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US 7,025,807 B2Granted
Method for absorbing vapors and gases from pressure vessels
AssigneeAdvanced Production and Loading AS
InventorEvert Grodal
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for absorbing vapors and gasses by controlling overpressure in storage tanks during filling, transport and storing of fluids in liquid form. The process includes leading of gas down to the bottom of the tank, where a major part of the gas is absorbed in the tank's own liquid in an absorption device or optionally the liquid is supplied from an external source.
Claims5
A method of controlling overpressure in a storage tank storing a liquid by absorbing vapour/gas, comprising:
- leading a vapour/gas from a gas zone within a top section of the storage tank to an absorption device placed in a submerged position in the liquid in the tank, near a bottom of the tank;
- absorbing the vapour/gas into tank liquid that surrounds the absorption device and circulates through the device, or is supplied from an external source;
- and
- returning unabsorbed vapour/gas from the absorption device to the gas zone at the top section of the tank or leading the unabsorbed vapour/gas out of the tank.
1 more element
Dependencies are inferred from the claim text.