CN114113472A - Method for realizing performance test of catalytic conversion reaction of multiple para-hydrogen - Google Patents
Method for realizing performance test of catalytic conversion reaction of multiple para-hydrogen Download PDFInfo
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- CN114113472A CN114113472A CN202111332653.6A CN202111332653A CN114113472A CN 114113472 A CN114113472 A CN 114113472A CN 202111332653 A CN202111332653 A CN 202111332653A CN 114113472 A CN114113472 A CN 114113472A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 24
- 238000011056 performance test Methods 0.000 title abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 91
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 91
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000006243 chemical reaction Methods 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 37
- 238000004458 analytical method Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 230000001172 regenerating effect Effects 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 7
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 230000000704 physical effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims description 3
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses a method for realizing performance test of catalytic conversion reaction of various para-hydrogen, which comprises the following steps: under a vacuum heat insulation environment, a hydrogen inlet is divided into a hydrogen reaction path I and a hydrogen cooling path II which are connected in parallel, the hydrogen reaction path I is sequentially communicated with a flow controller I, a precooling heat exchanger I and a parahydrogen generation reactor, so that hydrogen is fully cooled in a liquid nitrogen temperature zone and is subjected to catalytic conversion reaction of the parahydrogen; the hydrogen cooling path II is sequentially communicated with the flow controller II and the precooling heat exchanger II, so that hydrogen is fully cooled in a liquid nitrogen temperature zone; fully mixing two paths of hydrogen in a mixing chamber to obtain raw material hydrogen to be reacted; the hydrogen to be reacted enters the low-pressure side of the regenerative heat exchanger after passing through the high-pressure side of the regenerative heat exchanger and reacting in the heat sink, and then the hydrogen leaves the regenerative heat exchanger and is communicated with the analysis interface, and enters the parahydrogen component analysis system to measure the parahydrogen content. The invention can solve the problem of fixed reaction temperature and the content of parahydrogen at the inlet of hydrogen in the prior art.
Description
Technical Field
The invention relates to the technical field of hydrogen liquefaction and storage, in particular to a method for realizing performance test of catalytic conversion reaction of various para-hydrogen.
Background
The hydrogen molecule can be divided into two spin isomers of orthohydrogen and parahydrogen due to the difference of the spin directions of the two atomic nuclei. The spins of two hydrogen nuclei in orthohydrogen are in the same direction, and the spins of two hydrogen nuclei in parahydrogen are in opposite directions. The concentration of the normal-para-hydrogen of the hydrogen changes with the temperature under the equilibrium state, the normal-para-hydrogen ratio is 0.75:0.25 at normal temperature (300K), the normal-para-hydrogen ratio is 0.49:0.51 at the liquid nitrogen temperature (77K), and the liquid hydrogen temperature (20K) reaches 0.002: 0.998.
As the temperature decreases, the orthohydrogen can spontaneously convert to parahydrogen, and the molecular energy level of the orthohydrogen is higher than that of parahydrogen, with the conversion process releasing heat. In the absence of a catalyst, the ortho-para-hydrogen conversion reaction is very slow. Since the heat of conversion of ortho-para-hydrogen is greater than the latent heat of vaporization of liquid hydrogen, continued conversion of ortho-para-hydrogen during storage of liquid hydrogen causes evaporative dissipation of liquid hydrogen. In the process of liquid hydrogen production, the catalytic conversion reaction of para-hydrogen must be designed artificially, so that the proportion of para-hydrogen in the liquid hydrogen to be stored reaches more than 95%, which is also the key for obtaining stable stored liquid hydrogen.
The normal-secondary hydrogen reactor is a facility for accelerating the normal-secondary hydrogen catalytic reaction to reach an equilibrium state by filling a catalyst and creating a low-temperature zone. They can be classified into adiabatic reactors, isothermal reactors and continuous reactors, depending on the conversion method. Most of the current positive and secondary hydrogen reactors built in various research institutions at home and abroad are isothermal reactors and adiabatic reactors. Because of its small scale, simple principle and structure, it can produce parahydrogen for researching hydrogen physical property and parahydrogen application. In the liquid hydrogen production engineering, a reaction parahydrogen content-space velocity curve (under the conditions of certain temperature, pressure and inlet parahydrogen content proportion, different space velocities correspond to parahydrogen concentration curves after reaction) can visually represent the parahydrogen reaction, and the method is used for calculating the hydrogen and catalyst consumption and estimating the reaction progress degree, and simplifying engineering calculation. In liquid hydrogen production projects, multiple sets of reaction para-hydrogen content-space velocity curves are required to represent the integrity of the continuous conversion process. However, the research on the catalytic conversion of para-hydrogen from the perspective of liquid hydrogen production flow is few, and the main disadvantages are that: the operating temperature zone of the reaction of the para-hydrogen is fixed, mainly comprising a liquid nitrogen temperature zone (80K) and a liquid hydrogen temperature zone (20K); only a single conversion process, i.e. isothermal or adiabatic, can be used; the hydrogen-parahydrogen component of the raw material is fixed (the content is 25 percent), and the continuous conversion process of liquid hydrogen production is not met.
Disclosure of Invention
The invention aims to provide a method for realizing the performance test of a plurality of para-hydrogen catalytic conversion reactions, which can solve the problems that the existing para-hydrogen catalytic conversion test platform has a single conversion mode and the reaction temperature and the content of the hydrogen and the para-hydrogen at the inlet are fixed.
In order to achieve the purpose, the invention provides the following technical scheme:
a method of performing a performance test for a plurality of ortho-para hydrogen catalytic conversion reactions, the method comprising the steps of:
(1) under a vacuum heat insulation environment, a hydrogen inlet is divided into a hydrogen reaction path I and a hydrogen cooling path II which are connected in parallel, the hydrogen reaction path I is sequentially communicated with a flow controller I, a precooling heat exchanger I and a parahydrogen generation reactor, so that hydrogen is fully cooled in a liquid nitrogen temperature zone and is subjected to catalytic conversion reaction of the parahydrogen; the hydrogen cooling path II is sequentially communicated with the flow controller II and the precooling heat exchanger II, so that hydrogen is fully cooled in a liquid nitrogen temperature zone; fully mixing two paths of hydrogen in a mixing chamber to obtain raw material hydrogen to be reacted;
(2) the hydrogen to be reacted enters the low-pressure side of the regenerative heat exchanger after passing through the high-pressure side of the regenerative heat exchanger and reacting in the heat sink, and then the hydrogen leaves the regenerative heat exchanger and is communicated with the analysis interface, and enters the parahydrogen component analysis system to measure the parahydrogen content.
Preferably, in the step (1), the vacuum insulation environment is a vacuum box, and the vacuum box is connected with a vacuum pump.
Preferably, in the step (1), the hydrogen inlet is connected with a high-purity hydrogen cylinder provided with a pressure reducing valve.
Preferably, in the step (1), the liquid nitrogen temperature zone is composed of a liquid nitrogen tank, the liquid nitrogen tank is connected with a liquid nitrogen filling opening, and the liquid nitrogen can be filled with refrigerants such as liquid neon, liquid hydrogen, liquid helium and the like.
Preferably, in the step (1), the cooling capacity of the pre-cooling heat exchanger I, the pre-cooling heat exchanger II and the para-hydrogen generation reactor and the reaction capacity are provided by a coolant in a liquid nitrogen tank, the coolant is preset to be liquid nitrogen, and the reaction temperature is 77K.
Preferably, in the step (2), the cooling capacity required by the heat sink is provided by the GM refrigerator, the heat sink and the cold head of the GM refrigerator are in contact heat conduction, a gap between the heat sink and the cold head of the GM refrigerator is coated with a heat conducting material, the heat sink is made of red copper, and the operating temperature is controlled by the GM refrigerator and ranges from 77K to 20K.
Preferably, in the step (2), during the adiabatic reaction in the heat sink device, an adiabatic reaction heat sink device is adopted, an outlet of the adiabatic reaction heat sink device is connected with the adiabatic reactor to be tested, and the adiabatic reactor to be tested is connected with the low-pressure side of the regenerative heat exchanger; when isothermal reaction is carried out in the heat sink device, the isothermal reaction heat sink device is adopted, and the position where the adiabatic reactor to be tested is installed is directly communicated by a section of straight pipe.
Preferably, in the step (2), the reacted parahydrogen is introduced into a parahydrogen component analysis system, the analysis principle is based on the physical property difference between orthohydrogen and parahydrogen, and optionally based on a sound velocity difference measurement method and a gas chromatograph analysis method, and the parahydrogen after analysis is uniformly discharged to the outdoor or is treated in a centralized way.
Compared with the prior art, the invention has the beneficial effects that:
1) the method can obtain initial hydrogen with different para-hydrogen contents by mixing the pre-reaction hydrogen and normal hydrogen; the reaction temperature zone is controllable by using a liquid nitrogen pre-cooling and GM refrigerator; different sets of space velocity conditions are realized by changing the inlet hydrogen flow and the catalyst ratio, so that the method is used for simulating the continuous conversion process in the actual liquid hydrogen production.
2) The invention realizes the switching between isothermal reaction and adiabatic reaction on one test platform by replacing the heat sink and changing the structure and the position of the reactor to be tested. The platform has complete functions, the scheme has clear feasibility, and the method can be used for the performance test of the catalyst and the performance test of a large-scale continuous converter of the para-hydrogen.
Drawings
FIG. 1 is a schematic diagram showing the structure of a method for testing the performance of an ortho-para hydrogen catalytic conversion reaction when an adiabatic reaction is carried out in an example of the present invention;
FIG. 2 is a schematic structural diagram of a method for testing the performance of an ortho-para hydrogen catalytic conversion reaction when an isothermal reaction is carried out in an example of the present invention;
in the figure, the device comprises a vacuum box 1, a vacuum pump 2, a vacuum pump 3, a liquid nitrogen tank 4, a sealing cover 5, a liquid nitrogen injection port 6, a nitrogen outlet 7, precooling heat exchangers I and II, precooling heat exchangers II and 9, a parahydrogen generation reactor 10, a hydrogen inlet 11, a flow controller 12, a mixing chamber 13, a heat regenerative heat exchanger 14, a GM refrigerator 15, an orthohydrogen component analysis interface 16, a heat insulation reaction heat sink 17, a heat insulation reactor to be tested 18, an isothermal reaction heat sink 19 and a flow controller II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a method for performing a performance test of a plurality of ortho-para hydrogen catalytic conversion reactions, the method comprising the steps of:
(1) the vacuum box 1 is connected with a vacuum pump 2 to establish a vacuum heat insulation environment, a liquid nitrogen temperature zone is arranged in the vacuum box 1 and consists of a liquid nitrogen tank 3, and a sealing cover 4 is fixed at the upper end of the liquid nitrogen tank 3. The liquid nitrogen tank 3 is respectively connected with a liquid nitrogen filling opening 5 and a liquid nitrogen gas outlet 6, refrigerants such as liquid neon, liquid hydrogen, liquid helium and the like can be filled in the liquid nitrogen, the cooling and reaction cold quantity of the pre-cooling heat exchanger I7, the pre-cooling heat exchanger II 8 and the parahydrogen generation reactor is provided by the refrigerants in the liquid nitrogen tank 3, the refrigerants are preset to be liquid nitrogen, and the reaction temperature is 77K.
The hydrogen inlet 10 is connected with a high-purity hydrogen bottle provided with a pressure reducing valve, the hydrogen inlet 10 is divided into a hydrogen reaction path I and a hydrogen cooling path II which are connected in parallel, the hydrogen reaction path I is sequentially communicated with a flow controller I11, a precooling heat exchanger I7 and a parahydrogen generating reactor 9, so that hydrogen is fully cooled in a liquid nitrogen temperature zone and performs a catalytic conversion reaction of the parahydrogen; the hydrogen cooling path II is sequentially communicated with a flow controller II 19 and a precooling heat exchanger II 8, so that hydrogen is fully cooled in a liquid nitrogen temperature zone; the two paths of hydrogen are fully mixed in the mixing chamber 12 to obtain the hydrogen serving as the raw material to be reacted, and the mixing chamber 12 is a stainless steel container filled with a net structure and has the function of obtaining the hydrogen serving as the raw material to be reacted, wherein the parahydrogen proportion of the hydrogen is adjustable; the above steps are carried out by changing the intake ratio of pre-reacted hydrogen (with the para-hydrogen content of 51%) and raw material hydrogen (with the para-hydrogen content of 25%) in a liquid nitrogen temperature zone (77K), and the raw material hydrogen with the initial para-hydrogen concentration of 25-51% is obtained after mixing.
(2) The hydrogen to be reacted enters the high-pressure side of the regenerative heat exchanger 13 through the connecting pipe to exchange heat so as to reduce the heat load of the GM refrigerator 14. After heat exchange is finished, raw material hydrogen is introduced into a heat sink inner passage as initial gas to be further cooled, then enters the low-pressure side of a regenerative heat exchanger 13 after reacting in a heat sink, is communicated with an ortho-para-hydrogen component analysis interface 15 after leaving the regenerative heat exchanger 13, is also connected with the ortho-para-hydrogen component analysis interface 15 through a connecting pipe, is connected with a para-hydrogen component analysis system for measuring the content of para-hydrogen, and the reacted para-hydrogen is introduced into the para-hydrogen component analysis system, wherein the analysis principle is based on the physical property difference of ortho-hydrogen and para-hydrogen, a sound velocity difference measurement method and a gas chromatograph analysis method can be selected, and the analyzed para-hydrogen is uniformly discharged outdoors or is subjected to centralized treatment;
the heat sink is internally provided with a heat exchange flow passage for cooling, the required cold quantity is provided by the GM refrigerator 14, the heat sink and the cold head of the GM refrigerator 14 are in contact heat conduction, a gap between the heat sink and the cold head is coated with a heat conduction material, the heat sink is made of red copper, and the working temperature is controlled by the GM refrigerator 14 and is 77-20K.
When the adiabatic reaction is carried out in the heat sink, an adiabatic reaction heat sink 16 is adopted, the outlet of the adiabatic reaction heat sink 16 is connected with the adiabatic reactor 17 to be tested, and the adiabatic reactor 17 to be tested is connected with the low-pressure side of the regenerative heat exchanger 13; the heat sink 16 is provided with a heat exchange hot runner inside for cooling hydrogen only, and the heat of hydrogen temperature reduction is contacted and exchanged by the cold head of the GM refrigerator 14. And leading the pipeline out from the hot sinking outlet, introducing the pipeline into the adiabatic reactor 17 to be tested, and wrapping the adiabatic reactor 17 to be tested by using an adiabatic material. In order to realize the switching between the isothermal reaction and the adiabatic reaction, the dismounting bolts are arranged at the outlet of the heat sink and the inlet of the adiabatic reactor to be tested 17 so as to realize the replacement of two heat sinks and the switching of the isothermal normal-secondary reactor to be tested.
When isothermal reaction is carried out in the heat sink, the isothermal reaction heat sink 18 is adopted, and the position where the adiabatic reactor to be tested is installed is directly communicated by a section of straight pipe, and the isothermal reaction heat sink can be disassembled and assembled through a detachable interface. On the basis of arranging the replacement hot runner in the isothermal reaction heat sink 18, a catalyst needs to be additionally filled as the isothermal positive and secondary hydrogen reactor to be tested. Different sets of curves of parahydrogen concentration after the reaction of space velocity can be obtained by changing the space velocity through changing the air inlet rate and the catalyst dosage ratio.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (8)
1. A method for performing performance testing of a plurality of ortho-para hydrogen catalytic conversion reactions, said method comprising the steps of:
(1) under a vacuum heat insulation environment, a hydrogen inlet is divided into a hydrogen reaction path I and a hydrogen cooling path II which are connected in parallel, the hydrogen reaction path I is sequentially communicated with a flow controller I, a precooling heat exchanger I and a parahydrogen generation reactor, so that hydrogen is fully cooled in a liquid nitrogen temperature zone and is subjected to catalytic conversion reaction of the parahydrogen; the hydrogen cooling path II is sequentially communicated with the flow controller II and the precooling heat exchanger II, so that hydrogen is fully cooled in a liquid nitrogen temperature zone; fully mixing two paths of hydrogen in a mixing chamber to obtain raw material hydrogen to be reacted;
(2) the hydrogen to be reacted enters the low-pressure side of the regenerative heat exchanger after passing through the high-pressure side of the regenerative heat exchanger and reacting in the heat sink, and then the hydrogen leaves the regenerative heat exchanger and is communicated with the analysis interface, and enters the parahydrogen component analysis system to measure the parahydrogen content.
2. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 1, wherein: in the step (1), the vacuum heat insulation environment is a vacuum box, and the vacuum box is connected with a vacuum pump.
3. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 1, wherein: in the step (1), the hydrogen inlet is connected with a high-purity hydrogen cylinder provided with a pressure reducing valve.
4. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 1, wherein: in the step (1), the liquid nitrogen temperature zone is composed of a liquid nitrogen tank, the liquid nitrogen tank is connected with a liquid nitrogen filling opening, and refrigerants such as liquid neon, liquid hydrogen, liquid helium and the like can be filled in the liquid nitrogen.
5. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 4, wherein: in the step (1), the cooling capacity of the precooling heat exchanger I, the precooling heat exchanger II and the parahydrogen generation reactor for cooling and reaction is provided by a refrigerant in a liquid nitrogen tank, the refrigerant is preset to be liquid nitrogen, and the reaction temperature is 77K.
6. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 1, wherein: in the step (2), the cold quantity required by the heat sink is provided by the GM refrigerator, the heat sink and the cold head of the GM refrigerator are in contact heat conduction, a heat conduction material is coated on a gap between the heat sink and the cold head of the GM refrigerator, the heat sink is made of red copper, and the working temperature is controlled by the GM refrigerator and is 77-20K.
7. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 1, wherein: in the step (2), an adiabatic reaction heat sink is adopted when an adiabatic reaction is carried out in the heat sink, an outlet of the adiabatic reaction heat sink is connected with the adiabatic reactor to be tested, and the adiabatic reactor to be tested is connected with the low-pressure side of the regenerative heat exchanger; when isothermal reaction is carried out in the heat sink device, the isothermal reaction heat sink device is adopted, and the position where the adiabatic reactor to be tested is installed is directly communicated by a section of straight pipe.
8. The method for testing the performance of a plurality of reactions for catalytic conversion of para-hydrogen according to claim 1, wherein: in the step (2), the reacted parahydrogen is introduced into a parahydrogen component analysis system, the analysis principle of the parahydrogen component analysis system is based on the physical property difference of orthohydrogen and parahydrogen, a sound velocity difference measurement method and a gas chromatograph analysis method can be selected, and the parahydrogen after analysis is uniformly discharged outdoors or is treated in a centralized manner.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325774A (en) * | 2022-06-23 | 2022-11-11 | 北京航天试验技术研究所 | Small-sized hydrogen liquefying device and method for segmented conversion of orthohydrogen and parahydrogen by adopting low-temperature cooler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206909025U (en) * | 2017-06-28 | 2018-01-19 | 天津宝润真空设备有限公司 | Electronic cooling equipment |
| CN111470472A (en) * | 2019-01-24 | 2020-07-31 | 中国科学院大连化学物理研究所 | But parahydrogen conversion equipment of self-checking |
| CN111992142A (en) * | 2020-08-07 | 2020-11-27 | 北京航天试验技术研究所 | Device for isothermal conversion reaction of para-hydrogen |
| CN112557577A (en) * | 2020-10-22 | 2021-03-26 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | System for testing dynamic performance of catalytic conversion of para-hydrogen |
| CN113030367A (en) * | 2021-02-08 | 2021-06-25 | 上海司氢科技有限公司 | Device for testing catalytic performance of catalyst for reaction of para-hydrogen |
| CN113606494A (en) * | 2021-07-29 | 2021-11-05 | 中国科学院合肥物质科学研究院 | Device for producing orthohydrogen and parahydrogen with different components |
-
2021
- 2021-11-11 CN CN202111332653.6A patent/CN114113472A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206909025U (en) * | 2017-06-28 | 2018-01-19 | 天津宝润真空设备有限公司 | Electronic cooling equipment |
| CN111470472A (en) * | 2019-01-24 | 2020-07-31 | 中国科学院大连化学物理研究所 | But parahydrogen conversion equipment of self-checking |
| CN111992142A (en) * | 2020-08-07 | 2020-11-27 | 北京航天试验技术研究所 | Device for isothermal conversion reaction of para-hydrogen |
| CN112557577A (en) * | 2020-10-22 | 2021-03-26 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | System for testing dynamic performance of catalytic conversion of para-hydrogen |
| CN113030367A (en) * | 2021-02-08 | 2021-06-25 | 上海司氢科技有限公司 | Device for testing catalytic performance of catalyst for reaction of para-hydrogen |
| CN113606494A (en) * | 2021-07-29 | 2021-11-05 | 中国科学院合肥物质科学研究院 | Device for producing orthohydrogen and parahydrogen with different components |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325774A (en) * | 2022-06-23 | 2022-11-11 | 北京航天试验技术研究所 | Small-sized hydrogen liquefying device and method for segmented conversion of orthohydrogen and parahydrogen by adopting low-temperature cooler |
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Application publication date: 20220301 |