G. Seo et al., SKELETAL ISOMERIZATION OF 1-BUTENE OVER FERRIERITE AND ZSM-5 ZEOLITES- INFLUENCE OF ZEOLITE ACIDITY, Catalysis letters, 36(3-4), 1996, pp. 249-253
Three ferrierite (FER) and five ZSM-5 (MFI) zeolites with SiO2/Al2O3 r
atio ranging from 27 to 2000 are tested as catalysts for the skeletal
isomerization of 1-butene at 350-450 degrees C and atmospheric total p
ressure in order to study the influence of acidity and pore structure
of zeolite on conversion and selectivity. The catalytic and NH3 temper
ature-programmed desorption results from FER and MFI catalysts with th
e same SiO2/Al2O3 ratio reveal that the pore structure of FER zeolite
rather than its acidity may play an important role in achieving high s
electivity for the skeletal isomerization of 1-butene to isobutene.