Replaceable modular device for hydrogen release

A modular device for generating hydrogen gas from a hydrogen liquid carrier, the modular device comprising:

• a housing;
• at least one inner cartridge arranged within the housing, the inner cartridge comprising at least one first catalyst configured to cause a release of hydrogen gas when exposed to the hydrogen liquid carrier;
• a first marginal cartridge disposed within the housing on a first end of the modular device and a second marginal cartridge disposed within the housing on a second end of the modular device, wherein:
• the first marginal cartridge includes at least one second catalyst configured to cause a release of hydrogen gas when exposed to the hydrogen liquid carrier, and
• the second marginal cartridge includes at least one third catalyst configured to cause a release of hydrogen gas when exposed to the hydrogen liquid carrier;
• a cooling system for removing heat generated within the modular device;
• at least one fuel inlet for receiving the hydrogen liquid carrier;
• at least one gas outlet for expelling the hydrogen gas generated in the modular device;
• and
• at least one liquid outlet for expelling the hydrogen liquid carrier.

A modular device for generating hydrogen gas from a hydrogen liquid carrier, the modular device comprising:

• at least two stackable cartridges, wherein each of the stackable cartridges comprises:
• at least one first catalyst configured to cause a release of hydrogen gas when exposed to the hydrogen liquid carrier, and
• one or more structural elements configured to facilitate mating of the at least two stackable cartridges in order to form the modular device;
• at least one liquid inlet for receiving the hydrogen liquid carrier, wherein the at least one liquid inlet is disposed on one or more of the at least two stackable cartridges;
• at least one gas outlet for expelling the hydrogen gas released in the modular device, wherein at least one gas outlet is disposed on one or more of the at least two stackable cartridges;
• and
• at least one liquid outlet for expelling the hydrogen liquid carrier, wherein the at least one liquid outlet is disposed on one or more of the at least two stackable cartridges.

A method for performing maintenance on a catalyst of a modular device for generating hydrogen gas from a hydrogen liquid carrier, the method comprising:

• evacuating hydrogen gas and hydrogen liquid carrier from the modular device;
• removing at least one cartridge from the modular device, the cartridge including at least one catalyst configured to cause a release of hydrogen gas when exposed to the hydrogen liquid carrier;
• and
• performing a maintenance operation including at least one of:
• inspecting the at least one catalyst for degradation, or
• replacing at least one of the at least one catalyst or the at least one cartridge.