Dynamical and technological consequences of multiple isolas of steady states in a catalytic fluidised-bed reactor

• Autorzy: Bizon K.

Identyfikatory

DOI

10.1515/cpe-2017-0031

• Języki publikacji: EN

Abstrakty

EN

Steady-state characteristics of a catalytic fluidised bed reactor and its dynamical consequences are analyzed. The occurrence of an untypical steady-state structure manifesting in a form of multiple isolas is described. A two-phase bubbling bed model is used for a quantitative description of the bed of catalyst. The influence of heat exchange intensity and a fluidisation ratio onto the generation of isolated solution branches is presented for two kinetic schemes. Dynamical consequences of the coexistence of such untypical branches of steady states are presented. The impact of linear growth of the fluidisation ratio and step change of the cooling medium temperature onto the desired product yield is analyzed. The results presented in this study confirm that the identification of a region of the occurrence of multiple isolas is important due to their strong impact both on the process start-up and its control.

Słowa kluczowe

EN

catalytic fluidised-bed reactor; steady states; non-linear analysis; multiplicity; multiple isolas

PL

reaktor katalityczny ze złożem fluidalnym; stan stały; analiza nieliniowa

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2017
• Tom: Vol. 38, nr 3
• Strony: 411--422
• Opis fizyczny: Bibliogr. 13 poz., tab., wykr.

Twórcy

autor

Bizon K.

• Cracow University of Technology, Department of Chemical and Process Engineering, 30-155 Kraków, ul. Warszawska 24, Poland

Bibliografia

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• 10. Tabiś B., 2001. Methanol synthesis in a fluidized-bed reactor coupled with an external heat exchanger. The effect of feedback deformation. Chem. Eng. J., 83, 191-200. DOI: 10.1016/S1385-8947(00)00254-0.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)