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This work investigates the formation and accessibility of hydrocarbon species in ZSM-5 during olefin pretreatment and their impact on the methanol-to-olefins process.

March 21, 2026The Journal of Physical Chemistry COpen Access

Olefin Pretreatment of ZSM-5: Formation of Catalytically Active and Inactive Species toward the Methanol-to-Olefins Process

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This work investigates the formation and accessibility of hydrocarbon species in ZSM-5 during olefin pretreatment and their impact on the methanol-to-olefins process.
Conducted olefin pretreatment of ZSM-5 using C6–C7 olefins under controlled temperatures.
Analyzed the composition of adsorbed hydrocarbon species formed within ZSM-5 pores.
Performed deuterium exchange experiments to assess the accessibility of hydrocarbon species for catalytic activity.
Only about 10% of adsorbed oligomers and 35% of cyclopentenyl cations were found to be accessible and catalytically active.
Despite variations in hydrocarbon pool composition, olefin-pretreated and pristine ZSM-5 showed similar product selectivity.
Oligomers converted to allylic ions rather than acting toward product selectivity were identified as a significant factor.

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Research reveals olefin pretreatment influences catalytic activity in methanol-to-olefins process, indicating selectivity effects.

Cite This Study

Maggiulli et al. (2026) studied this question.

synapsesocial.com/papers/69be38596e48c4981c678ac1 https://doi.org/10.1021/acs.jpcc.6c00132

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Olefin Pretreatment of ZSM-5: Formation of Catalytically Active and Inactive Species toward the Methanol-to-Olefins Process

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Cite This Study

Olefin Pretreatment of ZSM-5: Formation of Catalytically Active and Inactive Species toward the Methanol-to-Olefins Process

Key Points

Discussion

Implication

Cite This Study

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