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Our packed bed reactor runs the gas phase reaction A →R at 10 atm and 336°C, and gives 90% conversion of a pure A feed. However, the catalyst salesman guarantees that in the absence of pore diffusion resistance our reaction will proceed on his new improved porous catalyst (Deff = 2 x 10-6 m3/m cat-s) with a rate given by mol -TA = 0.08 CA m³ cats which is much better than what we now can do. The catalyst is rather expensive since it is formulated of compressed kookaburra droppings and it is sold by weight. Still, we'll try it when we next replace our catalyst. What diameter of catalyst balls should we order?

Our packed bed reactor runs the gas phase reaction A →R at 10 atm and 336°C, and gives 90% conversion of a pure A feed. However, the catalyst salesman guarantees that in the absence of pore diffusion resistance our reaction will proceed on his new improved porous catalyst (Deff = 2 x 10-6 m3/m cat-s) with a rate given by mol -TA = 0.08 CA m³ cats which is much better than what we now can do. The catalyst is rather expensive since it is formulated of compressed kookaburra droppings and it is sold by weight. Still, we'll try it when we next replace our catalyst. What diameter of catalyst balls should we order?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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Our packed bed reactor runs the gas phase reaction A → R at 10 atm and 336°C, and gives 90% conversion of a pure A feed. However, the catalyst salesman guarantees that in the absence of pore diffusion resistance our reaction will proceed on his new improved porous catalyst (Deff = 2 x 10-6 m³/m cats) with a rate given by A1 mol -TA = 0.08 CA m³cats which is much better than what we now can do. The catalyst is rather expensive since it is formulated of compressed kookaburra droppings and it is sold by weight. Still, we'll try it when we next replace our catalyst. What diameter of catalyst balls should we order?
Transcribed Image Text:Our packed bed reactor runs the gas phase reaction A → R at 10 atm and 336°C, and gives 90% conversion of a pure A feed. However, the catalyst salesman guarantees that in the absence of pore diffusion resistance our reaction will proceed on his new improved porous catalyst (Deff = 2 x 10-6 m³/m cats) with a rate given by A1 mol -TA = 0.08 CA m³cats which is much better than what we now can do. The catalyst is rather expensive since it is formulated of compressed kookaburra droppings and it is sold by weight. Still, we'll try it when we next replace our catalyst. What diameter of catalyst balls should we order?
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