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| 大孔径石蜡加氢精制催化剂的制备 | |
| 引用本文： | 徐友明,沈本贤,何金海,朱俊,罗锡辉.大孔径石蜡加氢精制催化剂的制备[J].石油化工,2005,34(5):422-424. |
| 作者姓名： | 徐友明 沈本贤 何金海 朱俊 罗锡辉 |
| 作者单位： | 1. 华东理工大学,化工学院,上海,200237;抚顺石油化工研究院,辽宁,抚顺,113001 2. 华东理工大学,化工学院,上海,200237 3. 抚顺石油化工研究院,辽宁,抚顺,113001 4. 武汉大学,物理科学与技术学院,湖北,武汉,430072 |
| 摘 要： | 采用氨吸附-程序升温脱附(NH3-TPD)、低温N2吸附(BET)、压汞法以及加氢精制活性评价等技术,探索SiO2-Al2O3载体在制备过程中孔结构和表面性质的变化。实验结果表明,采用特殊扩孔剂制备载体,当焙烧温度为700℃时,平均孔径可达到17.3nm,其中孔径大于20nm的孔占总孔体积的13.2%;同时载体表面上的中、强酸中心也全部丧失,均为弱酸中心。采用该载体制备的MoNiP/SiO2-Al2O3石蜡加氢精制催化剂,在MoO3用量减少了约1/4的情况下,比目前工业上使用的催化剂具有更高的脱金属能力和加氢精制活性。 |
| 关 键 词： | 载体 石蜡 加氢精制 催化剂 |
| 文章编号： | 1000-8144(2005)05-0422-03 |
| 修稿时间： | 2004年11月18 |
Preparation of Catalyst with Support of Macro -Pores for Paraffin Wax Hydrofining |
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| Xu Youming,Shen Benxian,He Jinhai,Zhu Jun,Luo Xihui.Preparation of Catalyst with Support of Macro -Pores for Paraffin Wax Hydrofining[J].Petrochemical Technology,2005,34(5):422-424. | |
| Authors: | Xu Youming Shen Benxian He Jinhai Zhu Jun Luo Xihui |
| Affiliation: | Xu Youming 1,2,Shen Benxian1,He Jinhai2,Zhu Jun3,Luo Xihui2 |
| Abstract: | Catalyst support SiO_2-Al_2O_3 was prepared by using special pore-enlarging agent and being calcinated at 700℃.Changes of its pore structure and surface properties were studied by means of NH_3-TPD,BET,and mercury intrusion method.The activity of catalyst was evaluated in a bench-scale reactor.Mean pore diameter of the support was 17.3nm and volume fraction of pore with diameter of more than 20nm accounted for 13.2%.After calcination at 700℃,acid sites on support surface were all of weak acidity.MoNiP/SiO_2-Al_2O_3 catalyst with this support showed higher demetallization ability and higher paraffin wax hydrofining activity than current commercial catalyst in use,despite loading amount of Mo_2O_3 was only 3/4 of the commercial. |
| Keywords: | support paraffin wax hydrofining catalyst |
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