VIBRATIONAL INFRARED SPECTROSCOPIC STUDIES OF 1-BUTENE SKELETON ISOMERIZATION AT THE SURFACE OF A SILICATED ALUMINA IN A MICRO PLUG FLOW REACTOR

被引:16
作者
BASINI, L
ARAGNO, A
RAFFAELLI, A
机构
[1] Snamprogetti S.p.A., 20097 San Donato Milanese, Milano
关键词
D O I
10.1021/j100154a042
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The skeletal isomerization of 1-butene to obtain 2-methylpropene is catalyzed by the interaction at high temperatures with solids having acidic properties. The nature of the solid-gas interaction is investigated through some vibrational infrared spectroscopic experiments aimed at highlighting the perturbation of the surface molecular groups and the formation of surface complexes on a silicated alumina under different conditions of pressure and temperature. The spectra recorded during the interactions lead us to propose that the catalytic isomerization occurs through a temperature-dependent proton-transfer equilibrium between an OH surface group and an H-bonded internal olefin.
引用
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页码:211 / 218
页数:8
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