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2020

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December 2020 - Merry Christmas and a happs new year!

The year 2020, which is affected by the Corona pandemic, is ending. Although there were some hurdles due to the changeover to digital teaching, as well as digital lectures by doctoral candidates and graduate students had to be newly established, we can look back on a successful year.

We congratulate Waldemar Krieger, Felix Reichmann, and Sebastian Soboll on achieving the doctorate. The Laboratory of Equipment Designs takes the opportunity to say goodbye to Lutz Kaiser and Waldemar Krieger, who left the group this summer, and we wish them the best for their future. On the other hand, we would like to welcome again our new research associates Stefan Höving, Robin Dinter, Jonas Oeing, and Laura Neuendorf who will reinforce the team in the ongoing years. At the end of the year, we would like to thank our supporters, the mechanical workshops, the electric workshops, the glass blowing manufacturers, and particularly the students who do research with us together and the alumni who always support us with advice.

We bid farewell in this very digital year with a digital Christmas party and wish you a Merry Christmas and a happy and healthy New Year!

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November 2020 - AD participates in consortium NFDI4Cat

With catalysts chemical reactions are accelerated and become more efficient in the consumption of energy and resources. They represent the most powerful methodological tool to reduce energy intensity of many industrial processes and reducing their environmental burden. Catalysis is a complex field of science so much data is produced during research handling different kinds of information on a process. To get a better understanding and develop new, better catalysts, a unified view on catalysis is needed. The aim of NFDI4Cat is to provide this unified view. This is to be achieved by an ontology which interconnects different type of data in a machine and human comprehendible way (see figure).

Contact: Alexander Behr

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October 2020 - Two doctoral examinations at AD

We congratulate Felix Reichmann and Sebastian Soboll on the successful completion of their doctoral examination.
Mr. Reichmann investigated microreactors and his dissertation is entitled "Continuous Reaction Calorimetry for Intensified Reaction Systems". Mr. Soboll examined stirred pulsed extraction columns with regard to their scale-up behaviour. His doctoral thesis is titled "Hydrodynamik und Stofftransport in gerührten Extraktionskolonnen mit simultaner Pulsation".
We would like to thank both of them for their time with us and wish them all the best for the future.

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September 2020 - Lehrstuhlausflug der AD

Am Donnerstag, den 27.08.2020 hatten wir unter Coronabedingungen unseren diesjährigen Lehrstuhlausflug der AD. Bei gutem Wetter starteten wir gegen 9 Uhr mit einer wunderschönen Radtour quer durch Dortmunds Natur, Richtung Phönixsee. Nach einer wohlverdienten Pause und einer leckeren Stärkung radelten wir weiter zum Phönixwest Gelände und erwarteten das Highlightprogramm des Tages, den Skywalk! Eine faszinierende Tour auf der Hochofenanlage von Phönix West. Über ein Gasrohr spazierten wir in 25 m Höhe ins Innere des alten Geländes, besichtigten den Hochofen und hörten unserer Tourführerin Heike Regener begeistert zu. Am Ende wurden wir mit einer grandiosen Aussicht aus fast 70 m Höhe auf die Industriegeschichte Dortmunds belohnt. Ein rundum gelungener Tag! Besser hätten unsere 4 „Neulinge“, die Doktoranden Laura Neuendorf, Jonas Oeing, Stefan Höving und Robin Dinter den Ausflug nicht planen können! Vielen Dank!

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August 2020 - Artificial Intelligence enters the process industry

As part of the KEEN project a comprehensive AI project starts at the Laboratory of equipment design. Methods for AI-based optimization and engineering of process plants are developed and analyzed. While one major research focus is based on image recognition of liquid-liquid systems, another concentrates on the development of AI-supported HAZOP analyses. This allows the extraction of semantic relationships by artificial neural networks and thus makes them available for future safety considerations (see figure).

Contact: Laura Neuendorf, Jonas Oeing

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July 2020 - Methodology for transferring (bio-)chemistry from Batch to Continuous Flow

The coiled flow inverter (CFI) is a promising reactor design providing enhanced heat and mass transfer, narrow residence time distribution, and rapid mixing for a methodology for the transfer of (bio-)chemical reactions in batch mode to two-phase continuous flow. First, this methodology is used for current development of a droplet-based reaction screening system, which was first tested with an automated Paal-Knorr pyrrole synthesis as model reaction. Second, we investigated the bio-catalyzed oxidation of ABTS by the enzyme laccase in a straight capillary for process development in a CFI. An optical evaluation method for determination of reaction rate was used. Comparing Michaelis-Menten kinetic of the batch reaction and the continuous reaction in a capillary, the results show that the batch reaction can be mapped to the capillary setup.

Corresponding publication: Jens Bobers, Julia Gruehn, Stefan Hoeving, Tobias Pyka, Norbert Kockmann Two-phase Flow in Coiled Flow Inverter – Process Development from Batch to Continuous Flow. acs Org. Process Res. Dev. DOI: doi.org/10.1021/acs.oprd.0c00152

Contact: Julia Grühn, Jens Bobers

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June 2020 – Doctoral examination with protective mask

In times of corona, new solutions for exams are needed, including new formats for doctoral examinations. In compliance with the minimum distance and safety regulations, the faculty of BCI decided to permit doctoral examinations in attendance of doctoral candidate and assessors. External assessors as well as faculty members can participate via conferencing services such as Zoom or Webex to ensure the public form of examination.

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May 2020 - Vorbereitung von digitaler Lehre im SoSe 20

Aufgrund der Corona-Pandemie stellt die Arbeitsgruppe Apparatedesign die Lehre auf digitale Inhalte um. Für Vorlesungen wie Good Manufacturing Practice (GMP), Sicherheitstechnik und Apparatetechnik oder die englisch-sprachigen Angebote Drops, Bubbles and Films werden die Vorlesungsfolien vertont. Videos mit den Rechenwegen und Lösungen werden für die Übung in Apparatetechnik produziert, die zusammen mit digitalen Sprechstunden auch einen reibungslosen Übungsbetrieb sicherstellen werden.

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April 2020 - Whole team of Equipment Design is working at home

Due to the current corona crisis, the AD team is staying at home. The laboratory will remain closed and lectures and exercises will be digitalized. Many of those responsible persons are currently looking for solutions and best practices for implementing digital teaching. Please check the pages of the respective lecture for more information.
Discussions with students will take place via video conference, deadlines for final theses have been extended and submissions will only be made digitally. If you have any questions about courses or organizational matters, please contact the responsible persons by email.

#stayathome

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March 2020 - Design of an Automated Reagent-Dispensing System for Reaction Screening and Validation with DNA-tagged Substrates

In cooperation with the medicinal chemistry, an automated system for dispensing reagents for DNA-encoded chemistry based on an open-source 3D printer model was developed. It was validated by applying a complex three-component Povarov reaction from DNA-tagged aldehydes, electron-rich olefins, and anilines to DNA-tagged hexahydropyrroloquinolines. A surface-active polymer was used to mediate the reaction between DNA-tagged aldehydes, the hydrophobic anilines, and the olefin. We tested the reaction with an aniline and olefin, each dissolved as stock in five organic solvents. Head-to-head comparison of manually performed and automatically performed experiments by the robot showed that the ADoS reproduced the manually pipetted reactions faithfully and reached yields above 90 % with a polymer concentration of 500 µM.

Contact: Jens Bobers

Corresponding publication: Bobers, J.; Klika Škopić, M.; Dinter, R.; Sakthithasan, P.; Neukirch, L.; Gramse, C.: Weberskirch, R.; Brunschweiger, A.; Kockmann, N. Design of an Automated Reagent-Dispensing System for Reaction Screening and Validation with DNA-tagged Substrates. ACS Comb. Sci. DOI: 10.1021/acscombsci.9b00207

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February 2020 - Design and Hydrodynamic Characterization of a Draft Tube Baffle Tank for Lab‐Scale

For process development on lab‐scale, it is necessary to have equipment that represents the industrial apparatuses as similar as possible to offer short time‐to‐market. Accordingly, a draft tube baffle (DTB) crystallizer was scaled down from typical m3‐scale to 1 L filling volume and manufactured by the glass blowing workshop of TU Dortmund University. The suspension characteristics were determined for fluidized crystals in saturated solution. For further characterization of the DTB tank, the residence time of the liquid and solid phases were experimentally determined for the continuous operation mode. Additionally, the classifying behavior of the particles in the DTB was investigated. A draft tube baffle tank was developed for lab‐scale operation. The hydrodynamic behavior was investigated by analyzing the residence time distribution of the liquid and solid phase as well as the suspension and classification behavior.

Contact: Mira Schmalenberg

Corresponding publication: M. Schmalenberg, A.-K. Nocon, N. Kockmann, Chemie Ingenieur Technik, Design and Hydrodynamic Characterization of a Draft Tube Baffle Tank for Lab‐Scale, 2020, https://doi.org/10.1002/cite.201900078

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January 2020 - Exkursion Emsland Stärke

Im Rahmen der Gruppenarbeit haben 9 Studierende inklusive ihrer Betreuer Julia Schuler und Jens Bobers und Prof. Kockmann am 17.01.20 die Emsland Group am Standort Emlichheim besucht. Großen Anklang fand die Endpräsentation der Gruppe mit dem Thema „Proteingewinnung aus der Kartoffelstärkeproduktion“ bei diversen Mitgliedern der Emsland Group aus Forschung & Entwicklung, Produktion und Technika. Die Gruppe besichtigte die Produktionsanlage zur Gewinnung von Kartoffelstärke und hat einen spannenden Einblick in Labore und Technika zur Entwicklung von Lebensmitteln und technischen Produkten basierend auf modifizierter Stärke erhalten.

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