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A hydrogen isotope gas purification method

A hydrogen isotope and gas purification technology, which is applied in the field of hydrogen isotope gas purification and hydrogen isotope gas, can solve the problems of high intensity, limited application, and can not withstand high hydrogen pressure, to simplify the activation process, shorten the hydrogen isotope cycle, reduce The effect of preparation cost

Active Publication Date: 2016-08-17
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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Problems solved by technology

However, the disadvantage of this alloy membrane is that its strength is only slightly higher than that of pure palladium membranes, which means that unsupported alloy membranes at high temperatures cannot withstand high hydrogen pressures.
In recent years, the application results of palladium alloy membranes in the tritium purification process have shown that some shortcomings associated with materials, such as hydrogen embrittlement, helium embrittlement, impurity poisoning, etc., limit the use of such alloy membranes in the harsh conditions of fusion reactor nuclear fuel purification. application

Method used

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Embodiment Construction

[0027] In the hydrogen isotope gas purification method of the present invention, the main body of the hydrogen isotope gas purification device is provided with a helical palladium yttrium alloy spiral tube. Its process system is mainly composed of purifiers, standard tanks, gas storage tanks, pressure sensors, valves, vacuum gauges, gas circulation transfer pumps, vacuum pumps and data acquisition systems. The entire process system must be leak detected by helium mass spectrometry before use, and the leak rate should be less than 1.0×10 -9 Pa.m 3 .s -1 . The purifier is mainly used for the purification of hydrogen isotope gas; the standard tank is mainly used for the quantitative calibration of the gas volume in the hydrogen isotope gas purification process; the gas storage tank is mainly used for the collection of the gas volume in the process of hydrogen isotope gas treatment; the pressure sensor is mainly used It is used to display and control the working pressure in the...

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Abstract

The present invention provides a hydrogen isotope gas purification method, the purification method includes the following steps in turn: a. Leak rate inspection of the hydrogen isotope gas purification device, charging to 1.5MPa, and keeping the pressure for 60min; b. Pretreatment before purification ; c, purification treatment; d, post-processing. By adopting the purification method of the present invention, high-purity hydrogen isotope gas can be obtained.

Description

technical field [0001] The invention belongs to the technical field of hydrogen isotope processing, and in particular relates to a method for purifying hydrogen isotope gas. 2 , N 2 , Ar, CH 4 , CO 2 Efficient removal of other impurity elements to obtain hydrogen isotope gas with a purity of more than 99.999%. Background technique [0002] Energy, economy and environment are the three major issues facing the sustainable development of human society today, among which energy is the basis for sustainable development of economy and environment. Nuclear fission energy is a new energy source that appeared in the 1960s. After nearly half a century of development, it has now reached a considerable scale. By the end of the 20th century, the world's installed capacity had reached 430GW, and fission energy contributed 7% to the total energy. Just as the electrical output of a conventional power plant is impossible without coal or natural gas, the electrical output of a fusion rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D59/10C01B4/00
Inventor 熊义富罗德礼石岩把静文敬文勇何名明吴文清常元庆
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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