Design of heat-integrated columns: Industrial practice

Rix, A.; Hecht, C.; Paul, Niklas; Schallenberg, J.

doi:10.1016/j.cherd.2019.05.009

Cited by 14 publications

(2 citation statements)

References 11 publications

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“…Siebböden laufen schneller leer als Ventilböden, in Packungskolonnen leisten die Flüssigkeitssammler einen erheblichen Beitrag zum Gesamt-Hold-up. Dynamische Modelle sind auch zur Analyse komplexer Wechselwirkungen in wärmeintegrierten Kolonnenschaltungen vorteilhaft einsetzbar [15].…”

Section: Destillationskolonneunclassified

Dynamische Prozesssimulation als Werkzeug in der Sicherheitsanalyse

Hecht

Rix

Paul

et al. 2020

Chemie Ingenieur Technik

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Dynamische Simulationen gewinnen an Bedeutung zur Unterstützung von Sicherheitsanalysen, da sie es erlauben, nichtlineare dynamische Zusammenhänge auch über die Grenzen individueller Apparate oder Prozesseinheiten hinweg transparent zu machen und die Effektivität von Gegenmaßnahmen zu quantifizieren. Sie leisten einen Beitrag zum Design wirksamer Absicherungskonzepte und helfen so, übermäßig konservative Auslegungen zu vermeiden. Der ausreichende Geltungsbereich fluiddynamischer Modelle aus Programm-Bibliotheken ist zu validieren. Hier sind oft Modellerweiterungen nötig.

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Section: Destillationskolonneunclassified

Dynamische Prozesssimulation als Werkzeug in der Sicherheitsanalyse

Hecht

Rix

Paul

et al. 2020

Chemie Ingenieur Technik

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“…In order to improve the appliance of raw materials and energy resources efficiency, the chemical reactor of the given process must be in the focus. A reduction of unwanted by-products will simplify the consecutive separation tasks and reduce its energy demand [2]. The more efficient a chemical reactor is designed; the less raw materials must be applied for achieving the same production goal.…”

Section: Introductionmentioning

confidence: 99%

Instabilities in Fixed Bed Reactors with Downwards Directed Flow for the Oligomerization of 1‐Butene

Wehinger

Paul

Six

et al. 2022

Chemie Ingenieur Technik

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In this work instabilities in fixed bed reactors with downwards directed flows for the oligomerization of 1‐butene were investigated. For very long residence times or very low velocities in combination with strong exothermic reactions, the buoyancy force can exceed the inertia force and the downwards directed liquid flow in the fixed bed becomes instable. These flow conditions might result in hotspots, the shift of the conversion towards unwanted by‐products or even in a runaway of the reactor. Therefore, the detailed understanding of the transition between stable and instable flow conditions in fixed bed reactors is essential for a safe and reliable operation of the reactor. Various simulation methods and correlations were applied to predict instable conditions that were observed in an experimental setup. 3D CFD simulations could be used to predict instable flow conditions in fixed bed reactors.

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Energy Management in Chemical Industry

Asprion,

Giesa,

Mairhofer

et al. 2024

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1 Introduction 2 Sustainability and Energy Management 2.1 Feedstock and Energy Supply for the Chemical Industry 2.1.1 Current Feedstock Supply 2.1.2 Current Energy Supply 2.1.3 Alternative Feedstock Supply 2.1.4 Alternative Energy Supply 2.2 Regulatory Aspects 2.3 Process Design Objectives 3 Energy Management in Chemical Process Operations 3.1 Process Development 3.1.1 Process Synthesis 3.1.2 Development of New Processes 3.1.3 Reevaluation of Existing Processes 3.2 Plant Design 3.2.1 Exergy Analysis and Multicriteria Optimization 3.2.2 Process Operation Parameters 3.2.3 Pinch Technology 3.3 Equipment Design 3.3.1 Design of Distillation Columns 3.3.2 Heat Exchanger Design 3.4 Plant Operation 3.4.1 Control Design and Strategy 3.4.2 Plant Information Systems 3.4.3 Electrical Energy 3.5 Production Site Management 4 Conclusion List of Abbreviations References

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Design of heat-integrated columns: Industrial practice

Cited by 14 publications

References 11 publications

Dynamische Prozesssimulation als Werkzeug in der Sicherheitsanalyse

Dynamische Prozesssimulation als Werkzeug in der Sicherheitsanalyse

Instabilities in Fixed Bed Reactors with Downwards Directed Flow for the Oligomerization of 1‐Butene

Energy Management in Chemical Industry

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