Mathematical Model for the Industrial SMTO Reactor with a SAPO-34 Catalyst

The methanol-to-olefins (MTO) technology creates a new non-oil route to produce light olefins. This paper reports a 14-lump MTO kinetic model for SAPO-34 catalyst, combined with the hydrodynamic model for the fast fluidized bed reactor of the industrial SMTO process. Selective deactivation is consid...

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Bibliographic Details
Published in:ACS omega 2023-03, Vol.8 (10), p.9630-9643
Main Authors: Jiang, Hongbo, Yuan, Linzhi, Li, Defei, Chen, Yushi
Format: Article
Language:English
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Summary:The methanol-to-olefins (MTO) technology creates a new non-oil route to produce light olefins. This paper reports a 14-lump MTO kinetic model for SAPO-34 catalyst, combined with the hydrodynamic model for the fast fluidized bed reactor of the industrial SMTO process. Selective deactivation is considered to quantify the product selectivity and abrupt catalytic activity change. Moreover, referring to the parallel compartment (PC) model, the activity difference between the circulating spent catalyst and the regenerated catalyst is considered. The validation results with the optimized kinetic parameters showed good agreement between the calculated value and the actual value. Sensitivity analysis of the industrial SMTO process was performed. According to the results, the established mathematical model can provide guidance for industrial production operations.
ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.3c00304