The hydrocyclone separator, which was invented in 1891 (see E. Bretney, “Water Purifier”, U.S. Patent 453,105) is widely used in process engineering as a classifier, a clarifier, or a thickener. The continuous phase is a liquid and the dispersed phase may be a solid, a gas, or an immiscible fluid. The shape of a hydrocyclone controls the internal secondary flows within the separator and, thereby, depends on the specific application. If you are curious about how this “KISS” technology works and would like to know how this idea has been used over the past 100+ years, then please join us in an AIChE Webinar conversation related to this interesting and noteworthy unit operation.
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