Progress and prospects in catalytic ethane aromatization
Progress and prospects in catalytic ethane aromatization
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DOI：
10.1039/c7cy01878a
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发表时间：
2018-03
影响因子：
5
通讯作者：
Y. Xiang;W. Hui;Jihong Cheng;John C. Matsubu
中科院分区：
文献类型：
--
作者：
Y. Xiang;W. Hui;Jihong Cheng;John C. Matsubu
乙烷是天然气的第二大成分，直接转化为更高价值的石化原料已经研究了近50年，但最近的页岩气革命使其变得越来越有利可图。虽然蒸汽裂解一直是乙烷直接转化的核心，但催化驱动的工艺似乎具有相当大的应用潜力，可用于从乙烷大规模生产不饱和烃类，例如乙烯和芳烃。本文旨在解决国家的最先进的知识，相关的催化剂配方和它们的性能在乙烷直接转化为芳烃，主要是苯，甲苯，和二甲苯。这需要全面探索工业参与者的早期专利以及该领域的科学论文，重点关注沸石酸性和金属功能如何影响催化活性，选择性和稳定性。综述的结论与直接催化乙烷转化的一般观点。
The direct transformation of ethane, the second largest component of natural gas, to higher-valued petrochemical feedstocks has been investigated for nearly 50 years, yet the recent shale gas revolution has caused it to become increasingly lucrative. While steam cracking has been central in direct ethane conversion, catalytically-driven processes appear to have considerable potential for application to the large-scale production of unsaturated hydrocarbons, such as ethylene and aromatics, from ethane. The present paper aims to address state-of-the-art knowledge of the relevant catalyst formulations and their performances in the direct conversion of ethane into aromatics hydrocarbons, mainly benzene, toluene, and xylene. This entails a comprehensive exploration of early patents from the industrial players as well as scientific papers in this field, focusing on how zeolite acidity and metal function affect catalytic activity, selectivity and stability. The review is concluded with a general perspective on directly-catalyzed ethane conversion.