Chemical Industry and Engineering Progress ›› 2020, Vol. 39 ›› Issue (S2): 196-203.DOI: 10.16085/j.issn.1000-6613.2020-0711

• Industrial catalysis • Previous Articles     Next Articles

Research progress of homogeneous mesoporous Al2O3 of hydrodenitrogenation catalyst for inferior gas oil

Wenbin HUANG(), Qiang WEI(), Yasong ZHOU   

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
  • Received:2020-04-29 Online:2020-11-17 Published:2020-11-20
  • Contact: Qiang WEI

均一介孔Al2O3劣质蜡油加氢脱氮催化剂研究进展

黄文斌(), 魏强(), 周亚松   

  1. 中国石油大学(北京)重质油国家重点实验室,北京 102249
  • 通讯作者: 魏强
  • 作者简介:黄文斌(1996—),男,硕士研究生,研究方向为石油与天然气化学。E-mail:18401682448@163.com
  • 基金资助:
    中国石油天然气股份有限公司科技开发项目(2016B-1902)

Abstract:

The hydrodenitrogenation(HDN) performance improvement is the crucial factor but also the difficulty in the development of hydrotreating catalyst for inferior gas oil, while catalyst support preparation and modification technology are the core of obtaining high-performance hydrotreating catalyst for inferior gas oil. To deal with the issue of large pore size distribution of conventional Al2O3, which is not conducive to the diffusion of reactants and the improvement of specific surface area, the preparation methods (sol-gel method, precipitation method, hydrothermal synthesis method) and their advantages and defects of homogeneous mesoporous Al2O3(MA) support were introduced. In order to improve the catalyst hydrodenitrogenation activity, the promoters (phosphorus, boron, fluorine) modification, composite oxides (TiO2-Al2O3, SiO2-Al2O3) modification and composite modification on Al2O3 support in recent years were reviewed. The changes of support acidity and interaction with active phases after modification and their effect on catalyst hydrodenitrogenation performance were analyzed. Future research should focus on the homogeneous mesoporous Al2O3 support and composite modification, with a view to obtain high activity hydrodenitrogenation catalyst for inferior gas oil.

Key words: hydrogenation, catalyst, inferior gas oil, alumina, preparation method, reactivity, modification

摘要:

提高加氢脱氮(HDN)性能是劣质蜡油加氢处理催化剂开发的关键和难点,而催化剂载体材料的制备及改性技术研究是获得高性能劣质蜡油加氢处理催化剂的核心。本文针对常规Al2O3孔径分布较大而不利于反应物的扩散及比表面积的提高问题,介绍了均一介孔Al2O3(MA)载体的制备方法(溶胶-凝胶法、沉淀法、水热合成法)及优缺点。为提高催化剂加氢脱氮活性,综述了Al2O3载体的助剂(磷、硼、氟)改性、复合氧化物(钛铝、硅铝复合氧化物)改性及复合改性的最新研究进展,分析了改性后载体酸性及与活性相间相互作用的变化以及对催化剂加氢脱氮性能的影响。指出未来应着重于均一介孔Al2O3载体及复合改性两方面的研究,以期获得高活性劣质蜡油加氢脱氮催化剂。

关键词: 加氢, 催化剂, 劣质蜡油, 氧化铝, 制备方法, 活性, 改性

CLC Number: 

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