Study of chemisorption and hydrogenation of 1-butene on platinum by temperature-programmed desorption

Journal Article · Tue May 01 04:00:00 EDT 1984 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(84)90177-5· OSTI ID:6726902

Tsuchiya, S; Yoshioka, N

The temperature-programmed desorption (TPD) chromatograms of 1-butene from platinum black comprised four peaks, A, B, C, and D, with peak maxima at about 265, 390, 580, and higher than 770 K, respectively. Peak A was identified to be 1-butene with a trace amount of n-butane. Peaks B and C were the mixtures of 1-butene and propylene. Peak D was methane. The methane and propylene were formed from chemisorbed 1-butene by decomposition as the temperature was raised during the subsequent TPD. The reactivities of various types of chemisorbed hydrogen previously detected by TPD were also investigated with regard to the hydrogenation of 1-butene. Two types of chemisorbed hydrogen, presumed to be present on the surface in the form of hydrogen atoms chemisorbed on top of platinum atoms and in the bridge form of molecular hydrogen, were found to react with 1-butene.

• Research Organization: Yamaguchi Univ., Tokiwadai, Japan
• OSTI ID: 6726902
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 87:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
ALKANES
ALKENES
BUTENES
CHEMICAL REACTIONS
CHEMISORPTION
DESORPTION
ELEMENTS
HYDROCARBONS
HYDROGENATION
METALS
METHANE
ORGANIC COMPOUNDS
PLATINUM
PLATINUM METALS
PROPYLENE
SEPARATION PROCESSES
SORPTION
TRANSITION ELEMENTS