CN106629598A - Self-heating type reactor used for hydrogen production by reforming and filled with high-temperature phase-change material - Google Patents
Self-heating type reactor used for hydrogen production by reforming and filled with high-temperature phase-change material Download PDFInfo
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- CN106629598A CN106629598A CN201611039882.8A CN201611039882A CN106629598A CN 106629598 A CN106629598 A CN 106629598A CN 201611039882 A CN201611039882 A CN 201611039882A CN 106629598 A CN106629598 A CN 106629598A
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- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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Abstract
The invention discloses a self-heating type reactor used for hydrogen production by reforming and filled with a high-temperature phase-change material. The self-heating type reactor used for hydrogen production by reforming is formed by sequentially laminating an upper cover plate provided with a methanol steam reforming reactant inlet pipe and a methanol catalytic combustion reactant inlet pipe on the upper surface, a graphite washer, an upper evaporation plate, a graphite washer, a lower evaporation plate, a graphite washer, a methanol reforming heat absorbing plate for hydrogen production filled with the high-temperature phase-change material on the lower surface, a sealing plate, a graphite washer, a methanol catalytic combustion plate filled with the high-temperature phase-change material on the lower surface, a graphite washer and a lower cover plate provided with a reformed gas outlet pipe and a combustion tail gas outlet pipe on the lower surface from top to bottom. The heat stability of a self-heating reactor is effectively improved by means of latent heat of phase change of the high-temperature phase-change material, the temperature gradient in the reactor and the temperature fluctuation of the reactor during working are reduced, catalyst activity reduction and peeling caused by overheating of the reactor are inhibited, and the heat efficiency and the methanol conversion rate of the reactor are improved.
Description
Technical field
The present invention relates to alcohol reforming hydrogen production microreactor, more particularly, to a kind of self-heating type of filled high-temperature phase-change material
Reforming hydrogen-preparation reactor.
Technical background
With the development of human society, the mankind increasingly increase the demand of the energy.Increasingly the exhaustion of fossil fuel reserves and
The continuous aggravation of environmental pollution, makes human needs urgently find a kind of regenerative resource of cleaning.
Hydrogen Energy is received significant attention as a kind of clean energy resource.But the low energy densities of hydrogen are very low, storage is difficult.Move
The hydrogen storage problem of dynamic occasion seriously hinders application of the Proton Exchange Membrane Fuel Cells in mobile occasion such as hydrogen energy automobile.Methanol-water
Steam scene reforming hydrogen producing technology provides effective solution for the applicable hydrogen supply problem of mobile hydrogen.
Chinese invention patent (application number 201210411706.8) discloses a kind of stacked microchannel reformation system of self-heating type
Hydrogen reactor, the reactor reacts partial oxidation steam reforming, vapor reforming hydrogen production reaction is coupled with catalyst combustion reaction
Get up, whole microreactor can be enable from thermal starting and running, it is not necessary to which the external world provides thermal source.
Chinese invention patent (application number 200910100100.0) discloses a kind of self-heating type with micro-boss array structure
Alcohol reforming hydrogen production micro passage reaction, carries micro-boss array structure on reaction carriers, increase the specific volume of reactor,
Improve the yield of alcohol reforming hydrogen production reaction.
However, current Patents lack the concern to self-heating type reforming hydrogen-preparation reactor heat endurance.Self-heating type weight
The normal work of whole hydrogen-manufacturing reactor depends on the hydrogen production from methanol-steam reforming endothermic reaction to react with methanol oxidation combustion heat release
Thermal coupling, whether whether the temperature of autothermic reactor stably match depending on the endothermic reaction with the power of exothermic reaction.Self-heating
When reactor works, the inlet flow rate of reactant is usually present fluctuation, and methanol oxidation combustion heat release can be caused to react and methanol-water
The thermal power of the vapour reforming hydrogen producing endothermic reaction can not be matched completely, add the mostly metal that current self heated reactor is adopted
Material, thermal capacitance is less, the power swing of the endothermic reaction and exothermic reaction can cause the temperature rapid increase of autothermic reactor or under
Drop.Too high reaction temperature can cause sintering of catalyst, activity decrease, even come off, and the hydrogen manufacturing performance for causing reactor declines,
Even jeopardize the security of reactor；Too low reaction temperature can cause the power output of reactor and methanol conversion to decline,
Cause the waste of raw material.
Additionally, at present the reaction chamber of autothermic reactor often uses micro channel array, runner number is more, and flow field is complicated, often
Can there is the uneven situation of local velocity.Local velocity is uneven to cause temperature distributing disproportionation in runner, produce localized heat
Point.Hot localised points can cause the region sintering of catalyst, side reaction to strengthen, and hydrogen manufacturing performance declines.
In sum, in order to ensure the hydrogen production efficiency and security of self-heating type reforming hydrogen-preparation reactor, it is necessary to design one
Plant the heat endurance that scheme effective, inexpensive, easy to implement improves reactor.
The content of the invention
It is an object of the invention to provide a kind of self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material.The self-heating
Reactor is provided with high temperature phase change material (pcm) filled cavity in the lower surface of preparing hydrogen by reforming methanol absorber plate and methanol oxidation burner plate, is used for
Two kinds of filling mixing has the high temperature phase change material (pcm) of different melting points.The meeting when autothermic reactor is overheated of high-melting-point high temperature phase change material (pcm)
Liquefaction is undergone phase transition, undergoing phase transition absorbed latent heat of phase change can store substantial amounts of heat, suppress in reactor or reactor
Portion's temperatures at localized regions is too high, and when self-heating reforming hydrogen manufacturing temperature of reactor is too low, the high temperature phase change material (pcm) of low melting point occurs phase
Become solidification, the latent heat of phase change of release can suppress autothermic reactor to be subcooled, improve the heat endurance of autothermic reactor.
The technical solution used in the present invention is：
The reactor from top to bottom, is provided with methanol steam reforming reaction-ure inlet pipe and methanol oxidation by upper surface successively
The upper cover plate of combustion reactant inlet tube, the first Graphite pad, upper evaporation plate, the second Graphite pad, lower evaporation plate, the 3rd graphite
Pad, lower surface preparing hydrogen by reforming methanol absorber plate, sealing plate, the 4th Graphite pad, lower surface filled with high temperature phase change material (pcm)
Methanol oxidation burner plate filled with high temperature phase change material (pcm), the 5th Graphite pad and lower surface are provided with reformation gas outlet and burning
The lower cover of offgas outlet pipe is formed by connecting.
The upper surface of the upper evaporation plate is provided with the upper evaporation cavity of snakelike microchannel, and the upper surface of the lower evaporation plate is also opened
There are the lower evaporation cavity with the snakelike microchannel of upper evaporation plate same shape, the entrance of upper evaporation cavity and the methanol steam of upper cover plate
Reforming reactants inlet tube is communicated, and the outlet of upper evaporation cavity is provided with reforming reactants through hole, and it is communicated with lower evaporation cavity entrance,
The outlet of lower evaporation cavity is provided with lower reforming reactants through hole, and it is communicated with the entrance drainage lumens of preparing hydrogen by reforming methanol absorber plate, on
Evaporation plate and lower evaporation plate are provided with the upper burning vent hole coaxially arranged with methanol oxidation combustion reactant inlet tube and lower combustion
Burn vent hole.
In parallel four side in the upper surface chamber of the preparing hydrogen by reforming methanol absorber plate, be followed successively by entrance drainage lumens, reformation chamber and
Outlet drainage lumens, entrance drainage lumens and outlet drainage lumens be triangle, reformation chamber be micro channel array structure, micro channel array table
Face coats methanol steam reforming catalyst, and outlet drainage lumens end is provided with reformation gas outlet through hole, the reformation gas with lower cover
Outlet is coaxially arranged and communicates, and preparing hydrogen by reforming methanol absorber plate lower surface is provided with rectangular high temperature phase change material (pcm) filled cavity,
High temperature phase change material (pcm) filled cavity middle part is micro channel array, and preparing hydrogen by reforming methanol absorber plate is provided with and enters with methanol oxidation burner plate
The burning vent hole that mouth drainage lumens are communicated, high temperature phase change material (pcm) is filled in the high-temperature phase-change of preparing hydrogen by reforming methanol absorber plate lower surface
Material filled cavity.
In the chamber of parallel four side in methanol oxidation burner plate upper surface, it is followed successively by entrance drainage lumens, combustion chamber and outlet and draws
Stream chamber, porch drainage lumens are entering on triangle, the rounded projections arranged and preparing hydrogen by reforming methanol absorber plate with outlet drainage lumens
Rounded projections arranged in mouthful drainage lumens and outlet drainage lumens is in opposite direction, and combustion chamber is micro channel array structure, micro channel array
Surface coats methanol oxidation combustion catalyst, and outlet drainage lumens end is provided with combustion tail gas outlet, the burning tail with lower cover
Gas outlet] export coaxially arranged and communicate, methanol oxidation burner plate lower surface is provided with rectangular high temperature phase change material (pcm) filling
Chamber, high temperature phase change material (pcm) filled cavity middle part is micro channel array, and methanol oxidation burner plate is provided with coaxial with reformation gas outlet through hole
The reformation vent hole arranged and communicate；High temperature phase change material (pcm) is filled in the high temperature phase change material (pcm) of methanol oxidation burner plate lower surface and fills out
Fill interior in chamber, the side of methanol oxidation burner plate is provided with a thermocouple hole.
The upper cover plate, sealing plate and lower cover are stainless steel；Upper evaporation plate, lower evaporation plate, preparing hydrogen by reforming methanol are inhaled
Hot plate and methanol oxidation burner plate are aluminium alloy.
The high temperature phase change material (pcm), is mixed by two kinds of high temperature phase change material (pcm)s with different melting points.
The invention has the advantages that：
(1) present invention is provided with high temperature phase change material (pcm) in the lower surface of preparing hydrogen by reforming methanol absorber plate and methanol oxidation burner plate
Filled cavity, for two kinds of high temperature phase change material (pcm)s with different melting points of filling.The high-melting-point high temperature phase change material (pcm) of filling is in self-heating
Reactor can undergo phase transition liquefaction when overheated, and undergoing phase transition absorbed latent heat of phase change can store substantial amounts of heat, suppress anti-
Answer device or reactor temperatures at localized regions too high, when self-heating reforming hydrogen manufacturing temperature of reactor is too low, the high-temperature phase-change of low melting point
Material meeting high temperature phase change material (pcm) can undergo phase transition solidification, and the latent heat of phase change of release can suppress autothermic reactor to be subcooled, so as to big
The big heat endurance for improving autothermic reactor.
(2) when temperature is too high, high temperature phase change material (pcm) undergoes phase transition the autothermic reactor of present invention design, by Solid State Transformation
For liquid, partial heat is stored in the form of latent heat of phase change, when temperature of reactor recovers normal, high temperature phase change material (pcm) again by
Liquid is changed into solid-state, latent heat of phase change is discharged, for the methanol steam reforming endothermic reaction.Therefore the present invention can improve self-heating
The thermal efficiency of reforming hydrogen-preparation reactor.
(5) present invention arranges corresponding micro channel array high-temperature phase-change material by the lower surface in micro channel array reaction chamber
Material, can improve the local heat endurance in self-heating reforming hydrogen manufacturing reactor, prevent the appearance of inside reactor hot localised points, enter
And the hydrogen manufacturing performance of raising autothermic reactor, reduce the carbon monoxide that side reaction is produced.
(6) by the way that the micro channel array of the micro channel array of upper surface reaction chamber and lower surface phase-change material filled cavity is wrong
Begin to rehearse cloth, different from plate metal material thermal conductivity using high temperature phase change material (pcm), can optimize the thermal resistance point of reaction cavity region
Cloth, is distributed the thermal resistance that reaction cavity region is obtained evenly, and then obtains more uniform temperature distribution, improves autothermic reactor
Hydrogen production rate.
Description of the drawings
Fig. 1 is overall three-dimensional exploded perspective view of the invention.
Fig. 2 is upper cover plate three dimensional structure diagram of the present invention.
Fig. 3 is evaporation plate top view in the present invention.
Fig. 4 is evaporation plate top view under the present invention.
Fig. 5 is preparing hydrogen by reforming methanol absorber plate top view of the present invention.
Fig. 6 is preparing hydrogen by reforming methanol absorber plate upward view of the present invention.
Fig. 7 is preparing hydrogen by reforming methanol absorber plate profile of the present invention.
Fig. 8 is methanol oxidation burner plate top view of the present invention.
Fig. 9 is methanol oxidation burner plate upward view of the present invention.
Figure 10 is methanol oxidation burner plate profile of the present invention.
Figure 11 is lower cover three dimensional structure diagram of the present invention.
Figure 12 is the overall gas flow path schematic diagram of the present invention.
In figure：1st, upper cover plate, 2, upper evaporation plate, 3, lower evaporation plate, 4, preparing hydrogen by reforming methanol absorber plate, 5, high-temperature phase-change material
Material, 6, sealing plate, 7, methanol oxidation burner plate, 8, lower cover, 9, Graphite pad, 10, thermocouple hole, 11, methanol steam weight
Whole reaction-ure inlet pipe, 12, methanol oxidation combustion reactant inlet tube, 13, upper burning vent hole, 14, upper evaporation cavity, 15, on
Reforming reactants through hole, 16, lower evaporation cavity, 17, lower reforming reactants through hole, 18, lower burning vent hole, 19, burning vent hole,
20th, entrance drainage lumens, 21, reformation chamber, 22, outlet drainage lumens, 23, reformation gas outlet through hole, 24, high temperature phase change material (pcm) filling
Chamber, 25, entrance drainage lumens, 26, combustion chamber, 27, outlet drainage lumens, 28, combustion tail gas outlet, 29, reformation vent hole, 30, high
Warm phase-change material filled cavity, 31, reformation gas outlet, 32, combustion tail gas outlet, 33, micro channel array, 34, microchannel battle array
Row.
Specific embodiment
With reference to the accompanying drawings and examples the present invention will be further described.
As shown in Figure 1, Figure 2, shown in Figure 11, the reactor of the present invention is provided with methanol steam by upper surface successively from top to bottom
The upper cover plate 1 of reforming reactants inlet tube 11 and methanol oxidation combustion reactant inlet tube 12, the first Graphite pad, upper evaporation plate
2nd, the preparing hydrogen by reforming methanol of the second Graphite pad, lower evaporation plate 3, the 3rd Graphite pad, lower surface filled with high temperature phase change material (pcm)
Absorber plate 4, sealing plate 6, the 4th Graphite pad, lower surface methanol oxidation burner plate 7, the 5th stone filled with high temperature phase change material (pcm)
Tampon piece and lower surface are provided with reformation gas outlet 31 and the lower cover 8 of combustion tail gas outlet 32 is formed by connecting.
As shown in Figure 3, Figure 4, the upper surface of the upper evaporation plate 2 is provided with the upper evaporation cavity 14 of snakelike microchannel, it is described under
The upper surface of evaporation plate 3 is also provided with the lower evaporation cavity 16 with the snakelike microchannel of the same shape of upper evaporation plate 2, upper evaporation cavity 14
Entrance is communicated with the methanol steam reforming reaction-ure inlet pipe 11 of upper cover plate 1, and the outlet of upper evaporation cavity 14 is provided with reformation instead
Answer thing through hole 15, it is communicated with the lower entrance of evaporation cavity 16, the outlet of lower evaporation cavity 16 is provided with lower reforming reactants through hole 17, it with
The entrance drainage lumens 20 of preparing hydrogen by reforming methanol absorber plate 4 are communicated, and upper evaporation plate 2 is provided with and methanol oxidation combustion with lower evaporation plate 3
Burn the coaxially arranged upper burning vent hole 13 of reaction-ure inlet pipe 12 and lower burning vent hole 18.
As shown in Fig. 5, Fig. 6, Fig. 7, in parallel four side in the upper surface chamber of the preparing hydrogen by reforming methanol absorber plate 4, it is followed successively by
Entrance drainage lumens 20, reformation chamber 21 and outlet drainage lumens 22, entrance drainage lumens 20 and outlet drainage lumens 22 be triangle, reformation chamber
21 is micro channel array structure, and coating methanol steam reforming catalyst in micro channel array surface exports the end of drainage lumens 22 and opens
There is reformation gas outlet through hole 23, it is coaxially arranged with the reformation gas outlet 31 of lower cover 8 and communicate, preparing hydrogen by reforming methanol absorber plate
4 lower surfaces are provided with rectangular high temperature phase change material (pcm) filled cavity 24, and the middle part of high temperature phase change material (pcm) filled cavity 24 is micro channel array
33, preparing hydrogen by reforming methanol absorber plate 4 is provided with the burning vent hole 19 communicated with the entrance drainage lumens 25 of methanol oxidation burner plate 7,
High temperature phase change material (pcm) 5 is filled in the high temperature phase change material (pcm) filled cavity 24 of the lower surface of preparing hydrogen by reforming methanol absorber plate 4.
As shown in Fig. 8, Fig. 9, Figure 10, in the parallel four side chamber of the upper surface of methanol oxidation burner plate 7, it is followed successively by entrance and draws
Stream chamber 25, combustion chamber 26 and outlet drainage lumens 27, porch drainage lumens 25 are triangle with outlet drainage lumens 27, triangle row
Arrange in opposite direction with the rounded projections arranged in the entrance drainage lumens 20 on preparing hydrogen by reforming methanol absorber plate 4 and outlet drainage lumens 22,
Combustion chamber 26 is micro channel array structure, and micro channel array surface coating methanol oxidation combustion catalyst, outlet drainage lumens 27 are last
Combustion tail gas outlet 28 is provided with end, is exported coaxially arranged and is communicated with the combustion tail gas outlet 32 of lower cover 8, methanol oxidation
The lower surface of burner plate 7 is provided with rectangular high temperature phase change material (pcm) filled cavity 30, and the middle part of high temperature phase change material (pcm) filled cavity 30 is micro- logical
Channel array 34, methanol oxidation burner plate 7 is provided with reformation vent hole 29 that is coaxially arranged with reformation gas outlet through hole 23 and communicating；It is high
Warm phase-change material 5 is filled in 30 in the high temperature phase change material (pcm) filled cavity of the lower surface of methanol oxidation burner plate 7, methanol oxidation burning
The side of plate 7 is provided with a thermocouple hole 10.
The upper cover plate 1, sealing plate 6 and lower cover 8 are stainless steel；Upper evaporation plate 2, lower evaporation plate 3, methanol recapitalization system
Hydrogen absorber plate 4 and methanol oxidation burner plate 7 are aluminium alloy.Each plate can be obtained using machining or casting method；
The high temperature phase change material (pcm) 5, is mixed by two kinds of high temperature phase change material (pcm)s with different melting points.
Lower cover 8 is provided with reformation gas outlet 31 and combustion tail gas outlet 32, respectively methanol steam reforming reaction
Product exit is exported with methanol oxidation combustion reaction products.
According to the needs (reaction temperature of methyl alcohol steam reformation hydrogen production is about 220 DEG C -300 DEG C) of reaction temperature, tool is selected
There is the high temperature phase change material (pcm) of different phase transition temperatures (such as LiNO3Phase transition temperature is 254 DEG C, NaNO2, phase transition temperature is 270 DEG C,
NaNO3Phase transition temperature is 306 DEG C, KNO3Phase transition temperature is 337 DEG C etc.)；Two kinds of different high temperature phase change material (pcm)s of filling, respectively
The control of temperature upper limit and lowest temperature when realization works reactor.
The upper evaporation cavity 14 of upper evaporation plate 2, the lower evaporation cavity 16 of lower evaporation plate 3, the reformation of preparing hydrogen by reforming methanol absorber plate 4
The width of the microchannel in chamber 21, the combustion chamber 26 of methanol oxidation burner plate 7 and high temperature phase change material (pcm) filled cavity 24 is 1-3mm, deep
Spend for 1-5mm
As shown in figure 11, lower cover 8 is provided with reformation gas outlet 31 and combustion tail gas outlet 32, and respectively methanol-water steams
Gas reforming reaction product exit is exported with methanol oxidation combustion reaction products.
According to the needs (reaction temperature of methyl alcohol steam reformation hydrogen production is about 220 DEG C -300 DEG C) of reaction temperature, tool is selected
There is the high temperature phase change material (pcm) of different phase transition temperatures (such as LiNO3Phase transition temperature is 254 DEG C, NaNO2, phase transition temperature is 270 DEG C,
NaNO3Phase transition temperature is 306 DEG C, KNO3Phase transition temperature is 337 DEG C etc.)；Two kinds of different high temperature phase change material (pcm)s of filling, respectively
The control of temperature upper limit and lowest temperature when realization works reactor.
It is loaded with respectively in the reformation chamber 21 of preparing hydrogen by reforming methanol absorber plate 19 and the combustion chamber 26 of methanol oxidation burner plate 7
Copper-based reforming hydrogen-production catalyst and platinum base methanol oxidation combustion catalyst.
The carrying method of catalyst is as follows：First the pretreatment before catalyst load is carried out to microchannel reaction chamber.First make
Micro passage reaction is cleaned with aqueous slkali, aqueous slkali can be with the oxide layer on removal devices surface, while increasing device by corrosion
Surface roughness, so as to strengthen adhesion strength of the catalyst in microchannel surface.Coat one layer of thin aluminium on microchannel afterwards molten
Glue, to strengthen adhesion strength of the catalyst in microchannel surface；After coating Alumina gel, by dried reaction carriers in stove
Calcining, afterwards along with the furnace cooling, so far completes pretreatment work.Finally, catalyst slurry is prepared, is coated uniformly on microchannel
Surface, is placed on spontaneously drying (time is about one day) in room temperature.350 DEG C are heated in stove after drying, are calcined 2 hours
Along with the furnace cooling afterwards.Can be in the uniform catalyst coat of one layer of the surface attachment of microchannel reaction chamber by above step.
The present invention adopts methyl alcohol steam reforming mode hydrogen manufacturing, the chemistry occurred in preparing hydrogen by reforming methanol absorber plate reformation chamber
Reaction includes three below reaction：
Methanol steam reforming (SR)
CH3OH+H2O→3H2+CO2,
Against the current vapour reacts (rWGS)
CO2+H2→CO+H2O,
Methanol decomposition reaction (DE)
CH3OH→2H2+CO。
Wherein methanol steam reforming is main reaction, and against the current vapour reaction and methanol decomposition reaction are side reaction.
The present invention is adopted air and the method for methanol vapor mixed catalytic burning as the reformation of preparing hydrogen by reforming methanol absorber plate
Chamber heat supply, reacts as follows：
2CH3OH+3O2→4H2O+2CO2。
The operation principle of the present invention is as follows：
As the present invention overall gas flowing illustrate as shown in Fig. 1, Figure 12, inside reactor be divided into methyl alcohol steam reforming and
Methanol oxidation 2 routes of burning.
Wherein, methanol aqueous solution Jing syringe pumps etc. inject the methanol steam reforming reaction-ure inlet pipe 11 of upper cover plate 1, enter
Enter upper evaporation plate 1 with lower evaporation plate 3；The methanol aqueous solution of liquid evaporates in upper evaporation plate 1 with the snakelike microchannel of lower evaporation plate 3
It is sufficiently heated in chamber, is changed into gaseous state；Gaseous methanol vapor, steam mixture subsequently enter preparing hydrogen by reforming methanol absorber plate
4, relatively uniform velocity flow profile is being obtained Jing after the entrance drainage lumens 20 of preparing hydrogen by reforming methanol absorber plate 4, exist into reformation chamber
There is the reaction of methyl alcohol steam reformation hydrogen production in the presence of catalyst；Reformation gas Jing preparing hydrogen by reforming methanol absorber plate 4 exports drainage lumens
22 converge, by the reformation gas outlet through hole 23 of preparing hydrogen by reforming methanol absorber plate 4, the reformation vent hole 29 of methanol oxidation burner plate 7, from
The reformation gas outlet 31 of lower cover 8 flows out.
Methanol vapor and air Mixture enter reactor from the pipe of methanol oxidation combustion reactant import 12 of upper cover plate 1,
The upper evaporation plates 2 of Jing are entered with the catalyst combustion reaction thing through hole of lower evaporation plate 3, the burning vent hole of preparing hydrogen by reforming methanol absorber plate 4
Enter methanol oxidation burner plate 7；The velocity flow profile obtained evenly through the entrance drainage lumens 25 of methanol oxidation burner plate 7 is laggard in a subtle way
, there is methanol oxidation combustion reaction in passage combustion chamber, and discharge heat required when reactor works in the presence of catalyst
Amount；The combustion tail gas of combustion tail gas Jing methanol oxidations burner plate 7 outlet 28, discharges from the combustion tail gas outlet 32 of lower cover 8.
When reactor works, the thermocouple closed pore that the side of methanol oxidation burner plate 7 is opened can be used for installing thermocouple, measurement
The temperature of reactor, so as to pass through to adjust methanol aqueous solution, the methanol oxidation combustion of methanol steam reforming reaction-ure inlet pipe 11
The flow of the methanol vapor air Mixture of reaction-ure inlet pipe 12 is burnt, the temperature control to reactor is realized.
The physical property of part high temperature phase change material (pcm) is as shown in the table.
Claims (6)
1. the self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material, it is characterised in that：The reactor from top to bottom, successively
Methanol steam reforming reaction-ure inlet pipe is provided with by upper surface（11）With methanol oxidation combustion reactant inlet tube（12）It is upper
Cover plate（1）, the first Graphite pad, upper evaporation plate（2）, the second Graphite pad, lower evaporation plate（3）, the 3rd Graphite pad, lower surface
Preparing hydrogen by reforming methanol absorber plate filled with high temperature phase change material (pcm)（4）, sealing plate（6）, the 4th Graphite pad, lower surface be filled with
The methanol oxidation burner plate of high temperature phase change material (pcm)（7）, the 5th Graphite pad and lower surface be provided with reformation gas outlet（31）And combustion
Burn offgas outlet pipe（32）Lower cover（8）It is formed by connecting.
2. the self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material according to claim 1, it is characterised in that：Institute
State evaporation plate（2）Upper surface be provided with the upper evaporation cavity of snakelike microchannel（14）, the lower evaporation plate（3）Upper surface also open
Have and upper evaporation plate（2）The lower evaporation cavity of the snakelike microchannel of same shape（16）, upper evaporation cavity（14）Entrance and upper cover plate
（1）Methanol steam reforming reaction-ure inlet pipe（11）Communicate, upper evaporation cavity（14）Outlet be provided with reforming reactants lead to
Hole（15）, it and lower evaporation cavity（16）Entrance is communicated, lower evaporation cavity（16）Outlet be provided with lower reforming reactants through hole（17）, it
With preparing hydrogen by reforming methanol absorber plate（4）Entrance drainage lumens（20）Communicate, upper evaporation plate（2）With lower evaporation plate（3）Be provided with
Methanol oxidation combustion reactant inlet tube（12）Coaxially arranged upper burning vent hole（13）With lower burning vent hole（18）.
3. the self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material according to claim 1, it is characterised in that：Institute
State preparing hydrogen by reforming methanol absorber plate（4）Parallel four side in upper surface chamber in, be followed successively by entrance drainage lumens（20）, reformation chamber（21）With
Outlet drainage lumens（22）, entrance drainage lumens（20）With outlet drainage lumens（22）For triangle, reformation chamber（21）For micro channel array
Structure, micro channel array surface coating methanol steam reforming catalyst, exports drainage lumens（22）End is provided with the outlet of reformation gas
Through hole（23）, with lower cover（8）Reformation gas outlet（31）It is coaxially arranged and communicate, preparing hydrogen by reforming methanol absorber plate（4）Under
Surface is provided with rectangular high temperature phase change material (pcm) filled cavity（24）, high temperature phase change material (pcm) filled cavity（24）Middle part is micro channel array
（33）, preparing hydrogen by reforming methanol absorber plate（4）It is provided with and methanol oxidation burner plate（7）Entrance drainage lumens（25）The combustion gas for communicating
Through hole（19）, high temperature phase change material (pcm)（5）It is filled in preparing hydrogen by reforming methanol absorber plate（4）The high temperature phase change material (pcm) filled cavity of lower surface
（24）.
4. the self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material according to claim 1, it is characterised in that：Institute
State methanol oxidation burner plate（7）In the chamber of parallel four side in upper surface, entrance drainage lumens are followed successively by（25）, combustion chamber（26）Draw with outlet
Stream chamber（27）, porch drainage lumens（25）With outlet drainage lumens（27）For triangle, the rounded projections arranged and preparing hydrogen by reforming methanol
Absorber plate（4）On entrance drainage lumens（20）With outlet drainage lumens（22）On rounded projections arranged it is in opposite direction, combustion chamber（26）
For micro channel array structure, micro channel array surface coating methanol oxidation combustion catalyst, drainage lumens are exported（27）Open end
There are combustion tail gas to export（28）, with lower cover（8）Combustion tail gas outlet（32）Outlet is coaxially arranged and communicates, methanol oxidation
Burner plate（7）Lower surface is provided with rectangular high temperature phase change material (pcm) filled cavity（30）, high temperature phase change material (pcm) filled cavity（30）Middle part
For micro channel array（34）, methanol oxidation burner plate（7）It is provided with and reformation gas outlet through hole（23）Weight that is coaxially arranged and communicating
Whole vent hole（29）；High temperature phase change material (pcm)（5）It is filled in methanol oxidation burner plate（7）The high temperature phase change material (pcm) filled cavity of lower surface
It is interior（30）It is interior, methanol oxidation burner plate（7）Side be provided with a thermocouple hole（10）.
5. the self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material according to claim 1, it is characterised in that：Institute
State upper cover plate（1）, sealing plate（6）And lower cover（8）It is stainless steel；Upper evaporation plate（2）, lower evaporation plate（3）, methanol recapitalization system
Hydrogen absorber plate（4）With methanol oxidation burner plate（7）It is aluminium alloy.
6. the self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material according to claim 1, it is characterised in that：Institute
High temperature phase change material (pcm) is stated, is mixed by two kinds of high temperature phase change material (pcm)s with different melting points.
Priority Applications (1)
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| CN108163807A (en) * | 2017-12-29 | 2018-06-15 | 西安交通大学 | A kind of gas-solid hydrogen storage reactor of composite compact formula phase-change thermal storage |
| CN108996473A (en) * | 2018-08-24 | 2018-12-14 | 宁波吉宏醇氢动力技术有限公司 | cracker and vehicle |
| CN109761193A (en) * | 2019-03-20 | 2019-05-17 | 浙江工业大学 | A kind of preparing hydrogen by reforming methanol reactor |
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| CN108996473B (en) * | 2018-08-24 | 2023-08-22 | 宁波吉宏醇氢动力技术有限公司 | Cracker and vehicle |
| CN109761193A (en) * | 2019-03-20 | 2019-05-17 | 浙江工业大学 | A kind of preparing hydrogen by reforming methanol reactor |
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| CN110467154A (en) * | 2019-09-30 | 2019-11-19 | 云南师范大学 | A kind of solar energy methanol steam reforming hydrogen manufacturing focusing reactor |
| CN113735059A (en) * | 2021-08-23 | 2021-12-03 | 中南大学 | Alcohol reforming microreactor and hydrogen production method |
| CN113735059B (en) * | 2021-08-23 | 2023-09-22 | 中南大学 | Alcohol reforming micro-reactor and hydrogen production method |
| CN114249297A (en) * | 2021-12-30 | 2022-03-29 | 江苏科技大学 | Methanol reforming hydrogen production system utilizing solar energy |
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| CN115504433A (en) * | 2022-09-30 | 2022-12-23 | 大连大学 | Combustion coupling electric heating device for integrated methanol reforming hydrogen production reactor |
| CN115504433B (en) * | 2022-09-30 | 2023-12-08 | 大连大学 | Combustion coupling electric heating device for integrated methanol reforming hydrogen production reactor |
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