Статья

Experimental studies of hydrogen-absorbing properties of intermetallic compound LaNi4.4Fe0.3Al0. 3 for hydrogen purification

D. Blinov, A. Bezdudny, D. Dunikov, A. Kazakov, V. Kuleshov,
2020

Hydrogen/methane mixtures draw attention due to the idea of the injection of hydrogen into natural gas networks and biological production of biohythane by one- and two-step anaerobic fermentation/digestion methods. It is hard to extract hydrogen from dilute mixtures with methane by traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides selectively absorb hydrogen and offer an opportunity to overcome the limitations of traditional separation methods. Intermetallic alloy of lowered pressure LaNi4.4Fe0.3Al0.3 was made (obtained) to use it in the extraction of hydrogen out of a mixture of gases. Hydrogen absorption properties of alloy were investigated. PCT isotherms between 313K and 353K, porosity, average particle size, specific surface area and permeability of metal hydride bed were measured, X-ray diffraction (XRD) and SEM investigation of bed structure were implemented. Experimental study of processes during the extraction of hydrogen out of binary mixture H2-CH4 (10% vol.-90% vol.) were carried out by means of continuous-flow metal hydride reactor RSP-8, filled with 1 kg of LaNi4.4Fe0.3Al0.3. Recover ratio with the mixture pressure of 1.0 MPa stood at 70%.

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  • 1. Version of Record от 2020-12-01

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Об авторах
  • D. Blinov
    Joint Institute of High Temperature, Russia, 111116 Moscow, Krasnokazarmennaya, 17A, National Research University “MPEI”, Russia, 111250 Moscow, Krasnokazarmennaya, 14, D.V.Blinov.JIHTRAS@yandex.ru
  • A. Bezdudny
    Joint Institute of High Temperature, Russia, 111116 Moscow, Krasnokazarmennaya, 17A
  • D. Dunikov
    Joint Institute of High Temperature, Russia, 111116 Moscow, Krasnokazarmennaya, 17A, National Research University “MPEI”, Russia, 111250 Moscow, Krasnokazarmennaya, 14
  • A. Kazakov
    Joint Institute of High Temperature, Russia, 111116 Moscow, Krasnokazarmennaya, 17A
  • V. Kuleshov
    National Research University “MPEI”, Russia, 111250 Moscow, Krasnokazarmennaya, 14
Название журнала
  • Journal of Physics Conference Series
Том
  • 1683
Выпуск
  • 3
Страницы
  • 032036
Издатель
  • IOP Publishing
Тип документа
  • journal article
Тип лицензии Creative Commons
  • CC BY
Правовой статус документа
  • Свободная лицензия
Источник
  • dimensions