The use of mixed refrigerant cycle for ethylene plant,the composition of mixed refrigerant and process flow sheets with open and closed loop refrigerant cycle are summarized.

• 概述了混合冷冻剂循环技术在乙烯装置的应用，阐述了混合冷冻剂的组成，开环及闭环混合冷冻剂的循环流程。