Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study
Metal-aluminophosphate solid acids ($m$-AlPO) were prepared and characterized by various techniques such as powder-XRD, FT-IR, BET surface area, SEM, TEM, EDAX, NH$_{3}$-TPD/$n$-butylamine back titration and ICP-OES techniques. These materials were used as catalysts in liquid phase etherification re...
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Académie des sciences
2022-05-01
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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.132/ |
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| author | Shyam Prasad, K. Shamshuddin, S. Z. Mohamed |
| author_facet | Shyam Prasad, K. Shamshuddin, S. Z. Mohamed |
| author_sort | Shyam Prasad, K. |
| collection | DOAJ |
| description | Metal-aluminophosphate solid acids ($m$-AlPO) were prepared and characterized by various techniques such as powder-XRD, FT-IR, BET surface area, SEM, TEM, EDAX, NH$_{3}$-TPD/$n$-butylamine back titration and ICP-OES techniques. These materials were used as catalysts in liquid phase etherification reaction of glycerol with alcohol. In order to obtain good yield of the reaction product, optimization reaction was carried out by varying time, temperature, catalyst weight and molar ratio of reactants. CuAlPO solid acid showed superior performance in a short period of time with 95% glycerol conversion and 68% selectivity to higher ethers (di and tri). The catalytic activity was investigated by three heating techniques (microwave, ultrasonic and conventional). The pre-adsorption experiment obeys the Langmuir–Hinshelwood type mechanism. Kinetic studies were also carried out to determine the activation energy $(E_a)$ and temperature coefficient $(T_c)$ of the catalyst. The catalyst was reused for several reaction cycles without much loss of catalytic activity. |
| format | Article |
| id | doaj-art-926c31b7506d4a90bcbefc0f44d6155e |
| institution | Kabale University |
| issn | 1878-1543 |
| language | English |
| publishDate | 2022-05-01 |
| publisher | Académie des sciences |
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| series | Comptes Rendus. Chimie |
| spelling | doaj-art-926c31b7506d4a90bcbefc0f44d6155e2025-02-07T13:31:13ZengAcadémie des sciencesComptes Rendus. Chimie1878-15432022-05-0125G114917010.5802/crchim.13210.5802/crchim.132Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic studyShyam Prasad, K.0Shamshuddin, S. Z. Mohamed1Bharathiar University, Coimbatore 641 046, Tamilnadu, India; Chemistry Research Laboratory, HMS Institute of Technology, Tumakuru 572104, Karnataka, IndiaBharathiar University, Coimbatore 641 046, Tamilnadu, India; Chemistry Research Laboratory, HMS Institute of Technology, Tumakuru 572104, Karnataka, IndiaMetal-aluminophosphate solid acids ($m$-AlPO) were prepared and characterized by various techniques such as powder-XRD, FT-IR, BET surface area, SEM, TEM, EDAX, NH$_{3}$-TPD/$n$-butylamine back titration and ICP-OES techniques. These materials were used as catalysts in liquid phase etherification reaction of glycerol with alcohol. In order to obtain good yield of the reaction product, optimization reaction was carried out by varying time, temperature, catalyst weight and molar ratio of reactants. CuAlPO solid acid showed superior performance in a short period of time with 95% glycerol conversion and 68% selectivity to higher ethers (di and tri). The catalytic activity was investigated by three heating techniques (microwave, ultrasonic and conventional). The pre-adsorption experiment obeys the Langmuir–Hinshelwood type mechanism. Kinetic studies were also carried out to determine the activation energy $(E_a)$ and temperature coefficient $(T_c)$ of the catalyst. The catalyst was reused for several reaction cycles without much loss of catalytic activity.https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.132/Amorphous mesoporous aluminophosphateConventional heating approachMicrowave heating approachUltrasonic heating approachKinetic studyScherrer equation |
| spellingShingle | Shyam Prasad, K. Shamshuddin, S. Z. Mohamed Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study Comptes Rendus. Chimie Amorphous mesoporous aluminophosphate Conventional heating approach Microwave heating approach Ultrasonic heating approach Kinetic study Scherrer equation |
| title | Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study |
| title_full | Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study |
| title_fullStr | Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study |
| title_full_unstemmed | Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study |
| title_short | Highly efficient conversion of glycerol and $t$-butanol to biofuel additives over AlPO solid acid catalyst under microwave irradiation technique: kinetic study |
| title_sort | highly efficient conversion of glycerol and t butanol to biofuel additives over alpo solid acid catalyst under microwave irradiation technique kinetic study |
| topic | Amorphous mesoporous aluminophosphate Conventional heating approach Microwave heating approach Ultrasonic heating approach Kinetic study Scherrer equation |
| url | https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.132/ |
| work_keys_str_mv | AT shyamprasadk highlyefficientconversionofglycerolandtbutanoltobiofueladditivesoveralposolidacidcatalystundermicrowaveirradiationtechniquekineticstudy AT shamshuddinszmohamed highlyefficientconversionofglycerolandtbutanoltobiofueladditivesoveralposolidacidcatalystundermicrowaveirradiationtechniquekineticstudy |