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Reliable, high purity and efficient aromatics recovery to enhance profitability Recover Para-xylene from mixed Xylenes
Recover Para-xylene from mixed Xylenes
The UOP Parex™ process is an effective separation method for the recovery of para-xylene from mixed xylenes offering proven high product purity, high product recovery, high on-stream efficiency, and extended adsorbent life. Since commercializing the technology in 1971, UOP has licensed more than 100 Parex units around the world ranging in size from 21,000 MTA to 1,600,000 MTA of para-xylene production.
Unlike conventional batch chromatography, the Parex process utilizes a technique known as simulating-moving-bed separation. The process simulates a moving bed of adsorbent with a continuous counter-current flow of the liquid feed. Feed and products enter and leave the adsorbent bed continuously at nearly constant compositions.
Our latest efforts in adsorbent innovation introduced the ADS-47 adsorbent, which offer the highest Parex capacity and lowest pressure drop available to date from our portfolio.
The Parex process, which facilitates efficient downstream para-xylene conversion to terephthalic acid and ultimately polyester fiber, films, and resin, offers:
UOP Parex process services may include:
Recover High Purity Benzene and Toluene
The UOP Extractive Distillation (ED) Sulfolane™ process uses Sulfolane solvent for the recovery of high purity benzene and toluene products from reformate splitter overhead. It is a simplified, low capital investment alternative (as much as 80% less) to the traditional Sulfolane process. The process offers:
The UOP MX Sorbex™ process recovers meta-xylene from mixed xylenes feedstocks. Meta-xylene is used in the production of purified isophthalic acid (PIA), an intermediate in the production of polyester resins. The most rapidly growing application for PIA is as co-polymer in polyethylene terephthalate (PET) resin bottles.
The UOP MX Sorbex process has become the new industry standard for meta-xylene recovery due to its reduced environmental impact, inherent safety and improved economics compared to HF=BF3 extraction technology.
The MX Sorbex process can be integrated into an existing UOP aromatics complex and offers several distinct advantages:
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