Toluene reacts with H, to form benzene (B), but a side reaction occurs in which a by- product diphenyl (D) is formed: CH H2 C6H6 CH (a) + Toluene hydrogen benzene methanc 2C,Hg H2 C12H10 + diphenyl 2CH4 (6) The process is shown in Figure P12.20. Hydrogen is added to the gas recycle stream to make the ratio of H, to CH, 1 to 1 before the gas enters the mixer. The ratio of H, to toluene entering the reactor at G is 4H, to i toluene. The conversion of toluene to benzene on one pass through the reactor is 80%, and the conversion of toluene to the by-product diphenyl is 8% on the same pass. Calculate the moles of Ra and moles of Ru per hour. Data: Compound: . CHE C12H10 MW: 2 16 78 92 154 Makeup M 100% H2 H2 CH P Purge Gas recycle RG H2 CH4 only F Feed 100% toluene 3450 lb/hr Mixer Reactor Separator Gross feed G B Benzene 100% Liquid recycle RL 100% toluene D Diphenyl 100% Figure P12.20