Thermally insulated cryogenic container

Patent · Tue Nov 23 04:00:00 EST 1976

OSTI ID:6053590

Burge, G W; Madsen, R A

McDonnell Douglas Corporation's new approach provides an efficient thermal-insulation system for aboveground or cago tanks for LNG or other cryogenic liquids. At least two layers of an insulation material (preferably a fiberglass-reinforced urethane foam having an inner liner in the form of an aluminum-foil/fiberglass-cloth combination) are in contact with the cryogenic fluid. The inner liner is perforated to permit rapid venting. A thermal stabilizing barrier or liner, formed of a combination of fiberglass cloth with a layer of aluminum foil to reduce permeability, is placed between the insulation layers. The two liners are bonded to the individual layers of insulation; the insulation is in turn bonded to the container or tank wall by a suitable adhesive such as a polyurethane adhesive. In the design of this system, the low-permeability thermal-stabilizing barrier is placed at a distance from the cold insulation face adjacent to the inner liner. Because this distance is equal to or greater than the distance at which boiling will be established adjacent to the thermal-stabilizing barrier, a thin gas layer is built up adjacent to the barrier, preventing LNG from contacting and penetrating the stabilizing barrier.

• Assignee: McDonnell Douglas Corporation
• Patent Number(s): US 3993213
• OSTI ID: 6053590
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
035000* -- Natural Gas-- Storage-- (1989-)
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
ALUMINIUM
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CONTAINERS
CRYOGENIC FLUIDS
DESIGN
ELEMENTS
ENERGY SOURCES
FIBERGLASS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LIQUEFIED NATURAL GAS
METALS
NATURAL GAS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
TANKS
THERMAL INSULATION
URETHANE