UDEC Group

Grading Products

When high activity catalysts are loaded at the top of a commercial hydrotreater, the reactive species present in the feed can be converted too quickly, beyond the rate that hydrogen can be replenished. This can create areas of localized hydrogen starvation which promotes polymerization and coke formation resulting in shorter than expected cycles.

UDEC has a complete line of active Grading Materials that gradually convert reactive species and control the rate of hydrogenation to reduce fouling.

With over 35 years of experience, UDEC is the innovative industry leader and specialist in process materials, speciality chemicals and adsorbents.

Browse products


1 Lions Pride Building,Zandwyk Industrial ParkOld Paarl Road, Paarl, 7646

+27 21 872 8125



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