Methanol is produced in the reaction of carbon dioxide and hydrogen: CO₂ + 3 H₂ --> CH₃OH + H₂O The fresh feed to the process contains hydrogen, carbon dioxide, and 0.23 mole% inerts (I). The reactor effluent passes to a condenser that removes essentially all the methanol and water formed and none of the reactants or inerts. The latter substances are recycled to the reactor. To avoid buildup of the inerts in the system, a purge stream is withdrawn from the recycle. The feed to the reactor (not the fresh feed to the process) contains 24.7 mole% carbon dioxide, 73.2 mole% hydrogen gas, and the balance inerts. The single-pass conversion of hydrogen is 65%. The methanol production rate is 247 kmol/hr. Hint - draw a block flow diagram (BFD). For any responses that are %, do not put the percent symbol in the checker. a) molar flow rate of the fresh feed (kmol/hr) b) mole percentage of hydrogen in the fresh feed c) total recycle flow (kmol/hr) d) total purge flow (kmol/hr) e) mole percentage of carbon dioxide in the purge
Methanol is produced in the reaction of carbon dioxide and hydrogen:
CO₂ + 3 H₂ --> CH₃OH + H₂O
The fresh feed to the process contains hydrogen, carbon dioxide, and 0.23 mole% inerts (I). The reactor effluent passes to a condenser that removes essentially all the methanol and water formed and none of the reactants or inerts. The latter substances are recycled to the reactor. To avoid buildup of the inerts in the system, a purge stream is withdrawn from the recycle. The feed to the reactor (not the fresh feed to the process) contains 24.7 mole% carbon dioxide, 73.2 mole% hydrogen gas, and the balance inerts. The single-pass conversion of hydrogen is 65%. The methanol production rate is 247 kmol/hr. Hint - draw a block flow diagram (BFD). For any responses that are %, do not put the percent symbol in the checker.
a) molar flow rate of the fresh feed (kmol/hr)
b) mole percentage of hydrogen in the fresh feed
c) total recycle flow (kmol/hr)
d) total purge flow (kmol/hr)
e) mole percentage of carbon dioxide in the purge
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