Silica Management

Silicon is a well-known widespread poison for hydroprocessing catalysts.

Silicon builds-up on the catalyst leads to decrease of access to the active sites and by extent to a cycle reduction. Silicon poisoning is not only an issue for hydrotreating catalysts: contamination of reforming catalysts may also occur as silicon breakthrough from naphtha hydrotreaters. Axens can propose specific strategies and a portfolio of silica traps to control this contamination.

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Reactor Internals

In today’s complex environment, refineries and petrochemical plants around the world need advanced solutions to reach operational excellence. In units featuring fixed-bed reactors, the use of high-efficiency reactor internals are essential to help achieve this goal.


Catalyst Protection Systems

Impurities, fines, gums, scales and inorganic matter can be carried over with the feed. While catalyst performance is steadily increasing due to constant innovation, they are often more sensitive to poisoning.


Technical Support & Performance Management

Axens is fully committed to be your partner and provide assistance and support during your project lifecycle, from conception to start-up & running operations.


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