1) The irreversible gas-phase nonelementary reaction A → B+C is to be carried out isothermally in a constant volume batch reactor using pure gas A. The reaction is second order in A. Laboratory data are collected at different runs to calculate specific reaction rate at 100 °C: RUN 1 RUN 2 RUN 3 RUN 4 Initial pressure of A, PAO, atm Half-time, t1/2, min 1 2.5 7.5 10 4 1.35 a) From the given data above, calculate the specific reaction rate at 100 °C.
1) The irreversible gas-phase nonelementary reaction A → B+C is to be carried out isothermally in a constant volume batch reactor using pure gas A. The reaction is second order in A. Laboratory data are collected at different runs to calculate specific reaction rate at 100 °C: RUN 1 RUN 2 RUN 3 RUN 4 Initial pressure of A, PAO, atm Half-time, t1/2, min 1 2.5 7.5 10 4 1.35 a) From the given data above, calculate the specific reaction rate at 100 °C.
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
Problem 1.1P
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Transcribed Image Text:1) The irreversible gas-phase nonelementary reaction A B+C is to be carried
out isothermally in a constant volume batch reactor using pure gas A. The
reaction is second order in A. Laboratory data are collected at different runs
to calculate specific reaction rate at 100 °C:
RUN 1
RUN 2
RUN 3
RUN 4
Initial pressure of A, PA0, atm
Half-time, t1/2, min
1
2.5
7.5
10
4
2
1.35
a) From the given data above, calculate the specific reaction rate at 100 °C.
b) If the reaction is proceeded in Plug Flow Reactor (PFR) calculate the residence
time in PFR to achieve 70% conversion of A at a temperature of 100 °C. The
inlet pressure is 1 atm and there is no pressure drop in the PFR. Pure A enters
the reactor.
сX (1+€X)2
(1+e)²X
-dX = 2ɛ(1+ ɛ)ln(1 – X) + ɛ²X+
(1–X)2
Hint:
(1–X)
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