Digital Image Processing of Gas‐Liquid Reactions in Coiled Capillaries. Issue 5 (15th March 2021)

• Record Type: Journal Article
• Authors: Grühn, Julia; Vogel, Marius; Kockmann, Norbert
• Other Names: Freund Hannsjörg guestEditor.; Sauer Jörg guestEditor.; Wachsen Olaf guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 93:Issue 5(2021)
• Page Start: 825
• Page End: 829
• Publication Date: 2021-03-15
• Subjects: Capillary reactor design -- Color‐change reaction -- Digital image processing -- Gas‐liquid reaction -- Taylor flow; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.202000240
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: In the course of the investigation of biocatalytic gas‐liquid reactions with color change in straight and coiled capillaries, a non‐invasive evaluation method is needed to determine reaction progress and selectivity. Correlations between hydrodynamics, mass transfer phenomena, and reaction kinetics are in the focus of our work. For this purpose, it is necessary to investigate the flow and evaluate the reaction progress without disturbing the flow. Digital image processing (DIP) is presented as a suitable optical evaluation method for reactions with color change in capillary reactor designs. The developed DIP program is independent from the capillary reactor design, applicable to differently colored systems, and can analyze up to three different species simultaneously. Abstract : Digital image processing (DIP) is presented as an optical evaluation method. This non‐invasive method is needed to study biocatalytic gas‐liquid reactions with color change in straight and coiled capillaries. These investigations will help to get more information about mass transport phenomena in two‐phase Taylor flow.