Isomerization ofn-pentane andn-hexane on modified zeolites |
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| Authors: | T V Vasina O V Masloboishchikova E G Khelkovskaya-Sergeeva L M Kustov J Houzvicka P Zeuthen |
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| Institution: | (1) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913 Moscow, Russian Federation;(2) Haldor Topsoe A/S, DK-2800 Lyngby, Denmark |
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| Abstract: | The activity and selectivity of catalysts based on TsVM (an analog of ZSM-5), Beta, and La-H-Beta zoelites modified by Pt,
Pt−Fe, and Pt−Ga were studied in the isomerization of C5 and C6 linear alkanes. The Pt/HTsVM, Pt/H-Beta, and Pt/La-H-Beta catalysts are efficient inn-pentane isomerization, whereas the Pt/H-Beta and Pt/La-H-Beta are most active inn-hexane isomerization. Nearly equilibirum isoparaffin yield at a selectivity of at least 95–96% is reached on these catalysts
unlike other zeolite systems. The overall yield of 2,2-and 2,3-dimethylbutanes is 22 wt.%. The hexane isomers are not formed
over the Pt/HTsVM catalyst due to the molecular-sieve properties of this type of zcolites.
Published inIzvestiya Akademii Nauk. Seriya Khimicheskaya No. 11, pp. 1866–1869, November, 2000. |
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| Keywords: | zcolites modified zcolites n-pentane n-hexane isopentane isohexanes isomerization |
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