ME-1汽油加氢脱硫催化剂及其工业应用

采用高分辨透射电镜（TEM）对工业催化裂化汽油选择性加氢脱硫MoCo/Al2O3催化剂（参比剂）与中国石化抚顺石油化工研究院(FRIPP)开发的ME-1催化剂进行了硫化态催化剂的MoS2相形貌表征。结果表明：ME-1催化剂活性中心MoS2垛层数为3.0~6.0，而参比剂MoS2垛层数为5.0~10.0，表明ME-1催化剂中活性金属组分的分散度较高。重汽油加氢脱硫活性与选择性小型评价结果表明，加氢脱硫产物达到硫质量分数小于10 μg/g时，ME-1催化剂所需反应温度比参比剂低10 ℃，烯烃饱和率减少32.2%，RON损失减少1.6个单位，具有更高的加氢脱硫活性和选择性。ME-1催化剂的工业应用结果表明，将FCC汽油硫质量分数由466 μg/g降至9.7 μg/g时，RON损失1.75个单位，表明ME-1催化剂可满足生产“无硫汽油”的需要。

STUDY AND COMMERCIAL APPLICATION OF FCC NAPHTHA HYDRODESULFURIZATION CATALYST ME-1

ME-1 hydrodesulfurization catalyst newly developed by FRIPP was sulfided and the MoS2 phase morphology of the sulfided catalyst was characterized by higher resolution transmission electron microscopy (TEM) and compared with a commercial reference catalyst MoCo/Al2O3 for selective desulfurization of gasoline. Their HDS activity and selectivity were evaluated by heavy gasoline HDS test. The TEM results show that the numbers of stacking layers of MoS2 particles of ME-1 catalyst are 3.0-6.0 and the reference catalyst is 5.0-10.0, which indicates the higher dispersion of active component of ME-1 catalyst than the compared one. The HDS evaluation results show that when the sulfur content reaches 10μg/g in the product, the reaction temperature of ME-1 catalyst is 10 ℃ lower than the compared catalyst, olefin saturated rate is reduced by 32.2%, the research octane number (RON) loss of the product is reduced by 1.6. The evaluation tests demonstrate that the ME-1 catalyst has a higher HDS activity and selectivity. The commercial application results of ME-1 catalyst show that the sulfur content of FCCN can be reduced from 466 μg/g to 9.7μg/g, RON loss of 1.75. It is showed that ME-1 catalyst can meet the need for production of "sulfur-free gasoline" with less octane number loss.