The conversion of propene and ethene over AlPO sub 4 -11
- Univ. of Toronto, Ontario (Canada)
Bhatia and Phillips have recently reported the conversion of 1-butene to C{sub 6}-C{sub 8} aromatics over the aluminophosphate molecular sieve AlPO{sub 4}-11 in the temperature range 673-873 K. A mechanism was proposed in which dehydrogenation of 1-butene was followed by dimerization of the resulting 1,3-butadiene; the dimer could either cyclize to an aromatic or crack to lighter products. The conversion to aromatics was much less than that observed over H-ZSM-5 and was attributed to the known weak acidity of AlPO{sub 4}-11. The absence of C{sub 9}{sup +} aromatics in the product supported the proposed mechanism; steric hindrance in the elliptical pores (0.67 {times} 0.44 nm) prevented butene trimers from forming. To further the understanding of olefin reactions over AlPO{sub 4}-11, the conversion of ethene and propene has been studied.
- OSTI ID:
- 6573446
- Journal Information:
- Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 113:1; ISSN 0021-9517; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ADSORBENTS
ALKENES
ALUMINIUM COMPOUNDS
ALUMINIUM PHOSPHATES
AROMATICS
BUTADIENE
BUTENES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DEHYDROGENATION
DIENES
DIMERIZATION
ETHYLENE
HYDROCARBONS
KINETICS
MOLECULAR SIEVES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
POLYENES
POLYMERIZATION
PROPYLENE
REACTION KINETICS
SYNTHESIS