The presence of sulfur compounds in transportation fuels have always been one of the most important issues discussed in scientific and industrial associations. In recent years, due to the adoption of global policies to address environmental problems, the study of efficient systems for desulfurization of fuels has attracted much attention. In this study, the effects of alkaline treatment with NaOH and NaOH/TPAOH mixtures with different concentrations on adsorption desulfurization of NaY adsorbent were investigated. The adsorbents were characterized by XRD, FE-SEM, BET, EDX, ICP-OES and FT-IR techniques. It was found that alkaline treatment in the NaOH/TPAOH solution with TPAOH/(TPAOH + NaOH) = 0.5 had the highest total surface area followed by the highest adsorption capacity among the desilicated adsorbents. In order to increase the adsorption capacity, copper and cerium metals were impregnated individually and in pairs on this adsorbent at 80 °C. The results showed that impregnating of metal ions increases the adsorption capacity of adsorbents so that CuCe-0.5R adsorbent with values of 21.02 and 24 mg/g had the highest adsorption capacity of thiophene and dibenzothiophene sulfur compounds, respectively. In this regard, the competitive adsorption of toluene and cyclohexene was also investigated in different model fuels containing isooctane as a solvent. The adsorption capacity reduction of sulfur compounds for different adsorbents was in order of Cu-0.5R > CuCe-0.5R > Ce-0.5R, respectively, in the presence of toluene and cyclohexene. Thermodynamics studies showed that the adsorption process is endothermic. The kinetic models in adsorbing the sulfur compounds followed the pseudo-second-order equation.

运输燃料中硫化合物的存在一直是科学和工业协会讨论的最重要的问题之一。近年来，由于采取了全球性的政策来解决环境问题，燃料脱硫高效系统的研究备受关注。本研究研究了不同浓度的 NaOH 和 NaOH/TPAOH 混合物碱处理对 NaY 吸附剂吸附脱硫的影响。通过XRD、FE-SEM、BET、EDX、ICP-OES和FT-IR技术对吸附剂进行了表征。发现在 NaOH/TPAOH 溶液中用 TPAOH/(TPAOH + NaOH) = 0.5 进行碱处理具有最高的总表面积，其次是脱硅吸附剂中最高的吸附容量。为了增加吸附容量，铜和铈金属在 80 °C 下单独或成对浸渍在该吸附剂上。结果表明，金属离子的浸渍提高了吸附剂的吸附能力，使得CuCe-0.5R吸附剂对噻吩和二苯并噻吩含硫化合物的吸附能力分别为21.02和24 mg/g。在这方面，甲苯和环己烯的竞争吸附也在含有异辛烷作为溶剂的不同模型燃料中进行了研究。在甲苯和环己烯存在下，不同吸附剂对硫化合物的吸附容量降低顺序分别为Cu-0.5R > CuCe-0.5R > Ce-0.5R。热力学研究表明吸附过程是吸热的。