Preparation method of microbial coupling catalytic system for efficient catalytic conversion of CO2

Abstract

The invention discloses a preparation method of a microbial coupling catalytic system for efficient catalytic conversion of CO2, which comprises the following steps: drying and dewatering a precursorof an iron-based active metal catalyst to obtain a solid A; dissolving an auxiliary agent salt into a solvent to obtain a solution B; dipping the solution B into the solid A powder, stirring, and drying to evaporate water to obtain a solid C; tabletting the solid C to 20-40 meshes, and activating to obtain a solid D; grinding the solid D to obtain a catalyst E; and mechanically and physically mixing the catalyst E and the domesticated anaerobic microorganisms by using a shaking table under an anaerobic condition to obtain the microorganism coupling catalysis system for efficiently catalyzing and converting CO2. According to the preparation method, anaerobic microorganisms and the iron-based catalyst are coupled to obtain a catalytic system, and the anaerobic microorganisms can be accelerated to efficiently catalyze and convert inert CO2 into high-added-value products such as methanol, formic acid or acetic acid, so that the efficient utilization of CO2 is realized, and the efficient output of the high-added-value products is realized.

Description

Technical field [0001] The invention relates to a catalyst preparation method and its application. More specifically, it relates to an efficient catalytic conversion of CO 2 The preparation method of the microbial coupling catalytic system. Background technique [0002] Excessive use of fossil fuels has led to a sharp decline in the content of fossil fuels and a sharp increase in carbon dioxide emissions, which has led to a series of problems, such as energy crisis, global warming and ocean acidification. Looking for renewable energy resources to reduce CO 2 Issues such as the emission of water are urgently to be solved. Although CO 2 Led to a series of environmental problems, we found that CO 2 It can be used as a carbon source for synthetic chemical raw material intermediates. In recent years, CO 2 Catalytic hydrogenation has attracted people’s attention. It can not only reduce CO 2 Greenhouse gas emissions to reduce environmental pressure, and high-value chemical substances ...

AI Technical Summary

Problems solved by technology

However, existing microorganisms catalyze the conversion of CO 2 The speed is slow and cannot meet the requirements of industrialization