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A Newly Designed Core-Shell-Like Zeolite Capsule Catalyst for Synthesis of Light Olefins from Syngas via Fischer–Tropsch Synthesis Reaction

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Abstract

Improving the selectivity of light olefins remains a longstanding challenge in Fischer–Tropsch to light olefins reaction (FTO). Toward this objective, we designed and prepared a newly catalyst with core-shell-like structure by using a simple and facile method named physically adhesive method. This core-shell-like catalyst Fe@SAPO-34 was characterized by XRD, SEM, EDS, N2 sorption and NH3-TPD respectively. The characterization results indicated that the SAPO-34 zeolite shell was comparatively uniform, homogeneous and defect-free, and it encapsulated the Fe catalyst entirely. Fischer–Tropsch synthesis reaction of syngas to light olefins was selected to test the catalytic performance of the zeolite capsule catalyst. In comparison with the simple mixture catalyst Fe/SAPO-34 and bare Fe catalyst, the newly Fe@SAPO-34 catalyst has demonstrated ability of the highest selectivity of light olefins 52.6% and O/P ratio 6.4. The SAPO-34 zeolite shell acted an important role for the improvement of light olefins selectivity.

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Correspondence to Mingsheng Luo.

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Di, Z., Zhao, T., Feng, X. et al. A Newly Designed Core-Shell-Like Zeolite Capsule Catalyst for Synthesis of Light Olefins from Syngas via Fischer–Tropsch Synthesis Reaction. Catal Lett 149, 441–448 (2019). https://doi.org/10.1007/s10562-018-2624-9

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  • DOI: https://doi.org/10.1007/s10562-018-2624-9

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