What is the purpose of a secondary containment system in a double containment LNG tank?

The primary purpose of a secondary containment system in a double containment LNG tank is to provide a backup barrier to prevent the uncontrolled release of LNG to the environment in the event of a leak or failure in the primary (inner) tank. The secondary containment typically consists of an outer tank surrounding the inner tank, with a designed space between them. Should the inner tank develop a leak, the leaked LNG wo....