142 results about "Hydrogen isotope" patented technology

The invention discloses a method for continuously and efficiently adsorbing and separating hydrogen isotopes. The hydrogen isotopes are separated by adopting a multi-tower variable-temperature variable-pressure device operated in a simulated moving bed operation mode. When the device runs, each adsorption tower needs to sequentially execute the following steps: 1, adsorption; 2, replacement; 3, heating; 4, vacuumizing and desorbing; 5, carrying out vacuum purging; 6, pressurizing and cooling; the operation mode of the simulated moving bed is that an adsorption tower is frequently, sequentially and synchronously moved along the gas flowing direction in the tower through all gas input and output ports, so that an adsorbent phase and a gas flowing phase in the tower form countercurrent flow, and the hydrogen isotope adsorption separation efficiency is enhanced. The invention relates to a technological process of cyclic adsorption, replacement, heating, vacuum desorption, pressurization and cooling, continuous and efficient hydrogen and isotope adsorption separation is realized, multi-tower serial adsorption and replacement are adopted in the process, and separation of hydrogen isotopes (such as H2 / D2) is enhanced; and the desorption efficiency of heavy components is improved by adopting a heating and vacuumizing depressurization coupling mode.

The invention provides a deep natural gas formation cause identification and quantitative evaluation method combined with methane cluster isotope composition, and belongs to the technical field of oil-gas exploration. Based on a method of combining methane cluster isotope values (delta13CH3D and delta12CH2D2) with stable hydrocarbon isotope values (delta13CCH4 and deltaDCH4), the relative contribution of each end member of an inorganic cause and a thermal cause to deep natural gas accumulation is quantitatively analyzed according to the cluster isotope values of two methane sources, namely Fischer-Tropsch inorganic synthesis and organic matter thermal cracking. According to the method, the multi-solution limitation caused by the fact that a traditional method only depends on the methane monomer isotope is overcome, the accuracy of deep natural gas cause type judgment is remarkably improved through the methane cluster isotope, and accurate quantitative evaluation of the proportion of different cause components in the mixed-source natural gas is achieved; and a more reliable basis is provided for exploration and development of deep natural gas resources.

The application discloses a testing device and testing method for hydrogen isotope permeation parameters of fusion reactor application materials, relates to material testing technology in the hydrogen field, and belongs to the field of material testing technology in the hydrogen field. The testing device for hydrogen isotope permeation parameters of fusion reactor application materials comprises the following: a membrane sample is installed in a membrane testing cavity to divide the membrane testing cavity into a gas inlet sub-cavity and a permeation sub-cavity; a gas inlet tank is selectively communicated with the gas inlet sub-cavity to supply testing gas; a collecting tank is selectively communicated with the permeation sub-cavity to collect outflowing gas; a vacuum pumping structure is used for pumping the gas inlet sub-cavity and the permeation sub-cavity; a heating structure is used for heating the gas inlet sub-cavity and the permeation sub-cavity; a high-resolution mass spectrometer is selectively communicated with the permeation sub-cavity, and gas selectively flows into the high-resolution mass spectrometer. The testing device for hydrogen isotope permeation parameters of fusion reactor application materials can control the gas pressure and temperature in the two sub-cavities respectively, thereby accurately determining the hydrogen isotope permeation parameters of the materials, and the precision is high, and the data resolution is excellent.

The invention discloses a device and a method for testing hydrogen isotope permeation parameters of a fusion reactor application material, and relates to a material testing technology in the field of hydrogen, and the device for testing the hydrogen isotope permeation parameters of the fusion reactor application material is characterized in that a membrane sample is mounted in a membrane testing cavity to divide the membrane testing cavity into a gas inlet sub-cavity and a permeation sub-cavity; the gas inlet tank is selectively communicated with the gas inlet sub-cavity so as to supply test gas, and the collecting tank is selectively communicated with the permeation sub-cavity so as to collect flowing-out gas; the vacuumizing structure is used for vacuumizing the air inlet sub-cavity and the permeation sub-cavity, and the heating structure is used for heating the air inlet sub-cavity and the permeation sub-cavity; the high-resolution mass spectrometer is selectively communicated with the permeation sub-cavity, and gas selectively flows into the high-resolution mass spectrometer. According to the device for testing the hydrogen isotope permeation parameters of the fusion reactor application material, the air pressure and the temperature in the two sub-cavities can be controlled respectively, so that the hydrogen isotope permeation parameters of the material can be accurately measured, the accuracy is high, and the data resolution is excellent.

The invention belongs to the technical field of tritium removal pump sets, and discloses a molecular pump set for evacuating a hydrogen isotope-containing super-large cavity, which comprises a stainless steel closed cavity and a super-large vacuum cavity, and is characterized in that a first tritium removal pump set and a second tritium removal pump set are respectively arranged in the stainless steel closed cavity through a fixing frame; the first tritium removal pump set and the second tritium removal pump set each comprise four tritium removal pumps, and the first tritium removal pump set and the second tritium removal pump set are integrally arranged in parallel and both communicate with the ultra-large vacuum cavity. According to the invention, the eight tritium removal pumps are mounted in the stainless steel chamber, and a connection mode of'parallel connection + series connection 'is creatively adopted, so that the requirement of continuous evacuation of the large chamber is met. In the initial stage, the eight tritium removal pumps operate in parallel so as to improve the overall pumping speed, the latter four tritium removal pumps serve as backing pumps, and the other four tritium removal pumps serve as main pumping pumps so as to improve the compression ratio of pumped tritium, increase the pressure of an exhaust port and improve the pumping efficiency of tritium.

The invention relates to a method for identifying natural gas causes by using methane carbon and hydrogen isotopes, and belongs to the technical field of oil-gas exploration and development. The method comprises the following steps: (1) acquiring methane carbon and hydrogen isotope data of a natural gas sample in a target area; (2) respectively carrying out thermal simulation experiments on the oil-type gas hydrocarbon source rock sample and the coal-formed gas hydrocarbon source rock sample, determining methane carbon isotope characteristics of the oil-type gas and the coal-formed gas, and judging typical oil-type gas and coal-formed gas in the natural gas sample in the step (1) by combining geologic characteristics; and (3) performing methane carbon and hydrogen isotope clustering analysis on the typical oil-type gas and the coal-formed gas, establishing a methane carbon and hydrogen isotope identification chart of the oil-type gas and the coal-formed gas, and identifying the natural gas cause according to the identification chart. The judgment method is higher in accuracy, and a feasible way is provided for judgment of natural gas reservoir causes in a high heat evolution stage and in regions with complex causes.

The invention discloses a process and a control method for continuous separation of hydrogen isotopes, and belongs to the technical field of hydrogen isotope separation. According to the process, a countercurrent continuous operation mode is adopted, an adsorption tower is divided into an adsorption area, a replacement area and a regeneration area, and reverse movement of an adsorbent and a material is simulated by periodically switching the material inlet and outlet positions of the adsorption tower; the adsorption towers and connecting pipelines are soaked in a constant-temperature coolant, and separation is realized by virtue of acting force difference of an adsorbent on hydrogen isotopes; according to the control method, digital control logic is adopted, the valve state is edited through a spreadsheet, software is controlled to analyze data, a PLC executes valve switching, and accurate regulation and control of the multi-tower operation state under different working conditions are achieved. The method provided by the invention solves the problems of high equipment investment and large energy consumption of a traditional separation method, has the advantages of high separation factor, high recovery rate and stable continuous operation, and is suitable for hydrogen isotope separation requirements of different feed gas proportions and different treatment capacities.

The invention comprises a catalyst device (1) for hydrogen isotope exchange analysis, wherein the catalyst device (1) consists of a catalyst carrier (10) and a catalyst material (20) applied to a surface (12) of the carrier (10), wherein at least the carrier surface (12) consists of an inorganic material and the catalyst material is sputtered or electrodeposited on at least a part of the surface (12) of the carrier (10). The invention further pertains to a sample vessel (100) for hydrogen isotope exchange analysis, wherein the sample vessel (100) contains one or more catalyst devices (1) according to the invention, wherein a maximum outer diameter (D) of the catalyst device (1) is smaller than a minimum inner diameter (101) of an opening of the sample vessel (100) or of the sample vessel (100) itself. The invention also foresees a method of hydrogen isotope analysis employing the sample vessel (100) and the use of the catalyst device (1) in a method of hydrogen isotope analysis.

The invention discloses an iron phosphide catalyst for separating hydrogen isotopes from PEM electrolyzed water and a preparation method of the iron phosphide catalyst, and the preparation method of the iron phosphide catalyst comprises the following steps: step 1, adding ferric salt and carbon black into a solvent according to a certain proportion, dispersing, and evaporating the solvent to obtain a uniform mixture of the ferric salt and the carbon black; 2, heating the mixture obtained in the step 1 at a high temperature, and introducing hydrogen-argon mixed gas to obtain an intermediate product Fe / C; and 3, carrying out high-temperature phosphorization on Fe / C and red phosphorus under the protection of argon to obtain the iron phosphide catalyst. The non-noble metal iron phosphide catalyst is synthesized to replace a traditional noble metal platinum carbon catalyst, the cost is reduced, and the hydrogen isotope separation factor is remarkably increased to 6-8; the cathode iron phosphide catalyst disclosed by the invention is high in stability, the performance of the cathode iron phosphide catalyst is almost not attenuated after long-time electrolytic reaction, an electric pile can stably run for about more than 2000 hours under the condition that the current density is 0.5 A / cm < 2 >, and the cathode iron phosphide catalyst has a very high industrial application value.

The invention relates to a generation method, device, equipment and medium of a natural gas cause identification chart, in particular to the technical field of natural gas exploration, and the generation method comprises the following steps: performing a hydrocarbon generation simulation test on a hydrocarbon source rock sample to obtain gaseous analysis gas; performing natural gas composition analysis, natural gas C6-C8 light hydrocarbon composition analysis and natural gas C1-C5 carbon isotope and hydrogen isotope analysis on gaseous analysis gas, and drawing a gas component-gas component relational graph, a light hydrocarbon component-light hydrocarbon component relational graph and a hydrocarbon gas carbon isotope-carbon isotope relational graph of different closed systems; and screening parameters with differences to establish a natural gas cause identification chart of the high-over mature multi-closed system. According to the generation method provided by the invention, a hydrocarbon generation simulation experiment and oil-gas product chemical analysis are carried out, a multi-closed system natural gas cause identification chart is established, and theoretical support is provided for cover layer closure evaluation in regional oil-gas exploration, regional oil-gas resource evaluation and oil-gas-containing distant view and exploration field evaluation.

To provide a hydrogen isotope separation system capable of achieving stabilization of operation.SOLUTION: A hydrogen isotope separation system 10 comprises an electrolyzer 12, a separator 14, a coupler 15, a circulation flow passage 10e, a pump 18, and a control device 21 which controls the pump 18. The electrolyzer 12 performs electrolysis upon water including heavy water. The separator 14 separates a hydrogen isotope which is discharged from the electrolyzer 12. The coupler 15 generates power with light hydrogen which is discharged from the separator 14. The circulation flow passage 10e connects an anode supply path 10a and an anode discharge path 10c which are provided with respect to an anode 15b of the coupler 15 to which the light hydrogen is supplied while detouring the coupler 15. The pump 18 circulates fluid from the anode discharge path 10c toward the anode supply path 10a in the circulation flow passage 10e.SELECTED DRAWING: Figure 1

This application relates to a composite catalytic material, a preparation method thereof, an electrode, its application, and a reactor for electrocatalytic hydrogen isotope separation. The composite catalytic material comprises a substrate, a nickel metal organic framework material layer, ruthenium particles, and a graphene layer. The nickel metal organic framework material layer is disposed on the surface of the substrate, the graphene layer is disposed on the surface of the nickel metal organic framework material layer away from the substrate, and the ruthenium particles are disposed between the nickel metal organic framework material layer and the graphene layer. This composite catalytic material is fabricated into an electrode for electrocatalytic hydrogen isotope separation, effectively regulating the diffusion rate of hydrogen and deuterium in a solution, thereby improving the efficiency of hydrogen-deuterium separation.

The application discloses application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, the carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, the active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and structure of the hydrogen evolution and deuterium evolution catalyst. The osmium metal is loaded on the titanium carbide base, the hydrogen evolution selectivity is improved and the energy consumption is reduced through strong mutual action of the metal-carrier.

The invention discloses an application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, a carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, an active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and the structure of the hydrogen and deuterium evolution catalyst. Osmium metal is loaded on a titanium carbide substrate, and hydrogen evolution selectivity is improved and energy consumption is reduced through strong interaction of metal and a carrier.

The invention discloses preparation of a graphene-doped modified reverse osmosis membrane and a method for preparing deuterium-depleted water by using the graphene-doped modified reverse osmosis membrane, and particularly relates to the technical field of preparation of deuterium-depleted water. An aromatic polyamide separation layer containing functionalized graphene oxide is constructed on the surface of a polysulfone supporting layer through an interfacial polymerization method to form a conjugated large pi bond network; a 20-30MPa extra-high voltage driving process is combined, so that the deuterium and hydrogen isotope separation efficiency is remarkably improved. The single-stage separation coefficient of the reverse osmosis membrane reaches 1.8-2.0, the deuterium content of produced water is smaller than or equal to 50 ppm, and the reverse osmosis membrane has high pollution resistance, low energy consumption and long service life and is suitable for preparing high-purity deuterium-depleted water in the fields of medical treatment, semiconductors and nuclear industry.

The invention relates to a gaseous hydrogen isotope separation device and system and a gaseous hydrogen isotope separation method, and belongs to the technical field of hydrogen isotope separation. The gaseous hydrogen isotope separation device comprises an anode gas diffusion layer, an anode catalyst layer, a proton exchange membrane, a cathode catalyst layer and a cathode gas diffusion layer which are sequentially stacked; the anode gas diffusion layer and the anode catalyst layer are positioned in an anode region of the gaseous hydrogen isotope separation device, and the cathode catalyst layer and the cathode gas diffusion layer are positioned in a cathode region of the gaseous hydrogen isotope separation device; the gas inlet and the first gas outlet are formed in the anode region; the second gas outlet is formed in the cathode region; the gas inlet is used for being communicated with hydrogen isotope mixed gas; the anode region is connected with the anode of a power supply, and the cathode region is connected with the cathode of the power supply. According to the device, the hydrogen isotope mixed gas can be rapidly separated, the separation factor of the gaseous hydrogen isotope is high, and the separation effect is good.

A method for forming a semiconductor structure includes: providing a substrate; forming an initial buried layer within the substrate, the initial buried layer containing doped ions; and annealing the initial buried layer to form a buried layer, wherein the annealing gas includes an inert gas and hydrogen, or an inert gas and a hydrogen isotope gas. Since the annealing gas does not contain oxygen, it does not cause excessive consumption of the initial buried layer, thus preventing significant surface depressions. Furthermore, silicon substrates have dangling bonds on their surface; hydrogen annealing allows hydrogen atoms to enter the silicon crystal and bind to these dangling bonds, thereby eliminating interface states. Compared to elemental hydrogen, hydrogen isotopes have higher bond energies with silicon, making them less prone to breakage and thus better eliminating interface states. Moreover, high-temperature hydrogen or hydrogen isotope gas annealing can also eliminate surface and internal voids and defects in the substrate, improving surface roughness.

The invention discloses an alloy for hydrogen isotope gas storage and a preparation method thereof. The chemical formula of the hydrogen isotope gas storage alloy is ZrMn2-x, wherein x is more than or equal to 0.25 and less than or equal to 0.5. Compared with the prior art, the alloy has the following beneficial effects: 1, the alloy prepared by the invention has lower hydrogen absorption / desorption isotope equilibrium pressure, and when the alloy is used for tritium gas storage, the quantity of tritium remaining in a gas phase in the storage process can be greatly reduced, so that helium generated by decay of tritium remaining in the gas phase is reduced to the greatest extent; and 2, the prepared alloy does not contain catalytic active elements, and generation of tritiated methane gas in the tritium release process of the tritium storage alloy is avoided, so that the chemical purity of tritium gas is improved. And 3, the main element of the alloy is the low-cost Mn element, so that the cost of the hydrogen isotope gas storage alloy can be greatly reduced.

In view of the foregoing, exemplary embodiments provide a method of manufacturing a semiconductor device and a substrate processing apparatus capable of efficiently performing radical oxidation.SOLUTION: According to one embodiment, a method for manufacturing a semiconductor device is provided. The method of manufacturing a semiconductor device includes performing radical oxidation on a first film using plasma generated by a processing gas containing a gas of an isotope of hydrogen.SELECTED DRAWING: Figure 1

To raise a separation factor α and improve hydrogen isotope separation performance.SOLUTION: A separation system includes: a fuel battery cell having an anode passage and a cathode passage including a polymer electrolyte and a catalyst, and sandwiching a polymer electrolyte; raw material fluid supply means connected to an anode supply passage and supplying a raw material fluid containing a hydrogen isotope; cathode gas supply means connected to a cathode supply passage and supplying a fluid containing inactive gas; hydrogen concentration acquisition means for acquiring a hydrogen concentration of a fluid flowing in the anode supply passage and an anode discharge passage; a control unit for calculating as α=Tb Ha / Ta Hb, a separation factor α from a concentration ratio of a hydrogen isotope Tb to light hydrogen Hb of the anode supply passage, and a concentration ratio of a hydrogen isotope Ta to light hydrogen Ha of the anode discharge passage; and adjustment means for adjusting the separation factor α by being controlled by the control unit.SELECTED DRAWING: Figure 1

The present invention proposes a method for determining the stable isotope ratio of non-exchangeable hydrogen sites of glycerol in edible oils and fats, belonging to the field of stable isotope analysis technology. The method comprises the following steps: a) preparing a preliminary glycerol sample; b) determining the stable hydrogen isotope ratio of glycerol in the preliminary glycerol sample using a gas chromatography-pyrolysis-stable isotope ratio mass spectrometer; c) selecting glycerol with a known stable isotope ratio of non-exchangeable hydrogen sites as a working standard substance, processing according to step a), and determining according to step b) to obtain the stable hydrogen isotope ratio of the glycerol working standard substance; and calculating the stable isotope ratio of the non-exchangeable hydrogen sites of glycerol in the edible oil to be tested by comparing the measurement result of the stable hydrogen isotope ratio of the glycerol working standard substance with the known stable isotope ratio of the non-exchangeable hydrogen sites of the glycerol working standard substance. The method is rapid and accurate, providing a new analytical method for adulteration detection and authenticity control of oils and fats.

The application discloses a method and device for preparing elements on demand by means of controllable nuclear fusion-nuclear transmutation with deuterium (hydrogen isotope) as the only raw material, belonging to the technical field of controllable nuclear physics and element synthesis, and suitable for laboratory small-batch research scenarios. The core is that under controllable conditions in the laboratory, 10-15 MeV high-energy neutrons are generated by deuterium nuclear fusion, and low-radioactivity / stable target materials are directionally bombarded, and stable products such as noble metals and rare earth elements are directionally prepared through nuclear transmutation and decay (1-50g per single preparation), the reaction by-products can be recycled, the fusion energy recovery rate is greater than or equal to 30%, and the external power supply accounts for less than or equal to 70%, which does not constitute unlimited energy output. The total floor area of the device is less than or equal to 10 m2, and the total power is less than or equal to 200 kW, and the device has the advantages of wide raw material sources, environmental friendliness, strong controllability and the like, and can be applied to the fields of noble metal preparation, new energy material synthesis, harmless treatment simulation of nuclear waste and the like, and fills the technical gap of global laboratory-level deuterium-based element preparation on demand.

The present invention discloses a monitoring method for an in-situ site remediation process, which uses the ratio of the heavy isotope and light isotope of the C element and the ratio of the heavy isotope and light isotope of the H element of the target pollutant as the coordinate axis, draws a C-H double isotope ratio difference analysis diagram by using the characteristic interval intercepted by a specific linear formula, and then draws the variation of the value obtained by sampling during the remediation process compared with the benchmark data in the C-H double isotope ratio difference analysis diagram, and monitors the in-situ site remediation effect according to its positional relationship with the characteristic interval. The present invention tracks the change of the carbon and hydrogen isotope abundance ratio of the target organic compound over time during the physical / chemical / biological process, thereby determining the main mechanism of action of the organic compound removal and degradation, and monitoring the remediation effect of the in-situ site remediation process.

The invention provides a system for producing deuterium-rich water by combining chemical exchange and liquid ammonia rectification, which comprises an ammonia A2 storage unit, an ammonia water exchange device, a liquid ammonia rectification device and a water ammonia exchange device, and three processes of ammonia water exchange, liquid ammonia rectification and water ammonia exchange are coupled and connected in series to construct a complete hydrogen isotope (deuterium) enrichment path. According to the path, deuterium is efficiently transferred from high-boiling-point raw water to a low-boiling-point ammonia medium through ammonia water exchange, low-energy-consumption and high-magnification deuterium enrichment is achieved in an N-stage rectifying tower through liquid ammonia rectification by means of the low-boiling-point characteristic of liquid ammonia, and finally high-deuteration-degree ammonia is efficiently converted back to high-deuteration-degree deuterium-enriched water through reverse water ammonia exchange. Cooperative transmission of the material flow and the isotope flow is obviously optimized, and directional and step-by-step enrichment of deuterium in the material flow process is achieved.

The present application particularly relates to a method for producing helium-3 from heavy water in a heavy water reactor, comprising: step 1, subjecting the heavy water in a moderator system of a heavy water reactor unit to negative pressure rectification to obtain concentrated high-tritium heavy water; step 2, subjecting the concentrated high-tritium heavy water in step 1 to beta decay to produce helium-3 raw gas; and step 3, subjecting the helium-3 raw gas in step 2 to active carbon adsorption, helium-argon separation and hydrogen isotope gas adsorption to obtain helium-3. The method for producing helium-3 from heavy water in a heavy water reactor avoids technical difficulties and high costs of helium-3 / helium-4 isotope separation, and has high technical maturity and good economy.

This invention discloses a hydrogen isotope permeation research device based on radio frequency plasma, belonging to the field of hydrogen isotope permeation research technology. The device includes a quartz tube, one end of which is connected to an inlet unit, and the other end has a fixed flange with a gas venting channel. A permeation tube is detachably and sealed to the fixed flange, and the inner cavity of the permeation tube is connected to a permeation flux detection unit. A tubular furnace corresponding to the permeation tube and a coupling coil electrically connected to a radio frequency generator are fitted around the quartz tube. The device also includes an in-situ reverse cleaning unit that can replace the permeation flux detection unit and a plasma diagnostic unit that can replace the permeation tube. This invention uses a radio frequency plasma source, which has high plasma density and a wide parameter adjustment range, effectively processing combined hydrogen isotopes. The in-situ reverse cleaning unit improves the permeation flux and operational stability. The modular structure provides strong engineering scalability and can support the systematic research and engineering development of ultrapermeation pumps.

This invention discloses a method for accurately tracing geological hydrogen migration, belonging to the field of geological hydrogen exploration and migration tracing technology. The invention involves preparing stable hydrogen isotopes and radioactive tritium tracers with specific geochemical fingerprints and injecting them into target geological units; deploying a three-dimensional monitoring network including sensor arrays and automatic samplers to collect hydrogen concentration data and gas samples in real time; laboratory analysis to determine hydrogen isotope composition and rare gas concentrations, using an N2-He-Ar ternary diagram to identify gas sources and eliminate interference; integrating data and performing numerical simulations using migration control equations coupled with isotope fractionation effects, optimizing parameters through inversion algorithms; and generating a three-dimensional visualization map of hydrogen migration paths and a quantitative report based on the inversion results. This invention achieves a breakthrough in geological hydrogen migration from qualitative detection to quantitative tracking, significantly improving the reliability and accuracy of tracing, enabling real-time dynamic capture of the migration process, and providing precise decision-making basis for hydrogen exploration.

To provide a separation system where carrier gas supplied to a cathode passage becomes reusable.SOLUTION: A separation system comprises: an electrolytic cell with a polymer electrolyte, a catalyst, an anode passage and a cathode passage; raw material fluid supply means which is connected to an anode supply passage to supply raw material fluid including a hydrogen isotope thereto; cathode gas supply means which is connected to a cathode supply passage to supply the sixtieth fluid thereto; a cathode side concentration separator which is connected to a cathode discharge channel; a cathode off-gas circulation flow passage which returns the sixty-first fluid with inactive gas separated by the cathode side concentration separator to the cathode supply passage; a compressor which is arranged in the cathode off-gas circulation flow passage; first pressure detection means which is arranged in the cathode supply passage between a connection part connected with the cathode off-gas circulation flow passage in the cathode supply passage and the electrolytic cell; and a controller which increases, when the detection value of the first pressure detection means is higher than a first prescribed value, rotation number of the compressor to be higher than a prescribed rotation number.SELECTED DRAWING: Figure 1

The invention provides an air-stable metal organic framework as well as a preparation method and application thereof. The metal organic framework with stable air disclosed by the invention is CuI2 (BBTA). According to the novel MOFs material CuI2 (BBTA), a part of Cu (I) is connected with four N atoms, unsaturated points around the Cu (I) are reduced, and the air stability of the material is improved. The material disclosed by the invention is stable in air, and Cu (I) can be conveniently kept from being oxidized in a preparation process, a transfer process and a charging process, so that a hydrogen isotope gas separation effect is better exerted.

A process for separating hydrogen isotope-based compounds is provided. The process comprises preparing a feed stream for a distillation process, feeding the feed stream into a column of a distillation unit, recovering a first fraction from the distillation unit, and recovering a second fraction from the distillation unit. The feed stream comprises hydrogen fluoride, deuterium fluoride, and tritium fluoride. The column is configured to operate at a pressure in a range of 0.1 atmospheres to 2 atmospheres. The first fraction is a TF-rich fraction and the second fraction is a DF-rich fraction. A nuclear fuel composition produced with the process for separating hydrogen isotope-based compounds, a process for producing a fuel from a product stream of a fusion reactor are also provided, and a distillation unit for fractionating fluorides of hydrogen isotopes of a feed stream are also provided.