Abstract: A hydrogen compression system includes: a heat pump part including a heat pump line configured to allow a refrigerant to circulate therethrough, a hydrogen compression part configured to compress hydrogen by being repeatedly heated and cooled, a first circulation line connected to the heat pump line while passing through the hydrogen compression part and configured to allow the refrigerant introduced from the heat pump line to circulate therethrough, a second circulation line provided to pass through the hydrogen compression part and configured to allow a cooling fluid to circulate therethrough, and a cooling unit provided in the second circulation line and configured to cool the cooling fluid, in which the hydrogen compression part is heated by the refrigerant or cooled by the cooling fluid, thereby minimizing electric power consumption and improving energy efficiency.

Abstract: Hydrogen storage system comprising a plurality of storage containers, each storage container comprising a tubular container wall and end caps closing opposite ends of the tubular container wall, and a metal hydride (MH) configured for hydrogen storage contained within a chamber of the storage container, the plurality of storage containers of one multi-container unit being interconnected by gas flow tubes in a direct fluidic connection ensuring that the gas pressure within the containers are substantially the same. The tubular container wall of each storage container has a diameter in a range from 1.5 cm to 10 cm adjacent ones of said plurality of storage containers of said module being separated by a gap (G) within a range of distance corresponding to 0.02×D to 1×D, D being diameter of the tubular container wall.

Abstract: Hydrogen storage system for passive discharge of hydrogen gas without employing heating means, comprising a plurality of hydrogen storage tanks each containing at least one metal hydride (MH) storage material, a hydrogen gas flow circuit connected to the storage tanks and a control system including pressure sensors (P) and temperature sensors (T) arranged for measuring the pressure and temperature in each storage tank, the gas flow circuit comprising valves (V, V1, . . . Vn) coupling said plurality of storage tanks to an inlet, respectively an outlet of the hydrogen storage system, whereby the inlet and outlet may be common or may be separate. At least a first material storage tank comprises a first metal hydride (MH1) of a first composition and at least a second material storage tank comprises a second metal hydride (MH2) of a second composition.

Abstract: The present relates to a Metal hydride compressor control method for generating a variable output pressure P_desired_outPut, comprising a first step of inflowing gaseous hydrogen into a metal hydride compartment at a constant temperature and then stopping the gaseous hydrogen inflow, a second step of heating the metal hydride to a predetermined temperature which corresponds to a temperature which passes through the ?+? phase at the desired output pressure P_desired_output, a third step of opening the output connection of the compressor and keeping it at a constant pressure by regulating the temperature to keep a constant output pressure P_desired_outPut until the system completely leaves the ?+? phase.

Abstract: The present relates to a combined hydrogen storage-compression unit suitable for the filling of high-pressure (350 bar and beyond) hydrogen vessels. It includes a containment vessel filled with a hydrogen storage alloy, a heating system, a cooling system and a thermal management system. The same shall be connected directly to the hydrogen supply (e.g. an electrolyser) on one side and to the end consumer on the other side. Moreover, it offers the possibility for intermediate storage of at least one time the maximal quantity of hydrogen that is to be supplied at high pressure in a single step.

Abstract: The present relates to a chemical reactor comprising a catalyst bed enclosed in a reactor vessel and at least one cooling tube placed in the reactor vessel and passing through the catalyst bed, characterized in that the cooling tubes are disposed within the reactor so as to generate thermal gradients of at least 20° C./cm thereby generating hot spots throughout the reactor upon carrying out a reaction. The invention further relates to a methanation process.

Abstract: The present relates to a Metal hydride compressor control method for generating a variable output pressure P_desired_outPut, comprising a first step of inflowing gaseous hydrogen into a metal hydride compartment at a constant temperature and then stopping the gaseous hydrogen inflow, a second step of heating the metal hydride to a predetermined temperature which corresponds to a temperature which passes through the ?+? phase at the desired output pressure P_desired_output, a third step of opening the output connection of the compressor and keeping it at a constant pressure by regulating the temperature to keep a constant output pressure P_desired_outPut until the system completely leaves the ?+? phase.