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P改性对Mo-Ni/Al2O3煤焦油加氢脱氮性能的影响

石垒 ,  张增辉 ,  邱泽刚 ,  郭芳 ,  张伟 ,  赵亮富

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引用本文: 石垒, 张增辉, 邱泽刚, 郭芳, 张伟, 赵亮富. P改性对Mo-Ni/Al2O3煤焦油加氢脱氮性能的影响[J]. 燃料化学学报, 2015, 43(1): 74-80. shu
Citation:  SHI Lei, ZHANG Zeng-hui, QIU Ze-gang, GUO Fang, ZHANG Wei, ZHAO Liang-fu. Effect of phosphorus modification on the catalytic properties of Mo-Ni/Al2O3 in the hydrodenitrogenation of coal tar[J]. Journal of Fuel Chemistry and Technology, 2015, 43(1): 74-80. shu

P改性对Mo-Ni/Al2O3煤焦油加氢脱氮性能的影响

    通讯作者: 邱泽刚,Tel:0351-2021169,E-mail:qiuzegang@sxicc.ac.cn.
  • 基金项目:

    中国科学院战略性先导科技专项课题(XDA07020200). (XDA07020200)

摘要: 在磷含量1.34%下,采用分步浸渍法按磷添加顺序不同制备了3种改性催化剂:MoP-Ni/Al2O3、Mo-NiP/Al2O3、Mo-Ni/PAl2O3.通过X射线衍射(XRD)、程序升温脱附(NH3-TPD)、程序升温还原(H2-TPR)、氮气吸附等技术对催化剂进行了表征.以新疆中低温煤焦油为原料,考察了不同磷改性方式对催化剂加氢脱氮(HDN)性能的影响.结果表明,适宜的磷添加方式能够改变催化剂的酸性分布,提高10~13 nm加氢脱氮有效孔的比例,并且减弱活性组分与载体的相互作用,同时使得活性组分更易被还原,进而提高催化剂加氢脱氮性能.加氢脱氮活性顺序为Mo-Ni/PAl2O3(74.36%)>Mo-NiP/Al2O3(72.74%)>Mo-Ni/Al2O3(71.72%)>MoP-Ni/Al2O3(56.13%).

English

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  • 收稿日期:  2014-07-14
  • 网络出版日期:  2014-09-22
通讯作者: 陈斌, bchen63@163.com
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