Acid-Modified Hierarchical Porous Rare-Earth-Containing Y Zeolite as a Highly Active and Stable Catalyst for Olefin Removal | Zendy

HaiBin Yu | Zendy; Jiazhong Zang | Zendy; Guanfeng Liu | Zendy; Meihua Hong | Zendy; Rui Chen | Zendy; Tiehong Chen | Zendy

Open Access

Acid-Modified Hierarchical Porous Rare-Earth-Containing Y Zeolite as a Highly Active and Stable Catalyst for Olefin Removal

Author(s) -

HaiBin Yu,

Jiazhong Zang,

Guanfeng Liu,

Meihua Hong,

Rui Chen,

Tiehong Chen

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c01457

Subject(s) - oxalic acid , catalysis , olefin fiber , zeolite , leaching (pedology) , chemistry , porosity , rare earth , inorganic chemistry , chemical engineering , materials science , organic chemistry , mineralogy , environmental science , soil science , engineering , soil water

Rare-earth-containing ultrastable Y zeolite (ReUSY) was modified by oxalic acid solution leaching treatment and applied in industrial units for catalytic olefin removal from aromatic hydrocarbons. The porous structure and amount of acidity of the modified ReUSY (denoted as ReUSY- x , where x indicated the amount of oxalic acid in solution) could be tuned by different concentrations of oxalic acid solution, and the ReUSY- x samples exhibited different catalytic performances. Based on the best catalytic performance of ReUSY-25, an industrial catalyst was prepared and applied in industrial units for catalytic olefin removal. The industrial catalyst exhibited excellent activity and regeneration stability with a long lifetime of about 2 years, which was about 13 times longer than that of activated clay.

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