Hydrogenolysis of 2,3-dimethylbutane on supported ruthenium, nickel, cobalt, and iron

Journal Article · Sat Jun 30 04:00:00 EDT 1979 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(79)90263-X· OSTI ID:6873590

Machiels, C J; Anderson, R B

Hydrogenolysis of 2,3-dimethylbutane on supported ruthenium, nickel, cobalt, and iron was studied with the same catalysts as used for the 2,3-dimethylbutane hydrogenolysis with ruthenium on alumina, nickel and nickel/magnesia on silicon carbide, cobalt/magnesia on silicon carbide, and iron/magnesia on silica. The catalysts deactivated too rapidly to attempt kinetic experiments, and they could be regenerated by treatment with hydrogen at a temperature 10/sup 0/-20/sup 0/C above the deactivation temperature. The selectivities were not affected by the deactivation. A reaction network was developed on the assumptions that adsorption is reversible splitting steps and that carbon-carbon bond splitting occurs sequentially and irreversibly. Selectivity equations were derived from the reaction network and the selectivity data fitted to the equations. The product distribution shifted towards smaller products in the sequence ruthenium, nickel, cobalt, iron, with the iron catalyst having very low activity and giving almost entirely methane; more small products were obtained on unpromoted than on magnesium-promoted nickel.

• Research Organization: McMaster Univ.
• OSTI ID: 6873590
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 58:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400300 -- Organic Chemistry-- (-1987)
ALKANES
BENCH-SCALE EXPERIMENTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COBALT
DATA
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
IRON
METALS
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
PLATINUM METALS
RUTHENIUM
TRANSITION ELEMENTS