燃料化学学报2016，Vol.44Issue(8)：970-976,7.
还原温度对低温还原法制备的Ni2 P/Ti-MCM-41催化剂加氢脱硫性能的影响
Effect of reduction temperature on the performance of Ni2 P/Ti-MCM-41 catalyst in hydrodesulfurization
摘要
Abstract
The supported Ni2 P/Ti-MCM-41 catalyst is prepared by temperature-programmed reduction method with nickel chloride (NiCl2·6H2O) as the nickel precursor, ammonium hypophosphite (NH4H2PO2) as the phosphorus precursor and Ti-MCM-41 as the support. The Ni2 P/Ti-MCM-41 catalyst was characterized by H2-TPR, XRD, BET, XPS, and TEM; the effect of reduction temperature on its catalytic performance in hydrodesulfurization (HDS) was investigated by using dibenzothiophene (DBT) as a model compound. The results show that the precursors on the catalyst prepared in this way can be reduced at 318℃, which is at least 200℃ lower than that prepared by traditional methods. Pure Ni2 P phase can be obtained by reduction at 350-500℃;the low reduction temperature is in favor of forming small Ni2 P crystallite size. The Ni2 P/Ti-MCM-41 catalyst obtained at a reduction temperature of 400 ℃ exhibits the highest surface area, the best dispersion of Ni2 P crystallite size, the lowest surface phosphorus content and the highest HDS activity; under 340 ℃, 3. 0 MPa, a H2/oil ratio of 500 ( volume ratio) and a weight hourly space velocity ( WHSV) of 2. 0 h-1 , the conversion of DBT for HDS reaches 99 . 4%.关键词
加氢脱硫/磷化镍/还原温度/Ti-MCM-41/二苯并噻吩Key words
hydrodesulfurization/nickel phosphide/reduction temperature/Ti-MCM-41/dibenzothiophene分类
化学引用本文复制引用
于祺,宋华,宋华林,王健,姜楠,李锋,陈彦广..还原温度对低温还原法制备的Ni2 P/Ti-MCM-41催化剂加氢脱硫性能的影响[J].燃料化学学报,2016,44(8):970-976,7.基金项目
The project was supported by the National Natural Science Foundation of China (21276048), the Natural Science Foundation of Heilongjiang Province of China (ZD201201), the General Program of Education Department of Heilongjiang Province (12541060) and the Graduate Innovation Project of Northeast Petroleum University((YJSCX2016-019NEPU).国家自然科学基金(21276048),黑龙江省自然科学基金(ZD201201),黑龙江省教育厅面上项目(12541060)和东北石油大学研究生创新科研项目(YJSCX2016-019NEPU)资助 （21276048）
