Chemie Ingenieur Technik最新文献

{"title":"Ablagerungsbildung und ihre Minderung in der Membrandestillation zur Konzentrierung von Meerwasser\u0000 Fouling and its Mitigation in Membrane Distillation for Seawater Brine Concentration","authors":"Dr.-Ing. Sebastian Schilling,&nbsp;Dr.-Ing. Heike Glade","doi":"10.1002/cite.202500049","DOIUrl":"https://doi.org/10.1002/cite.202500049","url":null,"abstract":"<p>Membrane distillation is considered a promising process for concentrating highly saline waters, particularly brine from seawater desalination plants or saline wastewater from industrial processes as part of the Zero Liquid Discharge strategy. A major challenge is crystallization fouling on the membrane surface. In this study, a process model was coupled with geochemical software to investigate local temperatures and concentrations as well as the local saturation indices of various salts in a large-scale membrane module during seawater brine concentration. Results from a laboratory-scale membrane distillation system show that the formation of calcium sulfate, following the deposition of calcium carbonate, leads to a significant decline in permeate flux. The use of antiscalants shifts crystallization fouling to higher concentration factors.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 7","pages":"689-696"},"PeriodicalIF":1.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202500049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of Dissolved Gas Content in a Hydrocarbon-Based Liquid Using Gas Chromatography","authors":"Franziska Koch,&nbsp;Erik Frense,&nbsp;Dr.-Ing. Frank Rüdiger,&nbsp;Dr.-Ing. Karin Rühling","doi":"10.1002/cite.202400146","DOIUrl":"https://doi.org/10.1002/cite.202400146","url":null,"abstract":"<p>The content of dissolved gases in a working liquid can influence outgassing and system properties. A method is presented for determining the dissolved gas content of oxygen, nitrogen, and carbon dioxide in a hydrocarbon-based liquid using gas chromatography. The sampling facility and routine is presented. Various factors influence the gas content such as the sampling position, the preheating time, and the constancy of liquid temperature. Reaching equilibrium between dissolved gases and atmospheric gases is a slow process, requiring sufficient heating and stirring.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 7","pages":"740-746"},"PeriodicalIF":1.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202400146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Framework for the Development of Soft Sensors for Process Plants","authors":"Mathias Vorbröcker,&nbsp;Sven Schiffner,&nbsp;Marcus Kögler","doi":"10.1002/cite.202500012","DOIUrl":"https://doi.org/10.1002/cite.202500012","url":null,"abstract":"<p>By monitoring sensors, problematic system states in process engineering plants and production lines can be detected and corrected before significant damage occurs. Soft sensors as a combination of data analysis and digitalization are tailored to a specific application. During their development, large amounts of time series data from sensors are therefore analyzed, interpreted in consultation with the plant operators, and applied as the basis for the design of data processing methods using digital models, which form the core of soft sensors. The framework presented here is employed in development processes to make the research, development, and integration of soft sensors into operational and technical processes more effective and efficient.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 6","pages":"618-624"},"PeriodicalIF":1.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202500012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SisClever: Pure and Concentrated Products From Multicomponent Mixtures – Applied to Urban Mining","authors":"Ezgi Uslu,&nbsp;Marc Philippart de Foy,&nbsp;Prof. Dr.-Ing. Andreas Pfennig","doi":"10.1002/cite.202500015","DOIUrl":"https://doi.org/10.1002/cite.202500015","url":null,"abstract":"<p>The SisClever Process facilitates the simultaneous separation of multicomponent systems, achieving high concentrations and purities of individual products. A notable application is the hydrometallurgical separation of metals using cation-exchange extractants, where the pH is systematically varied along the counter-current process. The process is modeled based on phase equilibria and validated through experiments separating Zn²⁺ and Co²⁺. The efficiency of the process is demonstrated for the separation of a complex mixture of rare-earth metals, where only roughly a third of equilibrium stages is required compared to an optimized proposal from literature. Possible applications in recycling, generalization to other unit operations, as well as limitations are discussed.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 6","pages":"625-631"},"PeriodicalIF":1.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202500015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Upscaling Method in Drying System Design: From Single Sample Kinetic to Dryer Models","authors":"Thi Thuy Dung Nguyen,&nbsp;Van Thong Nguyen,&nbsp;Assoc. Prof. Viet Dung Nguyen,&nbsp;Assoc. Prof. Kieu Hiep Le","doi":"10.1002/cite.202400136","DOIUrl":"https://doi.org/10.1002/cite.202400136","url":null,"abstract":"<p>An upscaling methodology for designing convective drying systems is presented, specifically focusing on tray and belt dryers of sliced food. Based on the convective drying history of a single food slice, a semi-empirical model, named the Reaction Engineering Approach (REA) model, is developed to describe the heat and mass interaction between the food and drying agent. The model is integrated into the belt dryer's energy and mass conservation equations for co-current and counter-current configurations. The results indicate a remarkable maldistribution of air temperature and relative humidity along the belt and tray length, leading to a significant variation of the drying rate. The drying time and the moisture content uniformity are strongly dependent on the airflow and product flow configurations. The methodology proposed in this work can help design and operate the drying system accurately by knowing the single sample drying kinetics.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 7","pages":"747-758"},"PeriodicalIF":1.5,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative Ideen und Preise: JCF-Frühjahrssymposium bringt frischen Wind in die Chemie","authors":"","doi":"10.1002/cite.202570503","DOIUrl":"https://doi.org/10.1002/cite.202570503","url":null,"abstract":"&lt;p&gt;Im März traf sich die junge Chemie-Community in Münster. Unter dem Motto „Cycling Chemistry“ fand hier das Frühjahrssymposium des JCF (JungesChemieForum) der Gesellschaft Deutscher Chemiker (GDCh) statt. Rund 300 Nachwuchswissenschaftlerinnen und -wissenschaftler aus dem In- und Ausland kamen zusammen, um ihre Forschungsergebnisse zu präsentieren, sich auszutauschen und neue Kontakte zu knüpfen.&lt;/p&gt;&lt;p&gt;Das Symposium, seit 27 Jahren eine der größten Konferenzen von und für junge Forschende in Europa, stand ganz im Zeichen der Nachhaltigkeit. Das Motto „Cycling Chemistry“ spielte nicht nur auf den Veranstaltungsort – die Fahrradstadt Münster – an, sondern griff mit den Themen Recycling und wiederaufladbare Batterien auch zwei Kernbereiche einer zukunftsfähigen Chemie auf. Damit unterstrich es die Bedeutung der Chemie für eine nachhaltige Zukunft und vor allem die Rolle junger Wissenschaftlerinnen und Wissenschaftler bei der Entwicklung innovativer Lösungen.&lt;/p&gt;&lt;p&gt;Das wissenschaftliche Programm zeigte, wie vielfältig die Beiträge der Chemie zur Bewältigung globaler Herausforderungen sind. Neben international renommierten Plenarvortragenden wie Professor Dr. Klaus Kümmerer, Leuphana Universität Lüneburg, Professor Dr. Saiful Islam, University of Oxford, UK, Professor Dr. Sebastian Hasenstab-Riedel, Freie Universität Berlin, Professor Dr. Fikile R. Brushett, Massachusetts Institute of Technology (MIT), Cambridge, USA, Professorin Dr. Lena Daumann, Heinrich-Heine-Universität Düsseldorf, und Professorin Dr. Viktoria Däschlein-Gessner, Ruhr-Universität Bochum, kamen insbesondere Nachwuchsgruppenleitende und junge Forschende zu Wort. Auch in Workshops, einer Industrieausstellung und einer Postersession konnten sie ihre innovativen Ansätze präsentieren und mit erfahrenen Wissenschaftlerinnen und Wissenschaftlern diskutieren.&lt;/p&gt;&lt;p&gt;Darüber hinaus würdigte der FAIR4Chem Award den Beitrag von Dr. Daniel Kowalczyk von der Universität Ulm zur Transparenz in der Forschung. Er hatte einen Datensatz aus der chemischen Forschung publiziert, der die FAIR-Grundsätze (auffindbar, zugänglich, interoperabel und wiederverwendbar) erfüllte und damit einen wesentlichen Beitrag zur Erhöhung der Transparenz in der Forschung leistete. Der Preis wurde vom NFDI4Chem-Konsortium vergeben, an dem die GDCh beteiligt ist, und vom Fonds der Chemischen Industrie unterstützt.&lt;/p&gt;&lt;p&gt;Das JCF als Nachwuchsorganisation der GDCh spielt eine wichtige Rolle bei der Vernetzung und Förderung junger Chemikerinnen und Chemiker. Mit über 7300 Mitgliedern bildet es eine starke Plattform für den fachlichen Austausch und die persönliche Entwicklung. Auf dem Symposium konnten die Teilnehmenden nicht nur ihre Forschung vorstellen, sondern auch wertvolle Kontakte knüpfen – sei es beim Rahmenprogramm, dem Diversity Lunch oder am Stand des GDCh-Karriereservices, der Fragen rund um Karriere und Berufseinstieg beantwortete.&lt;/p&gt;&lt;p&gt;„Cycling Chemistry“ stand sinnbildlich für den Kreislauf von Ideen und Erken","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 5","pages":"370-371"},"PeriodicalIF":1.5,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202570503","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neuartiges Prozessleitsystem für Bioprozesse mit modellassistierten Optimierungswerkzeugen\u0000 New Type of Process Control System for Bioprocesses with Model-Assisted Optimization Tools","authors":"Dr.-Ing. Jochen Schoop-Zipfel,&nbsp;Dr. Christian Appl,&nbsp;André Moser,&nbsp;Dr. Jürgen Kuballa,&nbsp;Prof. Dr.-Ing. Ralf Pörtner,&nbsp;Prof. Dr.-Ing. Volker C. Hass","doi":"10.1002/cite.202500028","DOIUrl":"https://doi.org/10.1002/cite.202500028","url":null,"abstract":"<p>The development of effective control strategies for bioprocesses faces engineers with major challenges. Bioreactor systems must independently control changing conditions – a task that requires innovative automation tools such as the WinErs process control and simulation system. This integrates complex process models, enables simulations and parameter estimations, and offers control strategies for processes with multiple inputs and outputs. The WinErs Data Lake collects extensive process data, while model-assisted tools support the optimization of control variables. It provides an effective solution to bridge the gap between laboratory and industry.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 6","pages":"632-641"},"PeriodicalIF":1.5,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zirkularität – Die Herausforderung des Chemieingenieurwesens\u0000 Circularity – A Chemical Engineer's Challenge","authors":"Prof. Dr.-Ing. Jörg Sauer,&nbsp;Dr. Olaf Wachsen","doi":"10.1002/cite.202500009","DOIUrl":"https://doi.org/10.1002/cite.202500009","url":null,"abstract":"<p>Achieving climate neutrality in the chemical industry requires a fundamental restructuring of the value chains in just 20 years. To close the carbon cycle, well-known technologies such as pyrolysis or gasification will be used in new value chains. The end products must continue to meet the high quality requirements of the end user industries. The challenge is to develop processes that are tolerant of the variety of raw materials. Successful implementation requires thorough scale-up, which usually includes piloting. In the time available, the goals can only be achieved if new ways of cooperation between the various players and sectors with science, especially in education and training, are pursued.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 6","pages":"588-598"},"PeriodicalIF":1.5,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202500009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoelektronenspektroskopie-Analytik zur Detektion von oxidativen Chlorschäden an Umkehrosmosemembranen\u0000 Photoelectron Spectroscopy Analysis for the Detection of Oxidative Chlorine Damage on Reverse Osmosis Membranes","authors":"Franziska Blauth,&nbsp;Kevin Koenen,&nbsp;Dennis Mallach,&nbsp;Dr. Torsten Reuter,&nbsp;Dr. Andreas Schäfer,&nbsp;Bettina Schiemann,&nbsp;Ida Schütten","doi":"10.1002/cite.202500042","DOIUrl":"https://doi.org/10.1002/cite.202500042","url":null,"abstract":"<p>Thin-film composite membranes made of polyamide are highly sensitive to oxidizing substances. Membrane damage caused by free chlorine cannot be clearly identified for membrane samples of unknown origin by means of previously used rapid test methods. Usually, membrane damage due to an oxidatively active substance is determined by excluding other potential causes. A photoelectron spectroscopy-based method was developed on reverse osmosis membranes to detect oxidative chlorine damage. The effects and processes of chlorine-induced oxidation damage were determined in connection with the change in the chemical composition of the membrane surface.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 7","pages":"697-702"},"PeriodicalIF":1.5,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inhalt: Chem. Ing. Tech. 5/2025","authors":"","doi":"10.1002/cite.202570502","DOIUrl":"https://doi.org/10.1002/cite.202570502","url":null,"abstract":"","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"97 5","pages":"364-368"},"PeriodicalIF":1.5,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202570502","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}