【摘要】 苯并噻吩类化合物是加氢柴油中的主要残留硫化物,基于噻吩类硫化物与金属离子络合反应机理,选取4种金属氯化物CuCl₂,AlCl₃,FeCl₃,MnCl₂及其双组分复配剂作为络合脱硫剂,对硫质量分数为592μg/g的浅度加氢柴油进行脱硫研究。结果表明:单组分金属氯化物中AlCl₃的脱硫效果最好,双组分金属氯化物中CuCl₂/AlCl₃质量比为1∶1时的脱硫效果最好;工艺条件相同时,双组分金属氯化物CuCl₂/AlCl₃的脱硫效果比单组分金属氯化物的脱硫效果好;综合考虑工艺成本和脱硫周期等因素,浅度加氢柴油脱硫的最佳工艺条件为:反应温度50℃,反应时间30 min,络合脱硫剂加入量（w）10%。在最佳工艺条件下进行脱硫试验,采用AlCl₃为络合脱硫剂时脱硫率达到86%,采用CuCl₂/AlCl₃（质量比为1∶1）为络合脱硫剂时脱硫率达到95%。更多还原

【Abstract】 Benzothiophenes were the main residual sulfides in hydrofining diesels. Based on the complexation mechanism between thiophenes and metal ions,four kinds of metal chlorides such as CuCl₂,AlCl₃,FeCl₃ and MnCl₂ were selected as complexation desulfurizers for desulfurization research on shallow hydrogenated diesel with sulfur mass fraction of 592 μg/g. The results indicated that at the same conditions,the desulfurization effect of AlCl₃ was the best in one-component metal chloride,and that of CuCl₂/AlCl₃ in two-component metal chloride was the best when the mass ratio of CuCl₂/AlCl₃ was 1∶1. Considering the process cost and operation cycle,the optimum process conditions were as follows:50 ℃,reaction 30 min with the mass fraction of complex desulfurizer of 10%. Under optimal process conditions,the desulfurization rate of AlCl₃ can reach 86%,and that of CuCl₂/AlCl₃ can reach 95% when the mass ratio of CuCl₂/AlCl₃ was 1∶1.更多还原