Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid
Аутори
Pavlović, JelenaPopova, M.
Mihalyi, R. M.
Mazaj, Matjaz
Mali, Gregor
Kovač, Janez
Lazarova, H.
Rajić, Nevenka
Чланак у часопису (Рецензирана верзија)
Метаподаци
Приказ свих података о документуАпстракт
Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, N2 physisorption at −196 °C, 27Al and 29Si MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Brønsted and Lewis acid sites in the catalysts. The catalyti...c activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation.
Кључне речи:
Biolubricant production / Clinoptilolite / Esterification / Renewable levulinic acid / Sulfated SnO2Извор:
Microporous and Mesoporous Materials, 2019, 279, 10-18Издавач:
- Elsevier B.V.
Финансирање / пројекти:
- Порозни материјали на бази оксида у заштити животне средине од генотоксичних супстанци (RS-MESTD-Basic Research (BR or ON)-172018)
- Slovenian Research Agency (research core funding No. P-0021)
- COST Action FP1306 ”Valorisation of lignocellulosic biomass side streams for sustainable production of chemicals, materials & fuels using low environmental impact technologies”
Напомена:
- Published version: http://technorep.tmf.bg.ac.rs/handle/123456789/4157
- This is the peer-reviewed version of the following article: Pavlović J, Popova M, Mihalyi RM, Mazaj M, Mali G, Kovač J, Lazarova H, Rajić N. Catalytic activity of SnO2- and SO4 /SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials. 2019;279:10-18. https://doi.org/10.1016/j.micromeso.2018.12.009
Повезане информације:
- Верзија документа
http://technorep.tmf.bg.ac.rs/handle/123456789/4157 - Верзија документа
https://doi.org/10.1016/j.micromeso.2018.12.009
DOI: 10.1016/j.micromeso.2018.12.009
ISSN: 1387-1811
WoS: 000460843500002
Scopus: 2-s2.0-85058230530
Институција/група
Inovacioni centarTY - JOUR AU - Pavlović, Jelena AU - Popova, M. AU - Mihalyi, R. M. AU - Mazaj, Matjaz AU - Mali, Gregor AU - Kovač, Janez AU - Lazarova, H. AU - Rajić, Nevenka PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5042 AB - Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, N2 physisorption at −196 °C, 27Al and 29Si MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Brønsted and Lewis acid sites in the catalysts. The catalytic activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation. PB - Elsevier B.V. T2 - Microporous and Mesoporous Materials T1 - Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid EP - 18 SP - 10 VL - 279 DO - 10.1016/j.micromeso.2018.12.009 ER -
@article{ author = "Pavlović, Jelena and Popova, M. and Mihalyi, R. M. and Mazaj, Matjaz and Mali, Gregor and Kovač, Janez and Lazarova, H. and Rajić, Nevenka", year = "2019", abstract = "Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, N2 physisorption at −196 °C, 27Al and 29Si MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Brønsted and Lewis acid sites in the catalysts. The catalytic activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation.", publisher = "Elsevier B.V.", journal = "Microporous and Mesoporous Materials", title = "Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid", pages = "18-10", volume = "279", doi = "10.1016/j.micromeso.2018.12.009" }
Pavlović, J., Popova, M., Mihalyi, R. M., Mazaj, M., Mali, G., Kovač, J., Lazarova, H.,& Rajić, N.. (2019). Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials Elsevier B.V.., 279, 10-18. https://doi.org/10.1016/j.micromeso.2018.12.009
Pavlović J, Popova M, Mihalyi RM, Mazaj M, Mali G, Kovač J, Lazarova H, Rajić N. Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials. 2019;279:10-18. doi:10.1016/j.micromeso.2018.12.009 .
Pavlović, Jelena, Popova, M., Mihalyi, R. M., Mazaj, Matjaz, Mali, Gregor, Kovač, Janez, Lazarova, H., Rajić, Nevenka, "Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid" in Microporous and Mesoporous Materials, 279 (2019):10-18, https://doi.org/10.1016/j.micromeso.2018.12.009 . .