Steady-state characteristics of autothermal structures with fluidized-bed catalytic reactors

作者：Bizon Katarzyna^*

来源：Chemical Engineering Journal, 2017, 321: 286-300.

DOI：10.1016/j.cej.2017.03.129

• Autothermal structure
• Fluidized-bed reactor
• Steady states
• Multiplicity
• Stability
• Process yield

The paper focuses on the analysis of steady-state properties of autothermal structures with a fluidized bed. The concept of autothermicity is discussed, and typical autothermal structures are presented. A method for the determination of the steady-states of such systems is described. Quantitative analysis of steady-states multiplicity is presented for two autothermal structures, that is a fluidized-bed reactor with an external heat exchanger, and with a partial recirculation of hot gases. A two-phase bubbling bed model is employed to describe quantitatively the behavior of the catalytic fluidized bed. The influence of selected design and operating parameters on steady-state characteristics is analyzed for two simple kinetic models. The effect of these parameter on the desired product yield is evaluated for the multiple-reaction process. The results obtained have both scientific and practical importance.

• 出版日期2017-8