Centrifugal Pumps as Extractors. Issue 5 (12th February 2020)

• Record Type: Journal Article
• Authors: Schmitt, Philipp; Hlawitschka, Mark W.; Bart, Hans‐Jörg
• Other Names: Klemm Elias guestEditor.; Sauer Jörg guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 92:Issue 5(2020)
• Page Start: 589
• Page End: 594
• Publication Date: 2020-02-12
• Subjects: Centrifugal pump -- Horizontal pipe flow -- Liquid‐liquid dispersion -- Process engineering; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.201900105
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: The generation of dispersions with defined droplet size distributions is important for liquid‐liquid extraction. In this respect, the capability of a centrifugal pump to generate dispersions was investigated for different operating points. For the analysis of the mixing process, a centrifugal pump was designed translucent. High‐speed images reveal the mechanism of particle breakup. Optical measurement technology and image processing with neural networks were used to determine droplet size distributions. The influence of flow rate, rotational frequency and holdup are discussed for a paraffin oil‐water system. Abstract : Centrifugal pumps can be used as mixing device in liquid extractors. Besides pumping, dispersions with defined droplet size distributions can be generated in liquid‐liquid two‐phase flows. According to a change of operating parameters the influence on drop size distributions is given.