3D-printed monolithic ZSM-5@nano-ZSM-5: Hierarchical core-shell structured catalysts for enhanced cracking of polyethylene-derived pyrolysis oils

Wang, Ruoyu; Gong, Yixuan; Wang, Peng; Zheng, Aiguo; Wang, Zhiqiang; Sha, Yuchen; Jiang, Qiuqiao; Xin, Mudi; Cao, Dongxue; Song, Haitao; Lin, Wei

doi:10.1016/j.addma.2023.103890

Additive Manufacturing

2024

DOI: 10.1016/j.addma.2023.103890

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3D-printed monolithic ZSM-5@nano-ZSM-5: Hierarchical core-shell structured catalysts for enhanced cracking of polyethylene-derived pyrolysis oils

Ruoyu Wang,

Yixuan Gong,

Peng Wang

et al.

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2024

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Cited by 2 publications

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Tailoring and Visualizing Macropores of the Zeolite Monolith to Reveal the Coke Resistance Performance for Bio-oil Hydrodeoxygenation

Gan,

Jiang,

Jin

et al. 2024

ACS Catal.

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Mass transport in conventional microporous zeolite catalysts can be enhanced by introducing secondary mesopores during hydrodeoxygenation (HDO). However, the impact of the macropore architecture with intrinsic mass transfer advantages over mesopores on HDO performance remains elusive. In this study, a macroporous zeolite monolith catalyst without a template and binder was synthesized using a crystal space-confined growth method. This catalyst exhibited a 1.3 times higher macropore volume (0.566 m 3 /g) than a conventional zeolite catalyst, while the microporous structure was similar. Moreover, the high degree macropore connectivity was directly visualized and quantified with an advanced nanocomputed tomography technique. The macroporous catalyst achieved a higher guaiacol conversion rate of 93% and better coke resistance (3.2 wt % coke) than the conventional zeolite catalyst, which showed a 90% guaiacol conversion rate and 5.6 wt % coke. This improvement was primarily due to faster diffusion rates and an increased number of acid sites in the macropores.

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Tailoring and Visualizing Macropores of the Zeolite Monolith to Reveal the Coke Resistance Performance for Bio-oil Hydrodeoxygenation

Gan,

Jiang,

Jin

et al. 2024

ACS Catal.

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Application of 3D printing technology in micro chemical engineering

Zhang,

Li,

Zhang

et al. 2024

Sci. Sin.-Chim

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3D-printed monolithic ZSM-5@nano-ZSM-5: Hierarchical core-shell structured catalysts for enhanced cracking of polyethylene-derived pyrolysis oils

Cited by 2 publications

References 56 publications

Tailoring and Visualizing Macropores of the Zeolite Monolith to Reveal the Coke Resistance Performance for Bio-oil Hydrodeoxygenation

Tailoring and Visualizing Macropores of the Zeolite Monolith to Reveal the Coke Resistance Performance for Bio-oil Hydrodeoxygenation

Application of 3D printing technology in micro chemical engineering

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