XyMax (xylene isomerization)

Two training and support personnel in ExxonMobil hard hats and jumpsuits in the foreground with a plant in operation in the background

ExxonMobil offers two highly selective xylene isomerization processes – XyMaxSM isomerization and Advanced MHAI – for commercial licensing to produce paraxylene and/or orthoxylene from feedstocks rich in C8 aromatics. These technologies can be easily retrofitted into existing equipment, where they can debottleneck operations, boost product yields, increase profits and provide more flexibility than competitive processes. XyMax and Advanced MHAI services provide full support for licensees from initial consultation through technology transfer and ongoing improvements.

With more than 35 years of commercial deployment, ExxonMobil xylene isomerization technologies have been licensed throughout the Americas, Europe, the Middle East and Asia. Approximately one-third of the world’s paraxylene capacity is produced using our technology.

XyMax advantages

  • High ethylbenzene conversion with low xylene losses
  • Advanced catalyst technology
  • Simple fixed-bed process