2021-杂质对于氢化物反应器工作的影响.docxVIP

2021-杂质对于氢化物反应器工作的影响 2021-杂质对于氢化物反应器工作的影响 i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 37(2021) 13843e 13848 Available online at In?uenceof impurities on hydrogen absorption in a metal hydride reactor Dmitry Dunikov *, Vasily Borzenko, Stanislav Malyshenko Joint Institute for High Temperatures of Russian Academy Sciences, Izhorskaya 13Bld. 2, 125412Moscow, Russian Federation a r t i c l e i n f o Article history: Received 10December 2021Received in revised form 9April 2021 Accepted 12April 2021Available online 12May 2021Keywords:Hydrogen Storage Hydride Heat transfer Impurities Critical phenomenon a b s t r a c t Absorption of pure and impure hydrogen in AB 5-type metal hydride reactors is experi-mentally investigated. The process can be divided into three phases:“adiabaticheating”phase, “heattransfer”phase and “endof reaction”phase. Critical phenomenon is observed between “adiabaticheating”and “heattransfer”phases. The crisis occurs when temper-ature of metal hydride bed reaches maximum, which is close to equilibrium temperature for inlet pressure, and is followed by signi?cantslowdown of the reaction rate. Presence and accumulation of impurities in the voids of metal hydride bed precipitates crisis due to decreasing of hydrogen partial pressure. Two strategies of hydrogen puri?cationwith the aid of metal hydrides are discussed. Mixture ?ltrationthrough the metal hydride bed is recommended for high concentration of impurities and PSA (orTSA) suits for nearly pure hydrogen. Copyright a2021, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. 1. Introduction Integration of renewable energy (RE)sources into electric power systems requires technologies for energy storage. Energy storage in hydrogen may be an option for isolated electricity networks, small-scale self-suf?cientpower supply systems [1], hydrogen can provide longer-term seasonal sto