Influence on catalytic activity in residue hydrogenation by acidity,pore structure and dispersion

doi:10.16085/j.issn.1000-6613.2015.09.017

Abstract

Abstract: Three methods for improving catalyst activities in residue hydrogenation were summarized. The modulation acidities are introduced by assistants on support,such as P,B and rare earth. The reaming effect of reaming agent,hydrothermal method and nano-assembly method on supports were presented. Furthermore,the role of surfactant on the dispersion of active metal was reviewed with CA and EDTA as a representative complexing agent. Besides,the application status of modified catalysts in residue hydrogenation process was reviewed,the development direction of new nano catalytic materials was pointed out,and then the development of catalysts was combined with modern analysis methods to do further mechanism research. It is expect to provide theoretical basis for modification research of hydrogenation catalyst,and also improve heavy oil treatment process.

Key words: acidity, pore structure, dispersion, catalyst, activity

摘要： 概述了3种提高渣油加氢催化剂活性的方法,介绍了助剂P、B及稀土元素对载体酸性的调变作用,扩孔剂的添加、水热法及纳米自组装的制备方法对载体的扩孔作用以及以柠檬酸(CA)、乙二胺四乙酸(EDTA)等络合剂为代表评述表面活性剂对活性金属的分散作用。评述了改性催化剂在渣油加氢工艺中的应用现状,并指出今后新型纳米催化材料的发展方向,提出催化剂的开发要结合现代分析手段深入机理的研究,有望为渣油加氢催化剂的改性研究提供理论依据,为推动重质油轻质化进程发挥作用。

关键词: 酸性, 孔结构, 分散度, 催化剂, 活性

CLC Number:

TE642.24

WANG Shuang, DING Wei, ZHAO Dezhi, SONG Guanlong, DAI Yongchuan. Influence on catalytic activity in residue hydrogenation by acidity,pore structure and dispersion[J]. Chemical Industry and Engineering Progree, 2015, 34(09): 3317-3322.

王爽, 丁巍, 赵德智, 宋官龙, 戴咏川. 渣油加氢催化剂酸性、孔结构及分散度对催化活性的影响[J]. 化工进展, 2015, 34(09): 3317-3322.

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