Selective hydrogenation of phenol to cyclohexanone over palladium supported on calcined Mg/Al hydrotalcite

NCUIR > Engineering College > National Central University Department of Chemical & Materials Engineering > journal & Dissertation > Item 987654321/26486

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26486

Title:	Selective hydrogenation of phenol to cyclohexanone over palladium supported on calcined Mg/Al hydrotalcite
Authors:	Chen,YZ;Liaw,CW;Lee,LI
Contributors:	化學工程與材料工程學系
Keywords:	CATALYSTS
Date:	1999
Issue Date:	2010-06-29 17:29:10 (UTC+8)
Publisher:	中央大學
Abstract:	Calcined Mg/Al hydrotalcites (CHTs) with various atomic ratios of Mg/Al were prepared and used as supports for palladium catalysts. Selective hydrogenation of phenol to cyclohexanone was investigated over Pd/CHT catalysts and compared with Pd/Al2O3, Pd/SiO2, Pd/CaO-Al2O3 and Pd/MgO. The Pd/CHT(2-4) catalysts showed high reactivities and selectivities to cyclohexanone, reaching 95% selectivity with 40% conversion. For Pd/CHT(2-4) catalysts, the calcined hydrotalcites exhibit strong base sites that were more effective than acid sites to affect the selectivity of cyclohexanone. The 0.3%Pd/CHT(2) catalyst was a good candidate for one-step process of cyclohexanone formation. On it the reaction orders of rate were found to be 2 with respect to the hydrogen pressure and -1 with respect to the partial pressure of phenol. (C) 1999 Elsevier Science B.V. All rights reserved.
Relation:	APPLIED CATALYSIS A-GENERAL
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	364	View/Open

社群 sharing