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(a) (b) (c) What is the chemical equation for the production of maleic anhydride? Draw a block diagram and annotate the streams for your mass balance. Based on a feed of 100 kmol h1 calculate the molar flowrate of each component in each stream. Verify that the overall mass balance is satisfied.

(a) (b) (c) What is the chemical equation for the production of maleic anhydride? Draw a block diagram and annotate the streams for your mass balance. Based on a feed of 100 kmol h1 calculate the molar flowrate of each component in each stream. Verify that the overall mass balance is satisfied.

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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3 Page 1 of 5 Module code: CAPE205001 ● De E 99 178 Turn the page over SECTION A There are two sections to this exam: Section A and Section B. You must answer three questions, one question from each of Section A and Section B and one other question. You must answer the questions from each section in a separate answer booklet. (b) = 1126 (c) Use the following atomic masses of elements: Carbon: 12; Hydrogen: 1; Oxygen: 16. 1 Maleic anhydride (C4H2O3) is produced by the vapour phase reaction of benzene with air (take as 21% oxygen and 79% nitrogen). The fresh feed of benzene has the following composition: 99% w/w benzene, 1% w/w toluene. ↳ Colle 4418 92 1.26 1-27536 The vapour phase catalysed reaction takes place isothermally in a fluidised bed reactor. The reactor operates at 75% conversion per pass of benzene. Assume there is no oxygen in the reactor outlet. The reactor efflux is cooled and partly condensed and then (ideally) separated into two streams: a gas stream containing all the nitrogen, carbon dioxide, toluene and the unreacted benzene and a liquid stream containing the maleic anhydride and water. Assume the gas stream is cooled further and all the nitrogen and carbon dioxide leave the process, the benzene and toluene remain in the liquid phase. Part of this liquid stream is recycled, but 5% is purged to avoid a build-up of toluene. (a) What is the chemical equation for the production of maleic anhydride? Draw a block diagram and annotate the streams for your mass balance. Based on a feed of 100 kmol h1 calculate the molar flowrate of each component in each stream. Verify that the overall mass balance is satisfied.
Transcribed Image Text:3 Page 1 of 5 Module code: CAPE205001 ● De E 99 178 Turn the page over SECTION A There are two sections to this exam: Section A and Section B. You must answer three questions, one question from each of Section A and Section B and one other question. You must answer the questions from each section in a separate answer booklet. (b) = 1126 (c) Use the following atomic masses of elements: Carbon: 12; Hydrogen: 1; Oxygen: 16. 1 Maleic anhydride (C4H2O3) is produced by the vapour phase reaction of benzene with air (take as 21% oxygen and 79% nitrogen). The fresh feed of benzene has the following composition: 99% w/w benzene, 1% w/w toluene. ↳ Colle 4418 92 1.26 1-27536 The vapour phase catalysed reaction takes place isothermally in a fluidised bed reactor. The reactor operates at 75% conversion per pass of benzene. Assume there is no oxygen in the reactor outlet. The reactor efflux is cooled and partly condensed and then (ideally) separated into two streams: a gas stream containing all the nitrogen, carbon dioxide, toluene and the unreacted benzene and a liquid stream containing the maleic anhydride and water. Assume the gas stream is cooled further and all the nitrogen and carbon dioxide leave the process, the benzene and toluene remain in the liquid phase. Part of this liquid stream is recycled, but 5% is purged to avoid a build-up of toluene. (a) What is the chemical equation for the production of maleic anhydride? Draw a block diagram and annotate the streams for your mass balance. Based on a feed of 100 kmol h1 calculate the molar flowrate of each component in each stream. Verify that the overall mass balance is satisfied.
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