Reactive Bubbly Flows: Final Report of the Dfg Priority Program 1740

ISBN-13: 9783030723637 / Angielski / Miękka / 2022

Schlüter, Michael

Opis

This book presents experimental and numerical methods that have been developed during six years of targeted research within the DFG priority program SPP 1740, elucidating the interaction between hydrodynamics, mass transfer and transport as well as chemical reactions in bubbly flows. A special feature of this book is its focus on an interdisciplinary research approach with contributions from chemistry, mathematics and engineering sciences, providing enhanced or novel experimental methods, models and numerical simulations. This book provides fundamental knowledge to students about the current state of knowledge regarding transport processes in reactive bubbly flows as well as to scientists, emphasizing pressing research questions and further current demands for fundamental research. Engineers from the chemical industries will get valuable insights into relevant gas-liquid processes and benefit from recommendations concerning the design of gas-liquid reactors and laboratory experiments for studying the performance of gas-liquid reactions in their own lab.

Spis treści

1. Introduction

2. Description of the main topics

2.1 Chemical Systems for the investigation of Reactive Bubbly Flows:

2.1.1 Laurini, L.; Hoffmann, A.; Herres-Pawlis, S.: Control of the formation and

reaction of copper-oxygen/nitrogen monoxide adduct complexes in multiphase

streams

2.1.2. Aas, B.; Oßberger, M.; Klüfers, P.: In-situ characterizable nitrosyl-iron

complexes with controllable reactivity in multiphase reaction media

2.1.3 Miska, A.; Schindler, S.: Formation, reactivity tuning and kinetic

investigations of iron "dioxygen" intermediate complexes and derivatives in

multiphase flow reactions

2.2. Experimental Methods for reactive bubbly flows:

2.2.1 Haase, K.; Kähler, C.: Analysis of mixing und mass transport processes in

bubble swarms under the influence of bubble-induced turbulence

2.2.2 Kipping, R., Hampel, U.: Experimental studies on the hydrodynamics, mass

transfer and reaction in bubble swarms with ultrafast X-ray tomography and local

probes

2.2.3 Kemper, P.; Thöming, J.: Spatially resolved experimental analysis and

modeling of mass transfer from rising gas bubbles under influence of swarm

turbulence with superimposed chemical reaction

2.3.4 Guhathakurta, J.; Grottke, D.; Simon, S.; Rinke. G.: Investigation of the

influence of transport processes on chemical reactions in bubble flows using spaceresolved

in-situ analytics and simultaneous characterization of bubble dynamics in

real-time

2.3 Experiments in Reactive Bubbly Flows

2.3.1 Gast, S.; Nieken, U.: Exemplary determination and verification of kinetics of

a gas-liquid reaction Simulation und Modelling

2.3.2 Merker, D.; Kraume, M.: Mass transfer around gas bubbles in reacting liquids

2.3.3 Kexel, F.; Kastens, S.; Timmermann, J.; Schlüter, M.: Experimental

investigation of reactive bubble flows-influence of boundary layer dynamics on

mass transfer and chemical reactions

2.3.4 Ziegenbalg, D.: Photochemical reactions as switchable tools for the

fundamental investigation of mass transfer processes in gas-liquid-flows

2.3.5 Zähringer, K.: Experimental characterization of gas-liquid transport processes

in a reaction bubble column using a neuralization reaction

2.3.6 Brücker, C.: Combined volumetric PIV-LIF measurements of the correlation

between bubble cluster dynamics and mixing in a co-moving frame of a

stable/unstable bubble plume

2.4 Numerical Methods for Reactive Bubbly Flows

2.4.1 Weiner, A.; Bothe, D.: Direct numerical simulation of multi-physics reactive

mass transfer at single multiple bubbles

2.4.2 Hillenbrand, D.; Marschall H.: Development and application of a direct

numerical method for reactive transport processes in bubble systems

2.4.3 Muniz, M.; Sommerfeld, M.: Modelling the influence of bubble dynamics on

motion, mass transfer and chemical reaction

2.4.4 Mierka, O.; Turek, S.: Numerical simulation techniques for the efficient and

accurate treatment of local fluidic transport processes together with chemical

reactions

2.4.5 Rzehak, R.: Euler-Euler-Modellierung reaktiver Strömung in Blasensäulen

2.4.6 Hlawitschka, M.: Multiscale investigations of reactive bubble flows …

3. Determination of kinetics for reactive bubbly flows using superfocus mixers

(Herres-Pawlis, Rinke, Simon, Turek, Schlüter)

4. Visualization and quantitative analysis of consecutive reactions in Taylor bubble

flows (Schlüter, Herres-Pawlis, Klüfers, Turek)

5. Chemical reactions on freely ascending single bubbles (Bothe, Kraume, Marschall,

Herres-Pawlis, Klüfers, Schindler, Schlüter)

6. Chemical reactions in bubbly flows (Hampel, Tuttlies, Kähler, Simon, Sommerfeld,

Hlawitschka, Rzehak)

7. Investigation of reactive bubbly flows in technical apparatuses (Nieken, Herres-

Pawlis, Schlüter)

8. Further demand in fundamental research (Schlüter, Herres-Pawlis, Bothe, Nieken)