High propylene selectivity in methanol conversion over metal (Sm, Y, and Gd) modified HZSM-5 catalysts in the methanol to propylene process

Khani, Yasin; Pyo, Sumin; Jeong, Kwang-Eun; Kim, Chul-Ung; Khan, Moonis Ali; Jeon, Byong-Hun; Lin, Kun-Yi Andrew; Choi, Siyoung Q.; Park, Young-Kwon

doi:10.1016/j.cattod.2023.114355

Catalysis Today

2024

DOI: 10.1016/j.cattod.2023.114355

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High propylene selectivity in methanol conversion over metal (Sm, Y, and Gd) modified HZSM-5 catalysts in the methanol to propylene process

Yasin Khani,

Sumin Pyo,

Kwang-Eun Jeong

et al.

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Cited by 3 publications

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Template‐Free ZSM‐5 Synthesis Using Bio‐Sourced Waste Materials

Schneider,

Schmitz,

Gomes Flores

et al. 2024

Eur J Inorg Chem

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Hydrochars synthesized from lignocellulosic waste (rice husk and exhausted black wattle bark) through hydrothermal carbonization were used as pore‐forming agents in template‐free ZSM‐5 zeolites. The influence of the amount of hydrochar added to the zeolite synthesis and the nature of the hydrochar in the zeolite characteristics and catalytic performance were evaluated. It was observed that the hydrochar had little influence on the textural characteristics and Si/Al ratio of the zeolites. However, the hydrochar was able to enhance the number of Brønsted acid sites in the zeolite and led to different ZSM‐5 crystal morphologies (french‐fries and twinned crystals). The latter zeolites exhibited a higher cracking activity of n‐hexane, favoring the formation of light olefins, due to the presence of Brønsted sites and suitable shape selectivity. In contrast, they exhibited a lower conversion of methanol into hydrocarbons (MTH), favoring the formation of dimethylether due to rapid deactivation. The hydrochars acted therefore, in the synthesis of template‐free ZSM‐5 zeolite, as a mean to both raise the acidity and control the aggregation of the zeolite crystals.

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Template‐Free ZSM‐5 Synthesis Using Bio‐Sourced Waste Materials

Schneider,

Schmitz,

Gomes Flores

et al. 2024

Eur J Inorg Chem

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Facile synthesis of rodlike ZSM-5 zeolite microspheres and catalytic performance in methanol to propylene reaction

Chen,

Li,

et al. 2024

J Porous Mater

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Toward sustainable propylene: A comparison of current and future production pathways

Shirzad,

Kantor

2025

Renewable and Sustainable Energy Transition

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High propylene selectivity in methanol conversion over metal (Sm, Y, and Gd) modified HZSM-5 catalysts in the methanol to propylene process

Cited by 3 publications

References 54 publications

Template‐Free ZSM‐5 Synthesis Using Bio‐Sourced Waste Materials

Template‐Free ZSM‐5 Synthesis Using Bio‐Sourced Waste Materials

Facile synthesis of rodlike ZSM-5 zeolite microspheres and catalytic performance in methanol to propylene reaction

Toward sustainable propylene: A comparison of current and future production pathways

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