6533b86dfe1ef96bd12c953c
RESEARCH PRODUCT
Stabilization of ZSM-5 zeolite catalysts for steam catalytic cracking of naphtha for production of propene and ethene
Jesús MengualPablo J. MiguelAvelino Cormasubject
Steam catalytic cracking (SCC)Inorganic chemistryN-AlkanesFluid catalytic crackingcomplex mixturesCatalysisCatalysisPropenechemistry.chemical_compoundQUIMICA ORGANICAZeoliteHydrothermal stabilitiesNaphthaZSM-5 zeoliteTECNOLOGIA DEL MEDIO AMBIENTEN alkanesProcess Chemistry and Technologyfood and beveragesZeolite dealuminationZSM-5 hydrothermal stabilityhumanitiesSi/Al ratioCrackingchemistryPhosphorous stabilized zeoliteAlkenes productiondescription
In order to increase ethene and propene, naphtha steam catalytic cracking has been considered. The cracking of C 5-C 12 n-alkanes with ZSM-5 has been studied in absence and in presence of steam and the influence of the operation variables was studied. Irreversible catalyst deactivation by dealumination also occurs in the reactor when the cracking is carried out in the presence of steam. To diminish steam deactivation, the influence of zeolite Si/Al framework and a postsynthesis treatment by phosphorous have been studied and optimized. Much more stable catalyst can be achieved that result in an increase in activity without penalty for production of ethene and propene.
year | journal | country | edition | language |
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2012-04-16 |