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Abstract

Method for storing a gas in solid phase so that it can be distributed in gaseous phase, that consists in introducing the gas in gaseous phase into a storage tank (1) containing a reactive mixture the apparent density of which is between 40 kg/m3 and 60 kg/m3 and preferably of the order of 50 kg/m3, and which is made up of a reactive product and of expanded natural graphite, this reactive mixture and the gas being such that, when brought into the presence of one another, the reactive product and the gas undergo a thermochemical reaction the effect of which is that the gas is absorbed by the reactive product and a solid product of reaction is produced and, conversely, undergo a reverse thermochemical reaction in which the gas absorbed by the reactive product is desorbed when this product is heated after it has absorbed the gas.

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First Claim