A method for regenerating zrco-based hydrogen isotope storage materials

A hydrogen isotope and hydrogen technology, applied in chemical instruments and methods, hydrogen, non-metallic elements, etc., can solve the problems of difficult hydrogen isotope recovery, complex regeneration process, high regeneration cost, etc., and achieve fast hydrogen release rate and high hydrogen release capacity , The effect of low regeneration cost

Active Publication Date: 2019-07-19
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages that the existing ZrCo-based hydrogen isotope storage materials cannot be used at higher temperatures, and the regeneration process of the ZrCo-based hydrogen isotope storage materials is complicated after the disproportionation reaction occurs, the recovery of hydrogen isotopes is difficult, and the regeneration cost is high. A method for regenerating ZrCo-based hydrogen isotope storage materials

Method used

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  • A method for regenerating zrco-based hydrogen isotope storage materials
  • A method for regenerating zrco-based hydrogen isotope storage materials
  • A method for regenerating zrco-based hydrogen isotope storage materials

Examples

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Embodiment 1

[0030] (1) ZrCo-based alloy disproportionation treatment: first weigh the activated ZrCo-based alloy and put it into the reactor of the Sievert-type test system, then fill the reactor with an initial hydrogen pressure of 1 bar, and then charge it at 2 °C / The heating rate of min can be used to disproportionate the ZrCo-based alloy by raising the temperature of the reactor to 650°C to obtain a disproportionated sample.

[0031] At the same time, the hydrogen pressure and temperature change curve in the reactor during the entire disproportionation process of the ZrCo-based alloy can also be obtained (that is, the hydrogen pressure and temperature change curve in the disproportionation stage of the ZrCo-based alloy), such as figure 2 shown, and, by figure 2 It can be seen that the hydrogen pressure in the reactor first increased and then decreased during the heating process, showing the remarkable characteristics of the disproportionation of the ZrCo-based alloy;

[0032] The ...

Embodiment 2

[0037] In this example, except that the hydrogen pressure in the reactor in step (2) is adjusted to 0.3 bar, and the regeneration reaction time is 200 minutes, the rest are the same as in Example 1.

[0038] In this embodiment, the hydrogen pressure and temperature change curves of the ZrCo-based alloy disproportionation stage obtained in step (1) are recorded as Figure 5 Shown, obtain the XRD pattern record of disproportionation sample as Figure 6 shown; and, the hydrogen pressure and temperature change curves of the ZrCo-based alloy regeneration stage obtained in step (2) were recorded in Figure 5 Among them, obtain the XRD pattern record of disproportionation sample as Figure 7 shown.

Embodiment 3

[0040] (1) ZrCo-based alloy disproportionation treatment: first weigh the activated ZrCo-based alloy and put it into the reactor of the Sievert-type test system, then fill the reactor with an initial hydrogen pressure of 2 bar, and then charge it at 5 °C / The temperature rise rate of min can be used to disproportionate the ZrCo-based alloy by raising the temperature of the reactor to 600°C to obtain a disproportionated sample.

[0041] (2) Regeneration of the disproportionated ZrCo-based alloy: keep the reactor containing the sample at 600 °C, adjust the hydrogen pressure to 0.1 bar, and then keep the reactor at this temperature and hydrogen pressure for 150 min. That is, the regeneration is completed, and a ZrCo-based alloy that has been regenerated is obtained. Among them, the relationship between hydrogen pressure and temperature in the regeneration process of the disproportionated ZrCo-based alloy satisfies 0.1<0.005×600-2.71=0.29;

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Abstract

The invention discloses a method for regenerating a ZrCo-based hydrogen isotope storage material. The method comprises the step of treating a ZrCo-based hydrogen isotope storage material to be regenerated for 10 to 300 minutes under the condition that the temperature is T and the hydrogen gas pressure is P, thereby completing regeneration, wherein a relationship between the T and the P is as follows: P(bar) is smaller than 0.005*T(DEG C)-2.71. According to the method disclosed by the invention, the defects that the existing ZrCo-based hydrogen isotope storage materials cannot be used at relatively high temperatures, and after a disproportionation reaction, the ZrCo-based hydrogen isotope storage materials are complicated in regeneration technology, difficult in hydrogen isotope recovery and high in regeneration cost are overcome, and the method has the advantages of simple method, remarkable regeneration effect and relatively low regeneration cost.

Description

technical field [0001] The invention relates to the technical field of hydrogen isotope storage and supply, in particular to a method for regenerating a ZrCo-based hydrogen isotope storage material. Background technique [0002] With the sharp reduction of fossil energy and the increasingly serious environmental problems, it has become an urgent task to develop a renewable clean energy. Among them, since the fusion reactor uses hydrogen isotope gas as nuclear fuel, it releases huge energy by burning deuterium-tritium plasma, but does not produce high-level radioactive waste. It is an excellent clean energy source, so it has attracted people's attention. One of the purposes of the designed and built International Thermonuclear Experimental Reactor (ITER) and the planned China Fusion Engineering Experimental Reactor (CFETR) is to develop and utilize this clean energy. Because when the fusion reactor is running, hydrogen isotope gas must be supplied or recovered according to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/00
CPCC01B3/0031C01P2002/72Y02E60/32
Inventor 寇化秦黄志勇唐涛桑革何晖刘梦佳
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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