摘要
The micro-spheric Bi_2WO_6 was synthesized by a simple one-step hydrothermal method. Bi_2WO_6 crystals were characterized using XRD, SEM, EDS and BET techniques. Bi_2WO_6, H_2O_2 and [HMIM][BF_4] served as catalyst, oxidant and extracting agent in the oxidative desulfurization system(ODS), respectively. The influence of extraction agent type, oxidant usage, catalyst dosage, temperature, sulfur compound type and other factors on the oxidative desulfurization was studied in the present work. The experimental results demonstrate that Bi_2WO_6 possesses high activity for desulfurization of dibenzothiophene(DBT) and benzothiophene(BT). The desulfurization rate of DBT and BT in model oil could reach 98.1% in 80 minutes and 96.2% in 120min at 70℃, respectively. Moreover, the desulfurization performance of catalyst for DBT hardly changed after being recycled for 10 times.
The micro-spheric Bi2WO6 was synthesized by a simple one-step hydrothermal method. Bi2WO6 crystals were characterized using XRD, SEM, EDS and BET techniques. Bi2WO6, H2O2 and [HMIM][BF4] served as catalyst, oxidant and extracting agent in the oxidative desulfurization system （ODS）, respectively. The infuence of extraction agent type, oxidant usage, catalyst dosage, temperature, sulfur compound type and other factors on the oxidative desulfurization was studied in the present work. The experimental results demonstrate that Bi2WO6 possesses high activity for desulfurization of dibenzothiophene （DBT） and benzothiophene （BT）. The desulfurization rate of DBT and BT in model oil could reach 98.1% in 80 minutes and 96.2% in 120 min at 70 ℃, respectively. Moreover, the desulfurization performance of catalyst for DBT hardly changed after being recycled for 10 times.
基金
financial support of the Natural Science Foundation of China (Project No. 21003069)
the Doctoral Fund of Liaoning Province (201501105)
