Olefin as an Intermediate in n-Butane Isomerization on Sulfated Zirconia. An in situ 13C MAS NMR Study of n-Octene-1 Conversion
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Catalysis Letters
ISSN: 1011-372X
, E-ISSN: 1572-879X
|
| Output data |
Year: 2002,
Volume: 78,
Number: 1-4,
Pages: 153-156
Pages count
: 4
DOI:
10.1023/A:1014933623857
|
| Tags |
13C MAS NMR, Alkanes, Cyclopentenyl cations, Isomerization, N-octene-1, Sulfated zirconia |
| Authors |
Stepanov Alexander G.
1
,
Luzgin Mikhail V.
1
,
Sidelnikov Vladimir N.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia
|
|
Funding (1)
|
1
|
Russian Foundation for Basic Research
|
99-03-32454
|
By using in situ13C MAS NMR and ex situ GC-MS, the analysis of hydrocarbon products formed from n-octene-1 adsorbed on sulfated zirconia catalyst (SZ) has been performed. It is shown that a mixture of alkanes and stable alkyl substituted cyclopentenyl cations (CPC) is formed as the basic reaction products. Formation of both alkanes and CPC from n-octene-1, a precursor of C8+ cation, the key intermediate in n-butane isomerization via a “bimolecular pathway”, implies that formation of the isomerized alkane occurs by a complex process of “conjunct polymerization”, rather than isomerization itself. CPC deposited on the SZ surface can be in charge of the catalyst deactivation.