Article

A study on the dimerization of 1-butene over Beta zeolite

Graduate School of Materials Science FIN-20500 Åbo/Turku Finland
Topics in Catalysis (impact factor: 2.62). 01/2007; 45(1):187-190. DOI:10.1007/s11244-007-0263-2

ABSTRACT New restrictions on gasoline in some part of the world implies that oxygenates such as MTBE and aromatics should be replaced
by other high-octane components. The dimerization of 1-butene, which is a step in the production of “Green” gasoline, is evaluated
under liquid phase reaction conditions over acidic Beta zeolites synthesized with different synthesis time. There are substantial
differences between Beta zeolites obtained at synthesis times 96 and 240 h leading to different physico-chemical properties
and, furthermore, catalytic performances. More acidic Beta zeolites lead to higher yields to light olefins while less acidic
samples produce more oligomers, i.e. C12–C14 fraction. Interestingly, it was also observed that strong acid sites catalyze cracking reactions, while the weak ones, oligomerization.

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Keywords

acidic Beta zeolites lead
 
acidic Beta zeolites synthesized
 
aromatics
 
Beta zeolites
 
different physico-chemical properties
 
different synthesis time
 
dimerization
 
higher yields
 
liquid phase reaction conditions
 
New restrictions
 
oligomerization
 
reactions
 
strong acid sites catalyze
 
synthesis times 96