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Initiation Step and Reactive Intermediates in the Transformation of Methanol into Olefins over SAPO-18 Catalyst

✍ Scribed by Aguayo, Andrés T.; Gayubo, Ana G.; Vivanco, Raquel; Alonso, Ainhoa; Bilbao, Javier

Book ID
120059222
Publisher
American Chemical Society
Year
2005
Tongue
English
Weight
432 KB
Volume
44
Category
Article
ISSN
0888-5885

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The regeneration by coke combustion of a catalyst based on a SAPO-34 used in the transformation of methanol into ole®ns (ethene and propene) has been studied. It has been observed that coke combustion kinetics are strongly dependent on the nature of the coke (H/C ratio), which in turn is a consequen

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When methanol is converted to oleüns on a SAPO-34 catalyst between 350 and 425ÄC, there is a rapid initial formation of coke, followed by a slower rate of coke deposition. The rate of coke formation decreases with increasing temperature, and with progression through the catalyst bed. The coke comple