摘要
合成了具有Sandwich型结构的锌钨酸季铵盐Q_(12)[WZn_3(H_2O)_2(ZnW_9O_(34))_2](其中Q=[C_(18)H_(37)(CH_3)_3N]+,[C_(16)H_(33)(CH_3)_3N]+,[C_(12)H_(25)(CH_3)_3N]+),并通过X射线衍射、傅里叶变换红外光谱、热重分析、元素分析等手段对表面活性剂自组装锌钨酸盐复合催化剂进行了表征。以二苯并噻吩为模型化合物和双氧水为氧化剂,考察了复合催化剂在模拟油品氧化脱硫反应中的性能。结果表明,随着表面活性剂烷基链长的增长,二苯并噻吩的脱除率逐渐提高,在60℃条件下反应2h,最高可达94.4%。
Sandwich-type polytangstozincic quaternary ammonium salts Q12 [WZn3 （H2 O ）2 （ZnW9 O34 ）2 ]（Q=[C18 H37 （CH3 ）3 N]^＋ ,[C16 H33 （CH3 ）3 N]^＋ ,and[C12 H25 （CH3 ）3 N]^＋ ）were successful-ly synthesized,and the composite catalyst of mixed surfactant and the salts were characterized by X-ray diffraction,Fourier transform infrared spectroscopy,thermal gravity analysis,and elemental analysis. Using mixture of dibenzothiphene,a model compound and hydrogen peroxide,an oxidant as test feed,the as-synthesized composite materials were applied to the catalytic oxidative desulfurization of the mixture to evaluate their activity. The results show that the desulfurization rate of dibenzothiphene is enhanced with increasing alkyl chain length of the surfactant. At 60 ℃ for 2 h,the S removal rate reaches up to 94.4%.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2015年第6期52-56,共5页
Petroleum Processing and Petrochemicals
基金
中国石油天然气集团公司科技开发项目(2012B-2305-02)
关键词
过氧化氢
锌钨酸
氧化脱硫
二苯并噻吩季铵盐
hydrogen peroxide
polytungstozinate
oxidative desulfurization
dibenzothiphene
quaternary ammonium salt
