Isomerization of n-butane by gallium-promoted sulfated zirconia supported on MCM-41
In: Green Chemistry, Jg. 4 (2002-06-19), Heft 3, S. 257-260
Online
serialPeriodical
Zugriff:
The n-butane isomerization reaction on sulfated zirconia (SZ) supported on MCM-41 mesoporous molecular sieve (SZ/MCM-41) was studied at various reaction temperatures in the presence of hydrogen. The catalytic activity was significantly improved with the addition of an appropriate amount of gallium as a promoter. The best conversion was achieved when the catalyst was promoted by 1.7 wt% gallium and calcined at 680 °C. Although the deactivation of these catalysts in the initial stage was observed the deactivated Ga-promoted SZ/MCM-41 catalysts (SZG/MCM-41) could be completely regenerated in air at 450 °C. The Pt-impregnated SZG/MCM-41 catalyst exhibited higher steady conversion compared with the Pt-free form. These halogen-free catalysts have advantages over other strong acid catalysts, in overcoming corrosion and environmental problems.
Titel: |
Isomerization of n-butane by gallium-promoted sulfated zirconia supported on MCM-41
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Autor/in / Beteiligte Person: | Wang, Wei ; Chen, Chang-Lin ; Xu, Nan-Ping ; Mou, Chung-Yuan |
Link: | |
Zeitschrift: | Green Chemistry, Jg. 4 (2002-06-19), Heft 3, S. 257-260 |
Veröffentlichung: | 2002 |
Medientyp: | serialPeriodical |
ISSN: | 1463-9262 (print) ; 1463-9270 (print) |
DOI: | 10.1039/b201361b |
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