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2. The elementary, gas-phase reaction A → B + C is carried out isothermally in a PBR with 200 kg catalyst. Pure A enters at 10 atm and 127°C with a molar flow rate of 2.5 mol/min. The specific reaction rate constant at 50°C is 10-4 min¨¹, and activation energy is 85 kJ/mol. a. Plot XA as a function of catalyst weight up to 200 kg catalyst. What is the conversion exiting an isobaric reactor? b. Repeat part (a), plotting XA and y, for the case in which there is pressure drop. The pressure drop coefficient, a, is 0.0035 kg¨¹. What is the conversion and pressure exiting the reactor? c. Now assume the reaction is reversible with Kc = 0.025 mol/L. Plot XA as a function of W. What is the exiting conversion? Calculate the equilibrium conversion. d. Repeat part (d) with pressure drop also accounted for (a = 0.0035 kg¨¹). Plot both XA and y and list exiting conversion and pressure. (You do not need to calculate the equilibrium conversion.)

2. The elementary, gas-phase reaction A → B + C is carried out isothermally in a PBR with 200 kg catalyst. Pure A enters at 10 atm and 127°C with a molar flow rate of 2.5 mol/min. The specific reaction rate constant at 50°C is 10-4 min¨¹, and activation energy is 85 kJ/mol. a. Plot XA as a function of catalyst weight up to 200 kg catalyst. What is the conversion exiting an isobaric reactor? b. Repeat part (a), plotting XA and y, for the case in which there is pressure drop. The pressure drop coefficient, a, is 0.0035 kg¨¹. What is the conversion and pressure exiting the reactor? c. Now assume the reaction is reversible with Kc = 0.025 mol/L. Plot XA as a function of W. What is the exiting conversion? Calculate the equilibrium conversion. d. Repeat part (d) with pressure drop also accounted for (a = 0.0035 kg¨¹). Plot both XA and y and list exiting conversion and pressure. (You do not need to calculate the equilibrium conversion.)

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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2. The elementary, gas-phase reaction A → B + C is carried out isothermally in a PBR with 200 kg catalyst. Pure A enters at 10 atm and 127°C with a molar flow rate of 2.5 mol/min. The specific reaction rate constant at 50°C is 10-4 min¨¹, and activation energy is 85 kJ/mol. a. Plot XA as a function of catalyst weight up to 200 kg catalyst. What is the conversion exiting an isobaric reactor? b. Repeat part (a), plotting XA and y, for the case in which there is pressure drop. The pressure drop coefficient, a, is 0.0035 kg¨¹. What is the conversion and pressure exiting the reactor? c. Now assume the reaction is reversible with Kc = 0.025 mol/L. Plot XA as a function of W. What is the exiting conversion? Calculate the equilibrium conversion. d. Repeat part (d) with pressure drop also accounted for (a = 0.0035 kg¨¹). Plot both XA and y and list exiting conversion and pressure. (You do not need to calculate the equilibrium conversion.)
Transcribed Image Text:2. The elementary, gas-phase reaction A → B + C is carried out isothermally in a PBR with 200 kg catalyst. Pure A enters at 10 atm and 127°C with a molar flow rate of 2.5 mol/min. The specific reaction rate constant at 50°C is 10-4 min¨¹, and activation energy is 85 kJ/mol. a. Plot XA as a function of catalyst weight up to 200 kg catalyst. What is the conversion exiting an isobaric reactor? b. Repeat part (a), plotting XA and y, for the case in which there is pressure drop. The pressure drop coefficient, a, is 0.0035 kg¨¹. What is the conversion and pressure exiting the reactor? c. Now assume the reaction is reversible with Kc = 0.025 mol/L. Plot XA as a function of W. What is the exiting conversion? Calculate the equilibrium conversion. d. Repeat part (d) with pressure drop also accounted for (a = 0.0035 kg¨¹). Plot both XA and y and list exiting conversion and pressure. (You do not need to calculate the equilibrium conversion.)
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