Reactions of 2,2-dimethylbutane on iridium: the role of surface carbonaceous layers and metal particle size

Journal Article · Sun May 01 04:00:00 EDT 1988 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(88)90067-X· OSTI ID:6961629

Vogelzang, M W; Ponec, V

The reactions of isomerization and hydrogenolysis of 2,2-dimethylbutane (neohexane) have been studied using Ir/SiO/sub 2/ catalysts with small Ir particles (approx. 1.5 nm diameter) and large particles (approx. 500 nm diameter), respectively. The selectivity of the Ir catalyst was found to be not very sensitive to the variation in particle size. The structure sensitivity detected is most probably due to a difference in the structure of the inactive layer (self-poisoning) on the Ir surface.

• Research Organization: Leiden Univ. (Netherlands)
• OSTI ID: 6961629
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 111:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKANES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
ELEMENTS
HYDROCARBONS
HYDROGENATION
IRIDIUM
ISOMERIZATION
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PLATINUM METALS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SIZE
SURFACE PROPERTIES
TRANSITION ELEMENTS