Pressure Vessel? or Storage Tank?
Most designer /beginner in oil and gas misunderstand that both tank and pressure vessel are in different classification. Tank can divided in two categories . The two kinds of storage tanks, are the Atmospheric Storage Tank and the Low Pressure Storage tank. For pressure Vessel , When a container is pressurized then pressure is exerted normal to the surface against the walls of regardless of the shape. Pressure vessel is a container that has pressure different from the atmospheric pressure. There are many types of pressure vessel they are; thin walled, thick walled, strong tanks, transportable containers, propane bottles and gas cylinders. Pressure vessel is a container that holds liquid, vapor or gas at different pressure other then atmospheric pressure at the same elevation. Generally, a pressure vessel is considered to be thin-walled if its radius is larger than 5 times its wall thickness. Under this condition, the stress in the wall may be considered uniform. Thin wall pressure vessels are in fairly common use. There are two specific types of pressure vessels they are; cylindrical pressure vessels and spherical pressure vessels. Under this condition, the stress in the wall may be considered uniform. The stress in thin walled vessel varies from a maximum value at the inside surface to a minimum value at the outside surface of the vessel. Storage tanks are a category of thin walled pressure vessel.
Atmospheric Storage Tank and the Low Pressure Storage tank.
2. Atmospheric storage tanks are used for storing crude oil, heavy oil, gas oils, furnace oils, naphtha, gasoline, non-volatile chemicals, etc.
Low pressure storage tank are used for storing light crude oil, some gasoline blending stock, light naphtha, pentane, some volatile chemicals, liquid oxygen, liquid nitrogen, etc.
Most designer /beginner in oil and gas misunderstand that both tank and pressure vessel are in different classification. Tank can divided in two categories . The two kinds of storage tanks, are the Atmospheric Storage Tank and the Low Pressure Storage tank. For pressure Vessel , When a container is pressurized then pressure is exerted normal to the surface against the walls of regardless of the shape. Pressure vessel is a container that has pressure different from the atmospheric pressure. There are many types of pressure vessel they are; thin walled, thick walled, strong tanks, transportable containers, propane bottles and gas cylinders. Pressure vessel is a container that holds liquid, vapor or gas at different pressure other then atmospheric pressure at the same elevation. Generally, a pressure vessel is considered to be thin-walled if its radius is larger than 5 times its wall thickness. Under this condition, the stress in the wall may be considered uniform. Thin wall pressure vessels are in fairly common use. There are two specific types of pressure vessels they are; cylindrical pressure vessels and spherical pressure vessels. Under this condition, the stress in the wall may be considered uniform. The stress in thin walled vessel varies from a maximum value at the inside surface to a minimum value at the outside surface of the vessel. Storage tanks are a category of thin walled pressure vessel.
Atmospheric Storage Tank and the Low Pressure Storage tank.
- The maximum pressure for vapor or gas space of an atmospheric storage tank is 2.5 psi, and for a low pressure storage tank is 15 psi.
2. Atmospheric storage tanks are used for storing crude oil, heavy oil, gas oils, furnace oils, naphtha, gasoline, non-volatile chemicals, etc.
Low pressure storage tank are used for storing light crude oil, some gasoline blending stock, light naphtha, pentane, some volatile chemicals, liquid oxygen, liquid nitrogen, etc.