首页 | 本学科首页   官方微博 | 高级检索  
     


Modeling and simulation of a nitric acid recovery process
Authors:Sea Cheon Oh  Young Se Oh  Yeong-Koo Yeo
Affiliation:(1) Dept. of Chem. Eng., Hanyang University, 133-791 Seoul, Korea;(2) Tech. Res. and Dev. Center, Hanil Synthetic Fiber Co. Ltd., 630-791 Masan, Korea
Abstract:A nitric acid recovery process using composite distillation columns was modeled and simulated. The composite distillation columns consist of a multistage vacuum tower and an atmospheric pressure tower half of which consists of packed bed. The vacuum tower and the atmospheric pressure tower were modeled by using equilibrium stage method and non-equilibrium stage method respectively. The required thermodynamic properties for nitric acid solution were obtained from correlations based on experimental data. Results of simulations showed good agreement with actual plant data. From the results of simulations it was found that the upper half of the atmospheric pressure column and the vacuum column, consisting of plate column, can be modeled using equilibrium model, but the lower half of the atmospheric pressure column, which are packed parts, can be modeled effectively using non-equilibrium model. The non-equilibrium model developed in the present study showed good agreement with actual operaton data.
Keywords:Nitric Acid  Multistage Distillation Column  Simulation  Equilibrium Model  Non-equilibrium Model
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号