Chemie Ingenieur TechnikVolume 69, Issue 9 p. 1329-1330 Demonstrationen Flankierende Maßnahmen zur Einführung von „Plantwide Control”︁-Konzepten H.-R. Lausch, H.-R. Lausch Institut für Prozeß- und Anlagentechnik der Technischen Universität Berlin; Sekr. KWT-9, Straße des 17. Juni 135, D-10623 BerlinSearch for more papers by this authorL. Urbas, L. Urbas Institut für Prozeß- und Anlagentechnik der Technischen Universität Berlin; Sekr. KWT-9, Straße des 17. Juni 135, D-10623 BerlinSearch for more papers by this authorG. Wozny, G. Wozny Institut für Prozeß- und Anlagentechnik der Technischen Universität Berlin; Sekr. KWT-9, Straße des 17. Juni 135, D-10623 BerlinSearch for more papers by this authorW. Otten, W. Otten Degussa AG, D-50375 WesselingSearch for more papers by this author H.-R. Lausch, H.-R. Lausch Institut für Prozeß- und Anlagentechnik der Technischen Universität Berlin; Sekr. KWT-9, Straße des 17. Juni 135, D-10623 BerlinSearch for more papers by this authorL. Urbas, L. Urbas Institut für Prozeß- und Anlagentechnik der Technischen Universität Berlin; Sekr. KWT-9, Straße des 17. Juni 135, D-10623 BerlinSearch for more papers by this authorG. Wozny, G. Wozny Institut für Prozeß- und Anlagentechnik der Technischen Universität Berlin; Sekr. KWT-9, Straße des 17. Juni 135, D-10623 BerlinSearch for more papers by this authorW. Otten, W. Otten Degussa AG, D-50375 WesselingSearch for more papers by this author First published: 03 February 2004 https://doi.org/10.1002/cite.3306909179Citations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume69, Issue9September 1997Pages 1329-1330 RelatedInformation

Chemie Ingenieur TechnikVolume 68, Issue 8 p. 973-977 Wissenschaftliche Kurzmitteilungen Verfahrenstechnische Optimierung eines Anlagenverbundes am Beispiel einer Kunststoffproduktion† Dr.-Ing. Wilhelm Otten, Dr.-Ing. Wilhelm Otten Degussa AG, Werk Wesseling, D-50389 WesselingSearch for more papers by this authorDr. Peter Hoffmann, Dr. Peter Hoffmann Degussa AG, Werk Wesseling, D-50389 WesselingSearch for more papers by this author Dr.-Ing. Wilhelm Otten, Dr.-Ing. Wilhelm Otten Degussa AG, Werk Wesseling, D-50389 WesselingSearch for more papers by this authorDr. Peter Hoffmann, Dr. Peter Hoffmann Degussa AG, Werk Wesseling, D-50389 WesselingSearch for more papers by this author First published: August 1996 https://doi.org/10.1002/cite.330680817 † Vortrag von W. OTTEN anläßlich der GVC-Jahrestagung, 27./30. September 1995 in Straßburg, Frankreich. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Volume68, Issue8August 1996Pages 973-977 RelatedInformation

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

The use of zeolites for adsorptive waste gas purification and solvent recovery was limited by the preferential uptake of water by conventional zeolites. Recently developed zeolites produced by sophisticated synthesis and dealumination techniques combine extreme hydrophobicity and high temperature- and acid resistance. These zeolites are, therefore, suitable for selective adsorption of organic solvents from moist waste gas streams. Since zeolites are nonflammable, sorbent ignition is inherently prevented. Higher desorption temperatures result in lower specific energy costs and facilitates the adsorption and desorption of polymerizing and high boiling products. The low water uptake reduces the energy required for treating high humidity waste gas streams and allows the recovery of solvents with low water concentrations. Using appropriate binding substances zeolites can be pelletized to hollow cylinders with low pressure drop or can be used for coating honeycomp rotors.

AbstractDer Einsatz von Zeolithen in der adsorptiven Abluftreinigung und Lösungsmittel‐Rückgewinnung scheiterte bisher daran, daß handelsübliche Zeolithe bevorzugt Wasserdampf adsorbieren. Durch spezielle Synthesen oder Dealuminierungsverfahren können Zeolithe hergestellt werden, die extrem hydrophob, hoch temperaturbeständig und säurestabil sind. Diese Zeolithe sind daher geeignet, selektiv organische Lösungsmittel aus feuchten Abluftströmen zu adsorbieren. Die Unbrennbarkeit der Zeolithe verhindert die Selbstentzündung des Adsorbens. Höhere Desorptionstemperaturen ermöglichen geringere spezifische Energieverbräuche sowie die Ad‐ und Desorption von Schwersiedern und polymerisierenden Produkten. Die geringe Wasseraufnahme reduziert den Energiebedarf bei hohen Abluftfeuchten und erlaubt die Rückgewinnung wasserarmen Lösungsmittels. Mit geeigneten Bindemitteln lassen sich die Zeolithe zu Hohlzylindern mit geringem Druckverlust verformen oder zur Beschichtung von Wabenkörper‐Rotoren einsetzen.

Chemie Ingenieur TechnikVolume 61, Issue 1 p. 68-69 Kurzmitteilungen Messung der Sorptionsenthalpie von Lösungsmitteln und Schwefeldioxid and technischen Adsorbentien Prof. Dr.-Ing. Werner Kast, Prof. Dr.-Ing. Werner Kast Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDipl.-Ing. Thomas Gutermuth, Dipl.-Ing. Thomas Gutermuth Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDipl.-Ing. Wilhelm Otten, Dipl.-Ing. Wilhelm Otten Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDipl.-Ing. Ernst Gail, Dipl.-Ing. Ernst Gail Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this author Prof. Dr.-Ing. Werner Kast, Prof. Dr.-Ing. Werner Kast Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDipl.-Ing. Thomas Gutermuth, Dipl.-Ing. Thomas Gutermuth Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDipl.-Ing. Wilhelm Otten, Dipl.-Ing. Wilhelm Otten Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDipl.-Ing. Ernst Gail, Dipl.-Ing. Ernst Gail Fachgebiet Thermisce Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this author First published: 30 January 1989 https://doi.org/10.1002/cite.330610116Citations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume61, Issue130 January 1989Pages 68-69 RelatedInformation

Chemie Ingenieur TechnikVolume 60, Issue 10 p. 800-801 Wissenschaftliche Forschungsarbeit Die Entwicklung von Auslegungsdiagrammen für Festbettadsorber† Dipl.-Ing. Wilhelm Otten, Dipl.-Ing. Wilhelm Otten Fachgebiet „Thermische Verfahrenstechnik und Heizungstechnik”︁ der TU Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDr.-Ing. Werner Kast, Dr.-Ing. Werner Kast Fachgebiet „Thermische Verfahrenstechnik und Heizungstechnik”︁ der TU Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this author Dipl.-Ing. Wilhelm Otten, Dipl.-Ing. Wilhelm Otten Fachgebiet „Thermische Verfahrenstechnik und Heizungstechnik”︁ der TU Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorDr.-Ing. Werner Kast, Dr.-Ing. Werner Kast Fachgebiet „Thermische Verfahrenstechnik und Heizungstechnik”︁ der TU Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this author First published: October 1988 https://doi.org/10.1002/cite.330601022Citations: 3 † Vortrag von W. Otten auf dem Jahrestreffen der Verfahrens-Ingenieure, 30. Sept. bis 2. Okt. 1987 in Freiburg. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article.Citing Literature Volume60, Issue10October 1988Pages 800-801 RelatedInformation

AbstractA mathematical model of the dynamic behaviour of non‐isothermal fixed‐bed adsorbers has been developed which takes into account the various mass and heat transfer resistances. Comparison of experimental and simulated results confirms that the model can predict the adsorption and desorption breakthrough curves of an adiabatically operated column, using only equilibrium data and tortuosity factors obtained from single pellet experiments. A simplified model with a reduced number of parameters was derived by investigation of the dimensionless transfer parameters under industrial conditions. It becomes evident that the main transfer mechanisms are convective heat and mass transfer in the bulk flow and diffusion within the pores of the particle. Dimensionless effluent concentration is expresses in terms of dimensionless time, a transport parameter, a non‐isothermal parameter, the adsorption equilibrium and the inlet and initial concentrations and temperatures in the simplified model. For a chosen system of adsorbate and adsorbent, design charts can be developed by computer simulation, to determine graphically the breakthrough time as a function of significant process parameters, i.e. the dimensionless transfer parameter and the feed concentration.

AbstractBreakthrough in adsorption beds: Methods of calculation and influence of operation parameters. Calculation of the breakthrough curve of a fixed bed adsorber is performed numerically for industrial applications. Calculation methods are known for solution of the four coupled differential equations and can be performed within a considerable but acceptable time on todays powerful computers. Nevertheless, the present article considers the analytical description and discussion of the individual parameters because the influence of the large number of parameters on the breakthrough curve cannot be appreciated. These relations must be known if individual operating parameters are changed or if a laboratory unit is scaled up to an industrial plant. The influence of the following effects on the breakthrough curve are considered and approximate solutions are given in order to at least estimate the influence: axial dispersion; shape of the isotherms (linear, Langmuir, irreversible), constant pattern conditions; resistance to mass flow (diffusion and transfer); multicomponent adsorption; concentration and temperature fronts; non‐isothermal adiabatic adsorption; adiabatic equilibrium curve (sorption pathway). Mathematical treatment necessitates reference to the literature. The relations of importance for plant and design are presented here.

Chemie Ingenieur TechnikVolume 58, Issue 11 p. 910-911 Wissenschaftliche Forschungsarbeit Ein vereinfachtes Modell zur Beschreibung nichtisothermer Sorptionsvorgänge am Einzelkorn als Grundlage der Berechnung technischer Adsorber† Dipl.-Ing. Wilhelm Otten, Dipl.-Ing. Wilhelm Otten Institut für Thermische Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorProf. Dr.-Ing. Werner Kast, Prof. Dr.-Ing. Werner Kast Institut für Thermische Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this author Dipl.-Ing. Wilhelm Otten, Dipl.-Ing. Wilhelm Otten Institut für Thermische Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this authorProf. Dr.-Ing. Werner Kast, Prof. Dr.-Ing. Werner Kast Institut für Thermische Verfahrenstechnik und Heizungstechnik der TH Darmstadt, Petersenstr. 30, 6100 DarmstadtSearch for more papers by this author First published: 1986 https://doi.org/10.1002/cite.330581115Citations: 3 † Vortrag von W. Otten auf der internen Arbeitssitzung des GVC-Fachausschusses „Trocknungstechnik”︁ am 20./21. März 1986 in Bremen. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume58, Issue111986Pages 910-911 RelatedInformation