Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems
Catalyst systems of the Lebedev reaction from oxides of Zn, Zr, La, Cu and silica gel were investigated. The catalysts were characterized by BET, XRF, XRD, TPD-$\text{NH}_3$ and TPR. The parameters of ethanol to butadiene-1,3 process were determined using ethanol, acetaldehyde and water as raw mater...
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Académie des sciences
2023-03-01
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| Series: | Comptes Rendus. Chimie |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.221/ |
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| author | Makhin, Maxim Bedenko, Stanislav Budnyak, Alexey Dmitriev, Georgy Zanaveskin, Leonid |
| author_facet | Makhin, Maxim Bedenko, Stanislav Budnyak, Alexey Dmitriev, Georgy Zanaveskin, Leonid |
| author_sort | Makhin, Maxim |
| collection | DOAJ |
| description | Catalyst systems of the Lebedev reaction from oxides of Zn, Zr, La, Cu and silica gel were investigated. The catalysts were characterized by BET, XRF, XRD, TPD-$\text{NH}_3$ and TPR. The parameters of ethanol to butadiene-1,3 process were determined using ethanol, acetaldehyde and water as raw materials without inert diluents. When using a mixture of ethanol and acetaldehyde as a feedstock, the selectivity of the butadiene-1,3 formation exceeds 60% and its productivity is at least $0.32~\text{g}_{\mathrm{BD}}{\cdot } \text{g}_{\mathrm{cat}}^{-1}{\cdot }\text{h}^{-1}$. The average butadiene-1,3 yield was over 34% in 8 h. The stability of the CuO/$\text{La}_2\text{O}_3$/$\text{ZrO}_2$/$\text{SiO}_2$ catalyst was evaluated for 5 cycles of 24 h. When using 96% ethanol, the butadiene-1,3 yield decreased from 25.1% to 13.8% during the full cycle. Oxidation regeneration of the catalyst makes it possible to completely restore its catalytic activity. |
| format | Article |
| id | doaj-art-b5d3e828c18c46b295f443d3699caac7 |
| institution | Kabale University |
| issn | 1878-1543 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | Académie des sciences |
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| series | Comptes Rendus. Chimie |
| spelling | doaj-art-b5d3e828c18c46b295f443d3699caac72025-02-07T13:38:00ZengAcadémie des sciencesComptes Rendus. Chimie1878-15432023-03-0126G1375010.5802/crchim.22110.5802/crchim.221Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systemsMakhin, Maxim0https://orcid.org/0000-0001-6154-3189Bedenko, Stanislav1https://orcid.org/0000-0001-8926-0818Budnyak, Alexey2https://orcid.org/0000-0002-5536-0447Dmitriev, Georgy3https://orcid.org/0000-0001-6529-2655Zanaveskin, Leonid4https://orcid.org/0000-0001-7306-6164A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991, Leninsky Ave 29, Moscow, RussiaA.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991, Leninsky Ave 29, Moscow, RussiaA.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991, Leninsky Ave 29, Moscow, RussiaA.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991, Leninsky Ave 29, Moscow, RussiaA.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991, Leninsky Ave 29, Moscow, RussiaCatalyst systems of the Lebedev reaction from oxides of Zn, Zr, La, Cu and silica gel were investigated. The catalysts were characterized by BET, XRF, XRD, TPD-$\text{NH}_3$ and TPR. The parameters of ethanol to butadiene-1,3 process were determined using ethanol, acetaldehyde and water as raw materials without inert diluents. When using a mixture of ethanol and acetaldehyde as a feedstock, the selectivity of the butadiene-1,3 formation exceeds 60% and its productivity is at least $0.32~\text{g}_{\mathrm{BD}}{\cdot } \text{g}_{\mathrm{cat}}^{-1}{\cdot }\text{h}^{-1}$. The average butadiene-1,3 yield was over 34% in 8 h. The stability of the CuO/$\text{La}_2\text{O}_3$/$\text{ZrO}_2$/$\text{SiO}_2$ catalyst was evaluated for 5 cycles of 24 h. When using 96% ethanol, the butadiene-1,3 yield decreased from 25.1% to 13.8% during the full cycle. Oxidation regeneration of the catalyst makes it possible to completely restore its catalytic activity.https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.221/Butadiene-1,3EthanolLebedev reactionETB processDeactivationSupported catalysts |
| spellingShingle | Makhin, Maxim Bedenko, Stanislav Budnyak, Alexey Dmitriev, Georgy Zanaveskin, Leonid Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems Comptes Rendus. Chimie Butadiene-1,3 Ethanol Lebedev reaction ETB process Deactivation Supported catalysts |
| title | Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems |
| title_full | Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems |
| title_fullStr | Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems |
| title_full_unstemmed | Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems |
| title_short | Investigations into the conversion of ethanol to butadiene-1,3 using CuO/$\protect \text{La}_2\protect \text{O}_3$/$\protect \text{ZrO}_2$/$\protect \text{SiO}_2$ catalyst systems |
| title_sort | investigations into the conversion of ethanol to butadiene 1 3 using cuo protect text la 2 protect text o 3 protect text zro 2 protect text sio 2 catalyst systems |
| topic | Butadiene-1,3 Ethanol Lebedev reaction ETB process Deactivation Supported catalysts |
| url | https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.221/ |
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