نوع مقاله : مقاله پژوهشی
نویسندگان
1 مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه ارومیه، ارومیه
2 گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه ارومیه، ارومیه، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Nitrogenous compounds should be removed from fuel due to their negative effects on the environment and catalyst stability. In this research, titanium dioxide and magnetite were added to the UiO-66 metal-organic framework, and the Fe3O4/TiO2/UiO-66 composite was used to denitrogenation of the model fuel. The synthesized metal-organic framework and composite were analyzed by XRD, FTIR and BET methods. Characterization analyzes showed that titanium dioxide and magnetite were well incorporated into UiO-66. The adsorption results showed that the Fe3O4/TiO2/UiO-66 composite removes 200 ppm of quinoline in six hours, with 0.005 g adsorbent in 5 ml of n- heptane fuel containing quinoline at a temperature of 25 ºC at 201 mg.g-1 of adsorbent. According to the values of the squared errors (R2), the degree of conformity of the experimental results with the Langmuir adsorption isotherm model was suitable. The results showed that the pseudo-second order model is more suitable for describing the kinetics. Also, the presented new adsorption system can be considered as an alternative method for fuel refining, which has a very efficient and environmentally friendly performance.
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کلیدواژهها [English]
. V.C. Srivastava, “An evaluation of desulfurization technologies for sulfur removalfrom liquid fuels,” RSC Adv, vol. 2, pp.759–783, 2012.