Abstract
The catalytic behaviors of FER and MFI zeolites in the skeletal isomerization of 1-butene were studied. FER zeolite showed the exceptional selectivity to isobutene comparing to MFI zeolite, while the conversion was low. A molecular modelling study indicated that 1-butene molecules adsorbed on FER zeolite were mainly located at the channel intersection, they were located closely at the intersection and channel on MFI zeolite. The distant adsorption of 1-butene in the FER pore induced the exceptional selectivity to the skeletal isomerization due to the suppression of the oligomer formation which lowered the selectivity to isobutene by cracking into various hydrocarbons.
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