The Paper bears on the problems appearing before and after the Prism hydrogen recovery set of large ammoniaplant was put into operation and deals with the solving measures.
介绍大型氨厂普里森氢回收装置投运前后存在的问题及对策；
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This paper introduced the reformation of ammoniarecovery system and influence on the environment in urea plant , the process is the energy-saving and easy to operation.