Methanol is synthesized from carbon monoxide and hydrogen in a
catalytic reactor.
The fresh feed to the process contains 32.0 mol% CO, 64.0 mol%
H2 and 4.00 mol% N2. This stream is mixed
with a recycle stream in a ratio of 4.00 mol recycle / 1 mol fresh
feed to produce the feed to the reactor, which contains 14.0 mol%
N2.
The reactor effluent goes to a condenser from which two streams
emerge: a liquid product stream containing essentially all of the
methanol formed in the reactor, and a gas stream containing all of
the CO, H2, and N2 leaving the reactor.
The gas stream is split into two fractions; one is removed from the
process as a purge stream, and the other is the recycle stream that
combines with the fresh feed to the reactor.
For a methanol production rate of 100.0 mol/h, calculate the fresh
feed rate (mol/h), the molar flow rate and composition of the purge
gas, and the overall and single-pass conversions.
Fresh feed rate: | mol/h |
Purge rate: | mol/h |
mol fraction CO in purge: | |
mol fraction N2 in purge: | |
Overall CO conversion: | % |
Single-pass CO conversion: | % |
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