The Preparation of Hydrodenitrogenation Activity of the MoP/TiO2-SiO2-Al2O3

doi:10.3696/j.issn.1672-6952.2010.03.007

Journal of Liaoning Petrochemical University ›› 2010, Vol. 30 ›› Issue (3): 24-27.DOI: 10.3696/j.issn.1672-6952.2010.03.007

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The Preparation of Hydrodenitrogenation Activity of the MoP/TiO₂-SiO₂-Al₂O₃

JIANG Xu，GU Yong-he，WANG Hai-yan**，WEI Min，BAI Ying-zhi，MA Jun

School of Petrochemical Engineering, Liaoning Shihua University, Fushun Liaoning 113001, P.R.China

Received:2010-01-13 Published:2010-09-25 Online:2017-07-05

MoP/TiO₂-SiO₂-Al₂O₃ 的制备及加氢脱芳性能研究

姜旭,顾永和,王海彦* ,魏民,白英芝,马骏

辽宁石油化工大学石油化工学院,辽宁抚顺113001

作者简介:姜旭(1983-),女,辽宁大连市,在读硕士。

Abstract

Abstract:

The TiO₂-SiO₂-Al₂O₃ composite support was prepared by sol-gel method, and then the MoP/TiO₂-SiO₂-Al₂O₃ catalyst was prepared in the way of co-impregnation. XRD results show that the diffraction peaks of TiO₂crystalline phase is due to anatase and SiO₂ is mostly amorphous dispersed in γ-Al₂O₃ cystal surface. After in-situ reduction, the hydrodearomatization (HDA) activity of the catalyst was investigated in the fixed bed reactor. The results suggest that the mole ratio of Ti, Si and Al have a great influence on the activity of composite support catalyst. HDA activity of the MoP/TiO₂-SiO₂-Al₂O₃ catalyst shows the highest activity (65.6%) when the ratio of n(Ti)∶n(Si)∶n(Al) was 1∶1∶4, the Mo loading amount is 20%. In addition, the results also show that the HDA rate of the catalyst with the composite TiO₂-SiO₂-Al₂O₃ support was 19.6% and 13.6% higher than the traditional cataslysts of γ-Al₂O₃ and SiO₂-Al₂O₃, respectively.

Key words:

Sol-gel method , Composite support , HDA , Activity , , Hydrodearomatization rate 

摘要： 采用溶胶—凝胶法及共浸渍法制备了TiO₂-SiO₂ -Al₂O₃ 复合载体,并用共浸渍法制备负载型
MoP/TiO₂-SiO₂-Al₂O₃催化剂。XRD结果表明,TiO₂ 的晶相衍射峰呈锐钛矿,SiO2 则大多以无定型态分散于γ
-Al2O3 晶体表面。通过原位还原技术对催化剂进行还原处理,在连续固定床反应器上进行活性评价,结果表明,钛
硅铝物质的量比对催化剂的活性有很大的影响,在温度为360 ℃,压力为3 MPa,液时空速为1h^-1,氢油体积比为
500∶1的反应条件下,n(Ti)∶n(Si)∶n(Al)为1∶1∶4,Mo负载量为20%时,MoP/TiO₂-SiO₂-Al₂O₃ 催化剂的
加氢脱芳活性最高,达到65.6%。并且TiO₂-SiO₂-Al₂O₃ 三元复合载体比传统的γ-Al₂O₃ 和SiO₂-Al₂O₃ 二
元复合载体的活性分别提高了19.6%和13.6%。

关键词: 溶胶&mdash, 凝胶法 , 复合载体 , 加氢脱芳 , 活性 , , 脱芳率

JIANG Xu，GU Yong-he，WANG Hai-yan*，WEI Min，BAI Ying-zhi，MA Jun. The Preparation of Hydrodenitrogenation Activity of the MoP/TiO₂-SiO₂-Al₂O₃[J]. Journal of Liaoning Petrochemical University, 2010, 30(3): 24-27.

姜旭,顾永和,王海彦,魏民,白英芝,马骏. MoP/TiO₂-SiO₂-Al₂O₃ 的制备及加氢脱芳性能研究[J]. 辽宁石油化工大学学报, 2010, 30(3): 24-27.

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The Preparation of Hydrodenitrogenation Activity of the MoP/TiO₂-SiO₂-Al₂O₃

MoP/TiO₂-SiO₂-Al₂O₃ 的制备及加氢脱芳性能研究

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