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Thermodynamic and kinetic studies on reversible liquid-phase Diels Alder reaction between maleic anhydride and 2-methyl furan

Dynamic modelling by thermal analysis

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Abstract

The liquid phase reaction between maleic anhydride and 1-methyl-furan leads to an exothermic cycloaddition. The reaction enthalpy, the rate constant and the equilibrium constant are evaluated with good precision by a method of analysis using thermal data and a dynamic model based on physical properties. The mathematical models that are presented here in a simple way (first-order system) represent the reaction accurately and are useful for studying other reactions and even industrial processes.

Zusammenfassung

Die Flüssigphasenreaktion zwischen Maleinsäureanhydrid und 1-Methylfuran führt zu einer exothermen Cycloaddition. Reaktionsenthalpie, Geschwindigkeitkonstante und Gleichgewichtskonstante wurden mit guter Genauigkeit mittels einer Analysenmethode auf der Basis von thermischen Angaben und eines auf physikalischen Eigenschaften beruhenden dynamischen Modelles ermittelt. Die hier auf einfache Weise vorgestellten matematischen Modelle (Systeme erster Ordnung) repräsentieren die Reaktion recht genau und sind nutzbringeng für die Untersuchung anderer Reaktionen und auch industrieller Prozesse.

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Abbreviations

t :

time /s

τ:

time of reaction /s

V :

total volume of the reagent mixture /l

N A,N B,N C :

total number of moles ofA, B, C /mol at timet

[A], [B], [C] :

concentrations ofA, B, C /mol·l−1 at timet

N A 0,N B 0 :

initial number ofA andB /mol

[A 0], [B 0]:

initial concentration ofA andB /mol·l−1

k * :

average rate constant /l·mol−1·s−1 in the reaction phase

T, T a :

temperature of the reagent mixture and ambient temperature /K

Q ∞ :

quantity of heat given of in the reaction /kJ

ΔH r :

reaction enthalpy /kJ·mol−1

k :

exchange coefficient of the system /kJ·s−1·K−1

M :

water equivalent mass of the entire system /kg

c :

thermal mass capacity of water /kJ·kg−1·K−1

1/α:

response time of the system /s

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Authors and Affiliations

  1. Centre de Mathématiques et de Calcul Scientifique, Faculté des Sciences et des Techniques-Campus Grossetti, Université de Corse, B.P 52, 20250, Corse, France

    N. Balbi & B. Khoumeri

Authors
  1. N. Balbi
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  2. B. Khoumeri
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Balbi, N., Khoumeri, B. Thermodynamic and kinetic studies on reversible liquid-phase Diels Alder reaction between maleic anhydride and 2-methyl furan. Journal of Thermal Analysis 42, 461–466 (1994). https://doi.org/10.1007/BF02548528

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  • DOI: https://doi.org/10.1007/BF02548528

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