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ExxonMobil Chemical has led the development and application of leading-edge technologies for xylenes and benzene production since the discovery of ZSM-5 in the late 1960s.
Technologies for paraxylene and benzene production include: selective and non-selective toluene disproportionation, xylene isomerization, heavy aromatics transalkylation, selective toluene alkylation with methanol, and aromatics treatment.
For customers interested in constructing a complete grassroots complex, ExxonMobil’s alliance with Axens S.A. offers all of the technologies required to meet your needs.
Typical process flow with technologies for xylenes and benzene production
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ExxonMobil offers two highly selective xylene isomerization processes – XyMax isomerization and Advanced MHAI – for commercial licensing to produce paraxylene and/or orthoxylene from feedstocks rich in C8 aromatics.
The EMTAM℠ process is a breakthrough technology which maximizes production of valuable paraxylene product while lowering feed and energy costs.
The LPI process is the latest generation of liquid phase isomerization technology.
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.
The TransPlus (heavy aromatics transalkylation) process is a low-cost, high-conversion solution to effectively transalkylate C9+ heavy aromatics and toluene/benzene into higher-value mixed xylenes and high-purity benzene.
Olgone technology is designed to significantly extend the cycle length of existing clay treaters, which will reduce the amount of spent clay that is generated.
PxMax technology is ExxonMobil’s newest Selective Toluene Disproportionation (STDP) technology. The key ingredient is the novel PxMax catalyst that offers improved yields, excellent stability and ease of operation.
Learn how to extend cycles of existing aromatic stream treaters and improve cost savings with leading edge aromatics treatment technology
State-of-the-art, superior yield processes for selective toluene disproportionation