The two main sources of atmospheric carbon dioxide are discussed in the chemical industry.
Between heaven and earth, the flow of gas and carbon dioxide in the atmosphere have two sources. In the chemical industry, there are also traces.

First, the combustion of fossil fuels is an important source of atmospheric carbon dioxide. Chemical industry often relies on fossil fuels such as coal, oil, and natural gas. When burned, carbon and oxygenation generate carbon dioxide and disperse in the atmosphere. This process is particularly prominent in the energy supply link of chemical production. For example, in a chemical refining plant, if you want to convert raw materials, you mostly burn fossil fuels to obtain heat. This heat is the reaction power, but it also causes carbon dioxide to increase. And many chemical processes, such as the preparation of synthesis gas using natural gas as raw materials, the carbon dioxide produced in the combustion stage, if not properly disposed of, is directly discharged into the atmosphere, accumulating over the years, which has a significant impact on the concentration of carbon dioxide in the atmosphere.

Second, the chemical reaction in the chemical production process is also the source of carbon dioxide. Taking cement manufacturing as an example, when limestone is calcined, calcium carbonate is thermally decomposed and carbon dioxide escapes. This is due to the specific reaction process of the chemical industry. In addition, plastic production, from monomer polymerization to molding, each step of the reaction may require specific conditions, and when energy is input, it may also produce carbon dioxide. And many organic synthesis reactions, in order to achieve the desired product, the reagents and conditions used can cause carbon elements to be released in the form of carbon dioxide and into the atmosphere.

In summary, in the chemical industry, the combustion of fossil fuels and specific chemical reactions are the two main sources of atmospheric carbon dioxide. It is crucial to identify its source, control the concentration of atmospheric carbon dioxide, protect the ecological environment, and make the chemical industry sustainable.