Aline Trindade

[Aline Trindade @aline_cmt]

Hi @LatinXChem, presenting my work ‘Insights of ethanol conversion into hydrocarbons over zeolites: influence of physicochemical properties on catalytic activity and product distribution’ at #LatinXChem24 #LatinXChemEng #Eng050

[Aline Trindade @aline_cmt]

@JeremyMCarr @LatinXChem Hi Jeremy, our study on ethanol dehydration using zeolites is ongoing. Preliminary reaction tests have been performed, but in the future we will collect data to estimate the activation energy.

[Aline Trindade @aline_cmt]

Hi @LatinXChem, presenting my work ‘Insights of ethanol conversion into hydrocarbons over zeolites: influence of physicochemical properties on catalytic activity and product distribution’ at #LatinXChem24 #LatinXChemEng #Eng050

[Aline Trindade @aline_cmt]

@AlanAguirreSoto @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE Hi Alan, Nb2O5 has good performance in reactions in which water molecules are involved. Also, Nb2O5 has strong Brønsted acidity. Because of this, Nb2O5 has high catalytic activity in esterification reactions and was studied in this work.

[Aline Trindade @aline_cmt]

Hi @LatinXChem, presenting my work ‘Effect of thermal treatment on Nb2O5 properties and catalytic activity in n-butyl acetate synthesis’ at #LatinXChem23 #LatinXChemEng #Eng63 @RSC_ReactionEng, @RSC_MolEng, @LatinXinChE.

[Aline Trindade @aline_cmt]

@AlanAguirreSoto @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE Hi Alan, the highest conversion achieved was 1.2%, using Nb2O5 calcined at 150 °C in a reaction at 60°C, molar ratio of 1:1 and 5g of catalyst.

[Aline Trindade @aline_cmt]

@AlanAguirreSoto @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE Hi Alan, isopropanol decomposition is a model reaction to characterize acid and basic sites of catalysts. If isopropanol is converted to acetone, that means the catalyst has basic sites. If it is converted to propylene or diisopropyl ether, the catalyst has acid sites.

[Aline Trindade @aline_cmt]

Hi @LatinXChem, presenting my work ‘Qualitative analysis of acid sites in beta zeolite by isopropanol decomposition’ at #LatinXChem23 #LatinXChemEng #Eng62 @RSC_ReactionEng, @RSC_MolEng, @LatinXinChE.

[Aline Trindade @aline_cmt]

@AlanAguirreSoto @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE Hi Alan, yes, isopropanol decomposition is widely used as a model reaction to characterize acidic and basic sites of heterogeneous catalysts.

[Aline Trindade @aline_cmt]

@JoaquinResasco @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE @JoaquinResasco Furthermore, the dehydration reaction to form propylene is endothermic and becomes more favorable at higher temperatures, while the formation of diisopropyl ether through dehydration is exothermic.

[Aline Trindade @aline_cmt]

@JoaquinResasco @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE Hi Joaquin, increasing temperature can affect the strength of acid sites due to water desorption or changes in the catalyst structure.

[Aline Trindade @aline_cmt]

@JoaquinResasco @LatinXChem @RSC_ReactionEng @RSC_MolEng @LatinXinChE Hi Joaquin, I did not use pyridine adsorption to quantify the acid sites of beta zeolite, but I intend to use this technique in the future.