第1页共39页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共39页目录摘要：...................................................................................................................................................3ABSTRACT..............................................................................................................................................41．概述.................................................................................................................................................51.1合成氨的工艺流程......................................................................................................................71.1.1原料气制备.................................................................................................................71.1.2净化.............................................................................................................................81.1.3氨合成.........................................................................................................................92.氮氢比控制...................................................................................................................................122.1控制方法.......................................................................................................................................122.1.1先进控制...................................................................................................................122.1.2优化控制...................................................................................................................132.2氮氢比控制方案设计.....................................................................................................................132.2.1基于先进控制算法的氮氢比控制...........................................................................132.2.2基于先进控制软件包的氮氢比控制.......................................................................142.2.3基于优化常规过程控制（PID）的氮氢比控制....................................................142.3氢氮比控制方案比较...............................................................................................................152.4推荐合成氨装置氢氮比优化控制设计方案......................................................................163．温度...............................................................................................................................................173.1反应速度......................................................................................................................................173.2对温度的控制.............................................................................................................................173.3多段冷激式氨合成塔温度先进控制.............................................................................................184.压强.................................................................................................................................................205.催化剂............................................................................................................................................215.1催化剂在还原前的化学组成及其作用.........................................................................................2...
