Feed gas to a methanol synthesis unit contains 66.6% hydrogen, 33.3% carbon monoxide and 0.1% nonreactive impurity. The plant produces 100 m3 per hour of methanol with 15% conversion in the reactor. The methanol product is condensed and separated from the unreacted gases which are recycled. The recycled stream contains 33% carbon monoxide, 66% hydrogen and 1 % impurity. Take the density of methanol to be 780 kg per cubic meter. What must be the purge rate to maintain the impurity concentration in the recycle below 1%? What is the rate of recycle stream?
Feed gas to a methanol synthesis unit contains 66.6% hydrogen, 33.3% carbon monoxide and 0.1% nonreactive impurity. The plant produces 100 m3 per hour of methanol with 15% conversion in the reactor. The methanol product is condensed and separated from the unreacted gases which are recycled. The recycled stream contains 33% carbon monoxide, 66% hydrogen and 1 % impurity. Take the density of methanol to be 780 kg per cubic meter. What must be the purge rate to maintain the impurity concentration in the recycle below 1%? What is the rate of recycle stream?
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
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2. Feed gas to a methanol synthesis unit contains 66.6% hydrogen, 33.3% carbon monoxide and 0.1% nonreactive impurity. The plant produces 100 m3 per hour of methanol with 15% conversion in the reactor. The methanol product is condensed and separated from the unreacted gases which are recycled. The recycled stream contains 33% carbon monoxide, 66% hydrogen and 1 % impurity. Take the density of methanol to be 780 kg per cubic meter.
What must be the purge rate to maintain the impurity concentration in the recycle below 1%?
What is the rate of recycle stream?
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