Question: The effluent gas from a refinery with a compostion 83% Ch4, 6 mol% C2H6, 7 mol% C3H8 and 4mol% n-C4H10 is fed into an absober

The effluent gas from a refinery with a compostion 83% Ch4, 6 mol% C2H6, 7 mol% C3H8 and 4mol% n-C4H10 is fed into an absober to reduce the propane content of effluent before recycling. The absorber is operated at 40C and 500kPa. and 80% of of propane must be removed. Lean oil is used in the absorber to remove propane and 0.5mol% C4H10. Determine the compositions of the gas and liquid streams leave the absorber N=9

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