T wo sequential hydrogenation reactions take place in a continuous reactor at st

Question

T wo sequential hydrogenation reactions take place in a continuous reactor at steady state The feed stream contains 15.0 mole% C2H2, 62.0 mole% and 23.0 mole% inerts. The fractional conversion of C2H2 to C2H4 is 0.610 and the fractional conversion of C2H4 to C2H6 is 0.450 100 mol basis Reactor 15.0 mole% C2H2 62.0 mole% H2 23.0 mole% Inerts n1 mol C2H2 n2 mol C2H4 n3 mol C2H6 n4 mol H2 n5 mol Inerts If the basis of the feed stream is 100 mol, what are the moles of each gas in the product stream? Number 5.85 mol C,H

Explanation / Answer

Moles of H2 left = 62 - moles of H2 used

= 62 - 5.02 - 2* 4.12

= 48.74 mol H2

Mole inert = 23 mol

Total moles in product stream = 5.85+5.02+4.12+48.74+23

= 86.73 mol

Percent of C2H2 = 100*5.85/86.73 = 6.745%

Percent of C2H4 =100*5.02/86.73 = 5.788%

Percent of C2H6 = 100*4.12/86.73 =4.75%

Percent of H2 = 100*48.74/86.73 = 56.197%

Percent of inert =100*23/86.73 = 26.519%

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