SCIENCE@home

Reactive Mass Transfer of Single NO Bubbles and Bubble Bouncing in Aqueous Ferric Solutions – A Feasibility Study

M. Hlawitschka,Martin Oßberger,C. Backes,P. Klüfers,H. Bart

Published 2017 in Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles

ABSTRACT

Reactive bubble columns are widely used in the chemical, petrochemical, biochemical and metal industries. While the reactive mass transfer around a single spherical shaped bubble is quite well described in literature, the influence of hydrodynamic interactions, such as bubble bouncing or coalescence on mass transfer – with and without chemical reaction – is not well understood. As to this, high resolution simulations and sophisticated experimental analysis based on high-speed camera images and local color changes gives a new firm basis. In this work, a new system is presented, based on Nitric Oxide (NO) gas absorbed in a FeII -solution. The reaction rate can be adjusted by the addition of ligands and the resulting local color change is detected. The impact of the colliding bubbles leads to a deformation of the bubble shapes and creates a fast movement of the bubble interfaces, which, finally, leads to an increased mass transfer. The results of five tested ligands reveal the high potential of the reactive FeII (NO) system to investigate basic phenomena affecting yield and selectivity of mixing-sensitive chemical reactions.

PUBLICATION RECORD

  • Publication year

    2017

  • Venue

    Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles

  • Publication date

    2017-03-01

  • Fields of study

    Chemistry, Engineering, Environmental Science

  • Identifiers
    DOI 10.2516/OGST/2017006
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

CITATION MAP

EXTRACTION MAP

CLAIMS

  • No claims are published for this paper.

CONCEPTS

  • No concepts are published for this paper.

REFERENCES

Showing 1-46 of 46 references · Page 1 of 1

CITED BY

Showing 1-13 of 13 citing papers · Page 1 of 1