4. A catalytic dehydrogenation process shown in Figure SAT6.3P4 produces 1, 2-butadiene (C4H6) from pure normal butane (C4H10). The product stream contains 75 mol/hr of H2 and 13 mol/hr of C4H10 as well as C4H6. The recycle stream is 30% (mol) C4H10 and 70% (mol) C4H6, and the flow is 24 mol/hr. Pure C4H10 C4H4 -C4H6 + 2H2 Separator nH₂ = 75 mol/hr ПC4H10 =13 mol/hr F = ? mol/hr Псане = ? Recycle nc4H10 = 0.30 ncate = 0.70 Figure SAT6.3P4 a. What are the feed rate, F, and the product flow rate of C4H6 leaving the process? b. What is the single-pass conversion of butane in the process?