化工进展2016，Vol.35Issue(9)：2790-2795,6.DOI:10.16085/j.issn.1000-6613.2016.09.022
磷钨酸/SBA-15催化氧化-萃取柴油脱硫
Diesel desulfurization by phosphotungstic acid/SBA-15 catalytic oxidation-extraction
李瑞丽 1吕本震 1蒋善良 1李晶晶1
作者信息
- 1. 中国石油大学 北京 重质油国家重点实验室，北京 102249
- 折叠
摘要
Abstract
A series of HPW/SBA-15 were prepared by supersaturated impregnation method with phosphotungstic acid loaded on SBA-15. The catalysts were characterized by means of BET,SEM and TG-DTA. The effects of HPW loading amount and calcination temperature on the desulfurization were investigated by studying the DBT desulfurization performance on the HPW/SBA-15 with H2O2 as oxidation and CTAB as phase transfer catalyst. Meanwhile,the effects of different oxidation-extraction conditions on diesel desulfurization were investigated. The results showed that the best mass percentage of HPW was 30% and HPW/SBA-15 showed the highest activity at 250℃. The sulfur content in the diesel oil decreased from 1317mg/L to 39mg/L and thesulfur removal rate reached 97.0% under the best condition ofn(H2O2)∶n(S)=6,the mass percentage of HPW/SBA-15 of 2.5% that of CTAB of 0.4%(both based on the diesel oil),extraction stage of 4,reaction temperature of 60℃ and reaction time of 1.5h. According to GC analysis,the HPW/SBA-15 catalytic oxidation-extraction method could easily remove dibenzothiophene and its derivatives,which were quite inert in diesel during its hydrodesulfurization.关键词
SBA-15/载体/磷钨酸/催化剂/催化氧化/萃取/柴油/脱硫Key words
SBA-15/support/phosphotungstic acid/catalyst/catalytic oxidation/extraction/diesel/desulfurization分类
能源科技引用本文复制引用
李瑞丽,吕本震,蒋善良,李晶晶..磷钨酸/SBA-15催化氧化-萃取柴油脱硫[J].化工进展,2016,35(9):2790-2795,6.
