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Advances in Catalyst Design for the Conversion of Methane to Aromatics: A Critical Review
Catalysis Surveys from Asia ( IF 3 ) Pub Date : 2019-03-04 , DOI: 10.1007/s10563-018-9262-5
Ahmad Galadima , Oki Muraza

The catalytic methane aromatization (CMA) via the non-oxidative approach is increasingly becoming an interesting process for natural gas, shale gas and biogas valorization. However, the design of catalytic materials that could produce very high methane conversion and aromatics selectivity at affordable stability is still difficult. We have carefully documented herein a comprehensive literature survey on the advances in different catalysts designed, characterized and evaluated for the CMA reaction in the recent times. Details on metal-modified zeolite systems including the active sites identification, role of different metals and their loadings, reaction mechanisms and influence of synthetic and catalytic parameters were substantially discussed. The scope was extended to include zeotypes, oxides, un-modified Mo-based compounds and associated catalysts recently evaluated. There are indications that the powdered GaN material is currently been considered as a CMA catalyst. Therefore, relevant studies were carefully surveyed and discussed. In all cases, parameters varied for ensuring conversion and selectivity control were simultaneously highlighted. The paper identified new research paths based on the areas partly explored for further investigations.

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中文翻译:

甲烷转化为芳烃的催化剂设计进展:综述

通过非氧化方法的催化甲烷芳构化(CMA)越来越成为天然气,页岩气和沼气增值的有趣方法。然而,在负担得起的稳定性下能够产生很高的甲烷转化率和芳烃选择性的催化材料的设计仍然是困难的。我们已在本文中仔细记录了有关最近针对CMA反应设计,表征和评估的不同催化剂进展的全面文献调查。讨论了有关金属改性沸石体系的详细信息,包括活性部位的鉴定,不同金属的作用及其负载量,反应机理以及合成和催化参数的影响。范围已扩展到包括分子型,氧化物,最近评估了未改性的Mo基化合物和相关的催化剂。有迹象表明粉末状的GaN材料目前被认为是CMA催化剂。因此,对相关研究进行了仔细的调查和讨论。在所有情况下,均会突出显示为确保转化和选择性控制而变化的参数。本文根据部分探索以供进一步研究的领域,确定了新的研究路径。

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更新日期:2019-03-04
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