Method for mixing fluids
AssigneeStatoil ASA
InventorsFinn Patrick Nilsen, Harald Linga, Rune Fantoft, Inge Sverre Lund Nilsen, Geir Inge Eide
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Abstract
The use of a turbulent contactor to absorb a selected gas component from a gas stream. The invention particularly applies to a method of distributing a liquid into a gas stream which comprises providing a liquid to an annulus at the periphery of a pipe in which a gas stream is flowing, the gas flow drawing the liquid into a film along the inner surface of the pipe to a sharp edge at the end of the pipe at which point the liquid breaks off the surface of the pipe and mixes intimately with the gas.
Claims27
A method of distributing a liquid into a gas stream which comprises providing a first contactor having a pipe in which a gas stream is flowing and providing a liquid to the pipe in which the gas stream is flowing, the gas flow drawing the liquid into a film along the inner surface of the pipe to a sharp edge at the end of the pipe at which point the liquid breaks off the surface of the pipe and mixes intimately with the gas, wherein the liquid is introduced through a passage to the inner surface of the pipe in the form of an annulus around a circumference of the inner surface of the pipe, and wherein a pressure across the passage is controlled to enable distribution of the liquid in the film around said circumference.
Apparatus for distributing a liquid into a gas stream comprising a turbulent contactor having a contracting pipe section through which a gas stream flows, a passage, a sharp edge at the end of the contracting pipe section and a further pipe section downstream of the sharp edge, wherein the passage is arranged to introduce an annulus of liquid through the passage around the internal perimeter of the contracting pipe section, wherein a pressure at the passage is controlled to enable distribution of the annulus of liquid in a film around the internal perimeter, wherein the prior art reference 769,821 to Aktiebolaget Svenska Flaktfabiken disclose liquid introduction though inlet 3 in spray pattern but not through a passage which is controlled to enable of distribution of liquid in the film around an inner circumference of a pipe.
A method for absorbing a selected gas component from a gas stream by bringing the gas stream into contact with liquid including a solvent or a reagent for the selected gas component using a turbulent contactor having a contracting pipe section through which a gas stream flows, a passage arranged to introduce an annulus of liquid through the passage around the internal perimeter of the pipe, wherein a pressure at the passage is controlled to enable distribution of the liquid in a film around the internal perimeter, and a sharp edge at the end of the contracting pipe and a further pipe section downstream of the sharp edge.
Dependencies are inferred from the claim text.