Cryogenic Tank Technology (G)

Industrial gases such as oxygen, nitrogen, argon and hydrogen are being produced in gaseous form or as cryogenic liquids. For storage or back-up cryogenic liquid tanks are used.

Example: Back-up systems

Main components:

  • Tank liquid storage
  • Pump raises liquid pressure
  • Vaporiser liquid vaporised to ambient temperature
  • HD liquid storage

Cryogenic Storage Tanks Design

Flat bottom tanks – characteristics

atmospheric storage, held a few millibar above atmospheric pressure
large quantities single product
inner vessel stainless steel, outer vessel carbon steel
site built tank
emergency flap valves main in/outlets
insulation: perlite interspace with nitrogen purge

Cryogenic Vacuum Standard Tanks

  • Vacuum Insulated Tank- typically for pressures up to 5 bar (g)
  • smaller capacities (from 3 to 300 m3 geom.)
  • designed to operate with a vapouriser to supply gas to customer
  • suitable for supply of large quantities of product for a short time
  • inner vessel stainless steel, outer vessel carbon steel
  • insulation: vacuum interspace, perlite filled
  • vessels often supplied with instrumentation eg level indication, pressure protection