石油化工2017，Vol.46Issue(9)：1132-1137,6.DOI:10.3969/j.issn.1000-8144.2017.09.006
磷改性NiW/γ-Al2O3催化剂加氢处理低温煤焦油
Application of phosphorus modified NiW/γ-Al2O3 sulfide catalyst in the hydrogenation of low temperature coal tar
摘要
Abstract
A series of NiW/γ-Al2O3 catalysts with different P contents were prepared by equal volume impregnation with γ-Al2O3 as carrier.Catalytic hydrogenation was carried out by using fixed bed hydrogenation unit.The physical and chemical properties of the catalyst and the product oil were characterized by XRD,N2 adsorption-desorption,NH3-TPD,SEM,FTIR and GC-MS.The results show that the specific surface area and pore size of the catalyst after P modification are decreased,the mesopores and macropores are increased,the content of P is in the range of 0.8％-1.6％(w),and the catalyst sulfide component is evenly distributed on the catalyst surface.The addition of additive P increased the total acid amount of the catalyst first and then decreased,and NiWP-0.8 was the largest.The acidity distribution changed.The results show that the addition of auxiliaries to the catalyst contributes to the hydrogenation of coal tar.When the amount of additive P is 0.8％,the content of paraffins and naphthenes in the product oil is the maximum,while the content of aromatics and other compounds is the minimum.The activity of hydrodesulfurization,hydrodenitrogenation,aromatic hydrogenation and hydrodeoxygenation were the highest.The removal rate of S and N in the oil was more than 97％.关键词
磷改性/催化剂/加氢处理/低温煤焦油Key words
phosphorus modification/catalytic/hydrotreatment/low-temperature coal tar分类
化学化工引用本文复制引用
张明伟,宋纪蓉,马海霞,崔文岗,牛梦龙,李稳宏..磷改性NiW/γ-Al2O3催化剂加氢处理低温煤焦油[J].石油化工,2017,46(9):1132-1137,6.基金项目
国家自然科学基金项目(21646009) （21646009）
国家自然科学基金青年基金项目(21206136) （21206136）
陕西省科技统筹创新工程计划项目(2014KTCL01-09) （2014KTCL01-09）
陕西省教育厅产业化培育项目(14JF026,15JF031) （14JF026,15JF031）
陕西省青年科技新星项目(2016KJXX-32) （2016KJXX-32）
西北大学“优秀青年学术骨干支持计划”. （）
