One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts

Ethyl acetate, an important fuel additive and green solvent, was produced through one pot oxidative synthesis of EtOH using palladium incorporated SBA-15 type catalysts synthesized by the impregnation (IMP) method. This was the first time these catalysts were used in this reaction at mild EtOH vapor...

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Main Authors: Yesim Gucbilmez, Ibrahim Calis
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Heliyon
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Online Access:http://www.sciencedirect.com/science/article/pii/S2405844025007492
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author Yesim Gucbilmez
Ibrahim Calis
author_facet Yesim Gucbilmez
Ibrahim Calis
author_sort Yesim Gucbilmez
collection DOAJ
description Ethyl acetate, an important fuel additive and green solvent, was produced through one pot oxidative synthesis of EtOH using palladium incorporated SBA-15 type catalysts synthesized by the impregnation (IMP) method. This was the first time these catalysts were used in this reaction at mild EtOH vaporization conditions (35 °C). XRD, N2 physisorption, SEM, CO chemisorption and TPR methods were used to characterize the as-synthesized catalysts. All the catalysts were found to maintain the SBA-15 semi-crystalline structure with high BET surface areas (626–665 m2/g), and high pore volumes (0.93–0.95 cm3/g) and metal distributions in the range of 24–29 %. The optimum Pd/Si molar ratio in solution was found to be 0.03 and the corresponding catalyst was tested in the one pot oxidative synthesis of ethyl acetate at different reaction temperatures and different O2/EtOH molar ratios. The maximum ethyl acetate yield was obtained as 0.25 at 200 °C and 1 atm at an O2/EtOH molar ratio of 0.5 and space velocity of 2206 h−1 using this catalyst. The fact that the best yield was obtained at mild conditions of temperature and pressure decreased the energy requirement of the ethyl acetate production process. In addition, in Turkey, bio-ethanol is produced from sugar beet pulp, thus, the oxidative synthesis of ethyl acetate can be made more sustainable by using sugar beet based ethanol.
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spelling doaj-art-6cb03895cbbc4e39ae16effa83c783b22025-02-02T05:29:06ZengElsevierHeliyon2405-84402025-02-01113e42369One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalystsYesim Gucbilmez0Ibrahim Calis1Department of Chemical Engineering, ESTU, Eskisehir, 26555, Turkey; Corresponding author.Central Research Lab, Bartin University, Bartin, 74100, TurkeyEthyl acetate, an important fuel additive and green solvent, was produced through one pot oxidative synthesis of EtOH using palladium incorporated SBA-15 type catalysts synthesized by the impregnation (IMP) method. This was the first time these catalysts were used in this reaction at mild EtOH vaporization conditions (35 °C). XRD, N2 physisorption, SEM, CO chemisorption and TPR methods were used to characterize the as-synthesized catalysts. All the catalysts were found to maintain the SBA-15 semi-crystalline structure with high BET surface areas (626–665 m2/g), and high pore volumes (0.93–0.95 cm3/g) and metal distributions in the range of 24–29 %. The optimum Pd/Si molar ratio in solution was found to be 0.03 and the corresponding catalyst was tested in the one pot oxidative synthesis of ethyl acetate at different reaction temperatures and different O2/EtOH molar ratios. The maximum ethyl acetate yield was obtained as 0.25 at 200 °C and 1 atm at an O2/EtOH molar ratio of 0.5 and space velocity of 2206 h−1 using this catalyst. The fact that the best yield was obtained at mild conditions of temperature and pressure decreased the energy requirement of the ethyl acetate production process. In addition, in Turkey, bio-ethanol is produced from sugar beet pulp, thus, the oxidative synthesis of ethyl acetate can be made more sustainable by using sugar beet based ethanol.http://www.sciencedirect.com/science/article/pii/S2405844025007492SBA-15Pd-SBA-15One pot oxidative synthesisEthyl acetatePartial oxidation
spellingShingle Yesim Gucbilmez
Ibrahim Calis
One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts
Heliyon
SBA-15
Pd-SBA-15
One pot oxidative synthesis
Ethyl acetate
Partial oxidation
title One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts
title_full One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts
title_fullStr One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts
title_full_unstemmed One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts
title_short One pot oxidative ethyl acetate synthesis using palladium activated SBA-15 type catalysts
title_sort one pot oxidative ethyl acetate synthesis using palladium activated sba 15 type catalysts
topic SBA-15
Pd-SBA-15
One pot oxidative synthesis
Ethyl acetate
Partial oxidation
url http://www.sciencedirect.com/science/article/pii/S2405844025007492
work_keys_str_mv AT yesimgucbilmez onepotoxidativeethylacetatesynthesisusingpalladiumactivatedsba15typecatalysts
AT ibrahimcalis onepotoxidativeethylacetatesynthesisusingpalladiumactivatedsba15typecatalysts