NDLI: The deactivation and regeneration of HZSM-5 zeolite catalysts for synthesis of dichlorophenylphosphine in the gas phase

Content Provider	IEEE Xplore Digital Library
Author	Zhou, Zhi-heng Fan, Tian-bo Liu, Yun-yi
Copyright Year	2012
Description	Author affiliation: College of Chemical Engineering, Shenyang University of Chemical Technology, Liaoning China (Zhou, Zhi-heng; Fan, Tian-bo; Liu, Yun-yi)
Abstract	The reaction that synthesis of dichlorophenylp-hosphine over the catalyst HZSM-5 zeolite catalyst in the gas phase was studied as the target. The deactivation and regeneration characteristics of HZSM-5 catalyst were studied by N2 adsorption-desorption, scanning electron microscopy (SEM), X-Ray diffraction, FT-IR, TG-DTG tests. The results revealed that the structure of HZSM-5 zeolite scarcely damaged in the catalyst deactivation and regeneration process. It was found that both coke deposition and local dealumination of tetrahedral framework aluminum were the crucial factors in the deactivation of HZSM-5. Due to the coke forming on the catalyst surface and dealumination , the pore mouth of zeolite channels were blocked. The coke consisted mainly of aromatic compounds which from product depth oxidation. Regeneration of HZSM-5 catalyst had high activity and stability for the target reaction.
Starting Page	1
Ending Page	4
File Size	459513
Page Count	4
File Format	PDF
ISBN	9781467344975
ISSN	21544824
e-ISBN	9781889334479
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-24
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	TSI Press
Subject Keyword	Educational institutions Carbon Scanning electron microscopy Surface treatment X-ray scattering Temperature measurement Aluminum regeneration dichlorophenylphosphine HZSM-5 zeolite coking deactivation
Content Type	Text
Resource Type	Article

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