Abstract
A number of alumina supports were synthesized by using a homogeneous sol–gel precipitation technique. The role of organic additive and its effect on surface active sites as well as textural properties have been analyzed. The support was characterized by N2 adsorption–desorption, X-ray diffraction (XRD). fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermal gravimetric and differential scanning calorimetry analysis (TGA/DSC). The surface functional group characterization was carried out by using isopropanol (IPA) as a probe molecule for the acid–base site identification. The solid was used as support for a catalyst and to compare active metal site genesis as a supported catalyst where thiophene reaction was carried out, and activity was compared with the commercial alumina support. The characterization results indicated that the pore enlarging agent (poly (ethylene) glycol, PEG) improve not only textural properties but also significantly modified surface properties, which was evident during the hydrodesulfurization (HDS) of thiophene.
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