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Approaches to Recycling of Engine Air Filters Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-29 Christian Wilke, Alexandra Kaas, Urs Peuker
It is becoming increasingly important to be able to recycle mass‐produced products such as engine air filters. Different processes were tested to investigate whether it is possible to recycle the composite material. Thereby, comminution with cutting stress is particularly suitable for disintegration. Next on, the filter medium could be separated very well with the help of a zig‐zag separator. The sorting
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Shaping the Future of Green Chemistry: A Fraunhofer Initiative Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-27 Stefan Löbbecke
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Artificial Neural Networks for Gas‐Liquid Flow Regime Classification in Small Channels Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-25 Stefan Haase, Henry May, Andreas Hiller, Markus Schubert
The reliable design of multiphase micro‐structured apparatus requires a precise knowledge of the internal flow regime. Previous research indicated that classifiers based on artificial neural networks (ANN) are relatively simple to develop and provide a reasonable accuracy when trained with data for specific inlet designs. This paper introduces advanced ANN classifiers capable of predicting all relevant
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Kolonnen‐Fouling: Präventivmaßnahmen finden mit der Standardapparatur Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-18 Hansjürgen Winterbauer
ZusammenfassungUnerwünschte Belagbildung auf wärme‐ und/oder stoffübertragenden Oberflächen (Fouling) führt auch in Kolonnen zu Problemen beim Betrieb. Durch erhöhten Energiebedarf und Betriebsstörungen trägt Kolonnen‐Fouling damit auch zur Klimaerwärmung bei. Die im Rahmen des BMWK geförderten Verbundvorhabens SAMARA neu entwickelte Standardapparatur zur Untersuchung von Kolonnen‐Fouling ermöglicht
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Comminution of Metal–Polymer Composites for Recycling Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-18 Sandra Boekhoff, Harald Zetzener, Arno Kwade
ZusammenfassungTo increase the recycling rate of components used in electric vehicles, metal–polymer composites are to be separated. As a basis, samples of polymers are ground in a hammer mill to analyze the influence of various pretreatments. The resulting particle size distributions are related to the mechanical properties of the polymers. The results can be used for a comminution of a metal–polymer
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Depolymerization of PET Fibers from Textile Blends and Recovery of Terephthalic Acid Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-18 Leonard Both, Mandy Paschetag, Carsten Eichert, Stephan Scholl
The hydrolytic depolymerization of poly(ethylene terephthalate) (PET) fibers with solid sodium hydroxide was investigated. The study presents an innovative recycling approach for the recovery of virgin‐quality terephthalic acid (TA) from textile blends consisting of PET and elastane fibers. PET fibers were depolymerized for 5 min at 140 °C. An internal mixer served as an investigation platform for
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Modeling Enzymatic Cascade Reactions Immobilized in Plug‐Flow Reactors for Flow Biocatalysis Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-17 Leandros Paschalidis, Sara Arana‐Peña, Volker Sieber, Jakob Burger
Flow biocatalysis has emerged as a promising technology for the sustainable production of chemicals. Multiple immobilized enzymes are often used as biocatalysts to perform enzymatic cascade reactions in flow biocatalytic systems. When designing packed‐bed reactors with multiple immobilized enzymes, the enzymes are distributed in porous particles, and the porous particles are distributed in catalyst
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Continuous Kolbe Electrolysis Using an Electrochemical Microreactor, Product Separation, and Electrolyte Recycling Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-17 Nils Baumgarten, Bastian J. M. Etzold, Patrick Löb, Juri Magomajew, Athanassios Ziogas
With our electrochemical microreactor and the use of an aqueous electrolyte it was possible to realize continuous Kolbe electrolysis including separation of the organic product phase, recycling of the aqueous electrolyte, and automated reconcentration of fatty acids based on inline Raman measurements. Electrolysis experiments revealed that the addition of aqueous KOH is essential to decrease the KHCO3
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A System for the Combined Carbon Capture and Utilization to Produce Renewable Methanol from Biogas Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-16 Emanuele Moioli, Tilman Schildhauer
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How to Measure the Greenness of Chemicals? A Case Study on Butadiene Production Applying Green Metrics and Life Cycle Assessment Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-11 Daniel Maga, Janek Röttgen, Jan Blömer, Zhengxuan Wu, Marc Greuel, Markus Hiebel, Barbara Zeidler-Fandrich, Sebastian Eilebrecht
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Experimental Analysis of Inductive Heating of Catalytic Beds Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-09 Daniel Kleschew, Ute Tuttlies, Ulrich Nieken
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Catalytic Conversion of Ethanol with Conventional and Ohmic Heating in Comparison Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-09 Marc Greuel, Clara Maria Watermann, Kimberley Kim Matschuk, Marc Marcel Krisam, Andreas Menne, Barbara Zeidler‐Fandrich
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Process Cascade for the Production of Green Polymers from CO2 and Electric Energy Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-09 Jonathan Thomas Fabarius, Carsten Pietzka, Dhananjai Pangotra, Benjamin Wriedt, Luciana Vieira, Carina Sagstetter, Melanie Speck, Athanassios Ziogas, Nils Baumgarten, Hans‐Joachim Kost, Patrick Löb, Katja Patzsch, Catherine Bernau, Sarah Boeringer, Davide Pico, Antje Lieske, Marcus Vater, Ulrich Wendler, Arne Roth
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Multi‐Criteria Shape Optimization of Flow Fields for Electrochemical Cells Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-09 Sebastian Blauth, Marco Baldan, Sebastian Osterroth, Christian Leithäuser, Ulf‐Peter Apfel, Julian Kleinhaus, Kevinjeorjios Pellumbi, Daniel Siegmund, Konrad Steiner, Michael Bortz
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Photocatalytic Nitrate Reduction over TiO2 Layers on Glass Rings Generated by Dip‐Coating Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-09 Luisa Becker, Miranda Guci, Michael Schwidder
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Electrochemical Hydrogenation of Aliphatic Aldehydes and Acids using Pentlandite Catalysts Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Julian T. Kleinhaus, Salman Umer, Kevinjeorjios Pellumbi, Leon Wickert, Jonas Wolf, Kai junge Puring, Daniel Siegmund, Ulf‐Peter Apfel
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Continuous Synthesis of Diazo Acetonitrile: From Experiments to Physical and Grey‐Box Modeling Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Marco Baldan, Sebastian Blauth, Dušan Bošković, Christian Leithäuser, Alexander Mendl, Ligia Radulescu, Maud Schwarzer, Heinrich Wegner, Michael Bortz
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Multi‐Scale Simulation of a Novel Integrated Reactor for Hydrogen Production by Ammonia Decomposition Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Sebastian Blauth, Julie Damay, Sebastian Osterroth, Christian Leithäuser, Christian Hofmann, Gunther Kolb, Martin Wichert, Konrad Steiner, Michael Bortz
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Assessment of Chemical Products and Processes: Green Metrics and Life Cycle Assessment – A Comparison Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Jan Blömer, Daniel Maga, Janek Röttgen, Zhengxuan Wu, Markus Hiebel, Sebastian Eilebrecht, Sebastian Jentsch, Natascha Eggers
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Effect of Electrolyte Composition and Mass Transport on Electrochemical Hydrogenations of a Terminal Alkynol Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Leon Wickert, Kevinjeorjios Pellumbi, Julian T. Kleinhaus, Jonas Wolf, Kai junge Puring, Daniel Siegmund, Ulf‐Peter Apfel
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Comparison of the Prediction of the Temperature Profile in an Ohmic Reactor on Different Modeling Scales Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Christian Geitner, Oleg Iliev, Kimberley Matschuk, Andreas Menne, Philippos Nakos, Sebastian Osterroth, Martin Peters, Konrad Steiner, Jochen Zausch
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Flexible PLA Copolymers with Low Melt Flow Index for Blown Film Applications Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Benjamín Rodríguez Hernández, Antje Lieske
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Evaluation of 2,5‐Furandicarboxylic Acid as Building Block for Unsaturated Polyester Resins Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Brijesh Savalia, Michael Rabenstein, Antje Lieske, Daniel Zehm
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Process Design for the Directly Coupled Production of Methanol and Formaldehyde Based on CO2 Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-04-01 Pia Münzer, Ulrich Arnold, Jörg Sauer
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Diazoacetonitrile: Safe and Green Synthesis through Continuous Processing Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-30 Dušan Bošković, Stefan Loebbecke, Slobodan Panić, Calogero Giancarlo Piscopo, Ligia Johanna Radulescu, Maud Schwarzer
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Design of Induction Heatable Carbon‐Based Foams for Catalysis Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-27 Jonathan Maier, Marc Greuel, Martin Hausruckinger, Maximilian Oppmann, Clara Waterman, Benedikt Schug
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Ein neues Konzept zur CO2‐Bereitstellung aus Luft als Gaswäsche mit ionischen Flüssigkeiten Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-22 Peter Kussin, Tobias Stegmaier, Christian Müller, Friedemann Mörs, Frank Graf
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Quantitative Beschreibung der partiellen Kuchenresuspendierung bei der Filterkuchenwäsche im Labormaßstab Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-22 Hendrik Simon Henn, Florian Sauer, Urs A. Peuker, Bernhard Hoffner
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NaWuReT Colloquium: Career Pathways and Opportunities for Reaction Engineers in Industry Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-22 Bjarne Kreitz, Marion Börnhorst, Jens Friedland, Emanuele Moioli
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„Immer über den Tellerrand hinausschauen” Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-19 Mehrdad Ebrahimi, Denise Salzig
No abstract.
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Production of Galacto-Oligosaccharides by Enzymatic Membrane Reactors Using Free β-Galactosidase Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-11 Cao Teng, Arijit Nath, Ildikó Galambos, Zoltán Kovács
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Separation and Purification of Vanillin and Syringaldehyde from an Oxidized Kraft Liquor – A Mini Review Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-11 Meilia Yoseba Tarigan, Mehrdad Ebrahimi
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Wheat bran extract as a source of amino compounds and sugar for biotech processes Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-11 Stefan Hanstein
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Production of Fructo-Oligosaccharides in Membrane Bioreactor Using Rotating Ceramic Membrane Disc Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-07 Rong Fan, Dennis Tissen, Xinwei Su, Oliver Schmitz, Mehrdad Ebrahimi, Nicolas A. P. Maguire, Peter Czermak
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Separation of Biobased Carboxylic Acids by Aqueous Phase Nanofiltration Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-07 Lukas Rübenach, Niklas Kruse, Marcus Rose
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Impact of Pickering Emulsions Composition on Lipase Catalyzed Peroxyacetic Acid Synthesis Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-04 Lemuel Adomi, Anja Drews
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Process Intensification by Inoculating Antibody Production Bioreactors Directly from Cryovials Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-03-04 Jan Ott, Vivian Ott, Peter Neubauer, Dieter Eibl, Regine Eibl
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Fractionation of Glycans from Hot-Water Extracts with Ceramic Ultrafiltration Membranes Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-26 Marius Wolf, Stefan Hanstein
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Experimental Heat Transfer Coefficients for Zeotropic Mixture Condensation of Hexamethyldisiloxane/Octamethyltrisiloxane and Ethanol/Hexamethyldisiloxane Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-23 Conrad Zimmermann, Nico Lubos, Stephan Kabelac
Legal requirements for refrigerants necessitate a continuous development of these fluids, also focusing on mixtures. This article contributes three aspects to the ongoing research: (1) Experimental mean heat transfer coefficients were determined for the condensation of two novel zeotropic mixtures, hexamethyldisiloxane (MM)/octamethyltrisiloxane and ethanol/MM, gathered for filmwise condensation on
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Nachruf auf Prof. Dr.‐Ing. Dr. h.c. mult. Manfred H. Pahl (1941–2023) Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-22
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Nichts ist so beständig wie der Wandel (Heraklit) Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-22 Sabine Wiederhold, Rosemary Puls, Arno Knappschneider
No abstract.
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Review on the Impact of Impeller‐induced Hydrodynamics on Suspension Cell Culture for Production of Biopharmaceuticals Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-20 Ralf Pörtner, Fabian Freiberger, Johannes Möller
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Comparative Analysis of pH Prediction Routines in ADM1 and a Specialized Water Chemistry Simulator Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-19 Pascal Kosse, Tanja Hernández Rodríguez, Björn Frahm, Manfred Lübken, Marc Wichern
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Comparative Study of Fluid Dynamic Stress on Aspergillus niger and Model Systems Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-16 Philipp Waldherr, Chrysoula Bliatsiou, Lutz Böhm, Matthias Kraume
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Dry Recycling of Lithium-Containing Material by Forced Tribocharging and Electrostatic Separation Chem. Ing. Tech. (IF 1.9) Pub Date : 2024-02-13 Mehran Javadi, Mohamed Abohelwa, Annett Wollmann, Alfred P. Weber