System for storing and supplying hydrogen

Abstract

A system for storing and supplying hydrogen to a unit (130) for using hydrogen, comprising: - a first tank (110) for storing hydrogen comprising a first material (111) for metastable storage of hydrogen by sorption; and - a second tank (120) for storing hydrogen comprising a second material (121) for reversible storage of hydrogen by sorption, a hydrogen outlet (1101) from the first tank to the second tank and / or the unit for using hydrogen; - a hydrogen outlet (1201) from the second tank to the unit for using hydrogen, so as to allow the first tank to supply a first flow of hydrogen to the unit for using hydrogen, and to allow the second tank to supply a second flow of hydrogen to the unit for using hydrogen, the second flow completing and / or replacing the first flow.

Description

technical field [0001] The present invention relates to a hydrogen storage and supply system. The invention also relates to a method related thereto. Background technique [0002] Hydrogen storage and supply systems exist. These systems include at least a solid material for storing hydrogen. The solid material may be a metastable material. This material stores a considerable amount of hydrogen gas. But the material must be heated while in use to provide a significant storage rate. Furthermore, even when stored, this metastable material always releases small amounts of hydrogen gas over time. [0003] These systems must comply with a number of constraints related to their intended use, for example in motor vehicles (eg fuel cells). [0004] Sufficient storage capacity and storage rate are required to ensure the intended use. However, at start-up, this storage rate cannot be achieved with conventional systems and requires the presence of the battery. Furthermore, in th...

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Problems solved by technology

However, at start-up, this storage rate cannot be achieved with conventional systems and requires the presence of the battery

Furthermore, for the case of a rapid and substantial increase in hydrogen demand, the temperature of the material must be raised suddenly, which is difficult to achieve and may lead to overproduction of hydrogen

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