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Zeolite supported palladium catalysts for hydroalkylation of phenolic model compounds

SYSNO ASEP	0476368
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Zeolite supported palladium catalysts for hydroalkylation of phenolic model compounds
Author(s)	Akhmetzyanova, U. (CZ) Opanasenko, Maksym (UFCH-W)_{RID, ORCID} Horáček, J. (CZ) Montanari, E. (IT) Čejka, Jiří (UFCH-W)_{RID, ORCID, SAI} Kikhtyanin, O. (CZ)
Source Title	Microporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811 Roč. 252, NOV 2017 (2017), s. 116-124
Number of pages	9 s.
Language	eng - English
Country	NL - Netherlands
Keywords	Phenol hydroalkylation ; Cyclohexylcyclohexane ; MWW
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
R&D Projects	GBP106/12/G015 GA ČR - Czech Science Foundation (CSF)
Institutional support	UFCH-W - RVO:61388955
UT WOS	000407658700012
EID SCOPUS	85020518184
DOI	10.1016/j.micromeso.2017.06.020
Annotation	Bifunctional palladium-based catalysts with zeolite supports were investigated in phenol hydroalkylation, representing high-potential model reaction for transformation of lignocellulose-derived compounds to automotive and jet fuels. Conversion of phenol correlated with the amount of accessible acid sites and textural properties of the solid acid support: under the same reaction conditions and at the same Pd loading. The highest phenol conversions (99-100%) were obtained for large-pore zeolite Beta and mesopore-containing MCM-36/56 materials. The selectivity towards the targeted cyclohexylcyclohexane on different supports decreased in the following order Beta (57%) > MCM-36 (42%) approximate to MCM-56 (37%) > MCM-22 (20%), while the contribution of undesired reaction termination through formation of non-reactive cyclohexane was more pronounced for the expanded MCM-36/56 based catalysts. Substrate consumption after 60 min over the least active MCM-22-based catalysts increased with increasing Pd content as follows 27% (0.3 wt % Pd), 80% (0.5 wt % Pd) and 98% (0.7 wt % Pd). High activity of Pd/Beta catalysts was not vitiated even by sintering effects being the most pronounced for Beta as a support. (C) 2017 Elsevier Inc. All rights reserved.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2018

Number of the records: 1