碳质沉积物作为烷基苯氧脱氢催化剂的研究

IF 9.3 2区化学 Q1 CHEMISTRY, PHYSICAL Catalysis Reviews-Science and Engineering Pub Date : 1994-02-01 DOI:10.1080/01614949408013920

A. Lisovskii, C. Aharoni

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引用次数: 95

摘要

工业上生产苯乙烯和α-甲基苯乙烯的主要方法是使用混合氧化物催化剂对乙苯和异丙苯进行脱氢反应，这些反应是吸热可逆的，在高温(853-923 K)下进行，其可逆性从热力学上限制了产物的产率。通常通过在加热到973 K的蒸汽中稀释烷基苯来降低反应的分压，从而使平衡向乙烯苯的形成方向偏移。

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Carbonaceous Deposits as Catalysts for Oxydehydrogenation of Alkylbenzenes

Abstract The main industrial methods for the production of styrene and α-methylstyrene are the dehydrogenation of ethylbenzene and isopropylbenzene using mixed oxide catalysts: These reactions are endothermic and reversible, they take place at high temperatures (853–923 K), and their reversibility thermodynamically limits the yields of the products. Displacement of the equilibrium toward the formation of the vinylbenzenes is generally achieved by lowering the partial pressure of the reacting alkylbenzenes by diluting them in steam, heated to 973 K.

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来源期刊

Catalysis Reviews-Science and Engineering 化学-物理化学

CiteScore

22.30

自引率

2.80%

发文量

期刊介绍： Catalysis Reviews is dedicated to fostering interdisciplinary perspectives in catalytic science and engineering, catering to a global audience of industrial and academic researchers. This journal serves as a bridge between the realms of heterogeneous, homogeneous, and bio-catalysis, providing a crucial and critical evaluation of the current state of catalytic science and engineering. Published topics encompass advances in technology and theory, engineering and chemical aspects of catalytic reactions, reactor design, computer models, analytical tools, and statistical evaluations.