This paper discusses the liquid nitrogen washing (LNW)process and the problems met in the operation of Lurgi LNW unit? Reasons for the problems are analyzed and the solution measures are put forward. ?

• 讨论液氮洗工艺及鲁奇装置中液氮洗工艺运行中所遇到的问题，分析原因，并提出改进对策。