Multilevel hole material load cobalt catalyst, preparation method and application thereof

Abstract

The invention relates to a multi-stage hole material cobalt-loaded catalyst, which is made according to the following parts by weight of 5 to 40 percent of cobalt; 0 to 2.0 percent of precious metals, 0 to 2 percent of non-precious metals, 56 percent to 95 percent of silica. The catalyst is made by an isovolumetric immersion method. The catalyst has the advantages of large surface area, enough central holes and large holes, high thermal stability and hydrothermal stability, selective synthesis of long-chain hydrocarbons with different carbon numbers.

Description

technical field

[0001] The invention relates to a catalyst, its preparation method and application, in particular to a hierarchical porous material-loaded cobalt catalyst, its preparation method and its application in Fischer-Tropsch synthesis. Background technique

[0002] Fischer-Tropsch synthesis refers to the process of synthesizing hydrocarbons from syngas in the presence of catalysts. Cobalt-based catalysts have high activity. C 5+ The advantage of high selectivity is that it is a commonly used catalyst in Fischer-Tropsch synthesis. Although Fischer-Tropsch synthesis has been studied for more than ten years, with the shortage of petroleum resources in recent years and the improvement of citizens' awareness of environmental protection, Fischer-Tropsch synthesis as a gas-to-oil technology has received attention again. How to improve catalyst activity and maintain high C 5+ Selectivity is the goal that researchers are always pursuing.

[0003] Biomass in nature, such...

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