Chemical method for trapping, fixing and purifying carbon dioxide, sulfur dioxide, sulfur trioxide and nitrogen oxides

Abstract

The invention provides a chemical method for trapping, chemically fixing and purifying greenhouse gases such as carbon dioxide, sulfur dioxide, sulfur trioxide, nitrogen oxides and the like, which is characterized by adopting an organic metal compound and a solvent as trapping and chemical fixing agents, wherein the organic metal compound is a coordination compound of nitrogenous organic bismuth and organic antimony; and the solvent is an organic solvent. By means of the method, the trapping and chemical fixing of all the greenhouse gases can be realized to form corresponding metal salts; and at different temperatures, selective gradient analysis can be realized so that the trapping and purification of single gas is further realized. The trapping and fixing agents have high fixing capacity, high analytic speed, low regeneration energy consumption and low price, are easy and simple to prepare, have high stability and can be used repeatedly. The chemical method can be widely used for carrying out trapping and chemical fixing on the greenhouse gases in flue gas, synthesis ammonia, natural gas, kiln gas and the like and can realize enrichment purification of the single gas in one step.

Description

A chemical method for capturing, immobilizing and purifying carbon dioxide, sulfur dioxide, sulfur trioxide and nitrogen oxides 【Technical field】 The invention belongs to the technical fields of resource environment and chemical engineering, and in particular relates to a novel high-efficiency chemical compound for the capture, chemical fixation and purification of carbon dioxide (CO2), sulfur dioxide (SO2), sulfur trioxide (SO3) and nitrogen oxides (NOX). absorbent. 【Background technique】 Carbon dioxide (CO2) is currently the most dominant greenhouse gas on Earth. With the occurrence of the industrial revolution and the advancement of science and technology, the emission of CO2 is increasing day by day. The greenhouse effect caused by the high content of greenhouse gases such as CO2 in the atmosphere has seriously affected human production and life. On the other hand, CO2 is an inexhaustible carbon resource on the earth. With the massive use of traditional carbon resour...

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Problems solved by technology

In addition, these methods also have many problems, such as: only a single CO2 can be absorbed, and the enrichment and purification of multiple gases cannot be realized, and the absorption efficiency is low, the absorption conditions are harsh, the regeneration energy consumption is high, the reusability is poor, and the complex Poor stability, etc.

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