VDI Verlag eLibrary

Pinch-based Methods for Absorption and Extraction Process and Solvent Screening

Christian Redepenning

Series: Verfahrenstechnik

Volume 955 2018

Results in this title

„… liquid-vapour composition surfaces for multicomponent mixtures with constant latent heat. Chemical Engineering …” „… multicomponent mixtures. In 18th European Symposium on Computer Aided Process Engineering Computer Aided Chemical …” „… extraction columns for multi-component mixture separations. Comput Aided Chem Eng, (pp. 1039–1044). Renon, H …”

Pinch-based shortcut method for the design of adiabatic absorption columns S. 21-58

„… applied in a fully automated manner to a multi-component mixture separations (Krämer et al., 2011b …” „… Ilustrating case studies Applicability of the novel method to multi-component mixture separations is …” „… gaseous mixtures. Usually, absorption processes combine two separation columns. In the first column, a …”

Pinch-based shortcut method for the design of isothermal extraction columns S. 59-89

„… in ternary mixtures critical points are isolated points. In a multi-component mixture critical points …” „… fermentation broth (Frank, 2008). The selected solvent and the mixture to be processed exhibit a liquid-liquid …” „… recovery of solutes from the feed mixture can be improved when multiple separation stages are ordered in a …”

doi.org/10.51202/9783186955036

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Theory and Application of the Lang-Gilles Observer for Distillation Processes

Maxim Stuckert

Series: Mess-, Steuerungs- und Regelungstechnik

Volume 1253 2016

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Bibliography S. 144-157

„… multicomponent mixtures. Industrial & Engineering Chemistry Research, 37(12):4689 4698, 1998. A. Benallou, D. E …” „… . Statistical thermodynamics of liquid mixtures: A new expression for the excess Gibbs energy of partly or …” „… Bibliography R. Baratti, A. Bertucco, A. D. Rold, and M. Morbidelli. A composition estimator for multicomponent …”

Titelei/Inhaltsverzeichnis S. I-XII

„… multicomponent mixtures and one of the studies introduces a plant-model mismatch. Bibliographische Information …” „… 978-3-18-525308-9, ISSN 0178-9546, ¤ 62,00/VDI-Mitgliederpreis ¤ 55,80. Keywords: Distillation – Multicomponent …” „… mixtures – Nonlinear state observer – Observer convergence – Observer tuning – Tray efficiency …”

Introduction S. 1-7

„… separation of mixtures into their components. This process is based on the di erent boiling points of the …” „… mixture components. The components with lower boiling points evaporate before the components with higher …” „… of a mixture is to be separated by distillation, either a single distillation column or a sequence of …”

Dynamic distillation modeling S. 8-51

„… Distillation e ciency models point e ciencies in a multi-component mixture are usually di erent and might take …” „… multi-component mixture. For example, a component can di use when there is no concentration gradient for this …” „… state to detail the K-value model. For non-polar mixtures, some widely used equations of state are the …”

Analysis of the Lang-Gilles observer S. 52-81

„… binary mixtures. Kienle (2000) extended the wave theory to multi-component distillation. Based on that …” „… . A more thorough investigation of an EKF designed for a ternary mixture was presented by Baratti et …” „… (2000). These authors developed a model for a multi-component batch distillation process also based on …”

Efficiency estimation in distillation columns S. 82-96

„… model nonlinearity and report that their estimators perform well even for multi-component mixtures …” „… in Section 2.3. It is known that the Murphree tray e ciency depends on the mixture properties, vapor …” „… binary mixtures. For these speci cations, the Murphree point e ciencies were determined by taking …”

doi.org/10.51202/9783186253088

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Model-Based Design of Pure and Multicomponent Cellulosic Biofuels for Advanced Engine Concepts

Manuel Dahmen

Series: Verfahrenstechnik

Volume 954 2017

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Titelei/Inhaltsverzeichnis S. I-XVIII

„… Model-Based Design of Pure and Multicomponent Cellulosic Biofuels for Advanced Engine Concepts Berichte …” „… Verfahrenstechnik - Prozesstechnik RWTH Aachen University Model-Based Design of Pure and Multicomponent Cellulosic …” „… Fortschritt-Berichte VDI Model-Based Design of Pure and Multicomponent Cellulosic Biofuels for Advanced Engine …”

Introduction S. 1-9

„… hydrolysis (Lange, 2007). The two thermochemical approaches yield complex multicomponent mixtures of …” „… al., 2016). In order to control the start of combustion in the CI engine, the fuel/air-mixture must …” „… the identification of tailored biofuel components and the rational formulation of mixtures of such …”

Blend formulation by simultaneous product and pathway design S. 130-174

„… assess the miscibility of the multicomponent mixture by analyzing the miscibility of all binary pairs …” „… pathway into account and the miscibility of the resulting multicomponent mixture is analyzed by means of …” „… multicomponent mixtures with nC > 4, it quickly approaches its limits because of the combinatorial explosion …”

Conclusions and outlook S. 175-178

„… molecular composition in the case of mixtures) constitutes the single most important design degree of …” „… ). • A computational framework for simultaneous product and pathway design of biofuel mixtures and their …” „… of reaction network flux analysis (RNFA) has been extended and combined with mixture property …”

Bibliography S. 227-276

„… multicomponent mixtures. Industrial & Engineering Chemistry Research, 35(4):1395–1408. Watkins, D. S. (2002 …” „… mixture design. Chemical Engineering Science, 159:93–105. Azadi, P., Inderwildi, O. R., Farnood, R., and …” „… ethanol–gasoline mixtures and their colloid state. Fuel, 86(3):323–327. Bamoharram, F. F., Heravi, M. M., Roshani …”

doi.org/10.51202/9783186954039

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Systematic and Optimization-Based Synthesis and Design of Chemical Processes

Sebastian Recker

Series: Verfahrenstechnik

Volume 951 2017

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Bibliography S. 99-114

„… Fair, J. R. (1990): Separation system synthesis: a knowledge-based approach. 1. Liquid mixture …” „… ): Separation system synthesis: a knowledgebased approach. 2. Gas/vapor mixtures, Industrial & Engineering …” „… ): Shortcut methods for nonideal multicomponent distillation: I. Simple columns, AIChE Journal 44(10 …”

A unifying framework for conceptual process design S. 11-54

„… processes for multi-component azeotropic mixtures. This strategy is based on a suitable initialization …” „… rigorous optimization models. To account for the non-ideal behavior of the mixtures involved and the …” „… generated. For reactor networks (cf. Section 1.1.1) or for zeotropic multicomponent distillation with simple …”

doi.org/10.51202/9783186951038

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28. Deutscher Flammentag

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2302 2017

Results in this title

T. Zirwes, F. Zhang, J. A. Denev, P. Habisreuther, H. Bockhorn, N. Zarzalis Einfluss von erhöhtem Druck auf die Änderung der Flammendynamik durch Streckung in vorgemischten Flammen S. 549-562

„… different fuel/air mixtures. However, the Lewis number, which is commonly used to characterize the …” „… et al. [14] and mixture-averaged transport properties [15]. On the left, a lean hydrogen/air flame …” „… mixture-averaged transport model [15], if not stated otherwise. 3.1 Premixed Twin-Counter-flow flame A simple …”

C. Chi, G. Janiga, K. Zähringer, D. Thévenin Indirekte Messung der Wärmefreisetzung in Wasserstoffflammen mittels Spezieskorrelationen S. 625-636

„… ´cOH 0.40 . Since, additionally, the amount of O2 in the gas mixture is larger than hydrogen …” „… , Multicomponent Flow Modeling, Birkhäuser, Boston, 1999. [30] A. Ern, V. Giovangigli, Thermal diffusion effects …”

doi.org/10.51202/9783181023020

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Technische Sicherheit

Browse Volumes: Technische Sicherheit

TeSi Volume 11 (2021) Issue 05-06 ISSN Online: 2191-0073

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Christian Wolf, Marcus Marx, Dieter Gabel Herausforderungen bei der Bestimmung der Mindestzündenergie hybrider Gemische S. 32-36

„… .: Investigation of the minimum ignition temperature and lower explosion limit of multicomponents hybrid mixtures …” „… of Explosion Characteristics of Multiphase Fuel Mixtures with Air (2016). [3] Amyotte, PR.; Eckhoff …” „… - Rodriguez, N.; Perrin, L.: Ignition sensitivity of gas–vapor/dust hybrid mixtures. Powder Technology …”

doi.org/10.37544/2191-0073-2021-05-06

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Model-based and Experimental Analysis of Transient Electrodialysis Processes

Matthias Johannink

Series: Verfahrenstechnik

Volume 949 2016

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Bibliography S. 161-177

„… Maxwell-Stefan approach to multicomponent di usion: Parabolic problems. Progress in Nonlinear Di erential …” „… , 2005. C. F. Curtiss and R. B. Bird. Multicomponent di usion. Industrial & Engineering Chemistry …” „… homogeneous and heterogeneous ion-exchange membranes in single salt and multicomponent electrolyte solutions …”

Modeling of ionic transport in electrolytes S. 66-83

„… introduces the fundamental equations for a mechanistic description of multicomponent mass transfer in an …” „… excess volume of the mixture. With Eq. (4.5) the implicit de nition of the reference velocity (4.4 …” „… , 1977) 1 = n∑ j=1 cj (x, t) Ṽj + V E (x, t) cT (x, t). (4.10) The excess volume of the mixture V E (x …”

Titelei/Inhaltsverzeichnis S. I-3

„… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 A.2.2 Mixture experiments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 A.2.3 …” „… . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 B.3 Multi-component density model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 B …” „… volume of species k m3 mol V E excess volume of the mixture m 3 mol vch mean velocity ms w di erential …”

Appendices S. 139-160

„… Mixture experiments The pro les of the conductivity κ, voltage di erence U , species concentrations of Na …” „… molar concentration-based activity coe cients 148 B.3 Multi-component density model γk (x, t). A …” „… , ..., n. (B.8) B.3 Multi-component density model For the description of the total molar density in an …”

doi.org/10.51202/9783186949035

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PIAE EUROPE 2021

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2385 2021

Results in this title

J. Horn, S. Pirl, M. Gehringer, F. Förster Interior parts with a focus on climate – A pleasant feel thanks to thermoplastic foam S. 129-144

„… 3. Material Thermoplastic elastomers (TPE) are extremely well suited to producing multi-component …” „… compartment TPE they are also used for complex multi-component parts with a sealing and bellows function …” „… structure consisting of a single material permits simple recycling approaches without devaluing the mixture …”

doi.org/10.51202/9783181023853

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Reaction Network Generation and Evaluation for the Design of Biofuel Value Chains

Juan José Wilhelm Victoria Villeda

Series: Verfahrenstechnik

Volume 950 2017

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Case studies S. 95-127

„… approximately 100% with a selectivity of 98% (Ma and Hanna, 1999). FAME production leads to a multi-component …” „… mixture, containing fatty acid methyl esters of different length 95 6 Case studies R1 O O O R3O O O R2 + 3 …” „… general alkyl residue in the triglyceride. In this way, the synthesis does not yield a mixture of …”

doi.org/10.51202/9783186950031

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PIAE EUROPE

VDI Wissensforum GmbH (ed.)

2020

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F. Vetter Emissions and odor under control – Thermoplastic elastomers for the vehicle interior S. 149-164

„… ). TPS are compounds and consist of raw material mixtures of various substances such as elastomers (SEBS …” „… contain almost no free monomeric styrene. Above a styrene content of 1%, a mixture is subject to labeling …” „… odor behavior. Its globally available portfolio includes compounds suitable for multi-component …”

doi.org/10.51202/9783181023693

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42. Deutsche Compoundier-Tagung 2016

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 4345 2016

Results in this title

S. Heinrich, M. Dosta Modern multiscale simulation methods for solids processes and particle systems S. 135-144

„… fraction of the smaller particles. The comparison has been done for two different mixtures 140 with the …” „… ., breakage energy for various agglomerates, flowability of multicomponent solids, etc.); – investigate the …”

doi.org/10.51202/9783182443452

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Scrubbing System Design for CO2 Capture in Coal-Fired Power Plants

Elizabeth Heischkamp

Series: Verfahrenstechnik

Volume 953 2017

Results in this title

Modelling of CO capture systems S. 31-69

„… and nearideal multicomponent vapour-liquid mixtures. However, they also state that deficiencies of …” „… these models with respect to general multicomponent mixtures –like absorption of CO2 from flue gases …” „… composition gradient at all. The Maxwell-Stefan equations are used to describe multicomponent diffusion. The …”

doi.org/10.51202/9783186953032

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