Surface and bulk analysis of a deactivated Raney nickel methanation catalyst

Journal Article · Fri Apr 01 04:00:00 EST 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(83)90249-X· OSTI ID:6087867

Kelley, R D; Candela, G A; Madey, T E; Newbury, D E; Schehl, R R

Researchers examined a Raney nickel methanation catalyst in a hot gas recycle (HGR) bench-scale reactor (used for catalyst lifetime testing); they applied a wide range of modern analytical techniques sensitive to both surface and bulk chemical properties of the catalyst. The purpose of this work was to explore the reasons for the premature failure of the catalyst in pilot-plant lifetime tests. The results indicate that in spite of significant catalyst deactivation, only low levels of carbon (a small fraction of a surface monolayer) are formed on the catalyst surface. The growth of nickel crystallites and the subsequent decrease in active catalyst surface area appeared to be the primary cause of catalyst deactivation in this lifetime test.

• Research Organization: National Bureau of Standards, Washington, DC
• OSTI ID: 6087867
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 80; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
CATALYSTS
CHEMICAL REACTIONS
DEACTIVATION
ELEMENTS
FAILURES
HYDROCARBONS
LIFETIME
METALS
METHANATION
METHANE
NICKEL
ORGANIC COMPOUNDS
PRODUCTION
TRANSITION ELEMENTS