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Pure ethylene (C2H4) and oxygen are fed to a process for the manufacture of ethylene oxide (C2H«O): C2H4 + ½O2 → C2H4O Below is the flow diagram for the process. The catalytic reactor operates at 300 °C and 1.2 atm. At these conditions, single-pass measurements on the reactor show that 50% of the ethylene entering the reactor is consumed per pass, and of this, 70 % is converted to ethylene oxide. The remainder of the ethylene reacts to form CO2 and water. C2H4 + 302 → 2CO2 + 2H2O CHa (g) Recycle

Pure ethylene (C2H4) and oxygen are fed to a process for the manufacture of ethylene oxide (C2H«O): C2H4 + ½O2 → C2H4O Below is the flow diagram for the process. The catalytic reactor operates at 300 °C and 1.2 atm. At these conditions, single-pass measurements on the reactor show that 50% of the ethylene entering the reactor is consumed per pass, and of this, 70 % is converted to ethylene oxide. The remainder of the ethylene reacts to form CO2 and water. C2H4 + 302 → 2CO2 + 2H2O CHa (g) Recycle

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
Problem 1.1P
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23.5 [Himm (8th edition Hardcover) 7.1.53 on pp.402] The SI standard condition (SC) is 1 atm, 0 °C. Pure ethylene (C2H4) and oxygen are fed to a process for the manufacture of ethylene оxide (C2H.O): C2H4 + %O2 – C2H«O Below is the flow diagram for the process. The catalytic reactor operates at 300 °C and 1.2 atm. At these conditions, single-pass measurements on the reactor show that 50% of the ethylene entering the reactor is consumed per pass, and of this, 70 % is converted to ethylene oxide. The remainder of the ethylene reacts to form CO2 and water. C2H4 + 302 – 2CO2 + 2H2O CH, (g) Recycle Fresh CzH, (g) CH,O (1} Catalytic Reactor Reactor Output Product Separator Pure O2 (g) co2 (g) H20 (g) 0z (g) For a daily production of 10,000 kg of ethylene oxide: (a) Calculate the cubic meters per hour of total gas entering the reactor at S.C. (0 °C, 1 atm) if the ratio of the O2(g) fed to fresh C2H«(g) is 3 to 2. (b) Calculate the recycle ratio, by calculating the volumetric flowrate of C2H4 recycled at 10 °C and 100 kPa, and the volumetric flowrate of C2H4 fed at S.C. (0 °C, 1 atm) (c) Calculate the volumetric flowrate of the mixture of O2, CO2, and H20 leaving the separator per day at 80 °C and 100 kPa
Transcribed Image Text:23.5 [Himm (8th edition Hardcover) 7.1.53 on pp.402] The SI standard condition (SC) is 1 atm, 0 °C. Pure ethylene (C2H4) and oxygen are fed to a process for the manufacture of ethylene оxide (C2H.O): C2H4 + %O2 – C2H«O Below is the flow diagram for the process. The catalytic reactor operates at 300 °C and 1.2 atm. At these conditions, single-pass measurements on the reactor show that 50% of the ethylene entering the reactor is consumed per pass, and of this, 70 % is converted to ethylene oxide. The remainder of the ethylene reacts to form CO2 and water. C2H4 + 302 – 2CO2 + 2H2O CH, (g) Recycle Fresh CzH, (g) CH,O (1} Catalytic Reactor Reactor Output Product Separator Pure O2 (g) co2 (g) H20 (g) 0z (g) For a daily production of 10,000 kg of ethylene oxide: (a) Calculate the cubic meters per hour of total gas entering the reactor at S.C. (0 °C, 1 atm) if the ratio of the O2(g) fed to fresh C2H«(g) is 3 to 2. (b) Calculate the recycle ratio, by calculating the volumetric flowrate of C2H4 recycled at 10 °C and 100 kPa, and the volumetric flowrate of C2H4 fed at S.C. (0 °C, 1 atm) (c) Calculate the volumetric flowrate of the mixture of O2, CO2, and H20 leaving the separator per day at 80 °C and 100 kPa
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