CN106629598B - The self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material - Google Patents
The self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material Download PDFInfo
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- 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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- 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 kind of self-heating type reforming hydrogen-preparation reactors of filled high-temperature phase-change material.The self-heating type reforming hydrogen-preparation reactor is equipped with the upper cover plate of methanol steam reforming reaction-ure inlet pipe and methanol oxidation combustion reactant inlet tube by upper surface successively from top to bottom, Graphite pad, upper evaporation plate, Graphite pad, lower evaporation plate, Graphite pad, lower surface is filled with the preparing hydrogen by reforming methanol absorber plate of high temperature phase change material (pcm), sealing plate, Graphite pad, lower surface is filled with the methanol oxidation burner plate of high temperature phase change material (pcm), Graphite pad and lower surface are equipped with combustion tail gas outlet and the lower cover of combustion tail gas outlet is laminated.The present invention utilizes the latent heat of phase change of high temperature phase change material (pcm), effectively improve the thermal stability of autothermic reactor, the temperature gradient for reducing inside reactor and temperature fluctuation when reactor work, inhibit catalyst activity reduction and to fall off as caused by overheating reactor, improves the thermal efficiency and methanol conversion ratio of reactor.
Description
Technical field
The present invention relates to alcohol reforming hydrogen production microreactors, 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, demand of the mankind to the energy increasingly increases.The failure increasingly of fossil fuel reserves and
The continuous aggravation of environmental pollution makes human needs urgently find a kind of clean regenerative resource.
Hydrogen Energy is received significant attention as a kind of clean energy resource.However the low energy densities of hydrogen are very low, storage is difficult.It moves
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 scheme for the mobile applicable hydrogen supply problem of hydrogen.
Chinese invention patent (application number 201210411706.8) discloses a kind of stacked microchannel reformation system of self-heating type
Hydrogen reactor, which reacts partial oxidation steam reforming, vapor reforming hydrogen production reaction is coupled with catalyst combustion reaction
Get up, entire microreactor can be enable from thermal starting and running, extraneous offer heat source is not provided.
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, increases the ratio volume of reactor,
Improve the yield of alcohol reforming hydrogen production reaction.
However, current related patents lack the concern to self-heating type reforming hydrogen-preparation reactor thermal stability.Self-heating type weight
The normal work of whole hydrogen-manufacturing reactor is reacted dependent on the hydrogen production from methanol-steam reforming endothermic reaction with methanol oxidation combustion heat release
Thermal coupling, whether the temperature of autothermic reactor is stablized matches 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, can lead to the reaction of methanol oxidation combustion heat release and methanol-water
The thermal power of the vapour reforming hydrogen producing endothermic reaction cannot exactly match, in addition being mostly metal used by current self heated reactor
Material, thermal capacitance is smaller, the power swing of the endothermic reaction and exothermic reaction can lead to autothermic reactor temperature rapid increase or under
Drop.Excessively high reaction temperature can cause sintering of catalyst, activity to decline, even fall off, and the hydrogen manufacturing performance of reactor is caused to decline,
Even jeopardize the safety of reactor；Too low reaction temperature can cause the output power of reactor to decline with methanol conversion,
Cause the waste of raw material.
In addition, the reaction chamber of autothermic reactor is often used micro channel array at present, runner number is more, and flow field is complicated, often
There can be the non-uniform situation of local velocity.Local velocity is uneven to lead to temperature distributing disproportionation in runner, generate localized heat
Point.Hot localised points can cause the region sintering of catalyst, side reaction to reinforce, and hydrogen manufacturing performance declines.
In conclusion in order to ensure hydrogen production efficiency and the safety of self-heating type reforming hydrogen-preparation reactor, it is necessary to design one
Effective, inexpensive, the easy to implement scheme of kind improves the thermal stability of reactor.
Invention content
The purpose of the present invention is to provide a kind of self-heating type reforming hydrogen-preparation reactors of filled high-temperature phase-change material.The self-heating
Reactor is equipped 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 high temperature phase change material (pcm)s with different melting points of filling mixing.The meeting when autothermic reactor overheats of high-melting-point high temperature phase change material (pcm)
Liquefaction is undergone phase transition, a large amount of heat can be stored by undergoing phase transition absorbed latent heat of phase change, be inhibited in reactor or reactor
Portion's temperatures at localized regions is excessively high, and when self-heating reforming hydrogen manufacturing temperature of reactor is too low, phase occurs for the high temperature phase change material (pcm) of low melting point
Become solidification, the latent heat of phase change of release can inhibit autothermic reactor to be subcooled, improve the thermal stability of autothermic reactor.
The technical solution adopted by the present invention is：
The reactor from top to bottom, is equipped 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, third graphite
Gasket, lower surface are filled with the preparing hydrogen by reforming methanol absorber plate of high temperature phase change material (pcm), sealing plate, the 4th Graphite pad, lower surface
Methanol oxidation burner plate, the 5th Graphite pad and lower surface filled with high temperature phase change material (pcm), which are equipped with, reforms 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 communicates, and the outlet of upper evaporation cavity is provided with reforming reactants through-hole, it is communicated with lower evaporation cavity entrance,
The outlet of lower evaporation cavity is provided with lower reforming reactants through-hole, it is communicated with the entrance drainage lumens of preparing hydrogen by reforming methanol absorber plate, on
Evaporation plate is provided with coaxially arranged upper burning vent hole and lower combustion with methanol oxidation combustion reactant inlet tube with lower evaporation plate
Burn vent hole.
The parallel four sides intracavitary in upper surface of the preparing hydrogen by reforming methanol absorber plate, be followed successively by entrance drainage lumens, reform chamber and
Drainage lumens are exported, entrance drainage lumens and outlet drainage lumens are triangle, and reformation chamber is micro channel array structure, micro channel array table
Face coats methanol steam reforming catalyst, and outlet drainage lumens end, which is provided with, reforms 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 equipped with rectangular high temperature phase change material (pcm) filled cavity,
It is micro channel array in the middle part of high temperature phase change material (pcm) filled cavity, preparing hydrogen by reforming methanol absorber plate is provided with to be entered with methanol oxidation burner plate
The burning vent hole that mouth drainage lumens communicate, high temperature phase change material (pcm) are filled in the high-temperature phase-change of preparing hydrogen by reforming methanol absorber plate lower surface
Material filled cavity.
The parallel four sides intracavitary in methanol oxidation burner plate upper surface, is followed successively by entrance drainage lumens, combustion chamber and outlet and draws
Chamber is flowed, inlet drainage lumens are triangle, the rounded projections arranged and entering on preparing hydrogen by reforming methanol absorber plate with outlet drainage lumens
Rounded projections arranged direction in mouthful drainage lumens and outlet drainage lumens is on the contrary, 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] outlet is coaxially arranged and communicates, and methanol oxidation burner plate lower surface is filled equipped with rectangular high temperature phase change material (pcm)
Chamber, high temperature phase change material (pcm) filled cavity middle part are micro channel array, and methanol oxidation burner plate is provided with coaxial with reformation gas outlet through hole
The reformation vent hole arranged and communicated；The high temperature phase change material (pcm) that high temperature phase change material (pcm) is filled in methanol oxidation burner plate lower surface is filled out
It fills in intracavitary, 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 equipped 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 filling two kinds of high temperature phase change material (pcm)s with different melting points.The high-melting-point high temperature phase change material (pcm) of filling is in self-heating
Reactor can undergo phase transition liquefaction when overheating, and a large amount of heat can be stored by undergoing phase transition absorbed latent heat of phase change, inhibit anti-
Answer device or reactor temperatures at localized regions excessively 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 inhibit autothermic reactor to be subcooled, to big
The big thermal stability for improving autothermic reactor.
(2) autothermic reactor that the present invention designs is when the temperature is excessively high, and high temperature phase change material (pcm) is undergone phase transition, by Solid State Transformation
For liquid, partial heat is stored in the form of latent heat of phase change, when temperature of reactor restore it is normal when, high temperature phase change material (pcm) again by
Liquid is changed into solid-state, discharges latent heat of phase change, is used 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 in the lower surface of micro channel array reaction chamber by being arranged corresponding micro channel array high-temperature phase-change material
Material, can improve the local thermal stability in self-heating reforming hydrogen manufacturing reactor, prevent the appearance of inside reactor hot localised points, into
And the hydrogen manufacturing performance of autothermic reactor is improved, reduce the carbon monoxide that side reaction generates.
(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, using the difference of high temperature phase change material (pcm) and plate metal material thermal conductivity, can optimize the thermal resistance point of reaction cavity region
Cloth makes the thermal resistance that reaction cavity region obtains evenly be distributed, and then obtains more uniform temperature distribution, improves autothermic reactor
Hydrogen production rate.
Description of the drawings
Fig. 1 is whole 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 vertical view in the present invention.
Fig. 4 is evaporation plate vertical view under the present invention.
Fig. 5 is preparing hydrogen by reforming methanol absorber plate vertical 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 sectional view of the present invention.
Fig. 8 is methanol oxidation burner plate vertical 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 sectional view 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：1, 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,
20, entrance drainage lumens, 21, reform chamber, 22, outlet drainage lumens, 23, reform 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, reform vent hole, 30, high
Warm phase-change material filled cavity, 31, reform gas outlet, 32, combustion tail gas outlet, 33, micro channel array, 34, microchannel battle array
Row.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2, shown in Figure 11, reactor of the invention from top to bottom, is equipped with methanol steam by upper surface successively
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
2, the preparing hydrogen by reforming methanol of the second Graphite pad, lower evaporation plate 3, third 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)
Ink pad piece and lower surface are equipped 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, under described
The upper surface of evaporation plate 3 is also provided with the lower evaporation cavity 16 with the snakelike microchannel of 2 same shape of upper evaporation plate, 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 object through-hole 15, it is communicated with lower 16 entrance of evaporation cavity, and 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 communicate, and upper evaporation plate 2 is provided with lower evaporation plate 3 fires with methanol oxidation
Burn reaction-ure inlet pipe 12 coaxially arranged upper burning vent hole 13 and lower burning vent hole 18.
As shown in Fig. 5, Fig. 6, Fig. 7, the parallel four sides intracavitary in upper surface of the preparing hydrogen by reforming methanol absorber plate 4 is followed successively by
Entrance drainage lumens 20 reform chamber 21 and outlet drainage lumens 22, and entrance drainage lumens 20 and outlet drainage lumens 22 are triangle, reform chamber
21 be micro channel array structure, and micro channel array surface coats methanol steam reforming catalyst, and outlet 22 end of drainage lumens is opened
Have and reforms 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 equipped with rectangular high temperature phase change material (pcm) filled cavity 24, and 24 middle part of high temperature phase change material (pcm) filled cavity 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 4 lower surface of preparing hydrogen by reforming methanol absorber plate.
As shown in Fig. 8, Fig. 9, Figure 10, the parallel four sides intracavitary in 7 upper surface of methanol oxidation burner plate is followed successively by entrance and draws
Chamber 25, combustion chamber 26 and outlet drainage lumens 27 are flowed, inlet drainage lumens 25 are triangle, triangle row with outlet drainage lumens 27
Row with preparing hydrogen by reforming methanol absorber plate 4 on entrance drainage lumens 20 and export drainage lumens 22 on rounded projections arranged direction on the contrary,
Combustion chamber 26 is micro channel array structure, and micro channel array surface coats methanol oxidation combustion catalyst, 27 end of outlet drainage lumens
It is provided with combustion tail gas outlet 28 at end, exports coaxially arranged with the combustion tail gas outlet 32 of lower cover 8 and communicates, methanol oxidation
7 lower surface of burner plate is equipped with rectangular high temperature phase change material (pcm) filled cavity 30, and 30 middle part of high temperature phase change material (pcm) filled cavity is micro- logical
Channel array 34, methanol oxidation burner plate 7 are provided with and reform the reformation vent hole 29 that gas outlet through hole 23 is coaxially arranged and communicates；It is high
Warm phase-change material 5 is filled in 30 in the high temperature phase change material (pcm) filled cavity of 7 lower surface of methanol oxidation burner plate, 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.Mechanical processing can be used in each plate or casting method obtains；
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, which is equipped with, reforms gas outlet 31 and combustion tail gas outlet 32, and respectively methanol steam reforming reacts
Product exit is exported with methanol oxidation combustion reaction products.
According to the needs (reaction temperature of methanol steam reformation hydrogen production is about 220 DEG C -300 DEG C) of reaction temperature, selection tool
There is high temperature phase change material (pcm) (such as LiNO of different phase transition temperatures3Phase 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 different high temperature phase change material (pcm)s of filling, respectively
Realize the control of temperature upper limit and lowest temperature when working reactor.
The reformation of the upper evaporation cavity 14 of upper evaporation plate 2, the lower evaporation cavity 16, preparing hydrogen by reforming methanol absorber plate 4 of lower evaporation plate 3
The width of the microchannel of 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
Degree is 1-5mm
As shown in figure 11, lower cover 8, which is equipped with, reforms 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 methanol steam reformation hydrogen production is about 220 DEG C -300 DEG C) of reaction temperature, selection tool
There is high temperature phase change material (pcm) (such as LiNO of different phase transition temperatures3Phase 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 different high temperature phase change material (pcm)s of filling, respectively
Realize the control of temperature upper limit and lowest temperature when working reactor.
The reformation chamber 21 of preparing hydrogen by reforming methanol absorber plate 19 in the combustion chamber 26 of methanol oxidation burner plate 7 respectively load have
Copper-based reforming hydrogen-production catalyst and platinum base methanol oxidation combustion catalyst.
The carrying method of catalyst is as follows：The pretreatment before catalyst load is carried out to microchannel reaction chamber first.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, to enhance catalyst microchannel surface adhesion strength.It is molten that one layer of thin aluminium is coated on microchannel later
Glue, to enhance adhesion strength of the catalyst in microchannel surface；After coating Aluminum sol, by dried reaction carriers in stove
Pretreatment work is so far completed in calcining, later furnace cooling.Finally, catalyst slurry is prepared, microchannel is coated uniformly on
Surface is placed on spontaneously drying (time is about one day) in room temperature.350 DEG C are heated to after drying in stove, is calcined 2 hours
Furnace cooling afterwards.It can adhere to one layer of uniform catalyst coat on the surface of microchannel reaction chamber by above step.
The present invention uses methanol steam reforming mode hydrogen manufacturing, and the chemistry that intracavitary occurs is reformed in preparing hydrogen by reforming methanol absorber plate
Reaction includes following three reactions：
Methanol steam reforming (SR)
CH3OH+H2O→3H2+CO2,
Vapour reaction (rWGS) against the current
CO2+H2→CO+H2O,
Methanol decomposition reaction (DE)
CH3OH→2H2+CO。
Wherein methanol steam reforming is main reaction, and vapour reaction and methanol decomposition reaction are side reaction against the current.
The present invention uses the method by air and the burning of methanol vapor mixed catalytic to be reformed for preparing hydrogen by reforming methanol absorber plate
Chamber heat supply, reaction are as follows：
2CH3OH+3O2→4H2O+2CO2。
Working principle of the present invention is as follows：
If the present invention overall gas flowing signal as shown in Fig. 1, Figure 12, inside reactor be divided into methanol steam reforming and
Methanol oxidation 2 routes of burning.
Wherein, methanol aqueous solution injects the methanol steam reforming reaction-ure inlet pipe 11 of upper cover plate 1 through syringe pump etc., into
Enter upper evaporation plate 1 and lower evaporation plate 3；The methanol aqueous solution of liquid is evaporated in the snakelike microchannel of upper evaporation plate 1 and lower evaporation plate 3
It is sufficiently heated in chamber, becomes gaseous state；Gaseous methanol vapor, steam mixture subsequently enter preparing hydrogen by reforming methanol absorber plate
4, relatively uniform velocity flow profile is obtained after the entrance drainage lumens 20 through preparing hydrogen by reforming methanol absorber plate 4, is existed into chamber is reformed
The reaction of methanol steam reformation hydrogen production occurs under the action of catalyst；It reforms gas and exports drainage lumens through preparing hydrogen by reforming methanol absorber plate 4
22 converge, and gas outlet through hole 23, the reformation vent hole 29 of methanol oxidation burner plate 7 are reformed by preparing hydrogen by reforming methanol absorber plate 4, from
The reformation gas outlet 31 of lower cover 8 flows out.
Methanol vapor and air Mixture enter reactor from 12 pipe of methanol oxidation combustion reactant import of upper cover plate 1,
The burning vent hole of catalyst combustion reaction object through-hole, preparing hydrogen by reforming methanol absorber plate 4 through upper evaporation plate 2 and lower evaporation plate 3 into
Enter methanol oxidation burner plate 7；It is laggard in a subtle way that velocity flow profile evenly is obtained by 7 entrance drainage lumens 25 of methanol oxidation burner plate
Methanol oxidation combustion reaction occurs under the effect of the catalyst for channel combustion chamber, and releases heat required when reactor work
Amount；Combustion tail gas exports 28 through 7 combustion tail gas of methanol oxidation burner plate, is discharged from the combustion tail gas outlet 32 of lower cover 8.
When reactor works, the thermocouple closed pore that 7 side of methanol oxidation burner plate is opened can be used for installing thermocouple, measure
The temperature of reactor, to which methanol aqueous solution, the methanol oxidation by adjusting methanol steam reforming reaction-ure inlet pipe 11 fire
The flow of the methanol vapor air Mixture of reaction-ure inlet pipe 12 is burnt, realizes and the temperature of reactor is controlled.
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 equipped with by upper surface（11）With methanol oxidation combustion reactant inlet tube（12）It is upper
Cover board（1）, the first Graphite pad, upper evaporation plate（2）, the second Graphite pad, lower evaporation plate（3）, third 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 equipped with and reform 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）It communicates, upper evaporation cavity（14）To be provided with reforming reactants logical for outlet
Hole（15）, it is with lower evaporation cavity（16）Entrance communicates, 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）It communicates, 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）The parallel four sides intracavitary in upper surface, be followed successively by entrance drainage lumens（20）, reform chamber（21）With
Export drainage lumens（22）, entrance drainage lumens（20）With outlet drainage lumens（22）For triangle, chamber is reformed（21）For micro channel array
Structure, micro channel array surface coat methanol steam reforming catalyst, export drainage lumens（22）End, which is provided with, reforms gas outlet
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 equipped 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 communicated
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）The parallel four sides intracavitary in upper surface, is followed successively by entrance drainage lumens（25）, combustion chamber（26）Draw with outlet
Flow chamber（27）, inlet 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 direction on the contrary, combustion chamber（26）
For micro channel array structure, micro channel array surface coats methanol oxidation combustion catalyst, exports drainage lumens（27）It opens end
There is combustion tail gas outlet（28）, with lower cover（8）Combustion tail gas outlet（32）It exports coaxially arranged and communicates, methanol oxidation
Burner plate（7）Lower surface is equipped 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 reforms 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
（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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039882.8A CN106629598B (en) | 2016-11-11 | 2016-11-11 | The self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material |
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| CN108163807B (en) * | 2017-12-29 | 2020-07-28 | 西安交通大学 | Composite pressure block type phase-change heat storage gas-solid hydrogen storage reactor |
| 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 |
| CN109761193B (en) * | 2019-03-20 | 2024-04-09 | 浙江工业大学 | Methanol reforming hydrogen production reactor |
| CN110155945B (en) * | 2019-04-22 | 2020-12-25 | 浙江大学 | Self-heating methanol reforming hydrogen production reactor integrating CO selective methanation |
| CN110143575B (en) * | 2019-04-22 | 2021-01-15 | 浙江大学 | Corrugated substrate-porous metal self-heating methanol reforming hydrogen production reactor |
| 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 |
| CN113735059B (en) * | 2021-08-23 | 2023-09-22 | 中南大学 | Alcohol reforming micro-reactor and hydrogen production method |
| CN114249297B (en) * | 2021-12-30 | 2023-01-31 | 江苏科技大学 | Methanol reforming hydrogen production system utilizing solar energy |
| 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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| CN104671204A (en) * | 2015-02-15 | 2015-06-03 | 浙江大学 | Laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor |
| CN206666114U (en) * | 2016-11-11 | 2017-11-24 | 浙江大学 | A kind of self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material |
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| CN104671204A (en) * | 2015-02-15 | 2015-06-03 | 浙江大学 | Laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor |
| CN206666114U (en) * | 2016-11-11 | 2017-11-24 | 浙江大学 | A kind of self-heating type reforming hydrogen-preparation reactor of filled high-temperature phase-change material |
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