中压吸收工艺条件设计基础浅析

Analysis of the Base of Designing Middle Pressure Section Process Conditions

当代尿素生产,不论是采用哪种流程,基本上仍是由三个阶段组成,首先是合成工序;其次是分解并回收返回合成工序,称之为循环工序;最后是蒸发造粒工序。本文以Snamprogetti尿素工艺为例,介绍了循环工序中压部分的影响因素,并以此讨论了中压吸收工段工艺条件的设计基础。

At present, whatever technology in the world, urea production was divided into three phase. The first was synthesis, the second was recycle, and the last was evaporation ＆ prilling. In Snamprogetti urea process, the middle pres- sure section, part of the recycle, was very important of urea plant. The base of designing the middle pressure section was discussed.