copper zeolite Y
4.Y-CTS and CY-CTS,a series of composite supports used for heavy oil hydrotreating catalysts,was prepared by in-situ growth method,in which CTS presented TiO2-SiO2 and Y presented HY zeolite and CY presented the HY zeolite pretreated by citric acid. The effect of the contents of HY zeolite in Y-CTS and CY in CY-CTS on the properties of Y-CTS and CY-CTS were studied.
10.This study focused on characterization of high-silica Y zeolites prepared by SiCI4 treatment. Nitrogen adsorption,AEM,ESCA,29Si MAS NMR,27AI MAS NMR and FT-IR were need for physico-chemical analysis to investigate the adsorption properties, pore structure, the homogeneous of dealumination, distribution of silicon or aluminum and the acidity of the high-silica Y zeolite. Catalysts using high-silica Y zeolite as active component have been evaluated.
