Hydrodeoxygenation of Vapor Anisole over Nickel/Cobalt and Alumina/Zeolite Supported Catalysts

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Surveys from Asia Pub Date : 2023-10-04 DOI:10.1007/s10563-023-09409-8

Ahmad Yaghi, Labeeb Ali, Toyin Shittu, Mohamed S. Kuttiyathil, Abbas Khaleel, Mohammednoor Altarawneh

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引用次数: 0

Abstract

Anisole (methoxybenzene) often serves as a potent biomass model compound in hydrodeoxygenation (HDO) reactions with the primary aim to underpin conditions and operations that facilitate conversion of bio-oil into non-oxygenated fuel. However, the majority of studies in literature has focused on its HDO in a solvent environment under excessive conditions of high hydrogen flow rate and elevated pressures. Herein, we investigate HDO of an evaporated stream anisole on a continues flow reactor over four combination of Ni/Co catalysts supported on Zeolite or Al₂O₃. Catalysts were characterized by various methods which span XRD, SEM-EDS and TPR. The reaction was carried out between 300–600 °C. The highest conversion at 87% was acquired using the Ni–Co/Zeolite catalyst (87%) while producing high yield of phenols and cresols. Synergistic effects brought by the incorporation of Co in the lattice of the catalyst has been discussed. Overall, we obtained a viable HDO path for this biomass model compound using combination of different supported catalysts at moderate operational conditions (relatively intermediate temperatures, ambient pressure, and low H₂/Feed ratio).

Graphical Abstract

Abstract Image

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气态苯甲醚在镍/钴和氧化铝/沸石载体催化剂上的加氢脱氧反应

苯甲醚（甲氧基苯）通常是加氢脱氧（HDO）反应中一种有效的生物质模型化合物，其主要目的是支持将生物油转化为非加氢燃料的条件和操作。然而，文献中的大多数研究都集中在高氢气流速和高压条件下的溶剂环境中的 HDO。在此，我们研究了蒸发流苯甲醚在持续流动反应器中通过沸石或 Al2O3 上支撑的四种 Ni/Co 催化剂组合进行 HDO 的情况。催化剂的表征方法多种多样，包括 XRD、SEM-EDS 和 TPR。反应在 300-600 °C 之间进行。镍钴/沸石催化剂的转化率最高，达到 87%，同时还产生了大量苯酚和甲酚。我们还讨论了催化剂晶格中加入 Co 带来的协同效应。总之，我们在中等操作条件（相对中等的温度、环境压力和较低的 H2/进料比）下使用不同的支撑催化剂组合，为这种生物质模型化合物获得了可行的 HDO 途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Catalysis Surveys from Asia 化学-物理化学

CiteScore

4.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.