Preparation and performance evaluation of catalysts for catalytic oxidation desulfurization of crude oil
In this study,crude oil with a sulfur content of 1158×10-6 was intensively investigated for oxidative desulfurization using two synthetic nanocatalysts(CuO/SiO2,CuO/TiO2-SiO2).The performance of the carriers and catalysts was examined by X-ray analysis,Fourier transform infrared spectroscopy,and thermogravimetric analysis.The experimental results showed that the catalysts had strong metal-carrier interactions,good active metal dispersion and a wide range of surface morphologies.The desulfurization experiments were carried out using an automated intermittent reactor and the desulfurization effect of the catalysts was measured under different moderate reaction conditions(reaction temperature of 353～413K and reaction time of 40～100min).It was found that the surface area and pore volume of the synthesized nanocatalysts were dispersed in an appropriate manner for the active metals,resulting in desulfurization efficiencies of 87%and 99.2%for CAT-1 and CAT-2 at 413K and 100min,respectively,which could provide new ideas for the production of crude oil with low sulphur content.
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万方数据
维普
