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17-09-2019

100th reference for Axens high performance selective hydrogenation catalysts

Selective hydrogenation is the best technology when it comes to purifying highly valuable olefinic and aromatic streams produced by steam crackers and FCC units.

Axens’ latest generation of high performance selective hydrogenation catalysts combines state-of-the-art alumina carriers and cutting edge metal impregnation technologies. High activity, easy regeneration highly competitive cost-to-fill, are among the key advantages of these catalysts. They include LD 485 (Pd-based), LD 465 (Pd-based), LD 541 (Ni-based), LD 551 (Ni-based), mainly for first stage Pygas hydrogenation, and HR 606 (CoMo) for second stage Pygas hydrogenation.

This 100th reference is the result of a close collaboration with Galp, an important actor in the European refining market. In the framework of a catalyst replacement in a Galp selective hydrogenation unit that historically used palladium-based catalysts, Axens recommended a new approach by loading LD 541, a nickel-based catalyst, due to specificities in feedstock and operation of this particular unit. “Thanks to this new approach, Galp has significantly improved the unit’s operation in terms of performance and cycle length, illustrating thus the efficiency of the relation between Axens and Galp”, stated Yoeugourthen Hamlaoui, Technologist Hydrogenation & Reforming at Axens.

With this latest generation of catalysts, the Galp Selective Hydrogenation unit performs successfully in terms of selectivity and conversion, as it also uses for the first time the multi-awarded in first stage Pygas hydrogenation LD 541.

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