Tank Inerting
Oxidative reactions may occur in holding or blending tanks, or during tranfer when the empty headspace around a product is contaminated with oxygen.
Tank inerting consists of blanketing the surface of the headspace above the liquid in a tank with a protective layer of inert gas during storage or emptying of the tank, in order to prevent oxidative reactions. It is a two-step process: purging of the tank followed by its inerting.