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A separation process consists of two separation columns in series. The fresh feed to the process contains 45 mass% benzene and the rest xylene. This stream is fed to the first column. The stream leaving the top of the first column has a mass flow rate of 120 kg/hr and contains 93 mass% benzene, while the bottom stream is sent to feed to the second column. The top stream from the second column contains 90 mass% of xylene, while the bottom stream is recycled back, and it is combined with the fresh feed to the process to feed the first column. The recycle stream contains 34 mass% benzene. The ratio of the mass flow rate of the recycle stream to the mass flow rate of the top steam of the second column is 0.2. Balance this process using the usual step-by-step approach (flowchart, CV's, DOF, etc.). Show all the steps. B IUA - A.I E三三 三xx x. 三= G 米 *T T 12pt Paragraph

A separation process consists of two separation columns in series. The fresh feed to the process contains 45 mass% benzene and the rest xylene. This stream is fed to the first column. The stream leaving the top of the first column has a mass flow rate of 120 kg/hr and contains 93 mass% benzene, while the bottom stream is sent to feed to the second column. The top stream from the second column contains 90 mass% of xylene, while the bottom stream is recycled back, and it is combined with the fresh feed to the process to feed the first column. The recycle stream contains 34 mass% benzene. The ratio of the mass flow rate of the recycle stream to the mass flow rate of the top steam of the second column is 0.2. Balance this process using the usual step-by-step approach (flowchart, CV's, DOF, etc.). Show all the steps. B IUA - A.I E三三 三xx x. 三= G 米 *T T 12pt Paragraph

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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A separation process consists of two separation columns in series. The fresh feed to the process contains 45 mass% benzene and the rest xylene. This stream is fed to the first column. The stream leaving the top of the first column has a mass flow rate of 120 kg/hr and contains 93 mass% benzene, while the bottom stream is sent to feed to the second column. The top stream from the second column contains 90 mass% of xylene, while the bottom stream is recycled back, and it is combined with the fresh feed to the process to feed the first column. The recycle stream contains 34 mass% benzene. The ratio of the mass flow rate of the recycle stream to the mass flow rate of the top steam of the second column is 0.2. Balance this process using the usual step-by-step approach (flowchart, CV's, DOF, etc.). Show all the steps. B IUA - A.I E三三 三xx x. 三= G 米 *T T 12pt Paragraph
Transcribed Image Text:A separation process consists of two separation columns in series. The fresh feed to the process contains 45 mass% benzene and the rest xylene. This stream is fed to the first column. The stream leaving the top of the first column has a mass flow rate of 120 kg/hr and contains 93 mass% benzene, while the bottom stream is sent to feed to the second column. The top stream from the second column contains 90 mass% of xylene, while the bottom stream is recycled back, and it is combined with the fresh feed to the process to feed the first column. The recycle stream contains 34 mass% benzene. The ratio of the mass flow rate of the recycle stream to the mass flow rate of the top steam of the second column is 0.2. Balance this process using the usual step-by-step approach (flowchart, CV's, DOF, etc.). Show all the steps. B IUA - A.I E三三 三xx x. 三= G 米 *T T 12pt Paragraph
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