Toluene reacts with H2 to form benzene (B), but a side reaction occurs in which a by-product dipheny

Toluene reacts with H2 to form benzene (B), but a side reaction occurs in which a by-product diphenyl (D) is formed:

C7H8          +       H2              ------------------>  C6H6     +     CH4                       (a)
Toluene              hydrogen                          benzene        methane


2C7H8          +       H2              ------------------>  C12H10     +    2 CH4              (b)


The process is shown in the figure below. Hydrogen is added to the gas recycle stream to make the ratio of H2 to Ch4 1 to 1 before the gas enters the mixer. The ratio of H2 to toluene entering the reactor at G is 4H2 to 1 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% per pass. Calculate the moles of RG and moles RL per hour.

Data:  Compound:    H2      CH4       C2H6      C7H8      C12H10
                                    2          16            78           92           154



CHE 200 -Chemical Engineering Fundamentals Assignment question