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US 8,597,413 B2Granted
Scrubber with multiple venturis
AssigneeAndritz Inc.
InventorsKimmo Peltonen, Todd S. Grace
Life of this patent
Estimating the term…
Abstract
A scrubber removes matter (e.g., particulate, gaseous, or liquid) from a gas stream in order to recover the matter and/or to clean the gas. In particular aspects, the scrubber contains multiple venturis that may provide additional flexibility and increased efficiency. The invention also pertains to related methods.
Claims13
A method of separating matter from a gaseous stream, the method comprising:
- providing a gaseous stream comprising solid, liquid, or gaseous matter to be removed from the stream;
- dividing the gaseous stream into two or more gaseous streams;
- providing at least two venturis, wherein the at least two venturis each comprise a nozzle, an inlet cone, a throat, and an outlet cone, wherein the at least two venturis are arranged in parallel, and at least one of the at least two venturis are adapted to receive a portion of the two or more gaseous streams and each of the at least one of the at least two venturis are adapted to separately receive and separately distribute a first liquid and a second liquid, wherein the inlet cone of at least one of the at least two venturis has an angle of between 45° and 60°, and wherein the inlet cone angle of at least one of the at least two venturis differs from at least one other of the at least two venturis;
- feeding each of the divided streams into one of the at least two venturis;
- distributing, in at least one of the at least two venturis, the first liquid by a first nozzle and the second liquid by a second nozzle, wherein the first liquid being a cooling liquid for cooling the inlet stream, and the second liquid being a solvent used as a scrubbing liquid to entrain the matter to be separated from gas;
- mixing a solvent from at least one of the first and second nozzles in at least one of the at least two venturis with the divided stream so as to entrain the matter and facilitate separation in a separator;
- discharging, from at least one of the at least two venturis, at least one outlet stream wherein the outlet stream include gas and entrained matter to be separated from the gas;
- providing the separator downstream of the at least two venturis, wherein the separator is adapted to receive at least one outlet stream from at least one of the at least two venturis;
- connecting the separator to the at least two venturis;
- and
- separating the entrained matter from the gaseous stream in the separator;
- wherein the gaseous stream is removed from a first exit in the separator, and the entrained matter is removed from a second exit in the separator.
9 more elements
Dependencies are inferred from the claim text.