Research on the catalysis of α-olefin polymerization to synthesize PAO using imidazolium ionic liquids
Ionic liquid catalysts were synthesized using 1-vinyl-3-benzyl imidazolium chloride,1-benzyl-3-methyl imidazolium chloride,and 1-benzyl-3-ethyl imidazolium chloride as cations,with anhydrous alumi-num chloride(AlCl3)serving as the anion.It was observed that the catalyst synthesized from 1-vinyl-3-benzyl imidazolium chloride and AlCl3 demonstrated enhanced selectivity.The influence of anion/cation molar ratio,reaction temperature,reaction time and catalyst dosage on PAO performance.When the cata-lyst's anion to cation molar ratio was maintained at 2∶1,and the reaction conditions were set at a temper-ature of 80℃,a duration of 3 h,and a catalyst loading of 7%,an outstanding catalytic performance was achieved.Under these conditions,the conversion rate of 1-decene surpassed 90%,resulting in the produc-tion of high viscosity index base oil.This oil exhibited a kinematic viscosity of 52.9 mm2/s at 40℃and 8.7 mm2/s at 100℃,along with a viscosity index of 142.
万方数据
维普
