Adsorbents for Paraffin Isomerization
The Penex and Butamer processes are fixed-bed processes that use high-activity
chloride-promoted noble metal catalysts to isomerize C4-C6 hydrocarbon
fractions in refinery streams. In order to protect these expensive
isomerization catalysts, highly efficient molecular sieve adsorbents
(HPG-250 adsorbent and PDG-418 adsorbent) are used for dehydration.
They also remove trace impurities (primarily sulfur and oxygenate species)
in the liquid and make-up hydrogen feed to the isomerization units.
The isomerate liquid product can contain traces of chlorides. If these chlorides
are not removed effectively in the product stabilizer column (due to upset
conditions) they can cause equipment corrosion or damage downstream adsorbents
(e.g., in a Molex unit) or catalysts. UOP's PCL-100 adsorbent is a proven product
that is very effective for removing chlorides in this liquid stream.
For more information on UOP products for dehydration and purification in this
application, call your local sales office or contact us using our information request form.
For more on UOP’s isomerization processes, click the following link:
Isomerization
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