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A gas mixture of inert N2 and component A is fed to a packed bed reactor. The bed consists of spherical porous catalyst
Posted: Thu Jun 02, 2022 11:14 am
by answerhappygod
- A Gas Mixture Of Inert N2 And Component A Is Fed To A Packed Bed Reactor The Bed Consists Of Spherical Porous Catalyst 1 (178.42 KiB) Viewed 34 times
A gas mixture of inert N2 and component A is fed to a packed bed reactor. The bed consists of spherical porous catalyst particles. The following reaction occurs on the surface of the catalyst: A → P with Rp = kpCA It is also known that: kp 1.1.-10-3 ms-1 Reaction rate constant ac -3 1.0.10³ m² mcat internal catalyst surface per volume catalyst (= SA po) De 1.0.10-² m diameter of spherical catalyst particle diffusivity of A in gas phase 1.0-10-5 m²s-1 DAC 1.0-10-7 m²s-1 $ 0.40- diffusivity of A in porous catalyst particle void fraction (porosity) of packed bed inlet concentration of A CAO 0.040. kmol m-3 Sh 2.0. Sherwood number, Sh=kcDc DAg a) Determine the value of the Thiele modulus. Do you think the conversion process is reaction kinetic controlled or diffusion controlled? b) Where does most of the conversion of A take place? On the external surface, or on the internal surface of the catalyst? Motivate! c) Motivate the most effective way to increase the conversion, without changing the temperature. DAg