Effect of the amount and type of active metal and its impregnation sequence on bio-fuel production

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL Applied Catalysis A: General Pub Date : 2024-06-18 DOI:10.1016/j.apcata.2024.119850

Merve Celik Ozcan, Pinar Degirmencioglu, Emine Ekinci, Birce Pekmezci Karaman, Kirali Murtezaoglu, Nuray Oktar

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Abstract

This study aims to investigate biofuel production from biomass-derived bio-oil and examine the impact of selecting different active metals, their quantities, and synthesis procedures on biofuel selectivity. For this purpose, alumina-supported catalysts containing Zr, Co, and W were prepared using the wet impregnation method. Some physical and chemical properties of the synthesized catalysts were determined through XRD, BET, SEM/EDS, ICP-MS, TGA-DTA, and DRIFTS analysis. The activity test studies revealed that the 5Co-10Zr@MA catalyst, prepared by co-impregnation, exhibited the highest bio-oil conversion (95 %) and the highest iso-paraffin selectivity (93 %). XRD analysis indicated that this catalyst possess the CoAl₂O₄ structure, indicating the formation of an alloy between alumina and cobalt, thereby enhancing catalytic activity. The reusability tests showed that the 5Co-10Zr@MA catalyst maintained its activity over a time of 3 h. Consequently, the utilization of mesoporous alumina-supported bimetallic catalysts has proven to be successful in the production of biofuels, achieving high conversion and selectivity.

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活性金属的数量和类型及其浸渍顺序对生物燃料生产的影响

本研究旨在调查生物质衍生生物油生产生物燃料的情况，并研究选择不同活性金属、其数量和合成程序对生物燃料选择性的影响。为此，采用湿浸渍法制备了含 Zr、Co 和 W 的氧化铝支撑催化剂。通过 XRD、BET、SEM/EDS、ICP-MS、TGA-DTA 和 DRIFTS 分析确定了合成催化剂的一些物理和化学特性。活性测试研究表明，通过共浸渍法制备的 5Co-10Zr@MA 催化剂具有最高的生物油转化率（95%）和最高的异链烷烃选择性（93%）。XRD 分析表明，该催化剂具有 CoAl2O4 结构，表明氧化铝和钴形成了合金，从而提高了催化活性。重复使用性测试表明，5Co-10Zr@MA 催化剂在 3 小时内仍能保持活性。因此，利用介孔氧化铝支撑的双金属催化剂成功地生产出了生物燃料，实现了高转化率和高选择性。

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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.