介孔CuO/SiO2用于汽油氧化-吸附脱硫

 利用(C₁₆H₃₃) N(CH₃)₃]₃-PW₁₂O₄₀]双亲催化剂与H₂O₂组成的催化氧化体系对汽油进行氧化后，以介孔SiO₂为载体等体积浸渍法制备的介孔CuO/SiO₂为吸附剂，采用固定床连续流动式吸附脱硫评价装置，考察了CuO/SiO₂的CuO负载量、焙烧温度、焙烧时间和吸附温度对汽油脱硫率的影响，并对介孔CuO/ SiO₂吸附剂性质进行了XRD表征。结果表明，采用在焙烧温度为400℃、焙烧时间为2.0 h、CuO负载量为2%制备的CuO/SiO₂， 在吸附温度为120℃时，汽油氧化-脱硫的脱硫效果较好，汽油脱硫率可达56.82%。

Oxidation-Adsorption Desulfurization of Gasoline by Mesoporous CuO/SiO2

After the gasoline was oxidized with (C₁₆H₃₃)N(CH₃)₃]₃-PW₁₂O₄₀] and H₂O₂ as amphiphilic catalyst and oxidant, respectively, the CuO/SiO₂ adsorbent prepared by wetness incipient impregnation method and mesoporous SiO₂ as the support was employed to remove the sulfur from the gaoline sample, in which a continuous flow fixed bed adsorption desulfurization equipment was used. The influences of mass fractions of CuO, calcination temperature, calcination time of CuO/SiO₂ and adsorption temperature on the desulfurization of gasoline were investigated. The mesoporous CuO/SiO₂ adsorbents were also characterized by X-ray diffraction (XRD). The results showed that sulfur removal rate of gasoline by the oxidation-adsorption process could reach 56.82% under the CuO/SiO₂ preparation conditions of calcination temperature 400℃，calcination time 2.0 h, CuO mass fraction 2%, and adsorption temperature of 120℃.