PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY
Series: Nuclear and Reactor Constants

since 1971

Русский (РФ)

ISSN 2414-1038 (online)

HYDROGEN PURIFICATION  FOR STANDS WITH HEAVY LIQUID METAL COOLANT

EDN: MEIDIF

Authors & Affiliations

Zyubanov V.A., Askhadullin R.Sh.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Zyubanov V.A. – Junior Research Fellow. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-70-00 (add. 41-15); e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Askhadullin R.Sh. – Head of Department of Physical and Chemical Engineering, Cand. Sci. (Tech.).

Abstract

Studies and operational experience with Pb-Bi and Pb circuits have shown that impurities inevitably enter the coolant, interact with each other and with coolant components and structural materials. The products of these interactions are transported and localized. However, the majority of impurities are formed as a result of the interaction of the coolant and the circuit with atmospheric oxygen, which occurs in situations involving circuit depressurization. To ensure trouble-free operation of research stands, small-scale installations, and new-generation reactor installations with heavy liquid metal coolants (HLMCs), a technology for maintaining the quality of HLMCs is required. One method of maintaining HLMCs quality is hydrogen purification, which is achieved by introducing a hydrogen-containing gas mixture into the heat transfer fluid flow in circulation units, or into the heat transfer fluid volume to a sufficient depth in static units. Specialists at IPPE JSC have developed and experimentally validated designs for devices for introducing gas mixtures into static and circulation units, which allow the hydrogen purification method to be implemented in HLMCs. The designs of gas mixture injection devices are engineered for each plant, taking into account its technical characteristics and operating modes. It is not possible to create a universal design for injecting gas mixtures into HLMCs that could be used for any plant by simply changing the scale. The article discusses methods of implementing hydrogen purification for static and circulation units using various types of gas mixture injection devices, taking into account the experience of IPPE JSC in creating these devices.

Keywords
hydrogen-containing gas mixture, mechanical gas disperser, technical parameters, lead oxide, reactor unit, heavy liquid metal coolant, hydrogen purification

Article Text (PDF, in Russian)

References

UDC 621.039.534.6

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2026, no. 2, 2:16