Activated and regenerated carbon molecular sieve is a new project independently developed by our company for the development of China's nitrogen industry. The carbon molecular sieve is activated and reused to fill the gap in this field at home and abroad. The technology is to re-use and recycle poisoned and discarded carbon molecular sieve of customers to turn waste into treasure. The application of this technology has greatly reduced the production cost of downstream nitrogen-producing enterprises and industrial waste pollution.The products processed by the activated regeneration technology have been tested by the relevant national supervision and inspection center, the performance indicators are in line with national industry standards, and the nitrogen production capacity has reached or exceeded the original level. The company has obtained the invention patent.