CN115364631B - Device for separating and purifying hydrogen isotope gas from mixed gas of helium and hydrogen isotope gas using helium as carrier - Google Patents

Device for separating and purifying hydrogen isotope gas from mixed gas of helium and hydrogen isotope gas using helium as carrier Download PDF

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Publication number
CN115364631B
CN115364631B CN202211010149.9A CN202211010149A CN115364631B CN 115364631 B CN115364631 B CN 115364631B CN 202211010149 A CN202211010149 A CN 202211010149A CN 115364631 B CN115364631 B CN 115364631B
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bed
gas
hydrogen
hydrogen isotope
purifier
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CN115364631A (en
Inventor
占勤
杨洪广
丁卫东
连旭东
李语奇
郭炜
李卓希
杨丽玲
徐鹏程
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China Institute of Atomic of Energy
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China Institute of Atomic of Energy
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D59/00Separation of different isotopes of the same chemical element
    • B01D59/10Separation by diffusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/10Single element gases other than halogens
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/10Nuclear fusion reactors

Abstract

An embodiment of the present application provides an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium gas and the hydrogen isotope gas using helium gas as a carrier, comprising: a separation bed and a purifier; wherein the separation bed is configured to absorb the hydrogen isotope gas from the mixed gas and release the absorbed hydrogen isotope gas to the purifier, and the hydrogen isotope gas released by the separation bed contains impurities formed by other gases than the hydrogen isotope gas in the mixed gas; the purifier is configured to receive the hydrogen isotope gas released by the separation bed and the impurity, the purifier being configured to allow the hydrogen isotope gas to pass therethrough but not the impurity; the separation bed is also configured to receive the hydrogen isotope gas and impurities that do not pass through the purifier.

Description

Device for separating and purifying hydrogen isotope gas from mixed gas of helium and hydrogen isotope gas using helium as carrier
Technical Field
The embodiment of the application relates to the field of gas separation, in particular to a device for separating and purifying hydrogen isotope gas from mixed gas of helium taking helium as a carrier and the hydrogen isotope gas.
Background
Tritium is an important raw material for fusion stacks, in which tritium is typically produced using a tritium breeder cladding module. Tritium produced by tritium breeder cladding modules is typically carried out by a helium carrier gas containing a quantity of hydrogen. Tritium carried by helium carrier gas has lower purity in helium gas, and high purity tritium can be obtained through separation and purification.
Therefore, there is a need for an apparatus capable of separating and purifying a hydrogen isotope gas from a mixed gas of helium gas and a hydrogen isotope gas using helium gas as a carrier.
Disclosure of Invention
To solve at least one of the above problems, an embodiment of the present application provides an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium gas and the hydrogen isotope gas using helium gas as a carrier, comprising: a separation bed and a purifier; wherein the separation bed is configured to absorb the hydrogen isotope gas from the mixed gas and release the absorbed hydrogen isotope gas to the purifier, and the hydrogen isotope gas released by the separation bed contains impurities formed by other gases than the hydrogen isotope gas in the mixed gas; the purifier is configured to receive the hydrogen isotope gas released by the separation bed and the impurity, the purifier being configured to allow the hydrogen isotope gas to pass therethrough but not the impurity; the separation bed is also configured to receive the hydrogen isotope gas and impurities that do not pass through the purifier.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium and the hydrogen isotope gas using helium as a carrier in accordance with an embodiment of the present application;
FIG. 2 is a schematic view of an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium and a hydrogen isotope gas using helium as a carrier in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium and a hydrogen isotope gas using helium as a carrier in accordance with an embodiment of the present application;
FIG. 4 is a schematic view of an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium and a hydrogen isotope gas using helium as a carrier in accordance with an embodiment of the present application;
fig. 5 is a schematic view of an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium and the hydrogen isotope gas using helium as a carrier in accordance with an embodiment of the present application.
It should be noted that the drawings are not necessarily to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present application belongs. If, throughout, reference is made to "first," "second," etc., the description of "first," "second," etc., is used merely for distinguishing between similar objects and not for understanding as indicating or implying a relative importance, order, or implicitly indicating the number of technical features indicated, it being understood that the data of "first," "second," etc., may be interchanged where appropriate. If "and/or" is present throughout, it is meant to include three side-by-side schemes, for example, "A and/or B" including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. Furthermore, for ease of description, spatially relative terms, such as "above," "below," "top," "bottom," and the like, may be used herein merely to describe the spatial positional relationship of one device or feature to another device or feature as illustrated in the figures, and should be understood to encompass different orientations in use or operation in addition to the orientation depicted in the figures.
Referring to fig. 1, an embodiment of the present application provides an apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium gas and the hydrogen isotope gas using helium gas as a carrier, comprising: a separation bed 10 and a purifier 20; wherein the separation bed 10 is configured to absorb the hydrogen isotope gas from the mixed gas and release the absorbed hydrogen isotope gas to the purifier 20, and the hydrogen isotope gas released from the separation bed 10 contains impurities formed by other gases than the hydrogen isotope gas in the mixed gas; the purifier 20 is configured to receive the hydrogen isotope gas released from the separation bed 10 and the impurities, and the purifier 20 is configured to allow the hydrogen isotope gas to pass therethrough but not allow the impurities to pass therethrough; the separation bed 10 is also configured to receive hydrogen isotope gas and impurities that do not pass through the purifier 20.
In the embodiment shown in fig. 1, the mixed gas flows into the separation bed 10 from the a direction and flows out of the separation bed 10 from the B direction, tritium at a low concentration is trapped from the mixed gas by the separation bed 10, and the trapped tritium is temporarily stored in the separation bed 10, so that separation of the hydrogen isotope gas and helium is achieved, but a small amount of helium remains in the separation bed 10, which acts as impurities to affect the purity of the hydrogen isotope gas, and in order to further increase the purity of the hydrogen isotope gas, the tritium stored in the separation bed 10 is released in the C direction to the purifier 20 that allows the hydrogen isotope gas but does not allow the helium to pass through by the subsequent desorption operation (e.g., heating of the separation bed 10), and the hydrogen isotope gas and helium are further separated by the purifier 20, so that the purity of the hydrogen isotope gas is increased. Since the purifier 20 can only pass a limited amount of hydrogen isotope gas at a time, the hydrogen isotope gas cannot always pass through once filtration, so that the hydrogen isotope gas which does not pass through the purifier 20 and impurities formed by helium gas are re-conveyed back to the separation bed 10 in the direction D so as to filter the hydrogen isotope gas and impurities for the next time; the hydrogen isotope gas passing through the purifier 20 along the E direction is separated and purified hydrogen isotope gas, and has higher purity, and can be used in the subsequent concentration step. The above gas circulation is repeated until the concentration of the hydrogen isotope gas is lower than a certain value, at which time it is difficult to separate the hydrogen isotope gas from the mixed gas of the hydrogen isotope gas and helium gas, and the gas circulation of the gas between the separation bed 10 and the purifier 20 may be stopped, so that the separation bed 10 may restart capturing the hydrogen isotope gas in the mixed gas of the hydrogen isotope gas and helium gas.
In a preferred embodiment of the present application, the separation bed 10 is a zirconium cobalt-based alloy bed and the purifier 20 is a palladium membrane module. The zirconium cobalt alloy bed can efficiently collect hydrogen isotope gas from mixed gas of hydrogen isotope gas and helium gas for a long time under room temperature condition, and the palladium membrane component can selectively pass the hydrogen isotope gas and prevent the helium gas from passing. In the embodiment of the application, the hydrogen isotope gas is trapped by the zirconium-cobalt alloy bed, so that the high-concentration hydrogen isotope gas can be desorbed, the concentration of helium in the gas reaching the palladium membrane component is reduced, and the phenomenon that the helium coats the palladium membrane in the palladium membrane component to generate concentration polarization and influence the hydrogen permeation rate of the palladium membrane component is avoided when the helium concentration is too high.
Referring to fig. 2, in a preferred embodiment of the application, the apparatus further comprises a hydrogen storage bed 30, the hydrogen storage bed 30 being arranged to receive and store the hydrogen isotope gas passing through the purifier 20. The hydrogen storage bed 30 is connected to the purifier 20 through a pipe, the hydrogen storage bed 30 receives the hydrogen isotope gas passing through the purifier 20 and stores the hydrogen isotope gas in the hydrogen storage bed 30, and the hydrogen isotope gas stored in the hydrogen storage bed 30 can be used in a subsequent tritium concentration step.
In a preferred embodiment of the present application, the hydrogen storage bed 30 is configured to store the hydrogen isotope gas passing through the purifier 20 in a non-gaseous form in the hydrogen storage bed 30. The hydrogen storage bed 30 can be internally provided with a substance capable of absorbing hydrogen isotope gas and converting tritium into a non-gaseous state, and the gas pressure of the palladium membrane component on one side of the hydrogen storage bed 30 can be reduced by converting the hydrogen isotope gas into the non-gaseous state, so that power is provided for the tritium to pass through the palladium membrane, and the tritium can pass through the palladium membrane component conveniently.
Referring to fig. 3, in a preferred embodiment of the present application, the hydrogen storage beds comprise a first hydrogen storage bed 301 and a second hydrogen storage bed 302; the first hydrogen storage bed 301 absorbs hydrogen isotope gas at a rate greater than the second hydrogen storage bed 302 absorbs hydrogen isotope gas; the desorption rate of the first hydrogen storage bed 301 is greater than the desorption rate of the second hydrogen storage bed 302; the room temperature hydrogen adsorption pressure of the first hydrogen storage bed 301 is greater than the room temperature hydrogen adsorption pressure of the second hydrogen storage bed 302. The lower the room temperature hydrogen adsorption pressure is, the lower the room temperature equilibrium pressure is, the hydrogen can be adsorbed under the smaller hydrogen pressure, a certain amount of hydrogen isotope gas is stored in the separation bed 10, the separation bed 10 can release more hydrogen isotope gas when the desorption starts, the hydrogen isotope gas desorbed by the separation bed 10 gradually decreases along with the desorption, the first hydrogen storage bed 301 and the second hydrogen storage bed 302 are arranged according to the change rule of the hydrogen isotope gas amount when the desorption starts, the speed of the hydrogen isotope gas passing through the purifier 20 is higher when the desorption starts, and the first hydrogen storage bed 301 with the higher speed of the hydrogen isotope gas can be used for absorbing the hydrogen isotope gas passing through the purifier 20 so as to maintain the pressure difference at two sides of the purifier 20 and ensure the filtering speed of the purifier 20; at the later stage of desorption of the separation bed 10, the concentration of the hydrogen isotope gas in the whole pipeline is low, the speed of the hydrogen isotope gas passing through the purifier 20 is low, the hydrogen pressure of the hydrogen isotope gas passing through the purifier 20 is low, and at this time, the second hydrogen storage bed 302 with low speed of absorbing the hydrogen isotope gas and low adsorption equilibrium pressure can be used for absorbing the hydrogen isotope gas passing through the purifier 20.
In a preferred embodiment of the present application, the first hydrogen storage bed 301 may be a lanthanum nickel aluminum manganese alloy bed, which has a fast hydrogen isotope gas absorption rate, and a low gas desorption temperature, and may be used in the middle before desorption; the second hydrogen storage bed 302 may be a zirconium cobalt alloy bed having a lower hydrogen isotope gas absorption rate than a lanthanum nickel aluminum manganese alloy bed, but a lower room temperature adsorption hydrogen pressure than a lanthanum nickel aluminum manganese alloy bed, and may be used when the hydrogen isotope gas concentration is lower in the later stage of desorption.
In the preferred embodiment of the present application, the first hydrogen storage bed 301 and the second hydrogen storage bed 302 are communicated through a pipeline, and a valve is arranged on the pipeline and is used for controlling the on-off of the pipeline. When the separated and purified hydrogen isotope gas needs to be concentrated, the hydrogen isotope gas stored in the first hydrogen storage bed 301 and the second hydrogen storage bed 302 needs to be desorbed in the F direction to the hydrogen isotope gas concentration device. However, in the later stage of desorption, the pressure of the hydrogen isotope gas in the hydrogen storage bed is small, and it is difficult to introduce the hydrogen isotope gas concentration device from the hydrogen storage bed, so that the gas in the first hydrogen storage bed 301 can be desorbed into the second hydrogen storage bed 302 by communicating the first hydrogen storage bed 301 with the second hydrogen storage bed 302 because the room temperature adsorption equilibrium in the second hydrogen storage bed 302 is low, thereby collecting the residual hydrogen isotope gas in the two hydrogen storage beds into one hydrogen storage bed. The bed body of the second hydrogen storage bed 302 can be set smaller than the bed body of the first hydrogen storage bed 301, so that the temperature rising and falling speed of the second hydrogen storage bed 302 can be fast, and the transfer speed is increased. The retention of the hydrogen isotope gas in the hydrogen storage bed is reduced, and meanwhile, the desorption pressure of the hydrogen isotope gas is increased, so that the hydrogen isotope gas is introduced into the hydrogen isotope gas concentration device from the hydrogen storage bed, and less hydrogen isotope gas remains in the hydrogen storage bed.
Referring to fig. 4, in a preferred embodiment of the present application, the separation bed 10 comprises a first separation bed 101 and a second separation bed 102; the first separation bed 101 and the second separation bed 102 are disposed in parallel, and the first separation bed 101 and the second separation bed 102 are disposed to alternately absorb the hydrogen isotope gas from the mixed gas and alternately release the absorbed hydrogen isotope gas to the purifier 20. The separation bed 10 has a certain hydrogen isotope gas storage capacity, and when the separation bed 10 is saturated in adsorption of the hydrogen isotope gas, the separation bed 10 is difficult to absorb the hydrogen isotope gas from the mixed gas, and at this time, the connection between the separation bed 10 and the mixed gas circulation apparatus can be cut off, and the hydrogen isotope gas absorbed in the separation bed 10 can be desorbed into the purifier 20 for purification. By providing the two first separation beds 101 and the second separation bed 102 in parallel, it is possible to desorb the hydrogen isotope gas that has been absorbed in the second separation bed 102 when the first separation bed 101 absorbs the hydrogen isotope gas from the mixed gas circulation apparatus; or the continuous operation of the hydrogen isotope gas separation and purification apparatus may be realized by desorbing the hydrogen isotope gas that has been absorbed in the first separation bed 101 while the second separation bed 102 absorbs the hydrogen isotope gas from the mixed gas circulation apparatus. In certain embodiments, by providing the bed volumes of the first separation bed 101 and the second separation bed 102, the adsorption time can be made more than twice the desorption time to ensure continuous operation of the process.
Referring to fig. 5, in a preferred embodiment of the present application, the apparatus further comprises a flow controller 40, the flow controller 40 being arranged such that the hydrogen isotope gas mixed with impurities that has not passed through the purifier 20 is received by the separation bed 10 through the flow controller 40. The flow controller 40 may control the velocity of the gas passing through the flow controller 40, and the flow controller 40 may be disposed between the purifier 20 and the separation bed 10 in the direction of the gas flow, i.e., the gas that does not pass through the purifier 20 but flows out of the purifier 20 reaches the separation bed 10 through the flow controller 40, and the pressure upstream of the purifier 20 may be controlled using the flow controller 40 to power the hydrogen isotope gas passing through the purifier 20, so that the hydrogen isotope gas more easily passes through the purifier 20.
In a preferred embodiment of the application, the device further comprises a first pressure gauge 51 and a second pressure gauge 52; the first pressure gauge 51 is provided after the purifier 20 and before the flow controller 40 in the gas flow direction for measuring the pressure of the hydrogen isotope gas mixed with impurities that has not passed through the purifier 20; the second pressure gauge 52 is provided after the purifier 20 and before the hydrogen storage bed in the gas flow direction for measuring the pressure of the hydrogen isotope gas passing through the purifier 20.
The first pressure gauge 51 is disposed after the purifier 20 and before the flow controller 40 in the gas flow direction, that is, the first pressure gauge 51 is disposed between the purifier 20 and the flow controller 40, and the pressure measured by the first pressure gauge 51 may be used as a basis for controlling the flow rate by the flow controller 40, for example, when the measured value of the first pressure gauge 51 is smaller than the set threshold value, it is indicated that the pressure upstream of the purifier 20 is too small, and the flow rate may be reduced by the flow controller 40 to increase the pressure upstream of the purifier 20, so as to maintain the power of the hydrogen isotope gas passing through the purifier 20. The second pressure gauge 52 is disposed in the gas flow direction after the purifier 20 and before the hydrogen storage bed, that is, the second pressure gauge 52 is disposed between the purifier 20 and the hydrogen storage bed, the second pressure gauge 52 is used for measuring the pressure downstream of the purifier 20, and the second pressure gauge 52 is matched with the first pressure gauge 51 to detect the pressure difference at both sides of the purifier 20; by controlling the opening and closing of the valves, the pressure in the hydrogen storage bed at the time of desorption of the hydrogen storage bed can also be measured using the second pressure gauge 52 to determine whether or not communication between the first hydrogen storage bed 301 and the second hydrogen storage bed 302 is required, and the hydrogen isotope gas in the second hydrogen storage bed 302 is adsorbed into the first hydrogen storage bed 301.
In a preferred embodiment of the application, the apparatus further comprises a tritium ionization chamber 60, the tritium ionization chamber 60 being configured to measure the specific activity of the hydrogen isotope gas released by the separation bed 10 to the purifier 20. The tritium ionization chamber 60 can detect the specific activity of tritium, the tritium ionization chamber 60 can be arranged between the separation bed 10 and the purifier 20 along the gas flow direction, the specific activity of the hydrogen isotope gas measured by the tritium ionization chamber 60 can identify that the hydrogen isotope gas in the separation bed 10 is basically completely introduced into the hydrogen storage bed when the specific activity of the hydrogen isotope gas is smaller than a preset threshold value, and at the moment, the hydrogen isotope gas can be replaced by another separation bed 10 to continue desorption, or the gas circulation of the whole device is stopped.
In a preferred embodiment of the application, the apparatus further comprises a tritium removal bed 70, the tritium removal bed 70 being arranged to absorb residual hydrogen isotope gas within the piping of the apparatus. When the gas circulation of the whole device is stopped, a small amount of hydrogen isotope gas remains in each component or pipeline of the device, and the residual small amount of hydrogen isotope gas needs to be recovered, the gas can flow through the tritium removal bed 70 along the G direction, and the residual small amount of hydrogen isotope gas in the device can be absorbed through the tritium removal bed 70. The gas flow of the whole device is powered by a circulating pump, and the switching of the gas flow channels is realized through a plurality of valves, and the structures known in the art are omitted from the description of the embodiment of the application and the drawings.
It should also be noted that, in the embodiments of the present application, the features of the embodiments of the present application and the features of the embodiments of the present application may be combined with each other to obtain new embodiments without conflict.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (9)

1. An apparatus for separating and purifying a hydrogen isotope gas from a mixed gas of helium gas and a hydrogen isotope gas using helium gas as a carrier, comprising:
a separation bed and a purifier;
wherein the separation bed is configured to absorb the hydrogen isotope gas from the mixed gas and release the absorbed hydrogen isotope gas to the purifier, and the hydrogen isotope gas released from the separation bed contains impurities formed by other gases than the hydrogen isotope gas in the mixed gas;
the purifier being arranged to receive the hydrogen isotope gas released by the separation bed and the impurity, the purifier being arranged to allow passage of the hydrogen isotope gas but not the impurity;
the separation bed is further configured to receive the hydrogen isotope gas and the impurity that did not pass through the purifier;
the apparatus further comprises a hydrogen storage bed configured to receive and store hydrogen isotope gas through the purifier;
the hydrogen storage bed is configured to store the hydrogen isotope gas passing through the purifier in a non-gaseous form in the hydrogen storage bed;
the hydrogen storage bed comprises a first hydrogen storage bed and a second hydrogen storage bed;
the first hydrogen storage bed absorbs hydrogen isotope gas at a rate greater than the second hydrogen storage bed absorbs hydrogen isotope gas;
the room temperature hydrogen adsorption pressure of the first hydrogen storage bed is greater than the room temperature hydrogen adsorption pressure of the second hydrogen storage bed;
when desorption is just started, the speed of the hydrogen isotope gas passing through the purifier is high, and the first hydrogen storage bed with high speed of absorbing the hydrogen isotope gas is used for absorbing the hydrogen isotope gas passing through the purifier so as to maintain the pressure difference at two sides of the purifier and ensure the filtering speed of the purifier; and when the concentration of the hydrogen isotope gas in the whole pipeline is lower in the later desorption stage of the separation bed, the speed of the hydrogen isotope gas passing through the purifier is lower, the hydrogen pressure of the hydrogen isotope gas passing through the purifier is smaller, and the second hydrogen storage bed with lower absorption speed of the hydrogen isotope gas but lower absorption equilibrium pressure is used for absorbing the hydrogen isotope gas passing through the purifier.
2. The apparatus according to claim 1, wherein:
the separation bed is a zirconium-cobalt alloy bed, and the purifier is a palladium membrane component.
3. The apparatus according to claim 1, wherein:
the first hydrogen storage bed is communicated with the second hydrogen storage bed through a pipeline, a valve is arranged on the pipeline, and the valve is used for controlling the on-off of the pipeline.
4. The apparatus according to claim 1, wherein:
the first hydrogen storage bed is a lanthanum nickel aluminum manganese alloy bed;
the second hydrogen storage bed is a zirconium-cobalt alloy bed.
5. The apparatus according to claim 1, wherein:
the separation bed comprises a first separation bed and a second separation bed;
the first separation bed and the second separation bed are arranged in parallel, and the first separation bed and the second separation bed are arranged to alternately absorb hydrogen isotope gas from the mixed gas and alternately release the absorbed hydrogen isotope gas to the purifier.
6. The apparatus according to claim 1, wherein:
the apparatus further includes a flow controller configured to cause hydrogen isotope gas mixed with the impurity that does not pass through the purifier to flow through the flow controller to be received by the separation bed.
7. The apparatus according to claim 6, wherein:
the device further comprises a first pressure gauge and a second pressure gauge;
the first pressure gauge is arranged behind the purifier and in front of the flow controller along the gas flow direction and is used for measuring the pressure of the hydrogen isotope gas mixed with the impurities, which does not pass through the purifier;
the second pressure gauge is disposed in the gas flow direction after the purifier and before the hydrogen storage bed, and is configured to measure the pressure of the hydrogen isotope gas passing through the purifier.
8. The apparatus according to claim 1, wherein:
the apparatus further includes a tritium ionization chamber configured to measure the specific activity of the hydrogen isotope gas released by the separation bed to the purifier.
9. The apparatus according to claim 8, wherein:
the device further includes a tritium removal bed configured to absorb residual hydrogen isotope gas within the tubing of the device.
CN202211010149.9A 2022-08-23 2022-08-23 Device for separating and purifying hydrogen isotope gas from mixed gas of helium and hydrogen isotope gas using helium as carrier Active CN115364631B (en)

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CN114171233A (en) * 2021-12-03 2022-03-11 中国工程物理研究院核物理与化学研究所 Reactor on-line tritium production and tritium recovery device

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Publication number Priority date Publication date Assignee Title
US4867762A (en) * 1987-05-27 1989-09-19 European Atomic Energy Community (Euratom) Method and a device for purifying a gas containing hydrogen isotopes
JP2008296089A (en) * 2007-05-29 2008-12-11 National Institutes Of Natural Sciences Method for isolating and enriching hydrogen isotope
KR101547957B1 (en) * 2014-07-14 2015-08-28 한국원자력연구원 Non-contacting dust free type tritium storage vessel for nuclear fusion facilities
CN104340959A (en) * 2014-11-05 2015-02-11 中国工程物理研究院核物理与化学研究所 Hydrogen and helium gas mixture separation and recovery device
CN112960648A (en) * 2021-03-12 2021-06-15 中国工程物理研究院核物理与化学研究所 Normal-temperature hydrogen-helium separation and storage integrated device and method
CN114171233A (en) * 2021-12-03 2022-03-11 中国工程物理研究院核物理与化学研究所 Reactor on-line tritium production and tritium recovery device

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