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Title: CO[sub 2]-reforming of methane over transition metals

Abstract

Catalysts based on Ni, Ru, Rh, Pd, Ir and Pt are compared for CO[sub 2]-reforming of methane by studying the equilibrium for methane decomposition, the activity for reforming, and carbon formation, as well as the selectivity for carbon formation. Replacing steam by carbon dioxide has no significant impact on the reforming mechanism. All catalysts show smaller equilibrium constants for methane decomposition than that based on graphite, the effect being largest for the noble metals. Ru and Rh show high selectivity for carbon-free operation, which can be ascribed to high reforming rates combined with low carbon formation rates. Similar high selectivity can be achieved with a sulfur-passivated nickel catalyst. 35 refs., 7 figs., 4 tabs.

Authors:
;  [1]
  1. Haldor Topseoe A/S, Lyngby (Denmark)
Publication Date:
OSTI Identifier:
5078577
Resource Type:
Journal Article
Journal Name:
Journal of Catalysis; (United States)
Additional Journal Information:
Journal Volume: 144:1; Journal ID: ISSN 0021-9517
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 03 NATURAL GAS; IRIDIUM; CATALYTIC EFFECTS; METHANE; CATALYTIC REFORMING; NICKEL; PALLADIUM; PLATINUM; RHODIUM; RUTHENIUM; ABSORPTION SPECTROSCOPY; CARBON DIOXIDE; CATALYSTS; HETEROGENEOUS CATALYSIS; ALKANES; CARBON COMPOUNDS; CARBON OXIDES; CATALYSIS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; HYDROCARBONS; METALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PLATINUM METALS; REFORMER PROCESSES; SPECTROSCOPY; TRANSITION ELEMENTS; 400201* - Chemical & Physicochemical Properties; 030400 - Natural Gas- Products & By-Products

Citation Formats

Rostrup-Nielsen, J R, and Bak Hansen, J H. CO[sub 2]-reforming of methane over transition metals. United States: N. p., 1993. Web. doi:10.1006/jcat.1993.1312.
Rostrup-Nielsen, J R, & Bak Hansen, J H. CO[sub 2]-reforming of methane over transition metals. United States. https://doi.org/10.1006/jcat.1993.1312
Rostrup-Nielsen, J R, and Bak Hansen, J H. 1993. "CO[sub 2]-reforming of methane over transition metals". United States. https://doi.org/10.1006/jcat.1993.1312.
@article{osti_5078577,
title = {CO[sub 2]-reforming of methane over transition metals},
author = {Rostrup-Nielsen, J R and Bak Hansen, J H},
abstractNote = {Catalysts based on Ni, Ru, Rh, Pd, Ir and Pt are compared for CO[sub 2]-reforming of methane by studying the equilibrium for methane decomposition, the activity for reforming, and carbon formation, as well as the selectivity for carbon formation. Replacing steam by carbon dioxide has no significant impact on the reforming mechanism. All catalysts show smaller equilibrium constants for methane decomposition than that based on graphite, the effect being largest for the noble metals. Ru and Rh show high selectivity for carbon-free operation, which can be ascribed to high reforming rates combined with low carbon formation rates. Similar high selectivity can be achieved with a sulfur-passivated nickel catalyst. 35 refs., 7 figs., 4 tabs.},
doi = {10.1006/jcat.1993.1312},
url = {https://www.osti.gov/biblio/5078577}, journal = {Journal of Catalysis; (United States)},
issn = {0021-9517},
number = ,
volume = 144:1,
place = {United States},
year = {1993},
month = {11}
}