by motor, and agitator specified speed is 1000r/min.
Principle of work of the present invention is that water becomes water vapour to enter in mixing tank and mix with the dme after gas meter measures after gas meter metering through evaporator evaporation.Agitator speed in mixing tank can reach 1000r/min, can guarantee that gas fully mixes.Dme enters catalyst converter with the mixed gas of water vapour and reacts, catalyst bed is placed on and in reactor, loads copper-based catalysts, microwave is produced by magnetron, and waveguide is directed to electromagnetism wave energy in microwave cavity mixed gas is heated, and promotes the carrying out of hydrogen production reaction.Reaction aerogenesis is discharged after condenser carries out gas-water separation.
Claims (7)
1. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure, it is characterized in that: comprise housing, the right-hand member of housing is respectively equipped with water inlet pipe and dme inlet pipe, and left end is provided with aerogenesis outlet pipe, in housing, becomes right chamber, intermediate cavity and left chamber by two baffle for separatings; In right chamber, be provided with mixing tank; In intermediate cavity, be provided with catalyst converter, the waveguide that is communicated with intermediate cavity is installed on the tube wall of intermediate cavity, waveguide is provided with magnetron; In left chamber, be provided with condenser; On water inlet pipe, vaporizer is installed.
2. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure as claimed in claim 1, is characterized in that: in described catalyst converter, be filled with CU/Ni/Al
2o
3catalyzer.
3. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure as claimed in claim 2, is characterized in that: described CU/Ni/Al
2o
3catalyzer is made the cylindrical of 1mm × 1mm.
4. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure as claimed in claim 1, is characterized in that: between described catalyst converter and housing, be provided with interval, form microwave cavity.
5. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure as claimed in claim 1, is characterized in that: described vaporizer comprises the automatically controlled heating jacket arranging along water inlet tube wall.
6. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure as claimed in claim 1, is characterized in that: described mixing tank comprises the agitator by driven by motor, and agitator specified speed is 1000r/min.
7. the hydrogen preparation by reforming dimethyl ether steam reactor based on microwave exposure as claimed in claim 1, is characterized in that: described catalyst converter material is alumina-ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382308.7A CN104140079A (en) | 2014-08-06 | 2014-08-06 | Reactor for producing hydrogen by reforming dimethyl ether on basis of microwave irradiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382308.7A CN104140079A (en) | 2014-08-06 | 2014-08-06 | Reactor for producing hydrogen by reforming dimethyl ether on basis of microwave irradiation |
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|---|---|
| CN104140079A true CN104140079A (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410382308.7A Pending CN104140079A (en) | 2014-08-06 | 2014-08-06 | Reactor for producing hydrogen by reforming dimethyl ether on basis of microwave irradiation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355595A (en) * | 2018-03-16 | 2018-08-03 | 邱洪 | Microwave catalysis continuous conduit reactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592723B2 (en) * | 2001-01-31 | 2003-07-15 | Chang Yul Cha | Process for efficient microwave hydrogen production |
| JP2006188397A (en) * | 2005-01-07 | 2006-07-20 | New Japan Eco System Corp | Hydrogen producing method, hydrogen producing reactor, hydrogen producing apparatus and fuel cell power-generation apparatus |
| CN101891148A (en) * | 2009-05-19 | 2010-11-24 | 上海工程技术大学 | Reforming hydrogen production reactor for vehicle-mounted fuel cell |
-
2014
- 2014-08-06 CN CN201410382308.7A patent/CN104140079A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592723B2 (en) * | 2001-01-31 | 2003-07-15 | Chang Yul Cha | Process for efficient microwave hydrogen production |
| JP2006188397A (en) * | 2005-01-07 | 2006-07-20 | New Japan Eco System Corp | Hydrogen producing method, hydrogen producing reactor, hydrogen producing apparatus and fuel cell power-generation apparatus |
| CN101891148A (en) * | 2009-05-19 | 2010-11-24 | 上海工程技术大学 | Reforming hydrogen production reactor for vehicle-mounted fuel cell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355595A (en) * | 2018-03-16 | 2018-08-03 | 邱洪 | Microwave catalysis continuous conduit reactor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |