materials with different crystal forms were synthesized from the boehmite sol. A series of MA materials were used as supports for sulfided NiMo catalysts in the hydrodesulfurization (HDS) of dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT). The as-synthesized MA materials with different crystal forms and the corresponding NiMo catalysts were characterized using XRD, nitrogen physisorption
                                    由勃姆石溶胶合成了具有不同晶型的介孔Al 2 O 3(MA)材料。在
二苯并噻吩(DBT)和
4,6-二甲基二苯并噻吩(4,6-
DMDBT)的加氢脱
硫(HDS)中,一系列MA材料被用作
硫化NiMo催化剂的载体。使用XRD,氮物理吸附,FTIR,
吡啶FTIR,UV-vis,拉曼,H 2 TPR,XPS和HR
TEM表征方法对具有不同晶型的合成MA材料和相应的NiMo催化剂进行了表征。所述的NiMo /δ-Al系2 ö 3(NiMo /δ-MA)催化剂在所有重时空速(WHSVs)下均表现出最高的DBT和4,6-
DMDBT转化率;此外,其DBT转化率(99.6%)约为商用NiMo / Al 2 O 3(NiMo / C-MA)催化剂(50.2%)的两倍,而其4,6-
DMDBT转化率(65.8%)则大于在613 K,4.0 MPa,200 ml / ml和150 h -1的条件下,NiMo / C-MA催化剂(15