Two MWW zeolite catalysts,purely microporous MCM-22(3D)and hierarchical ITQ-2(2D),were synthesized and functionalized with dodecyltriethoxysilane.The functionalized zeolites were employed in a two-phase glycerol ketal...Two MWW zeolite catalysts,purely microporous MCM-22(3D)and hierarchical ITQ-2(2D),were synthesized and functionalized with dodecyltriethoxysilane.The functionalized zeolites were employed in a two-phase glycerol ketalization reaction with acetone.There are two crucial factors to consider in this reaction:(i)the kinetic diameter of glycerol is comparable to the size of catalyst pores,limiting its accessibility to the active sites and(ii)glycerol exhibits poor solubility in acetone,causing the reaction to predominantly occur at the interfaces.展开更多
基金support granted by the São Paulo Research Foundation-FAPESP,grants#2017/21965-5,#2018/01258-5,#2019/12486-1,#2021/08326-9,and#2022/01789-6.In addition.
文摘Two MWW zeolite catalysts,purely microporous MCM-22(3D)and hierarchical ITQ-2(2D),were synthesized and functionalized with dodecyltriethoxysilane.The functionalized zeolites were employed in a two-phase glycerol ketalization reaction with acetone.There are two crucial factors to consider in this reaction:(i)the kinetic diameter of glycerol is comparable to the size of catalyst pores,limiting its accessibility to the active sites and(ii)glycerol exhibits poor solubility in acetone,causing the reaction to predominantly occur at the interfaces.
