Ni2P／AI．MCM．41催化剂的制备及其加氢脱硫性能.pdfVIP

学兔兔 化 工 进 展 ·524· CHEMICAL INDUSTRY AND ENGINEERING PROGRESS 201 1年第30卷第3期 Ni2P／AI．MCM．41催化剂的制备及其加氢脱硫性能 匡志敏 ，龚建议 ，杨运泉 ，王威燕 ，陈来福 ，贺 恒 ( 湘潭大学化工学院，湖南 湘潭411105； 中国石油化工股份有限公司催化剂分公司，北京 100011) 摘 要：以硅酸钠为硅源、硫酸铝为铝源、十六烷基三甲基溴化铵 (CTAB)作模板剂，采用共沸蒸馏与超声波 分散技术相结合的方法制备了介孔分子筛A1 MCM一41。以A1～MCM一41为载体、硝酸镍和磷酸氢二氨为原料，采 用超声波振荡、程序升温还原法制备了Ni2P／A1一MCM一41催化剂，并对A1一MCM一41和Ni，P／A1．MCM．41进行了 傅里叶变换红外光谱、比表面积测定、x射线衍射、扫描电镜表征。考察了Ni，P／A1一MCM一41催化剂对噻吩加氢 脱硫的催化性能。结果表明：采用超声波制得的A1．MCM一41其比表面积、孔容和孔径明显高于常规搅拌制得的 A1一MCM一41，共沸蒸馏制得的A1一MCM一41其比表面积、孔容和孔径高于未共沸蒸馏的A1．MCM一41；在反应时 间为5 h、548 K、3．5 MPa条件下，Ni，P／A1．MCM一41催化剂对噻吩加氢脱硫的转化率接近100％。 关键词：A1．MCM一41；Ni2P；噻吩；加氢脱硫；共沸蒸馏；超声波 中图分类号：O 643．36 文献标志码：A 文章编号：1000—6613(2011)03—0524—06 Preparation and hydrodesulfurization performance ofAl--MCM-41-- supported nickel phosphide catalysts KUANGZhimin ，GONGJianyi ，YANG Yunquan ，WANG Weiyan ，CHENLaifu ，HEHeng ( School ofChemical Engineering，Xiangtan University，Xiangtan 411105，Hunan，China； Catalyst Company，SINOPEC，Beijing 100011，China) Abstract：A1．MCM一4 1 mesoporous molecular sieves were prepared by the azeotropic distillation and ultrasonic dispersive technology using sodium silicate as silica source，aluminum sulfate as aluminum source and cetyltrimethyl ammonium bromide as structure—directing agent．By using A1．MCM 4 1 as support，nickel nitrate and diammonium hydrogen phosphate as raw materials，a series of supported Ni2P catalysts on A1．MCM一4 1 was prepared via the method of temperature—programmed reduction under