CO2 production and consumption balance transformation method

The invention belongs to the technical field of energy conservation and environmental protection, and particularly relates to a CO2 production and consumption balance transformation method which comprises the following steps: collecting carbon dioxide produced by a low-temperature methanol washing device of a synthesis ammonia plant, a pressure swing adsorption device of an acetic acid plant and a triamine tail gas device of a chemical plant, and using the carbon dioxide as feed gas in a gasification device of the acetic acid plant, a sodium bicarbonate device of a sodium carbonate plant and a urea device of the chemical plant; specifically, aerospace furnace gasification is changed into methanol washing seven tower tail gas polluted CO2 for coal conveying, or methanol washing seven tower tail gas is used for preparing pure carbon dioxide gas to be used as carbonization lower section concentrated gas of a sodium carbonate plant; recovering furnace gas of a calcining furnace of a sodium carbonate plant to be u