Catalyst deactivation is a significant challenge that affects the performance and cost-effectiveness of catalytic processes. The primary causes include poisoning, sintering, fouling, and thermal degradation. Poisoning occurs when undesirable molecules block active sites, while sintering at elevated temperatures causes catalyst particles to fuse, reducing surface area. Fouling, from the accumulation of byproducts, and thermal degradation, from prolonged high temperatures, also contribute to deactivation. Catalyst deactivation and regeneration are interconnected processes, as effective regeneration techniques are necessary to restore catalyst activity. For carbonaceous fouling, oxidative regeneration removes carbon deposits, while thermal regeneration reverses sintering. Advancements in catalyst design, such as more resistant materials and stabilizers, help minimize deactivation. Efficient regeneration improves sustainability by reducing the need for new catalysts and minimizing waste. Addressing these challenges helps lower operational costs, improve efficiency, and support a more sustainable future in catalytic technologies.
Stanislaw Dzwigaj
Sorbonne University, France
Thomas J Webster
Brown University, United States
Dai Yeun Jeong
Asia Climate Change Education Center, Korea, Republic of
Sergey Suchkov
N.D. Zelinskii Institute for Organic Chemistry of the Russian Academy of Sciences, Russian Federation
Jiri Dedecek
J Heyrovsky Institute of Physical Chemistry , Czech Republic
Vladimir G Chigrinov
Hong Kong University of Science and Technology, Russian Federation
Osman Adiguzel
Firat University, Turkey
Uday Som
Shizuoka University, Japan
Rabeharitsara Andry Tahina
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