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GT-TransAlkSM

GT-TransAlkSM process technology produces benzene and xylenes through transalkylation of the methyl groups from toluene and/or heavy aromatics streams.  The technology features a proprietary zeolite catalyst and can accommodate varying ratios of feedstock, while maintaining high activity and selectivity.  GT-TransAlkSM is especially well-suited for processing heavy aromatics (C9-C10+) with a long run length, in order to maximize the production of xylenes from the aromatic feedstock.  High purity benzene is produced by simple distillation.
 
Advantages
  • Simple, low cost fixed-bed reactor design
  • Selective toward xylene production, with high toluene/C9 conversion rates
  • Physically stable catalyst
  • Flexible to handle up to 100% C9+ components in feed
  • Flexible to handle benzene recycle to increase xylene yields
  • Moderate operating parameters; catalyst can be used as replacement to other transalkylation units, or in grass roots designs
  • Decreased hydrogen consumption due to low cracking rates
  • Efficient heat integration scheme, reduces energy consumption
  • Benzene can be produced at 99.9% purity by simple distillation