Method for preparing aluminum oxide loaded ruthenium catalyst

Abstract

The invention discloses a method for preparing an aluminum oxide loaded ruthenium catalyst. The method comprises the steps of: heating an aluminum oxide carrier; adding an assistant to the surface of the aluminum oxide carrier; further heating the aluminum oxide carrier; and stopping heating when the pH value of the surface of the aluminum oxide carrier is 7.6-8, so as to obtain the aluminum oxide load ruthenium catalyst. In the manner, the method for preparing the aluminum oxide load ruthenium catalyst provided by the invention is simple in preparation process; the production time can be shortened; the material and manpower costs are reduced; the production cost is greatly reduced; the obtained aluminum oxide load ruthenium catalyst is low in temperature and pressure, high in activity, unconspicuous inhibitional effect from ammonia, and good in stability and selectivity.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method for preparing an alumina-loaded ruthenium-based catalyst. Background technique [0002] A catalyst, also known as a catalyst, is a chemical reaction that can change the rate of other substances in a chemical reaction. It can not only increase the rate of a chemical reaction, but also reduce the rate of a chemical reaction, and its own quality and chemical properties have not occurred before and after the chemical reaction. changed substance. Some catalysts are single compounds, some are complex compounds, and some are mixtures. Catalysts are also selective, and different reactions use different catalysts, and the same reaction also has catalysts with different effects. [0003] In the Ru-Zn alloy catalysts that have been industrialized at present, the utilization rate of ruthenium is low, and the price is expensive, and it is very sensitive to elements such as S, ...

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Problems solved by technology

[0003] In the Ru-Zn alloy catalysts that have been industrialized at present, the utilization rate of ruthenium is low, and the price is expensive, and it is very sensitive to elements such as S, Pd, As, etc., and the alumina-supported ruthenium-based catalyst can greatly reduce the amount of precious metal ruthenium , but because there are more acid centers on the surface of alumina, the activity of alumina-supported ruthenium-based catalysts is relatively low, and the production cost is relatively high