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US 5,211,916 AGranted
Stripping system
AssigneePraxair Technology, Inc.
InventorAlan T. Cheng
Life of this patent
Estimating the term…
Abstract
An in-line stripper has a venturi-conical mixer combination in which the annular space thereby is automatically adjustable in response to changes in viscosity or other property conditions.
Claims15
An in-line stripping system comprising:
- (a) a flow line in which a liquid reaction mixture and a stripping gas are mixed;
- (b) inlet means for the introduction of a liquid reaction mixture to a flow line;
- (c) injection mans for injecting a stripping gas into the flow line for mixing with said liquid reaction mixture to form a gas-liquid mixture;
- (d) venturi means positioned in the flow line and having a converging section to which said liquid reaction mixture and stripping gas are passed, and a divergent section from which the gas-liquid mixture is discharged;
- (e) a conical mixer positioned in the flow line and having a converging portion in a downstream direction, said conical mixer being positioned in the converging section of said venturi means and having support rod means extending upstream thereof, said conical mixer and the converging section of the venturi means forming an annular opening for the passage of said liquid reaction mixture and said stripping gas and the acceleration of the gas-liquid mixture to a supersonic velocity with subsequent reduction to subsonic velocity in the diverging section of the venturi means;
- (f) outlet means for the removal of said gas-liquid mixture from the flow line downstream of said venturi means;
- (g) mechanical means for moving said support rod means forward so as to position said conical mixer closer to the converging section of the venturi means, or backward so as to position said conical mixer further away from the converging section of the venturi means, in response to changes in a property characteristic of the liquid reaction mixture;
- whereby the annular opening between the converging section of the venturi means and the conical mixer is automatically adjusted in response to changes in said property characteristic of the liquid reaction mixture.
5 more elements
Dependencies are inferred from the claim text.