CN108905905A - A kind of scraped film type falling film reactor of the dehydrogenation reaction suitable for liquid hydrogen source material - Google Patents
A kind of scraped film type falling film reactor of the dehydrogenation reaction suitable for liquid hydrogen source material Download PDFInfo
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 107
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 107
- 239000007788 liquid Substances 0.000 title claims abstract description 101
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000006356 dehydrogenation reaction Methods 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 title claims abstract description 41
- 239000010408 film Substances 0.000 title claims abstract description 40
- 239000011552 falling film Substances 0.000 title claims abstract description 25
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 12
- 238000007790 scraping Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 20
- 239000003054 catalyst Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 150000002431 hydrogen Chemical class 0.000 description 9
- 230000004044 response Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 150000001924 cycloalkanes Chemical class 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- FMGSKLZLMKYGDP-USOAJAOKSA-N dehydroepiandrosterone Chemical class C1[C@@H](O)CC[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CC=C21 FMGSKLZLMKYGDP-USOAJAOKSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
- B01J8/025—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical in a cylindrical shaped bed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0278—Feeding reactive fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0285—Heating or cooling the reactor
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- C—CHEMISTRY; METALLURGY
- 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
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
- C01B3/0015—Organic compounds; Solutions thereof
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- C—CHEMISTRY; METALLURGY
- 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
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/508—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by selective and reversible uptake by an appropriate medium, i.e. the uptake being based on physical or chemical sorption phenomena or on reversible chemical reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00858—Moving elements
- B01J2208/00867—Moving elements inside the bed, e.g. rotary mixer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00893—Feeding means for the reactants
- B01J2208/00911—Sparger-type feeding elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- General Health & Medical Sciences (AREA)
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Abstract
A kind of scraped film type falling film reactor of the dehydrogenation reaction suitable for liquid hydrogen source material, including reactor body, the side wall on reactor body top is equipped with inlet opening in a circumferential direction, reactor body top is equipped with exhaust pipe in the top of inlet opening, the bottom of reactor body is equipped with drainage hole, reactor body is equipped with liquid distribution trough at inlet opening, liquid distribution trough is by liquid from inlet opening evenly into reactor body, reactor body inner wall is coated with dehydrogenation, reactor body outer wall is equipped with insulation jacket, reactor body is equipped with and scrapes film device, scraping film device includes driving unit and agitating shaft, agitating shaft is vertically arranged in reactor body, agitating shaft is driven by driving unit and is rotated, agitating shaft is equipped with blade below inlet opening, there are gaps with reactor body inner wall for the outer end face of blade；Demister is equipped in the top of blade in reactor body.The present invention realizes gas-liquid separation, is not necessarily to external gas-liquid separator, reduces dehydrogenation cost.
Description
Technical field
The invention belongs to De-hydrogen Technology fields, and in particular to a kind of knifing of the dehydrogenation reaction suitable for liquid hydrogen source material
Formula falling film reactor.
Background technique
Hydrogen energy source is because having the characteristics that abundance, renewable, energy density be high and combustion cleaning, it is considered to be is 21 generation
The most potential energy of discipline.Hydrogen energy system mainly includes the utilization technology etc. of hydrogen source exploitation, hydrogen storage, defeated hydrogen and hydrogen, wherein
Hydrogen storage is the key point of Hydrogen Energy effective use.Organic liquid hydrogen storage technology is big with its hydrogen storage content, energy density is high, liquid storage and transportation
The advantages that safe ready, causes the concern of many countries, which is expected to play a significant role in the following Hydrogen Energy storage and transportation.
Organic liquid hydride hydrogen storage is can by a pair of certain unsaturated hydro carbons (benzene, toluene, naphthalene etc.) and hydrogen
Back reaction (dehydrogenation reaction and dehydrogenation reaction) is come what is realized.Dehydrogenation reaction realizes the storage (chemical bonding) of hydrogen, and dehydrogenation reaction is real
The release of existing hydrogen.Organic liquid hydride hydrogen storage technology has hydrogen storage content big, storage, transport, maintenance, maintenance safe ready, just
In utilization existing oil storage and transporting equipment, the advantages that being recycled for multiple times.There are two directions to have application for organic liquid hydrogen storage
Prospect.First is that being applied to hydrogen cell automobile, automobile fills cycloalkane in gas station, and dehydrogenation in the car is supplied to hydrogen fuel electricity
Pond, aromatic hydrocarbons return again to gas station's dehydrogenation production cycloalkane, and realization recycles, achievees the purpose that environmentally protective.Another application
It is exactly using the hydrogen storage realization energy across season trans-regional storage and transport.When Hydrogen Energy is enriched, hydrogen is stored by aromatic hydrocarbons dehydrogenation；
When Hydrogen Energy demand, pass through the dehydrogenation of dehydrogenation factory.
The dehydrogenation reactor of the prior art is when carrying out dehydrogenation, it may appear that air-teturning mixed phenomenon, and the purity of product is reduced, and
And after carrying out dehydrogenation, also needs again an additional gas-liquid separator to carry out gas-liquid separation processing to hydrogen, increase Dehydroepiandrosterone derivative
Cost.
Summary of the invention
Present invention aims to overcome that the shortcomings that prior art and insufficient, provide a kind of suitable for liquid hydrogen source material
The scraped film type falling film reactor of dehydrogenation reaction has continuous production, and pressure drop is small, is not necessarily to external gas-liquid separator, no axially to return
The advantages that mixed.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of scraped film type falling film reactor of the dehydrogenation reaction suitable for liquid hydrogen source material, including reactor body, instead
The side wall of device body upper part is answered to be equipped with inlet opening in a circumferential direction, reactor body top is equipped with exhaust in the top of inlet opening
Pipe, the bottom of reactor body are equipped with drainage hole, and reactor body is equipped with liquid distribution trough at inlet opening, and liquid distribution trough allows
For liquid from inlet opening evenly into reactor body, reactor body inner wall is coated with dehydrogenation, reactor sheet
External wall is equipped with insulation jacket, and reactor body is equipped with and scrapes film device, and scraping film device includes driving unit and agitating shaft, stirring
Axis is vertically arranged in reactor body, and agitating shaft is driven by driving unit and rotated, and agitating shaft is equipped with blade below inlet opening,
There are gaps for the outer end face and reactor body inner wall of blade, and the liquid for falling into gap is spread to one layer uniformly after blade rotation
Liquid film；The demister for allowing hydrogen to pass through is equipped in the reactor body in the top of blade.
Action principle of the invention：Liquid hydrogen source material inputs scraped film type falling film reactor by inlet opening, specifically liquid
Distributor by liquid from inlet opening evenly into reactor body, liquid hydrogen source material is downward along reactor body inner wall
Stream, catalyst reaction wall flow down, and knifing blade scrapes liquid hydrogen source material along catalyst reaction wall under the drive of driving unit
At one layer of uniform liquid film, have the function that liquid is uniformly distributed and reinforcing mass transfer to a certain extent；Liquid hydrogen source material exists
It is taken off with the lower dehydrogenation reaction that occurs of the dehydrogenation effect on reactor body inner wall as hydrogen storage carrier under specified reaction temperature
Hydrogen reaction is the endothermic reaction, and insulation jacket provides heat for dehydrogenation reaction, and hydrogen storage carrier reaches the bottom of reactor body, by arranging
Reactor is discharged in fluid apertures；The hydrogen that dehydrogenation reaction generates is discharged by the exhaust pipe of reactor body under pressure, due to hydrogen
Gas is the output from liquid hydrogen source material, can carry a small amount of drop in possible hydrogen secretly, hydrogen is in discharge reactor sheet
Before body, hydrogen initially passes through demister, and the drop being entrained on hydrogen can be adsorbed on demister, to realize gas-liquid separation.
Scraped film type falling film reactor of the present invention has great response area, and dehydrogenation reaction is liquid hydrogen source material and catalysis
Agent effect generates hydrogen, needs biggish response area, is coated with the inner wall of catalyst all compared with conventional tank reactor
It is to provide the region of dehydrogenation reaction, improves reaction efficiency, the reaction time is reduced, to improve economy；And knifing of the present invention
The downward liquid flow of formula falling film reactor, gas flow up, axial to improve the purity of product without air-teturning mixed phenomenon, reduce
Later period separation costs；The liquid hydrogen source material that gap will be fallen into after blade rotation of the invention spreads to one layer of uniform liquid film, from
And liquid hydrogen source material is uniformly distributed, increase the contact area of liquid hydrogen source material and reactor body inner wall catalyst,
Have the function that enhancing mass and heat transfer；For hydrogen before reactor body is discharged, hydrogen initially passes through demister, is entrained on hydrogen
Drop can be adsorbed on demister, to realize gas-liquid separation.
As an improvement of the present invention, the demister is steel wire filter screen.
As a kind of improvement of the present invention, the liquid distribution trough is the ring of reactor body outer wall where being fixed on inlet opening
Describe that device, the side wall on reactor body top are along the circumferential direction equipped with several inlet openings, toroidal container is equipped with inlet tube.
As a kind of improvement of the present invention, the lower part of the reactor body is equipped with fluid collection device, fluid collection device
It is connected with reactor body drainage hole, fluid collection device is equipped with drain pipe.
Further, the fluid collection device is the toroidal container for being fixed on reactor body lower external, and annular is held
Device is equipped with drain pipe, and the lower part of the reactor body is along the circumferential direction equipped with multiple drainage holes.
As a kind of improvement of the present invention, the driving unit is stirring motor, and stirring motor is arranged on reactor body top
The output shaft in face, the stirring motor is connected by magnetic shaft coupling with agitating shaft, specifically, the output shaft of stirring motor with
The outer magnet of magnetic shaft coupling connects, and the inner magnet of agitating shaft and magnetic shaft coupling connects.
As a kind of improvement of the present invention, the blade includes support arm and scraper plate, and support arm inner end is fixed on agitating shaft, scraper plate
It is fixed on support arm outer end, and the outer end face of scraper plate is parallel with reactor body inner wall.
Compared with prior art, the present invention has the following advantages that：
1, scraped film type falling film reactor of the present invention has a great response area, and dehydrogenation reaction is liquid hydrogen source material and urge
Agent effect generates hydrogen, needs biggish response area, and the inner wall of catalyst is coated with compared with conventional tank reactor
All it is to provide the region of dehydrogenation reaction, improves reaction efficiency, the reaction time is reduced, to improve economy；
2, the downward liquid flow of scraped film type falling film reactor of the present invention, gas flow up, axial without air-teturning mixed phenomenon, mention
The high purity of product, reduces later period separation costs；
3, the liquid hydrogen source material that will fall into gap after blade of the invention rotation spreads to one layer of uniform liquid film, to make
It obtains liquid hydrogen source material to be uniformly distributed, increases the contact area of liquid hydrogen source material and reactor body inner wall catalyst, reach
The effect of enhancing mass and heat transfer；
4, for hydrogen before reactor body is discharged, hydrogen initially passes through demister, and the drop being entrained on hydrogen can be adsorbed in
On demister, to realize gas-liquid separation, it is not necessarily to external gas-liquid separator, reduces dehydrogenation cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the scraped film type falling film reactor for the dehydrogenation reaction that the present invention is suitable for liquid hydrogen source material.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.It is understood that tool described herein
Body embodiment is used only for explaining the present invention rather than limiting the invention.It also should be noted that for the ease of retouching
It states, only some but not all contents related to the present invention are shown in the drawings.
Embodiment
Referring to FIG. 1, a kind of scraped film type falling film reactor of the dehydrogenation reaction suitable for liquid hydrogen source material, including reaction
Device ontology 10, the side wall on 10 top of reactor body are equipped with inlet opening 11 in a circumferential direction, 10 top of reactor body into
The top of fluid apertures 11 is equipped with exhaust pipe 12, and the bottom of reactor body 10 is equipped with drainage hole 13, and reactor body 10 is in inlet opening
Liquid distribution trough 20 is equipped at 11, liquid distribution trough 20 allows liquid from inlet opening 11 evenly into reactor body 10,
10 inner wall of reactor body is coated with dehydrogenation, and 10 outer wall of reactor body is equipped with insulation jacket 30；
Reactor body 10 is equipped with and scrapes film device 40, and scraping film device 40 includes driving unit 41 and agitating shaft 42, stirring
Axis 42 is vertically arranged in reactor body 10, and agitating shaft 42 is driven by driving unit 41 and rotated, and agitating shaft 42 is in inlet opening 11
Lower section is equipped with blade, and there are gaps for the outer end face and 10 inner wall of reactor body of blade, and the liquid in gap will be fallen into after blade rotation
Body spreads to one layer of uniform liquid film；
The demister 50 for allowing hydrogen to pass through is equipped in the top of blade in the reactor body 10.
Action principle of the invention：Liquid hydrogen source material inputs scraped film type falling film reactor by inlet opening, specifically liquid
Distributor by liquid from inlet opening evenly into reactor body, liquid hydrogen source material is downward along reactor body inner wall
Stream, catalyst reaction wall flow down, and knifing blade scrapes liquid hydrogen source material along catalyst reaction wall under the drive of driving unit
At one layer of uniform liquid film, have the function that liquid is uniformly distributed and reinforcing mass transfer to a certain extent；Liquid hydrogen source material exists
It is taken off with the lower dehydrogenation reaction that occurs of the dehydrogenation effect on reactor body inner wall as hydrogen storage carrier under specified reaction temperature
Hydrogen reaction is the endothermic reaction, and insulation jacket provides heat for dehydrogenation reaction, and hydrogen storage carrier reaches the bottom of reactor body, by arranging
Reactor is discharged in fluid apertures；The hydrogen that dehydrogenation reaction generates is discharged by the exhaust pipe of reactor body under pressure, due to hydrogen
Gas is the output from liquid hydrogen source material, can carry a small amount of drop in possible hydrogen secretly, hydrogen is in discharge reactor sheet
Before body, hydrogen initially passes through demister, and the drop being entrained on hydrogen can be adsorbed on demister, to realize gas-liquid separation.
Scraped film type falling film reactor of the present invention has great response area, and dehydrogenation reaction is liquid hydrogen source material and catalysis
Agent effect generates hydrogen, needs biggish response area, is coated with the inner wall of catalyst all compared with conventional tank reactor
It is to provide the region of dehydrogenation reaction, improves reaction efficiency, the reaction time is reduced, to improve economy；And knifing of the present invention
The downward liquid flow of formula falling film reactor, gas flow up, axial to improve the purity of product without air-teturning mixed phenomenon, reduce
Later period separation costs；The liquid hydrogen source material that gap will be fallen into after blade rotation of the invention spreads to one layer of uniform liquid film, from
And liquid hydrogen source material is uniformly distributed, increase the contact area of liquid hydrogen source material and reactor body inner wall catalyst,
Have the function that enhancing mass and heat transfer；For hydrogen before reactor body is discharged, hydrogen initially passes through demister, is entrained on hydrogen
Drop can be adsorbed on demister, to realize gas-liquid separation.
In the present embodiment, the demister 50 is steel wire filter screen.The drop being entrained on hydrogen can be adsorbed in steel wire
On filter screen, and hydrogen then passes through steel wire filter screen.
In the present embodiment, the liquid distribution trough 20 is the annular for being fixed on 11 place reactor body outer wall of inlet opening
Container, the side wall on 10 top of reactor body are along the circumferential direction equipped with several inlet openings 11, and toroidal container is equipped with inlet tube
21.Hydrogen storage carrier first passes through inlet tube and enters in toroidal container, then after being redistributed by toroidal container from several inlet openings into
Enter into reactor body, is formed simultaneously several hydrogen storage carrier inlet points, improves the uniformity coefficient of liquid.
In the present embodiment, the lower part of the reactor body 10 is equipped with fluid collection device 60, fluid collection device 60
It is connected with reactor body drainage hole 13, fluid collection device 60 is equipped with drain pipe.Specifically, the fluid collection device
60 be the toroidal container for being fixed on 10 lower external of reactor body, and toroidal container is equipped with drain pipe 61, the reactor body
Lower part be along the circumferential direction equipped with multiple drainage holes.It sets fluid collection device to the structure of toroidal container, can increase collection
Area, more efficient collection liquid, and it can be designed with drainage hole in reactor body lower part surrounding, liquid flow can be made
It moves more uniform.
In the present embodiment, the driving unit 41 is stirring motor, and stirring motor is arranged in 10 top surface of reactor body,
The output shaft of the stirring motor is connected by magnetic shaft coupling 45 with agitating shaft 42, specifically, the output shaft of stirring motor
It is connect with the outer magnet of magnetic shaft coupling 45, agitating shaft 42 is connect with the inner magnet of magnetic shaft coupling 45.Pass through magnetic shaft coupling
Connection type, it is possible to reduce in the aperture of reactor body, the air-tightness of enhancing reactor ontology；Because hydrogenation reaction is volume
Reaction is reduced, the higher reaction effect of pressure is better, while with the presence of hydrogen in system, sealing difficulty is quite big, uses magnetic force sense
It should be driven, the agitating shaft of motor output shaft and lower part is not directly contacted with, and leakproofness has sizable guarantee.
In the present embodiment, the blade includes support arm 43 and scraper plate 44, and 43 inner end of support arm is fixed on agitating shaft 42, scrapes
Plate 44 is fixed on 43 outer end of support arm, and the outer end face of scraper plate 44 is parallel with 40 inner wall of reactor body.Scraper plate is in agitating shaft
Lower rotation is driven, postrotational scraper plate spreads to the liquid in gap between the outer end face for dropping into scraper plate and reactor body inner wall
One layer of uniform liquid film, to keep knifing effect more preferable, scraper plate is the length direction long lath parallel with reactor body inner wall,
The longer formation of lath scrapes that membrane area is bigger, and knifing effect is better.
Compared with prior art, the present invention has the following advantages that：
1, scraped film type falling film reactor of the present invention has a great response area, and dehydrogenation reaction is liquid hydrogen source material and urge
Agent effect generates hydrogen, needs biggish response area, and the inner wall of catalyst is coated with compared with conventional tank reactor
All it is to provide the region of dehydrogenation reaction, improves reaction efficiency, the reaction time is reduced, to improve economy；
2, the downward liquid flow of scraped film type falling film reactor of the present invention, gas flow up, axial without air-teturning mixed phenomenon, mention
The high purity of product, reduces later period separation costs；
3, the liquid hydrogen source material that will fall into gap after blade of the invention rotation spreads to one layer of uniform liquid film, to make
It obtains liquid hydrogen source material to be uniformly distributed, increases the contact area of liquid hydrogen source material and reactor body inner wall catalyst, reach
The effect of enhancing mass and heat transfer；
4, for hydrogen before reactor body is discharged, hydrogen initially passes through demister, and the drop being entrained on hydrogen can be adsorbed in
On demister, to realize gas-liquid separation, it is not necessarily to external gas-liquid separator, reduces dehydrogenation cost.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (7)
1. a kind of scraped film type falling film reactor of the dehydrogenation reaction suitable for liquid hydrogen source material, including reactor body, reaction
The side wall of device body upper part is equipped with inlet opening in a circumferential direction, and reactor body top is equipped with exhaust in the top of inlet opening
The bottom of pipe, reactor body is equipped with drainage hole, it is characterised in that：Reactor body is equipped with liquid distribution trough at inlet opening,
Liquid distribution trough by liquid from inlet opening evenly into reactor body, reactor body inner wall is coated with catalysis dehydrogenation
Agent, reactor body outer wall be equipped with insulation jacket, reactor body be equipped with scrape film device, scrape film device include driving unit and
Agitating shaft, agitating shaft are vertically arranged in reactor body, and agitating shaft is driven by driving unit and rotated, and agitating shaft is under inlet opening
Side is equipped with blade, and there are gaps for the outer end face and reactor body inner wall of blade, scrapes the liquid for falling into gap after blade rotation
At one layer of uniform liquid film；The demister for allowing hydrogen to pass through is equipped in the reactor body in the top of blade.
2. the scraped film type falling film reactor of the dehydrogenation reaction according to claim 1 suitable for liquid hydrogen source material, special
Sign is：The demister is steel wire filter screen.
3. the scraped film type falling film reactor of the dehydrogenation reaction according to claim 1 suitable for liquid hydrogen source material, special
Sign is：The liquid distribution trough is the toroidal container for being fixed on reactor body outer wall where inlet opening, on reactor body
The side wall in portion is along the circumferential direction equipped with several inlet openings, and toroidal container is equipped with inlet tube.
4. the scraped film type falling film reactor of the dehydrogenation reaction according to claim 1 suitable for liquid hydrogen source material, special
Sign is：The lower part of the reactor body is equipped with fluid collection device, fluid collection device and reactor body drainage hole phase
Connection, fluid collection device are equipped with drain pipe.
5. the scraped film type falling film reactor of the dehydrogenation reaction according to claim 4 suitable for liquid hydrogen source material, special
Sign is：The fluid collection device is the toroidal container for being fixed on reactor body lower external, and toroidal container is equipped with drain
Pipe, the lower part of the reactor body is along the circumferential direction equipped with multiple drainage holes.
6. the scraped film type falling film reactor of the dehydrogenation reaction according to claim 1 suitable for liquid hydrogen source material, special
Sign is：The driving unit is stirring motor, and stirring motor is arranged in reactor body top surface, the output of the stirring motor
Axis is connected by magnetic shaft coupling with agitating shaft, and specifically, the output shaft of stirring motor and the outer magnet of magnetic shaft coupling connect
It connects, the inner magnet connection of agitating shaft and magnetic shaft coupling.
7. the scraped film type falling film reactor of the dehydrogenation reaction according to claim 1 suitable for liquid hydrogen source material, special
Sign is：The blade includes support arm and scraper plate, and support arm inner end is fixed on agitating shaft, and scraper plate is fixed on support arm outer end, and scrapes
The outer end face of plate is parallel with reactor body inner wall.
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