摘要
本研究以四丙基氢氧化铵(TPAOH)为模板剂,正硅酸乙酯(TEOS)为硅源,钛酸四丁酯(TBOT)为钛源,在动态晶化釜内合成形貌规则且粒径约为600 nm的TS-1分子筛。通过改变TBOT的用量,进而改变初始合成液中的硅钛比,考察硅钛比对TS-1分子筛的影响,并采用SEM、TEM、XRD、FT-IR、UV-vis、XPS、N_(2)吸附-脱附技术对制得的催化剂进行表征。将合成得到的TS-1分子筛应用于以噻吩正辛烷为模拟油的体系中,考察TS-1分子筛催化氧化脱硫性能。
Using TPAOH as the template,TEOS as the silicon source and TBOT as the titanium source,the as-prepared samples utilizing a dynamic crystallizating kettle possessed regular morphology and the average particle size of 600 nm.By modulating the dosage of TBOT,and then changing the molar ratio of titanium to silicon in the initial synthesis solution,the effect of silicon to titanium ratio on TS-1 molecular sieve was investigated.TS-1 zeolite properties were characterized by means of SEM,TEM,XRD,FT-IR,UV-vis,XPS,N_(2) adsorption and desorption technology.Finally,using a simulated system of thiophene n-octane dissolved in octane,the catalytic oxidative desulfurization performance of TS-1 zeolite was investigated.
作者
唐明宇
王海彦
任铁强
魏民
孙娜
先宏飞
TANG Ming-yu;WANG Hai-yan;REN Tie-qiang;WEI Min;SUN Na;XIAN Hong-fei(College of Chemistry,Chemical Engineering,and Environmental Engineering,Liaoning Shihua University,Fushun 113001,China;Liaoning Medya Pharmaceuticals Company Limited,Fushun 113001,China)
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2021年第11期1693-1700,共8页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金(2017LQN006)
辽宁省教育厅科研项目(L2019014)资助。
关键词
钛硅分子筛
动态釜
硅钛比
催化氧化脱硫
titanium silicon zeolite
dynamic crystallizating kettle
the ratio of titanium to silicon
catalytic oxidative desulfurization
