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Composition and Preparation Method of Rhenium- and Tungsten-Containing Porous Ceramic Converters Influence on the Cumene Dehydrogenation to α-Methylstyrene Process Specific Features
https://orcid.org/https://orcid.org/0000-0002-8550-7921
https://orcid.org/https://orcid.org/0000-0002-6069-6148
https://orcid.org/https://orcid.org/0000-0003-4548-6051
https://orcid.org/https://orcid.org/0000-0002-3601-2498
https://orcid.org/https://orcid.org/0000-0002-8932-7709
https://orcid.org/https://orcid.org/0000-0001-6147-5753
https://orcid.org/https://orcid.org/0000-0001-9877-9902
https://orcid.org/https://orcid.org/0000-0002-8253-2945
The latest research results on the specific features of the process of cumene dehydrogenation to α-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°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.
Composition and Preparation Method of Rhenium- and Tungsten-Containing Porous Ceramic Converters Influence on the Cumene Dehydrogenation to α-Methylstyrene Process Specific Features
https://orcid.org/https://orcid.org/0000-0002-8550-7921
https://orcid.org/https://orcid.org/0000-0002-6069-6148
https://orcid.org/https://orcid.org/0000-0003-4548-6051
https://orcid.org/https://orcid.org/0000-0002-3601-2498
https://orcid.org/https://orcid.org/0000-0002-8932-7709
https://orcid.org/https://orcid.org/0000-0001-6147-5753
https://orcid.org/https://orcid.org/0000-0001-9877-9902
https://orcid.org/https://orcid.org/0000-0002-8253-2945
The latest research results on the specific features of the process of cumene dehydrogenation to α-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°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.
Composition and Preparation Method of Rhenium- and Tungsten-Containing Porous Ceramic Converters Influence on the Cumene Dehydrogenation to α-Methylstyrene Process Specific Features
https://orcid.org/https://orcid.org/0000-0002-8550-7921
https://orcid.org/https://orcid.org/0000-0002-6069-6148
https://orcid.org/https://orcid.org/0000-0003-4548-6051
https://orcid.org/https://orcid.org/0000-0002-3601-2498
https://orcid.org/https://orcid.org/0000-0002-8932-7709
https://orcid.org/https://orcid.org/0000-0001-6147-5753
https://orcid.org/https://orcid.org/0000-0001-9877-9902
https://orcid.org/https://orcid.org/0000-0002-8253-2945
The latest research results on the specific features of the process of cumene dehydrogenation to α-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°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.
Composition and Preparation Method of Rhenium- and Tungsten-Containing Porous Ceramic Converters Influence on the Cumene Dehydrogenation to α-Methylstyrene Process Specific Features
Pet. Chem.
Fedotov, A. S. (author) / Bagdatov, R. A. (author) / Grachev, D. Yu. (author) / Uvarov, V. I. (author) / Kapustin, R. D. (author) / Alymov, M. I. (author) / Paul, S. (author) / Tsodikov, M. V. (author)
Petroleum Chemistry ; 62 ; 660-671
2022-06-01
12 pages
Article (Journal)
Electronic Resource
English
Dehydrogenation of Cumene to α-Methylstyrene over Tungsten-Containing Porous Ceramic Converters
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