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Capture and identification of coke precursors to elucidate the deactivation route of the methanol-to-olefin process over H-SAPO-34

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Abstract

The evolution of retained species during the whole methanol-to-olefins process was revealed with the aid of GC-MS, thermogravimetric analysis (TG) and density functional theory (DFT) calculations. Precise routes for the transformation of retained methylbenzenes to methylnaphthalenes were proposed, based on the direct capture of three possible organic intermediates, to explain the catalyst deactivation procedure.

Graphical abstract: Capture and identification of coke precursors to elucidate the deactivation route of the methanol-to-olefin process over H-SAPO-34

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Article information


Submitted
03 Apr 2020
Accepted
29 May 2020
First published
02 Jun 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Capture and identification of coke precursors to elucidate the deactivation route of the methanol-to-olefin process over H-SAPO-34

B. Yu, W. Zhang, Y. Wei, X. Wu, T. Sun, B. Fan, S. Xu and Z. Liu, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC02408B

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