Storage Tanks are an integral part of Oil and Gas Exploration and Chemical Production Industry. These come in various hues and different roof and shell designs.
The most common are the fixed roof; either supported or self supported roof tanks. Open roof tanks are also used for reasons of economy, especially for firewater service. Due to strict emiision laws and concern for the environment as well as conservation, internal and external floating tanks have gained wide currency.Aluminium domed roofs are also being widely used for the benefits they bring especially in retrofitting.
Refrigerated storage is also now becoming popular in preference to pressurised storage.THe stored liquid is chilled to its bubble point at near atmospheric pressure.While earlier the most common type of refrigerated storage consisted of a tank with a single liquid retaining compartment surrounded by a dike, safey and economic considerations require a double containment or full containment that are popularly known as double walled storage tank.
Pressure storage tanks used to store products of a sufficiently high vapor pressure as to boil at normal atmospheric pressure fall in the realm of Pressure Vessels.