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Toluene

Toluene disproportionation (MTDP-3)  

Learn about MTDP-3 toluene disproportionation technology, available for license from ExxonMobil.

Exxonmobil’s MTDP-3 process is the state-of-the-art process for toluene disproportionation to benzene and mixed xylenes. The technology, based on a proprietary zeolite catalyst, offers high product yields at high toluene conversion. MTDP-3 is designed to process toluene and limited amounts of C9 aromatics, and can allow for inexpensive debottlenecking of existing toluene disproportionation (TDP) facilities. MTDP-3 is ideal for toluene upgrade to more valuable chemicals without investing in paraxylene separation facilities. Benzene product exceeds 99.9% purity, thus additional extraction capacity is not required. MTDP-3 has been operated commercially at multiple licensees’ sites for more than 20 years.

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Key benefits

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    Lower costs

    • Low catalyst costs
    • Low H2 consumption
    • Low operating costs

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    High product yields

    • High benzene and mixed xylene yields
    • Superior xylene/benzene ratio

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    High product purity

    • Benzene product with >99.9% purity

Advantages:  

  • Very high toluene conversion per pass
  • High benzene product and mixed xylenes product yields
  • High weight hourly space velocity
  • Superior xylenes/benzene ratio
  • Benzene product with greater than 99.9% purity
  • Very low H2 consumption
  • Low catalyst cost
  • Low operating cost
  • Long catalyst cycles with stable product yields across the cycle

Featured resources

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  • ExxonMobil Chemical play button icon

    Introduction to ExxonMobil Catalysts and Technology Licensing

    See an overview of ExxonMobil's refining, chemical manufacturing and gas processing technologies along with their assortment of specialty catalysts. These technologies and catalysts are used at ExxonMobil's own facilities and are offered for license to customers.

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