Answered: A mixture containing 10% ethanol (E)…

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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Similar questions

a process consists of two distillation columns. the composition of the feed to the first column is 30 mol% benzene, 30 mol% toluene, and 40 mol% xylene. the top stream of the first column does not contain xylene. the benzene content of the dome stream from the first column is 55 mol %. the bottoms stream from the second column has a flow of 100 mol/h and contains 15 mol% toluene and no benzene; while the top stream of the second column contains 50 mol % benzene. the upper stream flow of the first tower is twice the upper stream flow of the second tower. determine the molar flux of the fresh feed stream and the overhead stream leaving the first column.
A liquid mixture containing 30.0 mol% benzene (B), 25.0% toluene (T), and the rest xylene (X) feeds a distillation column. The bottom product contains 98.0 mol% X and no B, and 96.0% of the X in the feed is recovered in this stream. The top product feeds a second column. The top product of the second column contains 97.0% of the B in the feed to this column. The composition of this stream is 94.0 mol% B and the rest T. (a) Draw and label a flow diagram for this process and perform a degree of freedom analysis to prove that, for an assumed basis of calculation, the molar flow rates and compositions of all process streams can be calculated with the given information. Write the equations you would solve in order to calculate the unknown process variables. In each equation (or set of simultaneous equations), indicate the variables you would solve for. Do not perform any calculations yet. (b) Calculate (i) the percentage of benzene in the process feed (i.e., the feed to the first column)…
In a process to synthesize the pain reliever acetylsalicylic acid (ASA, also known as aspirin), the effluent stream from the final reactor contains 11 wt% ASA and 2 wt% sodium acetate in water. The final dry product is to be obtained by drying, crystallizing, or some combination. The product purity, measured as wt% ASA in the final dry powder, is a key value. If the water is evaporated off, what product purity results? The sodium acetate can be considered to be infinitely soluble in water, so an alternative process is suggested. Part of the water is removed by evaporation, then the concentrated solution is cooled to crystallize some pure ASA. The filter cake, which contains 1 kg entrained solution for each 4 kg of ASA crystals, is then dried. At the crystallizer/filter temperature, the solubility of ASA in water is 35 wt%. If enough water is evaporated so that half of the ASA fed is recovered as dry product, what is the ASA product final purity? How much water is removed per 100 kg of…

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