烟气脱硫
磷钨酸
催化作用
结晶度
化学工程
材料科学
比表面积
打赌理论
化学
核化学
有机化学
复合材料
工程类
作者
Yuling Ma,Airong Li,Cheng Wang,Xingbo Ge
标识
DOI:10.1016/j.cej.2020.127062
摘要
Phosphotungstic acid (H3PW12O40, HPW) exhibits a good desulfurization performance towards the oxidative desulfurization (ODS) of oil-derived fuels. However, it presents two drawbacks: a small specific surface area and poor recovery. In this work, HPW was loaded on the support UiO-66 with a stable structure and large specific surface area, and a family of [email protected] catalysts was prepared. Based on the structure and property analyses of powder FT-IR, ICP-OES, XRD, SEM, TG and BET, [email protected] with defects possessed a high crystallinity, regular morphology, stable structure and dispersed HPW clusters. The removal efficiency of DBT reached 100% and was maintained at 94.70% after 12 times of repeated use under the optimal reaction conditions. The results showed that the catalytic performance of [email protected] catalyst for model oil desulfurization was improved when the defects existed.
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