For efficient catalytic conversion of co 2 The preparation method of the microbial coupled catalytic system

Abstract

The invention discloses a kind of high-efficiency catalytic conversion of CO 2 The preparation method of the microbial coupling catalytic system comprises the following steps: drying the precursor of the iron-based active metal catalyst to remove water to obtain a solid A; dissolving the auxiliary salt in a solvent to obtain a solution B; immersing the solution B into the solid A The powder is stirred and dried to evaporate water to obtain solid C; the solid C is compressed to 20-40 mesh, and activated to obtain solid D; the solid D is ground to obtain catalyst E; the catalyst E and the domesticated anaerobic microorganism are Under anaerobic conditions, mechanical and physical mixing in a shaker is used to obtain efficient catalytic conversion of CO 2 microbial coupled catalytic system. The catalyst system obtained by coupling anaerobic microorganisms and iron-based catalysts in the preparation method of the invention can accelerate the conversion of inert CO by anaerobic microorganisms. 2 Efficient catalytic conversion into high value-added products such as methanol, formic acid or acetic acid, so as to achieve CO 2 efficient utilization of high value-added products.

Description

technical field [0001] The invention relates to a catalyst preparation method and its application. More specifically, it relates to a method for efficient catalytic conversion of CO 2 The preparation method of the microbial coupling catalytic system. Background technique [0002] The excessive use of fossil fuels has led to a sharp decline in the amount of fossil fuels and a sharp increase in carbon dioxide emissions, which has led to a series of problems such as energy crises, global warming, and ocean acidification. Find renewable energy sources to reduce CO 2 Issues such as emissions need to be resolved urgently. Although CO 2 Leading to a series of environmental problems, we found that CO 2 It can be used as a carbon source for the synthesis of chemical raw material intermediates. In recent years, CO 2 Catalytic hydrogenation of , which has attracted great attention, not only can reduce CO 2 Greenhouse gas emissions to reduce environmental pressure, and high-valu...

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