An Effect of a Support Nature and Active Phase Morphology on Catalytic Properties of Ni-Containing Catalysts in Hydrogenation of Biphenyl

An Effect of a Support Nature and Active Phase Morphology on Catalytic Properties of Ni-Containing Catalysts in Hydrogenation of Biphenyl

Ni/Sup catalysts were prepared, where SBA-15, γ-Al 2 O 3 , SiO 2 were used as supports (Sup). The synthesized catalysts were investigated by the methods of low-temperature nitrogen adsorption, temperatureprogrammed reduction (TPR), and high-resolution transmission electron microscopy. The catalytic...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of applied chemistry Vol. 91; no. 10; pp. 1701 - 1710
Main Authors: Chernova, M. M., Minayev, P. P., Martynenko, Ye. A., Pimerzin, Al. A., Yeremina, Yu. V., Verevkin, S. P., Pimerzin, A. A.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-10-2018
Springer Nature B.V
Subjects:
Aluminum oxide
Aromatic compounds
Catalysis
Catalysts
Chemical synthesis
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Feed rate
Heptanes
Hydrogenation
Industrial Chemistry/Chemical Engineering
Liquid phases
Morphology
Nickel
Rate constants
Silicon dioxide
Substrates
Transitional aluminas
Transmission electron microscopy
biphenyl
Ni-containing catalysts
SiO
Al
hydrogenation
SBA-15
O
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ni/Sup catalysts were prepared, where SBA-15, γ-Al 2 O 3 , SiO 2 were used as supports (Sup). The synthesized catalysts were investigated by the methods of low-temperature nitrogen adsorption, temperatureprogrammed reduction (TPR), and high-resolution transmission electron microscopy. The catalytic properties of the prepared catalysts were tested in liquid phase hydrogenation of biphenyl under conditions of a flow installation at temperatures of 60–100°C, pressure of 4 MPa, volumetric feed rate of 4–10 h –1 and H 2 : feed ratio of 1500 nM.. A 1 wt % solution of biphenyl in heptane,, as a model mixture, was used. It has been established that the activity of nickel hydrogenation catalysts depends on the nickel content and the type of support. The activity of supported nickel catalysts decreases in the series Ni-12/SBA-15 > Ni-12/SiO 2 >> Ni-12/Al 2 O 3 . The kinetic characteristics of the biphenyl hydrogenation reaction were determined: the rate constants and activation energy for the hydrogenation of the first and second aromatic rings of the substrate molecule.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427218100191