The formation of nitroanaline (an important intermediate in dyes) is formed from the reaction of orthonitrochlorobenzene (ONCB) and aqueous ammonia with ammonium chloride as a by-product. 1. NO, CI NO, NH, + 2NH, + NH.CL ONCB Nitroanaline Let the reaction be represented symbolically as A + 2B → C +D The reaction occurs in the liquid phase and is first order in both ONCB and ammonia with k = 0.0017 m³ /kmol .min at 461K with E = 11273 cal/mol. The initial entering concentrations of A (ONCB) and B (ammonia) are 1.8 kmol/m³ and 6.6 kmol/m, respectively. a. Set up a stoichiometric table for this reaction for a flow system b. Write the rate law for the disappearance of ONCB, -rA solely as a function of conversion X c. What is the rate of reaction, -rA when X = 0.9 at i. 461 K ii. 561 K d. What would be the CSTR reactor volume to achieve 90% conversion at 561 K for a molar feed rate of 2 mol/min. Calculate the space time for this reactor. (Use R=1.987 cal/mol. K, where Ris the universal gas constant)
The formation of nitroanaline (an important intermediate in dyes) is formed from the reaction of orthonitrochlorobenzene (ONCB) and aqueous ammonia with ammonium chloride as a by-product. 1. NO, CI NO, NH, + 2NH, + NH.CL ONCB Nitroanaline Let the reaction be represented symbolically as A + 2B → C +D The reaction occurs in the liquid phase and is first order in both ONCB and ammonia with k = 0.0017 m³ /kmol .min at 461K with E = 11273 cal/mol. The initial entering concentrations of A (ONCB) and B (ammonia) are 1.8 kmol/m³ and 6.6 kmol/m, respectively. a. Set up a stoichiometric table for this reaction for a flow system b. Write the rate law for the disappearance of ONCB, -rA solely as a function of conversion X c. What is the rate of reaction, -rA when X = 0.9 at i. 461 K ii. 561 K d. What would be the CSTR reactor volume to achieve 90% conversion at 561 K for a molar feed rate of 2 mol/min. Calculate the space time for this reactor. (Use R=1.987 cal/mol. K, where Ris the universal gas constant)
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:The formation of nitroanaline (an important intermediate in dyes) is formed from the
reaction of orthonitrochlorobenzene (ONCB) and aqueous ammonia with ammonium
chloride as a by-product.
1.
NO,
CI
NO,
NH,
+ 2NH,
+ NH.CL
ONCB
Nitroanaline
Let the reaction be represented symbolically as
A + 2B → C +D
The reaction occurs in the liquid phase and is first order in both ONCB and ammonia
with k = 0.0017 m³ /kmol .min at 461K with E = 11273 cal/mol. The initial
entering concentrations of A (ONCB) and B (ammonia) are 1.8 kmol/m³ and
6.6 kmol/m, respectively.
a. Set up a stoichiometric table for this reaction for a flow system
b. Write the rate law for the disappearance of ONCB, -rA solely as a function of
conversion X
c. What is the rate of reaction, -rA when X = 0.9 at
i. 461 K
ii. 561 K
d. What would be the CSTR reactor volume to achieve 90% conversion at 561 K
for a molar feed rate of 2 mol/min. Calculate the space time for this reactor.
(Use R=1.987 cal/mol. K, where Ris the universal gas constant)
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