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- W2996868541 abstract "Zeolite Y is well-known as hydrated alumino-silicate minerals, which are used in catalysis, adsorption, and separation. The catalytic properties of zeolites depend on acidity and surface area. It can be modified by Si/Al ratio. The main objective of this paper study the effects of the dealumination process of zeolite Y on acidity and morphology. Dealumination of zeolite Y used H2SO4, drying process at 100 °C for 1 hour, then the calcinating process at 500 °C for 3 hours. After dealumination, characterization attempts through surface area analyzer using BET (Brunauer-Emmett-Teller) method to determine the surface area of the catalyst and acidity analysis using NH3 and pyridine to determine a total of acidity and total of acidity at the surface of the catalyst. Based on the result, dealuminated catalyst has less acidity number for both surface and total body (0.00006 mol/gram and 0.0031 mol/gram) with a greater number of surface areas (668.694 m2/gram) compares to all the zeolite Y without dealumination. It is caused by dealuminated zeolite Y has more active sites due to decreasing number of alumina and caused a bigger porosity. Bigger porosity indicates a smaller surface area of catalyst." @default.
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- W2996868541 date "2020-01-01" @default.
- W2996868541 modified "2023-09-25" @default.
- W2996868541 title "The effect of dealumination process on zeolite Y acidity and morphology" @default.
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- W2996868541 doi "https://doi.org/10.1063/1.5140913" @default.
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