Ethylene oxide is produced by the catalytic oxidation of ethylene: 1 C2H4(8) +02(3) →CH,0(g) An undesired competing reaction is the combustion of ethylene to CO2. The feed to a reactor contains 2 mol C2H4/mol O2. The conversion and yield in the reactor are respectiveiy 25% and 0.70 mol C2H40 produced/mol C2H4 consumed. A multiple-unit process separates the reactor outlet stream components: C2H4 and O, are recycled to the reactor, C2H40 is sold. and CO2 and H2O are discarded. The reactor inlet and outlet streams are each at 450°C, and the fresh feed and all species leaving the separation process are at 25°C. The combined fresh feed-recycle stream is preheated to 450°C. Data for C2H40(g) AH = -51.0 kJ /mol Cp[J/mol · K] = -4.69+0.20617 – 9.995 x 10-$72 (a) Taking a basis of 2 mol of ethylene entering the reactor, draw and label a flowchart of the com- plete process (show the separation process as a single unit) and calculate the molar amounts and compositions of all process streams. (b) Calculate the heat requirement (kJ) for the entire process and that for the reactor alone. (c) Calculate the flow rate (kg/h) and composition of the fresh feed and the overall and reactor heat requirements (kW) for a production rate of 1500 kg C2H4Olday.
Ethylene oxide is produced by the catalytic oxidation of ethylene: 1 C2H4(8) +02(3) →CH,0(g) An undesired competing reaction is the combustion of ethylene to CO2. The feed to a reactor contains 2 mol C2H4/mol O2. The conversion and yield in the reactor are respectiveiy 25% and 0.70 mol C2H40 produced/mol C2H4 consumed. A multiple-unit process separates the reactor outlet stream components: C2H4 and O, are recycled to the reactor, C2H40 is sold. and CO2 and H2O are discarded. The reactor inlet and outlet streams are each at 450°C, and the fresh feed and all species leaving the separation process are at 25°C. The combined fresh feed-recycle stream is preheated to 450°C. Data for C2H40(g) AH = -51.0 kJ /mol Cp[J/mol · K] = -4.69+0.20617 – 9.995 x 10-$72 (a) Taking a basis of 2 mol of ethylene entering the reactor, draw and label a flowchart of the com- plete process (show the separation process as a single unit) and calculate the molar amounts and compositions of all process streams. (b) Calculate the heat requirement (kJ) for the entire process and that for the reactor alone. (c) Calculate the flow rate (kg/h) and composition of the fresh feed and the overall and reactor heat requirements (kW) for a production rate of 1500 kg C2H4Olday.
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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![Ethylene oxide is produced by the catalytic oxidation of ethylene:
C>H4(8) +02(8)→CzH40(g)
An undesired competing reaction is the combustion of ethylene to CO2. The feed to a reactor
contains 2 mol C2H4/mol O2. The conversion and yield in the reactor are respectiveiy 25% and
0.70 mol C2H40 produced/mol C2H4 consumed. A multiple-unit process separates the reactor
outlet stream components: C2H4 and O, are recycled to the reactor, C2H40 is sold. and CO2 and
H20 are discarded. The reactor inlet and outlet streams are each at 450°C, and the fresh feed and
all species leaving the separation process are at 25°C. The combined fresh feed-recycle stream is
preheated to 450°C.
Data for C2H40(g)
AH = -51.0 kJ /mol
Cp[J/mol · K] = -4.69 +0.2061T – 9.995 × 10-5T?
%3D
(a) Taking a basis of 2 mol of ethylene entering the reactor, draw and label a flowchart of the
com- plete process (show the separation process as a single unit) and calculate the molar
amounts and compositions of all process streams.
(b) Calculate the heat requirement (kJ) for the entire process and that for the reactor alone.
(c) Calculate the flow rate (kg/h) and composition of the fresh feed and the overall and reactor
heat requirements (kW) for a production rate of 1500 kg C2H4Olday.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8dbff956-e43c-48ff-b648-b98fd3ab1747%2Fd831dfd0-c390-41f7-90a1-12d54203ff79%2F3d2sks9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Ethylene oxide is produced by the catalytic oxidation of ethylene:
C>H4(8) +02(8)→CzH40(g)
An undesired competing reaction is the combustion of ethylene to CO2. The feed to a reactor
contains 2 mol C2H4/mol O2. The conversion and yield in the reactor are respectiveiy 25% and
0.70 mol C2H40 produced/mol C2H4 consumed. A multiple-unit process separates the reactor
outlet stream components: C2H4 and O, are recycled to the reactor, C2H40 is sold. and CO2 and
H20 are discarded. The reactor inlet and outlet streams are each at 450°C, and the fresh feed and
all species leaving the separation process are at 25°C. The combined fresh feed-recycle stream is
preheated to 450°C.
Data for C2H40(g)
AH = -51.0 kJ /mol
Cp[J/mol · K] = -4.69 +0.2061T – 9.995 × 10-5T?
%3D
(a) Taking a basis of 2 mol of ethylene entering the reactor, draw and label a flowchart of the
com- plete process (show the separation process as a single unit) and calculate the molar
amounts and compositions of all process streams.
(b) Calculate the heat requirement (kJ) for the entire process and that for the reactor alone.
(c) Calculate the flow rate (kg/h) and composition of the fresh feed and the overall and reactor
heat requirements (kW) for a production rate of 1500 kg C2H4Olday.
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