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Catalyst Deactivation

The decrease in hydroprocessing response speed over time on stream is a sign of deactivation. In actual refineries, rising temperature counteracts a drop in activity. The characteristics of the feeds, the operating environment, and the structure of the catalysts all have a role in how much deactivation occurs. It is reasonable to expect a considerable difference between the deactivation of the catalyst during the hydroprocessing of heavy feeds and light feeds. In the case of atmospheric distillates, poisoning from N-compounds and coke deposition predominates in the catalyst deactivation process. Because they preferentially bind to active sites, the N-bases, which are found in all petroleum feeds, contribute to the catalyst's deactivation and slow down the hydrogen activation process.

Committee Members
Speaker at Catalysis, Chemical Engineering & Technology 2026 - Dai Yeun Jeong

Dai Yeun Jeong

Asia Climate Change Education Center, Korea, Republic of
Speaker at Catalysis, Chemical Engineering & Technology 2026 - Sergey Suchkov

Sergey Suchkov

R&D Director of the National Center for Human Photosynthesis, Mexico
Speaker at Catalysis, Chemical Engineering & Technology 2026 - Enrico Paris

Enrico Paris

CREA-IT & DIAEE, Italy
CAT 2026 Speakers
Speaker at Catalysis, Chemical Engineering & Technology 2026 - Jiri Dedecek

Jiri Dedecek

J Heyrovsky Institute of Physical Chemistry , Czech Republic
Speaker at Catalysis, Chemical Engineering & Technology 2026 - Osman Adiguzel

Osman Adiguzel

Firat University, Turkey
Speaker at Catalysis, Chemical Engineering & Technology 2026 - Rabeharitsara Andry Tahina

Rabeharitsara Andry Tahina

GPCI-ESPA Antananarivo University, Madagascar

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