30万t/a凯洛格氨合成系统流程分析与模拟  

Process Analysis and Analog for Kellogg Ammonia Synthesis System with a Capacity of 300kt/a

作　　者：蒋柏泉[1] 陈常青[1] 刘玉德[1] 

机构地区：[1]南昌大学环境与化学工程学院,江西南昌330029

出　　处：《化肥设计》2006年第5期15-17,29,共4页Chemical Fertilizer Design

摘　　要：应用化工系统分析理论中萨金特与威斯特伯格(R W H Ssrgent&A W W esterberg)的单元串搜索法和自由度分析法,对30万t/a大型凯洛格合成氨装置氨合成系统进行流程分块、再循环回路切割和单元设备计算排序,结果表明,当一定的原始设计变量确定后,计算顺序中的每个单元设备(或选择的体系)的物料子问题的自由度均为0或小于0。该法既可避免复杂的物热联解并省去全系统的迭代收敛,又可应用序贯联立模块法进行物料平衡的模拟计算,使计算快速准确。Using the R W H Ssrgent ＆ A W Westerberg＇s unit series search method and free dimension analysis method, the flow sheet separation, recilculating loop cutting and unit equipment calculation sequence for the ammonia synthesis system in the large-sized Kellogg ammonia synthesis unit with a capacity of 300 kt/a, result indicates when after the definite original design variables are determined, the free dimension of material sub problem for each unit equipment（ or selected system in calculating sequence） is 0 or ≤0. This method means that not only could the complicate material/heat combination solution be avoided and the iteration-convergence of the whole system be omitted, but also the simulation calculation of material balance could be made using the sequence/string simultaneity module method, that makes the computation more quickly and more accurately.

关 键 词：合成氨 系统分解 回路切割 自由度分析 序贯模块 分析 

分 类 号：TQ113.26[化学工程—无机化工]