Hey Guys
I am a new student here. Thanks for this great forum.
For the past few days, I was trying to Simulate a PFR for the process of Hydrodealkylation of Toluene to produce Benzene.
C7H8 + H2 ----> C6H6 + CH4
and the reversible undesired reaction:
2C6H6 <----> C12H10 + H2
The process occurs thermally without the involvement of a catalyst as the following kinetics:
Rate of First Rxn = P(Toluene) * P(Hydrogen)^0.5 * (3686000) * exp(-90800 / RT)
Rate of 2nd Rxn = P(benzene)^2 (90000) * exp(-90800)/RT) - P(Biphynel) * P(Hydrogen) * (255300) * exp(-90800/RT)
Where P(Component) = The partial P of the component
The reaction occurs at a T 600 - 750 C.
The problem that I am facing is that I am not able to specify the conversion of toluene at 72% while maintaining the electivity of Benzene/ Biphenyl at 17.97%. Can you guys guide me on the way of setting these two reactions in a PFR and control the selectivity by controlling the flow rates of hydrogen and toluene to the reactor.
Best Regards
Note:
I am able to reach the conversion as 72%, but the selectivity is 11.15%.. The question is: is there any way to increase the selectivity to 17.97% without affecting the conversion ?
Edited by Maankhalil, 03 November 2017 - 10:57 AM.