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Title: CO hydrogenation on nickel-based catalysts: Effects of copper addition

Abstract

The effect of copper addition on the catalytic properties of silica-supported nickel catalysts for the reaction of CO hydrogenation in the temperature range of 200--500 C has been investigated. Different effects, positive or negative, depending on the temperature and the copper content, are described and explained. At low temperature (230 C), the addition of low copper content prevents the loss of the active surface by sintering without inhibiting the rate of CO hydrogenation too much. At high temperatures (450 C), high copper content is necessary to limit the accumulation of poisonous carbon products, but at the expense of CO conversion. On the basis of the various kinetic and morphologic effects of copper addition, an advanced description of the CO hydrogenation mechanism is also provided, assuming an active site formed by 2--3 adjacent Ni atoms, whatever the temperature or the copper content may be.

Authors:
;
Publication Date:
Research Org.:
Inst. de Recherches sur la Catalyse, Villeurbanne (FR)
OSTI Identifier:
20076104
Resource Type:
Journal Article
Journal Name:
Journal of Catalysis
Additional Journal Information:
Journal Volume: 192; Journal Issue: 1; Other Information: PBD: 15 May 2000; Journal ID: ISSN 0021-9517
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 10 SYNTHETIC FUELS; CARBON MONOXIDE; METHANATION; HYDROGENATION; NICKEL; COPPER; CATALYTIC EFFECTS; CHEMICAL REACTION KINETICS; SYNTHESIS GAS; METHANE

Citation Formats

Agnelli, M., and Mirodatos, C. CO hydrogenation on nickel-based catalysts: Effects of copper addition. United States: N. p., 2000. Web. doi:10.1006/jcat.2000.2828.
Agnelli, M., & Mirodatos, C. CO hydrogenation on nickel-based catalysts: Effects of copper addition. United States. doi:10.1006/jcat.2000.2828.
Agnelli, M., and Mirodatos, C. Mon . "CO hydrogenation on nickel-based catalysts: Effects of copper addition". United States. doi:10.1006/jcat.2000.2828.
@article{osti_20076104,
title = {CO hydrogenation on nickel-based catalysts: Effects of copper addition},
author = {Agnelli, M. and Mirodatos, C.},
abstractNote = {The effect of copper addition on the catalytic properties of silica-supported nickel catalysts for the reaction of CO hydrogenation in the temperature range of 200--500 C has been investigated. Different effects, positive or negative, depending on the temperature and the copper content, are described and explained. At low temperature (230 C), the addition of low copper content prevents the loss of the active surface by sintering without inhibiting the rate of CO hydrogenation too much. At high temperatures (450 C), high copper content is necessary to limit the accumulation of poisonous carbon products, but at the expense of CO conversion. On the basis of the various kinetic and morphologic effects of copper addition, an advanced description of the CO hydrogenation mechanism is also provided, assuming an active site formed by 2--3 adjacent Ni atoms, whatever the temperature or the copper content may be.},
doi = {10.1006/jcat.2000.2828},
journal = {Journal of Catalysis},
issn = {0021-9517},
number = 1,
volume = 192,
place = {United States},
year = {2000},
month = {5}
}