Stability of PdO-Re2O7/SO42-/ZrO2-Al2O3 catalyst for direct synthesis of propylene from ethylene
During tests of palladium-rhenium catalysts based on sulfated zirconia in the process of direct synthesis of propylene from ethylene, it was found out that modifying the support with γ-Al2O3 increases significantly the stability of the system. Multi-cycle tests showed that systems with alumina conte...
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| creator | Sayfulina, L. F. Buluchevskiy, E. A. Lavrenov, A. V. Arbuzov, A. B. Karpova, T. R. |
| description | During tests of palladium-rhenium catalysts based on sulfated zirconia in the process of direct synthesis of propylene from ethylene, it was found out that modifying the support with γ-Al2O3 increases significantly the stability of the system. Multi-cycle tests showed that systems with alumina content of 20 and 40 wt. % maintain its activity during a few tens of hours at the level of 50-80 %. The propylene yield from cycle to cycle remains practically unchanged (28-35 wt. %). According to UV spectroscopy and GLC with MSD, changes in the palladium and rhenium valence state don’t occur during the catalysts operation. The catalyst deactivation is caused by the C8+ oligomers deposit on its surface resulting from secondary processes of butenes oligomerization on the catalyst acid sites and C6+ hydrocarbons metathesis. |
| doi_str_mv | 10.1063/1.5122910 |
| format | Conference Proceeding |
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F. ; Buluchevskiy, E. A. ; Lavrenov, A. V. ; Arbuzov, A. B. ; Karpova, T. R.</creator><contributor>Lavrenov, Aleksandr V.</contributor><creatorcontrib>Sayfulina, L. F. ; Buluchevskiy, E. A. ; Lavrenov, A. V. ; Arbuzov, A. B. ; Karpova, T. R. ; Lavrenov, Aleksandr V.</creatorcontrib><description>During tests of palladium-rhenium catalysts based on sulfated zirconia in the process of direct synthesis of propylene from ethylene, it was found out that modifying the support with γ-Al2O3 increases significantly the stability of the system. Multi-cycle tests showed that systems with alumina content of 20 and 40 wt. % maintain its activity during a few tens of hours at the level of 50-80 %. The propylene yield from cycle to cycle remains practically unchanged (28-35 wt. %). According to UV spectroscopy and GLC with MSD, changes in the palladium and rhenium valence state don’t occur during the catalysts operation. The catalyst deactivation is caused by the C8+ oligomers deposit on its surface resulting from secondary processes of butenes oligomerization on the catalyst acid sites and C6+ hydrocarbons metathesis.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.5122910</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Aluminum oxide ; Butenes ; Catalysis ; Catalysts ; Chemical synthesis ; Deactivation ; Ethylene ; Metathesis ; Oligomerization ; Oligomers ; Palladium ; Propylene ; Rhenium ; Stability ; Transitional aluminas ; Valence ; Zirconium dioxide</subject><ispartof>AIP Conference Proceedings, 2019, Vol.2143 (1)</ispartof><rights>Author(s)</rights><rights>2019 Author(s). 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R.</creatorcontrib><title>Stability of PdO-Re2O7/SO42-/ZrO2-Al2O3 catalyst for direct synthesis of propylene from ethylene</title><title>AIP Conference Proceedings</title><description>During tests of palladium-rhenium catalysts based on sulfated zirconia in the process of direct synthesis of propylene from ethylene, it was found out that modifying the support with γ-Al2O3 increases significantly the stability of the system. Multi-cycle tests showed that systems with alumina content of 20 and 40 wt. % maintain its activity during a few tens of hours at the level of 50-80 %. The propylene yield from cycle to cycle remains practically unchanged (28-35 wt. %). According to UV spectroscopy and GLC with MSD, changes in the palladium and rhenium valence state don’t occur during the catalysts operation. The catalyst deactivation is caused by the C8+ oligomers deposit on its surface resulting from secondary processes of butenes oligomerization on the catalyst acid sites and C6+ hydrocarbons metathesis.</description><subject>Aluminum oxide</subject><subject>Butenes</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Chemical synthesis</subject><subject>Deactivation</subject><subject>Ethylene</subject><subject>Metathesis</subject><subject>Oligomerization</subject><subject>Oligomers</subject><subject>Palladium</subject><subject>Propylene</subject><subject>Rhenium</subject><subject>Stability</subject><subject>Transitional aluminas</subject><subject>Valence</subject><subject>Zirconium dioxide</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2019</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kF1LwzAYhYMoOKcX_oOAd0K2Nx9N2ssx_IJBxSmINzFtE9bRtTXJhP57NzfwzquXA8855-UgdE1hQkHyKZ0klLGMwgka0SShREkqT9EIIBOECf5-ji5CWAOwTKl0hD6X0RR1U8cBdw4_Vzl5sSxX02UuGJl--JyRWcNyjksTTTOEiF3ncVV7W0YchjaubKjD3tv7rh8a21rsfLfBNq5-1SU6c6YJ9up4x-jt_u51_kgW-cPTfLYgPU15JLQQ3DKQGa146ZgqJYjKqcSIikJagAUqHJPGAThjMucKVhSJtEnKXGmE4mN0c8jd_fG1tSHqdbf17a5SM6YESAa7ojG6PVChrKOJddfq3tcb4wdNQe8X1FQfF_wP_u78H6j7yvEfsUdwLA</recordid><startdate>20190816</startdate><enddate>20190816</enddate><creator>Sayfulina, L. F.</creator><creator>Buluchevskiy, E. A.</creator><creator>Lavrenov, A. V.</creator><creator>Arbuzov, A. B.</creator><creator>Karpova, T. R.</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20190816</creationdate><title>Stability of PdO-Re2O7/SO42-/ZrO2-Al2O3 catalyst for direct synthesis of propylene from ethylene</title><author>Sayfulina, L. F. ; Buluchevskiy, E. A. ; Lavrenov, A. V. ; Arbuzov, A. B. ; Karpova, T. 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V.</creatorcontrib><creatorcontrib>Arbuzov, A. B.</creatorcontrib><creatorcontrib>Karpova, T. R.</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sayfulina, L. F.</au><au>Buluchevskiy, E. A.</au><au>Lavrenov, A. V.</au><au>Arbuzov, A. B.</au><au>Karpova, T. R.</au><au>Lavrenov, Aleksandr V.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Stability of PdO-Re2O7/SO42-/ZrO2-Al2O3 catalyst for direct synthesis of propylene from ethylene</atitle><btitle>AIP Conference Proceedings</btitle><date>2019-08-16</date><risdate>2019</risdate><volume>2143</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>During tests of palladium-rhenium catalysts based on sulfated zirconia in the process of direct synthesis of propylene from ethylene, it was found out that modifying the support with γ-Al2O3 increases significantly the stability of the system. Multi-cycle tests showed that systems with alumina content of 20 and 40 wt. % maintain its activity during a few tens of hours at the level of 50-80 %. The propylene yield from cycle to cycle remains practically unchanged (28-35 wt. %). According to UV spectroscopy and GLC with MSD, changes in the palladium and rhenium valence state don’t occur during the catalysts operation. The catalyst deactivation is caused by the C8+ oligomers deposit on its surface resulting from secondary processes of butenes oligomerization on the catalyst acid sites and C6+ hydrocarbons metathesis.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5122910</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP Conference Proceedings, 2019, Vol.2143 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_5122910 |
| source | AIP Journals Complete |
| subjects | Aluminum oxide Butenes Catalysis Catalysts Chemical synthesis Deactivation Ethylene Metathesis Oligomerization Oligomers Palladium Propylene Rhenium Stability Transitional aluminas Valence Zirconium dioxide |
| title | Stability of PdO-Re2O7/SO42-/ZrO2-Al2O3 catalyst for direct synthesis of propylene from ethylene |
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