针对扬子石化芳烃厂一氧化碳装置投产运行后深冷分离系统出现的问题进行了较为全面的系统分析，分别从工艺流程、仪表、设备等多个角度对系统优化和平稳运行进行了讨论，同时对该装置深冷分离系统几年来运行问题及改进措施进行了总结分析，提升运行稳定性、节约非正常排放费用，为国内同类一氧化碳深冷分离工艺的生产提供借鉴。

Complete systematic analysis is performed for the problems happened in the cryogenic separation system of carbon monoxide facility in Aromatic Hydrocarbon Plant of Sinopec Yangzi Petrochemical Company after its commissioning and operation.The optimization and stable operation of the system are discussed from the aspects of process flow,instrument and equipment.At the same time,the operation problems arose in the cryogenic separation system in recent years are also discussed and the relating improvement measures are summarized and analyzed in order to improve operation stability and save abnormal emission costs,providing references to the production of similar carbon monoxide cryogenic separation process in China.