化工进展2017，Vol.36Issue(z1)：253-260,8.DOI:10.16085/j.issn.1000-6613.2017-1391
硫酸化Ti-SBA-15的制备及其催化氧化脱硫
Preparation and catalytic oxidative desulfurization of sulfuric acid-acidified Ti-SBA-15
摘要
Abstract
SBA-15 and Ti-SBA-15 mesoporous molecular sieves were prepared by the hydrothermal method using tetraethylorthosilicate as silica source, tetrabutylorthotitanate as titanium source and poly (ethylene glycol )-block -poly (propylene glycol )-block -poly (ethylene glycol ) as structure-directing agent.H2 SO4/SBA-15 and H2 SO4/Ti-SBA-15 were obtained from acidification of as-prepared zeolites using sulfuric acid.The structure, pore distribution,and surface morphology of SBA-15,H2SO4/SBA-15,and H2SO4/Ti-SBA-15 were characterized by fourier transform infrared spectroscopy (FTIR),X-ray diffraction (XRD), BET nitrogen adsorption-desorption isothermal method, electron beam scanning electron microscopy (SEM), and transmission electron microscopy (TEM).The catalytic oxidation performances of removing dibenzothiophene (DBT)from model oil were evaluated by the as-prepared zeolites as catalyst,the cyclohexanone (CYHPO)as an oxidant and acetonitrile as an extractant.The sulfur removal of SBA-15, H2SO4/SBA-15, and H2SO4/Ti-SBA-15 were 36.1%,57.8%,and 65.4%,respectively,with the reaction temperature of 343 K,the reaction time of 60 min,the acetonitrile of 7.5 mL,the molar ratio of CYHPO to DBT of 5:1,and the amount of catalysts of 0.05g.This indicates that the SBA-15 exhibits preferable catalytic oxidative desulfurization activity using acidification and Ti modification.关键词
H2SO4/Ti-SBA-15/催化氧化/二苯并噻吩/过氧化环己酮/脱硫Key words
H2SO4/Ti-SBA-15/catalytic oxidation/dibenzothiophene/cyclohexanone peroxide/desulfurization分类
化学化工引用本文复制引用
林志耿,王寒露,周建龙,黄家燊,刘园园,王红丽..硫酸化Ti-SBA-15的制备及其催化氧化脱硫[J].化工进展,2017,36(z1):253-260,8.基金项目
国家自然科学基金(21403038)、广东省自然科学基金(2015A030313892)、广东省高等学校优秀青年教师培养计划(YQ2015116)及广东石油化工学院校级培育计划(2017pyA009)项目. （21403038）
