Metal hydrides are the most compact way to store hydrogen (more dense than liquid hydrogen). The internal volume of the CL-370A is less than 0.7 liters. 370 liters of hydrogen capacity is more than 500 times the size of the container!
Standard SOLID-H BL-series containers hold 18, 20, 30, 120, 220 or 740 standard liters of hydrogen gas. These are on the shelf or available on short delivery schedules.
We recently introduced the lower cost SOLID-H CL-series containers, including CL-370 and CL-910, based on aluminum industrial gas cylinders. These two containers hold 370 and 910 liters of hydrogen respectively. The aluminum cylinders used to make the CL-series are rated for very high pressures. This makes them heavier than equivalent thin walled stainless steel BL-series containers of comparable capacity.
If you need a different capacity or special pressure-temperature specifications, just email your specifications. HCI has built custom metal hydride systems since 1978 with up to 300,000 liters of hydrogen capacity.
A SOLID-H™ container is coupled to your system by a fitting that you specify when you order. This is usually a quick connect for convenience of installation and removal. Unless you specify a different fitting we will install a Swagelok QM series female quick connect on the container. We also supply a mating male quick connect that adapts to 1/8 th inch tubing.
The hydrogen pressure when charging or discharging a SOLID-H™ container is something you select when you order. Four standard pressure ranges are offered; Alloy A (1-10 bar at room temperature), Alloy L (2-3 bar at room temperature), Alloy M (4-5 bar at room temperature) and Alloy H (8-12 bar at room temperature).
Alloy A is an iron-titanium alloy that may be shipped void of hydrogen as non-hazardous material. Alloys L, M and H are rare earth-nickel alloys. After activation (activation means "charged for the 1st time") they must be shipped void of hydrogen as a flammable solid. The expense of hazardous shipping may be avoided if you order unactivated SOLID-H™ containers. HCI will send activation instructions.
Recharge your SOLID-H™ container by connecting it to a source of clean dry hydrogen gas at the pressure specified in your SOLID-H™ manual. The container will get warm to the touch. When it is cool again, recharging is complete.
Reduce the pressure to the value indicated for your alloy in the SOLID-H TM manual before disconnecting it from your hydrogen source. Failure to do so may lead to venting through the pressure relief in hot environments (pressure increases rapidly with temperature).
If your application requires low pressure hydrogen you will need a pressure regulator, like the one shown below.