摘要
应用化工系统分析中的斯图尔特(DVSeward)回路搜索法和自由度分析法对大型氨合成系统(以凯洛格Kellogg流程为例)进行流程分块、再循环回路切割和单元设备计算排序,发现当一定的原始设计变量确定后,分析得计算顺序中的每一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。因此,既可避免复杂繁琐的物热联解和全系统的迭代收敛,又可应用序贯模块法进行物料平衡的计算机模拟,使计算快速准确。
The D V Seward＇s loop searching method and free degree analysis method in chemical engineering system analysis were used to deposite the flowsheet, to cut the recircular loop and to make the calculation order for the large - scale ammonia synthesis system （taking the Kellogg synthesis ammonia flowsheet as an example） The fact was found that the free degrees of each unit equipment or the selected system for material equilibrium in the calculation order were 0 or ≤ 0., which means that not only could the complicated and inconvenient material and heat combination solution and the iteration - convergence of the whole system be avoided, but also the material balance could be quickly and accurately computed with sequential modular approach.
出处
《江西化工》
2006年第2期83-85,共3页
Jiangxi Chemical Industry
关键词
合成氨
系统分析
系统模拟
切割
序贯模块
synthesis ammonia system analysis system simulation cutting sequential modular
