Patent ID: 9556087
Date: 2017-01-31
CPC Classifications: B01J,C07C,Y02P

Claim:
1. A process for producing methyl-substituted biphenyl compounds, the process comprising: (a) contacting a feed comprising at least one aromatic hydrocarbon selected from the group consisting of toluene, xylene and mixtures thereof with hydrogen in the presence of a hydroalkylation catalyst comprising a molecular sieve of the MCM-22 family under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes and/or (dimethylcyclohexyl)xylenes together with dialkylated C (b) removing at least part of the dialkylated C (c) dehydrogenating at least part of the dehydrogenation feed in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds.