Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide: Fid-Bau Portal

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Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide

Melnikov, D. P. / Smirnova, E. M. / Reshetina, M. V. / Glotov, A. P. / Novikov, A. A. / Gushchin, P. A. / Wang, H. Q. / Vinokurov, V. A.

The present study investigates a series of gallium-based catalysts supported on natural and composite aluminosilicate mesoporous supports in the CO₂-assisted oxidative dehydrogenation of propane. The catalyst supports were prepared by mixing a functional material with a boehmite binder, the functional materials being derived from natural halloysite nanotubes (HNTs). Three different supports were used: pristine HNTs; HNTs with MCM-41 synthesized around halloysite; and HNTs with MCM-41 synthesized inside the halloysite lumen. The CO₂-assisted oxidative propane dehydrogenation was tested in the range of 550–700°C at a CO₂/C₃H₈ molar ratio of 2.0. All the catalysts showed comparable propane conversion (from 10–13% to 70–80%) and propylene selectivity (from 80–84 to 30–32%). The highest propylene space-time yield (6.5 mol kg_cat^–1 h^–1) was observed for the Ga/HNT catalyst at 650°C.

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Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide

Melnikov, D. P. / Smirnova, E. M. / Reshetina, M. V. / Glotov, A. P. / Novikov, A. A. / Gushchin, P. A. / Wang, H. Q. / Vinokurov, V. A.

The present study investigates a series of gallium-based catalysts supported on natural and composite aluminosilicate mesoporous supports in the CO₂-assisted oxidative dehydrogenation of propane. The catalyst supports were prepared by mixing a functional material with a boehmite binder, the functional materials being derived from natural halloysite nanotubes (HNTs). Three different supports were used: pristine HNTs; HNTs with MCM-41 synthesized around halloysite; and HNTs with MCM-41 synthesized inside the halloysite lumen. The CO₂-assisted oxidative propane dehydrogenation was tested in the range of 550–700°C at a CO₂/C₃H₈ molar ratio of 2.0. All the catalysts showed comparable propane conversion (from 10–13% to 70–80%) and propylene selectivity (from 80–84 to 30–32%). The highest propylene space-time yield (6.5 mol kg_cat^–1 h^–1) was observed for the Ga/HNT catalyst at 650°C.

Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide

Melnikov, D. P. / Smirnova, E. M. / Reshetina, M. V. / Glotov, A. P. / Novikov, A. A. / Gushchin, P. A. / Wang, H. Q. / Vinokurov, V. A.

The present study investigates a series of gallium-based catalysts supported on natural and composite aluminosilicate mesoporous supports in the CO₂-assisted oxidative dehydrogenation of propane. The catalyst supports were prepared by mixing a functional material with a boehmite binder, the functional materials being derived from natural halloysite nanotubes (HNTs). Three different supports were used: pristine HNTs; HNTs with MCM-41 synthesized around halloysite; and HNTs with MCM-41 synthesized inside the halloysite lumen. The CO₂-assisted oxidative propane dehydrogenation was tested in the range of 550–700°C at a CO₂/C₃H₈ molar ratio of 2.0. All the catalysts showed comparable propane conversion (from 10–13% to 70–80%) and propylene selectivity (from 80–84 to 30–32%). The highest propylene space-time yield (6.5 mol kg_cat^–1 h^–1) was observed for the Ga/HNT catalyst at 650°C.

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Titel:

Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide

Weitere Titelangaben:

Pet. Chem.

Beteiligte:

Melnikov, D. P. (Autor:in) / Smirnova, E. M. (Autor:in) / Reshetina, M. V. (Autor:in) / Glotov, A. P. (Autor:in) / Novikov, A. A. (Autor:in) / Gushchin, P. A. (Autor:in) / Wang, H. Q. (Autor:in) / Vinokurov, V. A. (Autor:in)

Erschienen in:

Petroleum Chemistry ; 63 ; 1228-1234

Erscheinungsdatum:

01.10.2023

Format / Umfang:

7 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544123090049

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

gallium-containing catalysts , oxidative dehydrogenation , halloysite , carbon dioxide , propane , propylene Chemistry , Industrial Chemistry/Chemical Engineering , Chemistry and Materials Science

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