The 3 reactions below allow the production of phenol from benzene:

The pass conversions for these reactions are 90%, 90%, and 100%, respectively. In the first two, only reagents are allowed in the feeds. In the third, in addition to the reactants, NaCl, C₆H₅Cl and NaOH are allowed. Propose 3 alternative flowcharts for this reaction system.

Question about process synthesis and optimization.

R1: C6H6 + Cl2 CH,Cl +HCI R2: C6H3Cl + 2NaOH +H2O C6H ONa+ NaCl +2 H2O R3: C6H,ONa + HCl +H2O C6H,OH + NaCl + H2O