西南科技大学本科生毕业论文I合成氨厂变换车间工艺设计摘要：本设计主要是对合成氨工厂变换工段的设计，此设计选用中变串低变工艺流程。工艺计算过程主要包括物料衡算，能量衡算以及设备选型计算等。关键词：合成氨；变换；计算西南科技大学本科生毕业论文IITheTechnologicalDesignontransformSystemforAmmoniaPlantAbstract：Thisdesignwasmainlyforthesyntheticammoniaplantshiftconversionsection.Thetechnologicalprocessusedthemiddletemperaturechangefirst，andthenusedthelowtemperaturechange.Processcalculationmainlyincludedmaterialbalance,energybalanceandequipmentselection.Keywords:ammoniasynthesis,transform,calculation.西南科技大学本科生毕业论文III目录第1章绪论.......................................................................................................................11.1概述.........................................................................................................................11.2目的和意义.............................................................................................................11.3合成氨工业概况.....................................................................................................21.3.1基本现状.......................................................................................................21.3.2发展趋势.......................................................................................................21.3.3应用领域.......................................................................................................21.4变换工艺介绍.........................................................................................................31.4.1中温变换工艺...............................................................................................31.4.2中串低变换工艺...........................................................................................31.4.3中低低变换工艺...........................................................................................31.4.4全低变工艺...................................................................................................41.5变换工艺的选择.....................................................................................................41.5.1工艺原理.......................................................................................................41.5.2工艺条件.......................................................................................................41.5.3工艺流程确定...............................................................................................51.5.4主要设备的选择说明...................................................................................6第2章物料与热量衡算...................................................................................................72.1已知生产条件.........................................................................................................72.2水气比的确定.........................................................................................................72.3中变炉CO的实际变换率的求取..........................................................................82.4中变炉催化剂平衡曲线.........................................................................................92.5最佳温度曲线的计算...........................................................................................102.6中变炉一...
