Composition and Preparation Method of Rhenium- and Tungsten-Containing Porous Ceramic Converters Influence on the Cumene Dehydrogenation to α-Methylstyrene Process Specific Features

被引：3

作者：

Fedotov, A. S. ^{[1
]}

Bagdatov, R. A. ^{[1
]}

Grachev, D. Yu. ^{[1
]}

Uvarov, V. I. ^{[2
]}

Kapustin, R. D. ^{[2
]}

Alymov, M. I. ^{[2
]}

Paul, S. ^{[3
]}

Tsodikov, M. V. ^{[1
]}

机构：

[1] Russian Acad Sci, AV Topchiev Inst Petrochem Synth, Moscow 119991, Russia

[2] Russian Acad Sci, Merzhanov Inst Struct Macrokinet & Mat Sci, Chernogolovka 142432, Russia

[3] Univ Artois, Univ Lille, UCCS Unite Catalyse & Chim Solide, Cent Lille,ENSCL,UMR 8181, F-59000 Lille, France

来源：

PETROLEUM CHEMISTRY | 2022年 / 62卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

heterogeneous catalysis; porous catalysts; rhenium; tungsten; self-propagating high-temperature synthesis; dehydrogenation; cumene; monomers; styrene; alpha-methylstyrene; REDUCTION; STABILITY; OXIDE; DRY;

D O I：

10.1134/S0965544122040090

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The latest research results on the specific features of the process of cumene dehydrogenation to alpha-methylstyrene (AMS) on the porous ceramic catalytic converters were presented. The influence of the method of formation of the mono- and bimetallic rhenium- and tungsten-based components on the activity and selectivity of the synthesized converters was evaluated. It was found that the monometallic tungsten-containing converter obtained by combining self-propagating high-temperature synthesis (SHS) with the sol-gel process has the optimal composition. The experiments showed that, for this converter, the temperature range of effective operation is 550-600 degrees C. In this range the space-time yield of AMS reached 14% at a maximum productivity of 20.57 g h(-1) dm(-3). The degree of carburization of the sample after 6 h of the experiment did not exceed 5 wt %, indicating its high resistance against coking.

引用

页码：660 / 671

页数：12

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