@article{47579,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Die chemische Industrie sieht sich mit gravierenden Herausforderungen konfrontiert: Die Einhaltung der Klimaschutzziele, die Auswirkungen der Energiewende und die zunehmende Bedeutung der Kreislaufwirtschaft treffen die gesamte Wertschöpfungskette. Lösungsansätze von der Prozess‐ über die Apparateebene bis hin zum Einzelphänomen sind notwendig, um die Wettbewerbsfähigkeit dieses zentralen Industriezweigs zu erhalten. In diesem Beitrag werden aktuelle Entwicklungen und zukünftige Handlungsfelder in der Trenntechnik, die für diese Herausforderungen wertvolle Beiträge leisten können, dargestellt.</jats:p>}},
  author       = {{Riese, Julia and Hoff, Andreas and Stock, Jürgen and Górak, Andrzej and Grünewald, Marcus}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{7}},
  pages        = {{818--830}},
  publisher    = {{Wiley}},
  title        = {{{Separation Units 4.0 – Trennapparate heute und morgen}}},
  doi          = {{10.1002/cite.202000032}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47572,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Due to high energy‐intensive processes and a dependence on carbon‐based materials, the process industry plays a major role in climate change. Therefore, the substitution of fossil resources by bio‐based resources is indispensable. This leads to challenges arising from accompanying changes of the type, amount and location of resources. At the same time, transformable production systems are currently in the focus of research addressing the required flexibility. These systems which consist of modular production and logistics units offer the possibility to adapt flexibly in volatile conditions within dynamic supply chains. Hence, this work compiles elements for environmental sustainability, which minimize the carbon footprint in the process industry: transformable production systems, the utilization of bio‐based resources, carbon dioxide and renewable energy as well as the application of these elements in decentral production networks. Finally, possible use cases are determined based on the combination of these elements through a multi‐criteria analysis.</jats:p>}},
  author       = {{Pannok, Maik and Finkbeiner, Marco and Fasel, Henrik and Riese, Julia and Lier, Stefan}},
  issn         = {{2196-9744}},
  journal      = {{ChemBioEng Reviews}},
  keywords     = {{Industrial and Manufacturing Engineering, Filtration and Separation, Process Chemistry and Technology, Biochemistry, Chemical Engineering (miscellaneous), Bioengineering}},
  number       = {{6}},
  pages        = {{216--228}},
  publisher    = {{Wiley}},
  title        = {{{Transformable Decentral Production for Local Economies with Minimized Carbon Footprint}}},
  doi          = {{10.1002/cben.202000008}},
  volume       = {{7}},
  year         = {{2020}},
}

@article{47578,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The change in process industry from fossil resources to alternative feedstock is indispensable due to the scarcity of resources and global warming. This leads to new challenges for the production systems. On the market side, rapid innovation is accompanied by shorter product life cycles leading to an increasing uncertainty of demand in terms of product type, volume and location. Therefore, the following five elements are combined into a concept to address these challenges: transformable production systems, local bio‐based resources, CO<jats:sub>2</jats:sub> as feedstock, renewable energy and decentral production network with local economies.</jats:p>}},
  author       = {{Finkbeiner, Marco and Pannok, Maik and Fasel, Henrik and Riese, Julia and Lier, Stefan}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{12}},
  pages        = {{2041--2045}},
  publisher    = {{Wiley}},
  title        = {{{Modular Production with Bio‐Based Resources in a Decentral Production Network}}},
  doi          = {{10.1002/cite.202000072}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47574,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>In this paper, a newly designed distillation column consisting of a wetted wall with a rectangular cross section is analyzed and compared with a conventional packed column with regard to the operating range of both apparatuses. As expected, the pressure drop is considerably lower in the wetted‐wall column and, therefore, it offers a higher range of operation. However, in the wetted‐wall column, the separation efficiency decreases rapidly with increasing <jats:italic>F</jats:italic> factors. This effect can be overcome by the serial connection of two wetted‐wall columns.</jats:p>}},
  author       = {{Reitze, Arnulf and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{12}},
  pages        = {{1968--1975}},
  publisher    = {{Wiley}},
  title        = {{{Comparison of the Operating Range of a Wetted‐Wall Column with a Packed Column for Distillation}}},
  doi          = {{10.1002/cite.202000065}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47577,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>This study presents a new and innovative sieve tray design for a more flexible operation of separation columns in terms of possible throughput. The advantage of this new tray design is to ensure an optimal operation for varying feed flow rates and constant separation efficiencies for different load ranges. The aim of this work is to give a short introduction and an outlook to the investigation of the functionality of the designed trays. Moreover, the general design of the new trays, first results for CFD simulations of the dry pressure drop and the experimental setup are presented.</jats:p>}},
  author       = {{Fasel, Henrik and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{12}},
  pages        = {{2035--2040}},
  publisher    = {{Wiley}},
  title        = {{{New Column Design to Enhance Flexibility: Concept for Hydrodynamic Characterization}}},
  doi          = {{10.1002/cite.202000055}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47575,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Due to the increasing share of renewable energies in the power sector, the need for energy storage and flexible performance is rising. This study provides an in‐depth investigation of the flexibility of a Power‐to‐Gas plant for the production of synthetic natural gas. Model‐based analysis is conducted for the individual technologies PEM electrolysis, MEA absorption and fixed‐bed methanation as well as for the continuously operated process. This study reveals that the Power‐to‐Gas plant offers a capacity flexibility of 87–125 %, corresponding to 4.79–6.88 MW electrical input power.</jats:p>}},
  author       = {{Herrmann, Felix and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{12}},
  pages        = {{1983--1991}},
  publisher    = {{Wiley}},
  title        = {{{Flexibility of Power‐to‐Gas Plants: A Case Study}}},
  doi          = {{10.1002/cite.202000063}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47573,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Flexibility receives increased interest in chemical engineering and is discussed as one measure to deal with upcoming challenges for the chemical industry. In this paper, different types of flexibility are presented, and flexibility needs are illustrated. The focus is on the evaluation and classification of available solutions to enhance flexibility. Solutions and future challenges across all length scales of chemical engineering are discussed: from tailored catalyst properties to decoupling of processes by means of storage.</jats:p>}},
  author       = {{Riese, Julia and Grünewald, Marcus}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{12}},
  pages        = {{1887--1897}},
  publisher    = {{Wiley}},
  title        = {{{Challenges and Opportunities to Enhance Flexibility in Design and Operation of Chemical Processes}}},
  doi          = {{10.1002/cite.202000057}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47576,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>A method is proposed to evaluate capacity potentials in continuously operated chemical processes. In the main part of the analysis, the operating windows of the equipment are examined based on detailed steady‐state simulations. The method is applied to a case study of the production process of ethylene oxide as a large‐scale commodity chemical. Results show the limitations continuously operated processes are confronted with. However, opportunities to enlarge or shift the operating window of apparatuses applied are determined.</jats:p>}},
  author       = {{Bruns, Bastian and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{12}},
  pages        = {{2005--2015}},
  publisher    = {{Wiley}},
  title        = {{{Analysis of Capacity Potentials in Continuously Operated Chemical Processes}}},
  doi          = {{10.1002/cite.202000053}},
  volume       = {{92}},
  year         = {{2020}},
}

@article{47581,
  abstract     = {{<jats:p>The chemical industry has to deal with increasing uncertainties regarding the boundary conditions of their production processes. On the one hand, uncertainties affect the availability, quality, and prizes of raw material and energy. On the other hand, the demand side is affected by increasing volatilities in product demand and increasing requirements for product variety. These changing boundary conditions lead to higher needs for flexibility in production processes of the chemical industry. Within this article technical solutions for an enhancement of different forms of flexibility are presented for production concepts and apparatus concepts, respectively. The latter focuses on unit operations for the separation of gas–liquid mixtures. This includes a review regarding transformable, modular production processes and a classification of their field of application. Additionally, concepts for named unit operations on different scales are presented and discussed. The presented concepts are also classified with respect to the different types of flexibility.</jats:p>}},
  author       = {{Riese, Julia and Lier, Stefan and Paul, Sarah and Grünewald, Marcus}},
  issn         = {{2305-7084}},
  journal      = {{ChemEngineering}},
  keywords     = {{General Energy, General Engineering, General Chemical Engineering}},
  number       = {{2}},
  publisher    = {{MDPI AG}},
  title        = {{{Flexibility Options for Absorption and Distillation to Adapt to Raw Material Supply and Product Demand Uncertainties: A Review}}},
  doi          = {{10.3390/chemengineering3020044}},
  volume       = {{3}},
  year         = {{2019}},
}

@article{47582,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Modeling of heat and mass transfer in fixed‐bed reactors for heterogeneously catalyzed gas phase reactions is possible using different methods. Homogeneous and heterogeneous continuum models as well as particle resolved modeling of fixed‐bed reactors show high potential for application. Considering those approaches, advantages and disadvantages as well as underlying assumptions and boundary conditions are discussed. Additionally, methods for experimental validation are presented and discussed focusing on the two‐dimensional homogeneous models.</jats:p>}},
  author       = {{Stegehake, Carolin and Riese, Julia and Grünewald, Marcus}},
  issn         = {{2196-9744}},
  journal      = {{ChemBioEng Reviews}},
  keywords     = {{Industrial and Manufacturing Engineering, Filtration and Separation, Process Chemistry and Technology, Biochemistry, Chemical Engineering (miscellaneous), Bioengineering}},
  number       = {{2}},
  pages        = {{28--44}},
  publisher    = {{Wiley}},
  title        = {{{Modeling and Validating Fixed‐Bed Reactors: A State‐of‐the‐Art Review}}},
  doi          = {{10.1002/cben.201900002}},
  volume       = {{6}},
  year         = {{2019}},
}

@article{47584,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Die Digitalisierung und Flexibilisierung von Produktionsprozessen bieten in der Spezialchemie die Chance, auf marktseitige Herausforderungen adäquat zu reagieren. Kürzer werdende Produktlebenszyklen, zunehmende Produktindividualisierung und die daraus resultierende Volatilität der Märkte stellen neue Anforderungen an Anlagenbetreiber. Neuartige Konzepte wie modulare Produktionsanlagen sowie Technologieentwicklungen im Rahmen der Industrie 4.0 können dabei helfen, die Smart Factory in der Spezialchemie umzusetzen. Im Folgenden werden die für diesen Wandel notwendigen Konzepte vorgestellt.</jats:p>}},
  author       = {{Reitze, Arnulf and Jürgensmeyer, Nikolas and Lier, Stefan and Kohnke, Marco and Riese, Julia and Grünewald, Marcus}},
  issn         = {{0044-8249}},
  journal      = {{Angewandte Chemie}},
  keywords     = {{General Medicine}},
  number       = {{16}},
  pages        = {{4318--4324}},
  publisher    = {{Wiley}},
  title        = {{{Auf dem Weg zur Smart Factory: modulare, intelligente Konzepte für die Produktion von Spezialchemikalien der Zukunft}}},
  doi          = {{10.1002/ange.201711571}},
  volume       = {{130}},
  year         = {{2018}},
}

@article{47583,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Es stehen vielfältige Methoden zur Beschreibung der Wärme‐ und Stofftransportvorgänge in Festbettreaktoren für die Durchführung von heterogen katalysierten Gasphasenreaktionen zur Verfügung. Neben den homogenen und heterogenen Kontinuumsmodellen kann auch der partikelaufgelösten Modellierung ein hohes Anwendungspotenzial zugewiesen werden. Für die Methoden werden die Vor‐ und Nachteile sowie Annahmen und Randbedingungen dargestellt und diskutiert. Zusätzlich werden die Möglichkeiten zur experimentellen Validierung diskutiert, wobei der Fokus dabei auf den besonders verbreiteten zweidimensionalen, homogenen Kontinuumsmodellen liegt.</jats:p>}},
  author       = {{Stegehake, Carolin and Riese, Julia and Grünewald, Marcus}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}},
  number       = {{11}},
  pages        = {{1739--1758}},
  publisher    = {{Wiley}},
  title        = {{{Modeling and Validating Fixed‐Bed Reactors: A State‐of‐the‐Art Review}}},
  doi          = {{10.1002/cite.201800130}},
  volume       = {{90}},
  year         = {{2018}},
}

@article{47585,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Digitalization and increasing the flexibility of production concepts offer the possibility to react to market challenges in the field of specialty chemicals. Shorter product lifetimes, increasing product individualization, and the resulting market volatility impose new requirements on plant operators. Novel concepts such as modular production plants and developments in digitalization (Industry 4.0) are able to assist the implementation of smart factories in specialty chemicals. These essential concepts will be presented in this Minireview.</jats:p>}},
  author       = {{Reitze, Arnulf and Jürgensmeyer, Nikolas and Lier, Stefan and Kohnke, Marco and Riese, Julia and Grünewald, Marcus}},
  issn         = {{1433-7851}},
  journal      = {{Angewandte Chemie International Edition}},
  keywords     = {{General Chemistry, Catalysis}},
  number       = {{16}},
  pages        = {{4242--4247}},
  publisher    = {{Wiley}},
  title        = {{{Roadmap for a Smart Factory: A Modular, Intelligent Concept for the Production of Specialty Chemicals}}},
  doi          = {{10.1002/anie.201711571}},
  volume       = {{57}},
  year         = {{2018}},
}

@article{47586,
  author       = {{Lier, Stefan and Riese, Julia and Cvetanoska, Gordana and Lesniak, Anna Katharina and Müller, Stephan and Paul, Sarah and Sengen, Laura and Grünewald, Marcus}},
  issn         = {{0255-2701}},
  journal      = {{Chemical Engineering and Processing - Process Intensification}},
  keywords     = {{Industrial and Manufacturing Engineering, Process Chemistry and Technology, Energy Engineering and Power Technology, General Chemical Engineering, General Chemistry}},
  pages        = {{111--125}},
  publisher    = {{Elsevier BV}},
  title        = {{{Innovative scaling strategies for a fast development of apparatuses by modular process engineering}}},
  doi          = {{10.1016/j.cep.2017.10.026}},
  volume       = {{123}},
  year         = {{2017}},
}