Method of using methanol exhausted gas as regenerated gas and cold blowing air for temperature swing adsorption

The invention discloses a method of using methanol exhausted gas as regenerated gas and cold blowing air for a temperature swing adsorption technical process in a calcium carbide furnace tail gas purifying process. The method mainly comprises the following steps of: (1) recycling hydrogen in methanol exhausted gas by using a pressure swing adsorption hydrogen extraction method in a production technology of producing methanol by purifying calcium carbide furnace tail gas and yellow phosphorus tail gas; (2) leading desorbed tail gas subjected to the pressure swing adsorption hydrogen extraction to serve as cold blowing air in the temperature swing adsorption process; (3) reheating exhaust gas after temperature swing adsorption and cold blowing, and using the heated exhaust gas as regenerated gas for the temperature swing adsorption; and (4) leading regenerated waste gas to enter a waste gas header pipe after the regenerated waste gas comes out of the temperature swing adsorption and is cooled, reaching the stan