正辛烷在金属氧化物催化剂上的气相氧化脱氢反应：综述

IF 3.8 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysts Pub Date : 2024-01-25 DOI:10.3390/catal14020100

Pinkie Ntola, Mzamo L. Shozi

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引用次数: 0

摘要

烷烃的氧化脱氢（ODH）是一种重要的工艺，特别是在石化工业中，通过脱氢形成不饱和化合物。文献中对较轻烷烃（C3-C6）的 ODH 有大量报道，虽然也有几篇关于正辛烷（C8）ODH 的报道，但还没有关于文献中重要发现的综述。本综述讨论在高温（300-550 °C）条件下发生的正辛烷气相 ODH。此外，还简要讨论了正辛烷 ODH 的发生机理。此外，还讨论了氧化剂（主要是 O2 和 CO2）和催化剂（支撑和非支撑金属氧化物），以及这些物质和温度对生成物类型及其各种分布的影响。此外，本综述还探讨了催化剂的酸碱和氧化还原特性，以及它们如何影响产物的形成。此外，还强调了 ODH 工艺面临的一些挑战和前景。

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Gas-Phase Oxidative Dehydrogenation of n-Octane over Metal Oxide Catalysts: A Review

The oxidative dehydrogenation (ODH) of alkanes, whereby hydrogen is removed to form unsaturated compounds, is an important process, particularly in the petrochemical industry. The ODH of lighter alkanes (C3–C6) is well-reported in the literature, and while there are several reports on the ODH of n-octane (C8), there is no reported review of the important findings in the literature. This review discusses the gas-phase ODH of n-octane occurring at high temperatures (300–550 °C). The mechanisms via which the n-octane ODH of occurs are also briefly discussed. The oxidants (mainly O2 and CO2) and catalysts (supported and unsupported metal oxides) are discussed as well as the effect of these and the temperature on the type of products formed and their various distributions. Furthermore, the review looks at the acid–base and redox properties of the catalysts and how they affect product formation. Some challenges as well as perspectives of the ODH process are also highlighted.

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来源期刊

Catalysts CHEMISTRY, PHYSICAL-

CiteScore

6.80

自引率

7.70%

发文量

1330

审稿时长

3 months

期刊介绍： Catalysts (ISSN 2073-4344) is an international open access journal of catalysts and catalyzed reactions. Catalysts publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.