Journal
CHINESE JOURNAL OF CATALYSIS
Volume 41, Issue 7, Pages 1048-1061Publisher
SCIENCE PRESS
DOI: 10.1016/S1872-2067(20)63552-5
Keywords
Catalyst; Coke; Deactivation; Regeneration; Oxidation; Gasification; Hydrogenation
Funding
- National Natural Science Foundation of China [91834302]
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In industrial catalytic processes, coke deposition can cause catalyst deactivation by covering acid sites and/or blocking pores. The regeneration of deactivated catalysts, thereby removing the coke and simultaneously restoring the catalytic activity, is highly desired. Despite various chemical reactions and methods are available to remove coke, developing reliable, efficient, and economic regeneration methods for catalytic processes still remains a challenge in industrial practice. In this paper, the current progress of regeneration methods such as oxidation (air, ozone and oxynitride), gasification (carbon dioxide and water steam), and hydrogenation (hydrogen) is reviewed, which hopefully can shed some light on the design and optimization of catalysts and the related processes. (C) 2020, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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