A kind of impregnating solution of hydrogenation catalyst and the method for preparing hydrogenation catalyst

Abstract

The invention provides a dipping solution of hydrogenation catalyst, which contains water-soluble VIB-group metal compound, water-soluble VIII-group metal organic acid salt and water-soluble organic additives, wherein the water-soluble organic additives can reduce the surface tension of water solution of the water-soluble VIB-group metal compound and the water-soluble VIII-group metal organic acid salt. The invention also provides a method for preparing the hydrogenation catalyst, which is realized through the following steps that: catalyst carrier is contacted with the dipping solution of the hydrogenation catalyst, then the catalyst carrier is dried, and the dipping solution of the hydrogenation catalyst is provided by the invention. Due to the adoption of the hydrogenation catalyst which is prepared by the dipping solution of the hydrogenation catalyst, the hydrogenation catalytic activity of heavyweight aromatic hydrocarbon can be remarkably improved.

Description

technical field [0001] The invention relates to an impregnation solution of a hydrogenation catalyst and a method for preparing a hydrogenation catalyst by using the hydrogenation catalyst. Background technique [0002] Hydrogenation catalyst is a kind of catalyst widely used in petroleum refining process. It has high hydrogenation activity during use. This high hydrogenation activity is generally derived from metal groups with VIB and VIII groups in the periodic table of elements. point. In order to further improve the hydrogenation activity of the catalyst, the goal is generally achieved by improving the preparation method of the catalyst. For example, by adding an organic complex, the dispersion of Group VIII metals on the surface of the support is improved, thereby increasing the hydrogenation activity. [0003] CN 1175481A discloses a co-impregnation solution for preparing hydrocracking catalyst, which consists of: 25-65g WO3 / 100ml solution, 3-20g NiO / 100ml solution, ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new hydrogenation catalyst in order to overcome the defects of low metal utilization rate and poor hydrogenation catalytic effect of the hydrogenation catalyst prepared by using the co-immersion solution of the existing hydrogenation catalyst. Impregnation solution, and a method for preparing a hydrogenation catalyst using the impregnation solution of the hydrogenation catalyst, the hydrogenation catalyst prepared by the impregnation solution of the hydrogenation catalyst has good hydrogenation catalytic activity for heavy aromatics