Preparation method of oxygen carrier barium cobalt ferrite

Abstract

The invention discloses a preparation method of an oxygen carrier barium cobalt ferrite. The preparation method comprises the following steps of firstly, by using corresponding nitrate water solution as a raw material, fully mixing, adding a complexing agent, generating complexing reaction with metal ions, and controlling reaction conditions, so as to obtain sol; freeze drying, so as to obtain gel; finally, performing microwave-induced combustion on the gel to generate self-combustion reaction, so as to obtain the oxygen carrier barium cobalt ferrite with high circulating activity and high stability. The prepared oxygen carrier barium cobalt ferrite has the advantages that the chemical composition is accurate and is consistent with a proportional ratio; the components can be easily and accurately controlled; in the process of preparing the gel by a sol-gel method, the cost is low, the operation is simple, the gel component is uniform, a self-combustion method is adopted, the self-combustion reaction is uniform and easy to control, and components of a barium cobalt ferrite product are uniform; the whole preparation technology is simple, the product shape is regular, the size is uniform, the circulating activity is high, the stability is high, and the property is excellent.

Description

technical field [0001] The invention relates to a preparation method of an oxygen carrier, in particular to a preparation method of an oxygen carrier barium iron cobaltate. Background technique [0002] With the rapid growth of population, the continuous deepening of industrialization and the increasing demand for energy, electricity generation based on fossil fuels not only meets the energy demand, but also brings great environmental hazards. The emitted CO2 is the main greenhouse gas. Due to the increase in energy consumption, the concentration of CO2 in the atmosphere is also increasing, and the global temperature is gradually increasing. Therefore, how to reduce CO2 emissions from the combustion of fossil fuels has drawn close attention from the international community. [0003] Among them, CO2 recovery and storage (CCS) in the process of coal and other fossil fuel power production is the most effective way, which can achieve the goal of effectively reducing CO2 emissio...

AI Technical Summary

Problems solved by technology

However, the cost of CCS is relatively high, which brings a huge economic burden to enterprises. Therefore, its promotion and use have always been difficult to implement.