Enhanced stability in the methanol-to-olefins process shown by SAPO-34 catalysts synthesized in biphasic medium

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 2013 English Publisher:Elsevier BVJournal:Catalysis Today, volume 215, pages 208-215 (issn: 0920-5861,

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Authors: Álvaro-Muñoz, Teresa; Márquez Álvarez, Carlos; Sastre, Enrique;

doi: 10.1016/j.cattod.2013.03.015

handle: 10261/182113

Enhanced stability in the methanol-to-olefins process shown by SAPO-34 catalysts synthesized in biphasic medium

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Abstract

SAPO-34 molecular sieves have been synthesized using two-liquid phase system (water/hexanol) in presence of hexadecyltrimethylammonium bromide (CTAB) or hexadecylamine (HA) as surfactant agents. This synthesis method causes higher silicon incorporation as well as greater diversification of the silicon distribution in the SAPO-34 network and decreases catalyst deactivation in the methanol-to-olefins process.

We are thankful for the financial support of the Spanish Ministry of Science and Innovation, projects MAT2009-13569 and MAT2012-31127. TAM acknowledges CSIC for a PhD grant.

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Keywords

SAPO-34, Biphasic media, Cationic surfactants, Methanol-to-olefins

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