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

Cryogenic Storage Tanks Design

Flat Bottom Tanks

  • 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

VIT (Vacuum Isolated Tank)

  • Vacuum Insulated Tank- typically for pressures up to 5 bar (g)
  • storage of liquid to be delivered to pump or tanker

VIE  (Vacuum Isolated Evaporator)

  • typically for pressures up to 35 bar (g)
  • 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