Exploring the influence of zeolite textural properties on the production of sustainable fuels through the Fischer-Tropsch process

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-01-02 DOI:10.1016/j.apcata.2024.120095

Daniel P. Costa , Auguste Fernandes , Eduardo Falabella S.-Aguiar , Cristiana Alves , Paulo Ferreira , José C.B. Lopes , Bruno F. Machado , M. Filipa Ribeiro

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引用次数: 0

Abstract

The isolated impact of the textural properties of hierarchical zeolites on the one-step Fischer-Tropsch (FT) reaction selectivity was studied. Hierarchical ZSM-5 zeolites with different pore size distributions (PSD) and similar acid properties were successfully prepared evidenced by PXRD, ²⁷Al MAS NMR, N2 physisorption, TEM, TPD NH₃ and FTIV. Physical mixtures comprising the zeolites, Co/Al₂O₃ and Pt/Al₂O₃ were used for testing. The Mixtures containing Pt/Al₂O₃ evidenced a decrease on the olefin content of the final products. The addition of zeolite to the mixture increased the CH₄ and C_2–4 selectivity and a decrease in CO₂ selectivity. The hierarchical zeolites increased the selectivity towards liquid products and isomers while decreasing the consecutive cracking. The highest isomer content was obtained with the physical mixture containing the hierarchical zeolite with higher mesopore average size (60 nm) and narrow PSD, suggesting a correlation between the PSD and the isomer content of the final products.

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来源期刊

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.