35. The homogeneous gas reaction 2A 3R follows second-order kinetics. For a feed rate of 4m³/hr of pure A at 5 atm and 350°C, an experimental reactor consisting of a 2,5 cm ID pipe 2 m long gives 65% conversion of feed. A commercial plant is to treat 310 m³/hr of feed consisting of 50% A, 50% inerts at 25 atm and 350°C to obtain 80% conversion. Assume plug flow in the pipe, negligible pressure drop, and ideal gas behavior. (a) How many 2-m lengths of 2.5 cm ID pipe are required? (b) Should they be placed in parallel or in series?

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
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he homogeneous gas reaction A --> 3R follows second-order kinetics. For a feed rate of 4m^3/hr of pure A at 5 atm and 350 degree C, an experimental reactor consisting of a 2.5 cm ID pipe 2 m long gives 60% conversion of feed. A commercial plant is to treat 320 m^3/hr of feed consisting of 50% A, 50% inerts at 25 atm and 350 degree C to obtain 80% conversion. Assume plug flow in the pipe, negligible pressure drop, and ideal gas behavior.

How many 2-m lengths of 2.5 cm ID pipe are required?

Should they be placed in parallel or in series?

35. The homogeneous gas reaction 2A 3R follows second-order kinetics. For a feed rate of
4m³/hr of pure A at 5 atm and 350°C, an experimental reactor consisting of a 2.5 cm ID pipe 2 m
long gives 65% conversion of feed.
A commercial plant is to treat 310 m³/hr of feed consisting of 50% A, 50% inerts at 25 atm and
350°C to obtain 80% conversion. Assume plug flow in the pipe, negligible pressure drop, and
ideal gas behavior.
(a) How many 2-m lengths of 2.5 cm ID pipe are required?
(b) Should they be placed in parallel or in series?
Transcribed Image Text:35. The homogeneous gas reaction 2A 3R follows second-order kinetics. For a feed rate of 4m³/hr of pure A at 5 atm and 350°C, an experimental reactor consisting of a 2.5 cm ID pipe 2 m long gives 65% conversion of feed. A commercial plant is to treat 310 m³/hr of feed consisting of 50% A, 50% inerts at 25 atm and 350°C to obtain 80% conversion. Assume plug flow in the pipe, negligible pressure drop, and ideal gas behavior. (a) How many 2-m lengths of 2.5 cm ID pipe are required? (b) Should they be placed in parallel or in series?
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