Thermodynamic analysis on disproportionation process of cyclohexylamine to dicyclohexylamine

• Autorzy: Valeš Roman , Dvořák Bohumír , Krupka Jiří

Identyfikatory

DOI

10.2478/pjct-2021-0029

• Języki publikacji: EN

Abstrakty

EN

This work deals with a study of the effect of temperature on the cyclohexylamine disproportionation to dicyclohexy-lamine, conjointly with the thermodynamic analysis of this process. The laboratory experiments were carried out in a glass tubular continuous-flow reactor in a gaseous phase at the reaction temperature 433–463 K over a nickel catalyst. The results show, that the temperature has a trifing effect on equilibrium conversion of cyclohexylamine. However, temperature affects the formation of hydrocarbons, benzene and cyclohexane, and dehydrogenation products of dicyclohexylamine, i.e. N-cyclohexylidenecyclohexanamine and N-phenylcyclohexylamine. The latter one is the dominant product of dicyclohexylamine dehydrogenation. The disproportionation of cyclohexylamine has slightly exothermic character. At the experimental reaction temperature range, the cyclohexylamine disproportionation is spontaneous reaction and other reactions of this process are non-spontaneous.

Słowa kluczowe

EN

Cyclohexylamine; Dicyclohexylamine; Disproportionation; Chemical equilibrium; Thermodynamics

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2021
• Tom: Vol. 23, nr 3
• Strony: 43--48
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Valeš Roman

• Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic

autor

Dvořák Bohumír

• Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic

autor

Krupka Jiří

• Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).