@article{64158,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>
                    Electrification offers a promising route to reduce CO
                    <jats:sub>2</jats:sub>
                    emissions in the chemical sector. In distillation, heat pump integration such as mechanical vapor recompression (MVR) can replace fossil‐based utilities, but column parameters like pressure drop should be accurately considered when assessing integration potential. This work discusses the effect of feed preheating and column pressure drop on MVR integration potential. The two binary separation tasks, methanol–water and benzene–toluene, are analyzed to identify energetically optimal preheater and MVR design. In addition, MVR integration in a bioethanol vacuum distillation sequence is evaluated for utility demand, CO
                    <jats:sub>2</jats:sub>
                    emissions, and economic feasibility under varying pressure drops, preheating configurations, and cost and emission scenarios.
                  </jats:p>}},
  author       = {{Hochhaus, Thorben and Siepmann, Sebastian and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  publisher    = {{Wiley}},
  title        = {{{Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression}}},
  doi          = {{10.1002/cite.70074}},
  year         = {{2026}},
}

@article{64159,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>Separation processes, such as distillation and stripping, are highly energy‐intensive. Typically, energy is supplied indirectly via a reboiler, which is often associated with heat losses. We present a preliminary theoretical evaluation of a novel concept to supply energy directly inside the column using heatable structured packings. These packings can be produced by multi‐material 3D printing, resulting in a conductive inner layer and an insulating outer layer. Functioning as electric resistance heaters, these packings serve as heating elements. In this numerical study, we compared different scenarios of energy supply along the height of the column, including uniform distribution, applying a temperature profile, and using or omitting a reboiler.</jats:p>}},
  author       = {{Lutters, Nicole and Brüne, Sascha and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  publisher    = {{Wiley}},
  title        = {{{Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes}}},
  doi          = {{10.1002/cite.70076}},
  year         = {{2026}},
}

@article{64876,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>This study shows the applicability of ultrasonic sensors for measuring two‐phase layer heights in sieve tray columns under dynamic operating conditions. Although these sensors are known for their precision in stationary systems, their reliability under fluctuating flow conditions has remained unclear. To validate their accuracy, ultrasonic measurements were compared with both automated image analysis via a Python algorithm and manual video evaluation. Results show that ultrasonic sensors maintain high precision at moderate gas loads and with small hole diameters. Increased gas loads and turbulence, however, reduced measurement accuracy due to signal scattering. The findings highlight the potential of ultrasonic sensing for real‐time, noninvasive monitoring in dynamic multiphase systems.</jats:p>}},
  author       = {{Breuer, Niklas and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  publisher    = {{Wiley}},
  title        = {{{Application of Ultrasonic Sensors for Determining the Height of Dynamic Two‐Phase Layers in Tray Columns}}},
  doi          = {{10.1002/cite.70087}},
  year         = {{2026}},
}

@inproceedings{65267,
  author       = {{Hollenhorst, Viola and Riese, Julia and Kenig, Eugeny Y.}},
  location     = {{Luzern, Schweiz}},
  title        = {{{Investigation of Surface Roughness Effects on Flow Patterns and Thermal Performance in Additively Manufactured Channels}}},
  year         = {{2026}},
}

@inproceedings{58539,
  author       = {{Franke, Patrick and Schubert, Markus and Hampel, Uwe and Kenig, Eugeny Y.}},
  booktitle    = {{Proceedings of the Dechema/VDI Jahrestreffen Fluidverfahrenstechnik 2025}},
  location     = {{Bochum}},
  title        = {{{Modeling reactive absorption in sandwich packings}}},
  year         = {{2025}},
}

@article{58672,
  author       = {{Al Trjman, Mohamad and Salten, Alexander Heinrich Johannes and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson and Riese, Julia and Kenig, Eugeny}},
  issn         = {{0143-7496}},
  journal      = {{International Journal of Adhesion and Adhesives}},
  publisher    = {{Elsevier BV}},
  title        = {{{Viscous fingering in adhesive bonding}}},
  doi          = {{10.1016/j.ijadhadh.2025.103960}},
  volume       = {{139}},
  year         = {{2025}},
}

@article{58759,
  author       = {{Dechert, Christopher and Kenig, Eugeny Y.}},
  issn         = {{0009-2509}},
  journal      = {{Chemical Engineering Science}},
  publisher    = {{Elsevier BV}},
  title        = {{{Influence of microstructures on liquid spreading on inclined plates: A CFD based study}}},
  doi          = {{10.1016/j.ces.2025.121317}},
  year         = {{2025}},
}

@inproceedings{58761,
  author       = {{Dechert, Christopher and Riese, Julia and Franke, Patrick}},
  location     = {{Bochum}},
  title        = {{{Untersuchung zur Vergleichbarkeit von verschiedenen Methoden zur Bestimmung der effektiven Phasengrenzflächen}}},
  year         = {{2025}},
}

@inproceedings{58762,
  author       = {{Dechert, Christopher and Riese, Julia}},
  location     = {{Bochum}},
  title        = {{{Bewertung des Potentiales der Elektrobenetzung für Trennkolonnen}}},
  year         = {{2025}},
}

@article{58165,
  author       = {{Neumann, Maximilian and Xia, Marc and Pöschmann, René and Merkel, Amelie and Staud, Rolf and Schneider, Hannes and Ehlert, Thomas and Paschold, Jürgen and Müller, Steffen and Harding, Laura-Selin and Neukäufer, Johannes and Hiller, Christoph and Ausner, Ilja and Gäbler, Ansor and Chromik, Reiner and Maćkowiak, Jan and Maćkowiak, Jerzy and Sola Cervera, Jose Luis and Geipel, Christian and Brinkmann, Jost and Bausa, Jürgen and Zeck, Sebastian and Hapke, Mark and Forner, Florian and Habla, Florian and Knaup, Manuel and Schulz, Robin and Schultes, Michael and Harlacher, Thomas and Lutters, Nicole and Kenig, Eugeny and Jasch, Katharina and Paschetag, Mandy and Scholl, Stephan and Grünewald, Marcus and Brösigke, Georg and Repke, Jens-Uwe and Klein, Harald and Rehfeldt, Sebastian}},
  issn         = {{1383-5866}},
  journal      = {{Separation and Purification Technology}},
  publisher    = {{Elsevier BV}},
  title        = {{{Towards reliable HETP values: Lessons learned from standardized separation efficiency measurements}}},
  doi          = {{10.1016/j.seppur.2025.131436}},
  volume       = {{361}},
  year         = {{2025}},
}

@inproceedings{60494,
  abstract     = {{Pillow-plate heat exchangers (PPHEs) represent a viable alternative to conventional shell-and-tube and plate heat exchangers. The waviness of their channels intensifies fluid mixing in the boundary layers and facilitates heat transfer. Applying secondary surface structuring can further enhance the overall thermo-hydraulic performance of PPHEs, thus increasing their competitiveness against conventional heat exchangers. In this work, streamlined secondary structures applied on the PPHE surface were studied numerically to explore their potential in enhancing near-wall fluid mixing. Computational fluid dynamics (CFD) simulations of single-phase turbulent flow in the inner PPHE channel were performed and pressure drop, heat transfer coefficients, and overall thermo-hydraulic efficiency were determined. The simulation results clearly demonstrate a favourable influence of secondary structuring on the heat transfer performance of PPHEs.</jats:p>}},
  author       = {{Afsahnoudeh, Reza and Riese, Julia and Kenig, Eugeny Y.}},
  booktitle    = {{Systems and Control Transactions}},
  issn         = {{2818-4734}},
  publisher    = {{PSE Press}},
  title        = {{{Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Streamlined Secondary Structures: A Numerical Analysis}}},
  doi          = {{10.69997/sct.178665}},
  volume       = {{4}},
  year         = {{2025}},
}

@inproceedings{60493,
  abstract     = {{Heat pumps play a crucial role in decarbonizing the chemical industry. The integration and sizing of heat pumps in chemical processes is a challenging task in multi-product chemical processes due to the fluctuating waste heat supply and heat demand. Integrating heat pumps may require a retrofit of the utility system. Mathematical optimization is a useful tool to tackle this challenge by enabling the analysis of correlation between relevant system parameters and equipment sizing. This study demonstrates the utilization of mathematical optimization and parameter studies for utility system equipment sizing addressing fluctuating heat supply and demand profiles.</jats:p>}},
  author       = {{Hochhaus, Thorben and Wloch, Johannes and Grünewald, Marcus and Riese, Julia}},
  booktitle    = {{Systems and Control Transactions}},
  issn         = {{2818-4734}},
  publisher    = {{PSE Press}},
  title        = {{{A Data-Driven Conceptual Approach to Heat Pump Sizing in Chemical Processes with Fluctuating Heat Supply and Demand}}},
  doi          = {{10.69997/sct.196662}},
  volume       = {{4}},
  year         = {{2025}},
}

@article{62937,
  abstract     = {{Sandwich packings are assembled from two conventional structured packings with different geometrical surface areas stacked alternatingly within a separation column. When operated under partially flooded conditions, they provide significant mass transfer improvement compared to common structured packings. In this work, a rate-based model including novel mass transfer correlations is presented and validated using a comprehensive experimental database for the reactive absorption of CO2 into aqueous monoethanolamine. The proposed rate-based approach is capable of accounting for axial dispersion, thereby enabling the evaluation of the effect of liquid-phase backmixing on the mass transfer performance. The validated rate-based model is used to evaluate the separation performance of sandwich packings. Compared with structured packings, up to 10 % higher mass transfer rates are obtained.}},
  author       = {{Franke, Patrick and Schubert, Markus and Hampel, Uwe and Kenig, Eugeny Y.}},
  issn         = {{0009-2509}},
  journal      = {{Chemical Engineering Science}},
  keywords     = {{Sandwich packings Structured packings Rate-based approach Model validation Ultra-fast X-ray tomography}},
  publisher    = {{Elsevier BV}},
  title        = {{{A rate-based model for reactive separation columns with sandwich packings}}},
  doi          = {{10.1016/j.ces.2025.122681}},
  volume       = {{321}},
  year         = {{2025}},
}

@inproceedings{52403,
  author       = {{Al Trjman, Mohamad and Meschut, Gerson and Salten, Alexander Heinrich Johannes and Kenig, Eugeny Y.}},
  location     = {{Köln}},
  title        = {{{Methodenentwicklung zur Simulation des Viscous Fingering in Klebverbindungen von stahlintensiven Mischbaustrukturen}}},
  year         = {{2024}},
}

@inproceedings{52573,
  author       = {{Dechert, Christopher and Kenig, Eugeny}},
  location     = {{Bochum}},
  title        = {{{Der Einfluss von Mikrostrukturen auf die Flüssigkeitsausbreitung in strukturierten Packungen}}},
  year         = {{2024}},
}

@inproceedings{52579,
  author       = {{Hami Dindar, Iman and Lutters, Nicole and Kenig, Eugeny Y.}},
  location     = {{Ruhr-Universität Bochum}},
  title        = {{{Wässrige Glucosaminlösung als neues Lösungsmittel zur CO2-Abscheidung}}},
  year         = {{2024}},
}

@article{55368,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>A comprehensive investigation of the potential of aqueous glucosamine solutions as an eco‐friendly solvent for CO<jats:sub>2</jats:sub> capture was performed. It includes an experimental study in a pilot plant setup and a theoretical analysis with a rate‐based model. The model was validated against the measured column profiles of temperature and CO<jats:sub>2</jats:sub> concentration in both liquid and gas phases. Model‐based parameter sensitivity studies revealed inherent challenges for an effective absorption process. A slow reaction rate and suboptimal chemical equilibrium conditions were identified as key limitations, restricting the absorption efficiency and CO<jats:sub>2</jats:sub> loading capacity of the glucosamine solution. Furthermore, an analysis of the dissociation constant of this novel absorbent was performed and its significance with respect to the (limited) performance, capability, and efficiency evaluation was highlighted.</jats:p>}},
  author       = {{Hami Dindar, Iman and Lutters, Nicole and Kenig, Eugeny Y.}},
  issn         = {{0001-1541}},
  journal      = {{AIChE Journal}},
  publisher    = {{Wiley}},
  title        = {{{Carbon dioxide capture by aqueous glucosamine solutions: Pilot plant measurements and a theoretical study}}},
  doi          = {{10.1002/aic.18541}},
  year         = {{2024}},
}

@inproceedings{56194,
  author       = {{Afsahnoudeh, Reza and Riese, Julia and Kenig, Eugeny Y.}},
  booktitle    = {{World Congress on Mechanical, Chemical, and Material Engineering}},
  issn         = {{2369-8136}},
  location     = {{Barcelona}},
  publisher    = {{Avestia Publishing}},
  title        = {{{A Numerical Analysis of Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Ellipsoidal Secondary Structures}}},
  doi          = {{10.11159/htff24.145}},
  year         = {{2024}},
}

@inproceedings{56601,
  author       = {{Franke, Patrick and Devasthali, Oorv and Schubert, Markus and Hampel, Uwe and Kenig, Eugeny Y.}},
  location     = {{Dresden}},
  title        = {{{Experimental determination of liquid-side mass transfer coefficients in sandwich packings in the preloading zone and above the loading point}}},
  year         = {{2024}},
}

@article{52229,
  author       = {{Bruns, Bastian and Gross, Michel and Grünewald, Marcus and Bertsch, Valentin and Riese, Julia}},
  issn         = {{0959-6526}},
  journal      = {{Journal of Cleaner Production}},
  keywords     = {{Industrial and Manufacturing Engineering, Strategy and Management, General Environmental Science, Renewable Energy, Sustainability and the Environment, Building and Construction}},
  publisher    = {{Elsevier BV}},
  title        = {{{A multi-step framework for the design of a flexible power-to-methane process}}},
  doi          = {{10.1016/j.jclepro.2024.141434}},
  year         = {{2024}},
}