In: Other
Methanol is produced by reacting carbon monoxide and hydrogen. A fresh feed stream containing CO and H2 joins a recycle stream and the combined stream is fed to a reactor. The reactor outlet stream flows at a rate of 350 mole/min and contains 10.6 wt% H2, 64 wt% CO and 25.4 wt% CH3OH. This stream enters a cooler in which most of the methanol is condensed. The liquid methanol condensate is withdrawn as a product, and the gas stream leaving the condenser – which contains CO, H2 and 0.4 mole % uncondensed CH3OH vapor – is the recycle stream that combines with the fresh feed. Determine a) the molar flow rates of CO and H2 in the fresh feed b) the production rate of liquid methanol (mol/min) and c) the molar flow rate of the recycle stream.
weight percent is converted to mole percent because flow rate is given as molar flow rate and then with proper mole balance all the flow rate is calculated.