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What is the molar flow rate of the fresh hydrogen and nitrogen gas mixture to the process?

What is the molar flow rate of the fresh hydrogen and nitrogen gas mixture to the process?

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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mole fraction of hydrogen gas: mole fraction of nitrogen gas: What is the flow rate of gas leaving the separator? flow rate: What is the flow rate of gas in the recycle line? flow rate: mol H₂/mol mol N₂/mol mol gas/h mol gas/h
Transcribed Image Text:mole fraction of hydrogen gas: mole fraction of nitrogen gas: What is the flow rate of gas leaving the separator? flow rate: What is the flow rate of gas in the recycle line? flow rate: mol H₂/mol mol N₂/mol mol gas/h mol gas/h
Sunflower oil contains 0.070 mol palmitic acid (C₁6H320₂)/mol, 0.060 mol stearic acid (C18H3602)/mol, 0.28 mol oleic acid (C₁8H340₂)/mol, and 0.59 mol linoleic acid (C₁8H320₂)/mol. To create margarine from sunflower oil, the liquid oleic and linoleic acids are hydrogenated in the presence of a metal catalyst to form solid stearic acid. C18H3402 + H₂- → C18H3602 -> C18H3202 +2H₂ → C18H360₂ - At a margarine production facility, a stream of 490.0 mol sunflower oil/h is fed into a reactor. The fresh hydrogen source available is a mixture containing 0.95 mol H₂/mol and 0.050 mol N₂/mol. N₂ is inert in this process. To ensure complete hydrogenation, the hydrogen gas mixture is introduced into the reactor in 70.0% excess. All reaction products leave the reactor and proceed to a separator where palmitic and stearic acids are separated from the hydrogen gas mixture. The hydrogen gas mixture is recycled to the fresh feed stream, and 145.0 mol gas/h of this recycle stream is purged to prevent the buildup of nitrogen gas. flow rate: What is the molar flow rate of the fresh hydrogen and nitrogen gas mixture to the process? What is the composition of the purge stream? mol gas/h
Transcribed Image Text:Sunflower oil contains 0.070 mol palmitic acid (C₁6H320₂)/mol, 0.060 mol stearic acid (C18H3602)/mol, 0.28 mol oleic acid (C₁8H340₂)/mol, and 0.59 mol linoleic acid (C₁8H320₂)/mol. To create margarine from sunflower oil, the liquid oleic and linoleic acids are hydrogenated in the presence of a metal catalyst to form solid stearic acid. C18H3402 + H₂- → C18H3602 -> C18H3202 +2H₂ → C18H360₂ - At a margarine production facility, a stream of 490.0 mol sunflower oil/h is fed into a reactor. The fresh hydrogen source available is a mixture containing 0.95 mol H₂/mol and 0.050 mol N₂/mol. N₂ is inert in this process. To ensure complete hydrogenation, the hydrogen gas mixture is introduced into the reactor in 70.0% excess. All reaction products leave the reactor and proceed to a separator where palmitic and stearic acids are separated from the hydrogen gas mixture. The hydrogen gas mixture is recycled to the fresh feed stream, and 145.0 mol gas/h of this recycle stream is purged to prevent the buildup of nitrogen gas. flow rate: What is the molar flow rate of the fresh hydrogen and nitrogen gas mixture to the process? What is the composition of the purge stream? mol gas/h
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