Preparation method of copper based hydrogenation catalyst

Abstract

The invention relates to a preparation method of a copper based hydrogenation catalyst, and belongs to the technical field of catalyst preparation. The catalyst is prepared by adopting a staged precipitation method and is divided into two parts of a main body part and a surface auxiliary agent, the catalyst main body is composed of oxides of Cu, Zn and Al and is prepared by a co-precipitation method; the surface auxiliary agent includes one or more of Mg, Ba, Zr, Mn, Ga, Ce, La and Ti and is introduced to the surface of the catalyst main body by the chemical method. The prepared catalyst has the characteristics of high auxiliary agent utilization rate, high mechanical strength, and large number of strong alkaline sites in the surface, is used as a catalyst for a reaction for CO2 hydrogenation synthesis of methanol, and has high CO2 conversion rate and methanol selectivity.

Description

Technical field

[0001] The present invention involves a method of preparing a copper hydrogenation catalyst, which is especially suitable for CO 2 Hydrogenation synthesis methanol reactions are the field of catalyst preparation technology. Background technique

[0002] With the rapid development of modern industries and the continuous improvement of global automotive ownership, the increasing attention of environmental pollution and extreme climate phenomena brought about has attracted great attention from countries around the world.On November 26, 2012, the 18th Convention of the Convention on the Framework of the United Nations (COP18) was held in the capital of Qatar, a representative of the 194 parties to participate in the conference to discuss the overall action of saving the earth and curbing global warming.The plan, among them, global carbon emissions are still the core of discussion.In this background of this global, CO 2 The use of resources and recycling is particularl...