[1]王维德,林阿河,叶美玲,等.精馏过程多定态现象及其分析[J].华侨大学学报(自然科学版),2003,24(4):405-410.[doi:10.3969/j.issn.1000-5013.2003.04.014]
　Wang Weide,Lin Ahe,Ye Meiling,et al.Phenomenon of Multiple Steady-State during Process of Rectification and Its Analysis[J].Journal of Huaqiao University(Natural Science),2003,24(4):405-410.[doi:10.3969/j.issn.1000-5013.2003.04.014]
点击复制

精馏过程多定态现象及其分析()
分享到：

《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第24卷
期数:
2003年第4期
页码:
405-410
栏目:
出版日期:
2003-10-20

文章信息/Info

Title:
Phenomenon of Multiple Steady-State during Process of Rectification and Its Analysis
文章编号:
1000-5013(2003)04-0405-06
作者:
王维德; 林阿河; 叶美玲; 曾明荣
华侨大学材料科学与工程学院; 华侨大学材料科学与工程学院 福建泉州362011; 福建泉州362011; 福建泉州362011
Author(s):
Wang Weide;  Lin Ahe;  Ye Meiling;  Zeng Mingrong
College of Mater. Sci. & Eng., Huaqiao Univ., 362011, Quanzhou, China
关键词:
精馏;  传质过程;  多定态;  物料衡算;  塔板
Keywords:
rectification;  process of mass transfer;  multiple steady state;  material balance;  tray
分类号:
TQ028
DOI:
10.3969/j.issn.1000-5013.2003.04.014
文献标志码:
A
摘要:
精馏传质过程存在多定态现象,而产生多定态的原因有多种 .文中针对流量之间非线性转换产生的多定态,进行研究和分析 .当操作处于多定态区域时,塔内各塔板的温度与组成等参数的分布,以及塔顶和塔底产品浓度等参数都存在多种可能的数值 .对于一个处于多定态区域操作的工业塔,当某些操作参数产生波动或受外界微扰时,塔内各塔板的温度与组成等参数可能由正常的分布向不正常的分布突跃迁移,使塔的正常操作遭到破坏 .对多定态的实验结果和产生原因进行分析,结果表明理论上在一定条件下存在多定态的可能性,不同定态下的组成参数均能满足物料衡算和塔的分离能力检验
Abstract:
During processes of rectification transfer and mass transfer, there exists phenomenon of multiple steady state, which had been discovered and studied just in the recent decades. There are different types of multiple steady states, the multiple steady states caused by nonlinear conversion of flow rates is studied and analysed here. When the operation is in the zone of multiple steady state, the distribution of such parameters as temperature and composition at each tray within rectifying column as well as such parameters as product concentration at top and bottom of the column exhibit various possible values. With regard to a column where the operation is in a zone of multiple steady state, such parameters as temperature and composition at each tray within the column may jump abruptly from normal to abnormal distribution and thus the normal operation within the column may be destroyed whenever certain operating perameter fluctuates or encounters external perturbation. In this paper, an analysis is made on the experimental results and the contributing factors of multiple steady state. The analysis shows theoretically the possibility of the existence of multiple steady state under definite condition, it shows also that the composition parameters are able to meet the material balance and the test of separating power of the column.

参考文献/References:

[1] Jacobsen E W, Skogestad S. Multiple steady states in ideal two-product distillation [J]. AICHE Journal, 1991(4):499-511.
[2] Kienle M, Groebel M, Gilles E D. Multiple steady states in binary distillation: Theoretical and experimental results [J]. Chemical Engineering Science, 1995(5):2691-2703.doi:10.1016/0009-2509(95)00113-J.
[3] Bekiaris N, Thomas E, Morari M. Multiple steady states in distillation: Fffect of VL(L)E inaccuracies [J]. AICHE Journal, 2000, (46):955-979.doi:10.1002/aic.690460510.
[4] Mohl K D, Kinel A, Gilles E D. Steady-state multiplicities in reactive distillation columns for the production of fuel ethers MTBE and TAM:Theoretical analysis and experimental verification [J]. Chemical Engineering Science, 1999(7):1029-1043.doi:10.1016/S0009-2509(98)00327-3.
[5] Hauan S, Hertzberg T, Lien K M. Why methyl tert-butyl ether production by reactive distillation may yield multiple solutions [J]. Industrial and Engineering Chemistry Research, 1995(3):987-991.
[6] Jacobs R, Krishna R. Multiple solutions in reactive distillation for methyl tert-butyl ether synthesis [J]. Industrial and Engineering Chemistry Research, 1993(8):1706-1709.
[7] Guttinger T E, Dorn C, Morari M. Experimental study of multiple steady states in homogeneous azeotropic distillation [J]. Industrial and Engineering Chemistry Research, 1997, (3):794-802.doi:10.1021/ie960522g.
[8] Muller D, Marquardt W. Experimental verification of multiple steady states in hetergeneous azeotropic distillation [J]. Industrial and Engineering Chemistry Research, 1997, (12):5410-5418.doi:10.1021/ie970283c.
[9] Higler A P, Taylor R, Krishna R. Nonequilibrium modeling of reactive distillation: multiple steady states in MTBE synthesis [J]. Chemical Engineering Science, 1999, (10):1389-1395.doi:10.1016/S0009-2509(99)00056-1.
[10] 谭天恩, 麦本熙, 丁惠华. 化工原理 [M]. 北京:化学工业出版社, 1998.156-157.

相似文献/References:

[1]王维德.多组分物系传质过程扩散系数及其计算[J].华侨大学学报(自然科学版),2002,23(2):180.[doi:10.3969/j.issn.1000-5013.2002.02.015]
　Wang Weide.Diffusivity of Multicomponent Mixture during the Process of Mass Transfer and Its Calculation[J].Journal of Huaqiao University(Natural Science),2002,23(4):180.[doi:10.3969/j.issn.1000-5013.2002.02.015]
[2]王维德,黄颖芬,晋正茂,等.进料热状况对精馏能耗影响[J].华侨大学学报(自然科学版),2008,29(2):260.[doi:10.11830/ISSN.1000-5013.2008.02.0260]
　WANG Wei-de,HUANG Ying-fen,JIN Zheng-mao,et al.Effect of Thermal Conditions of Feed on Energy Consumption of Distillation[J].Journal of Huaqiao University(Natural Science),2008,29(4):260.[doi:10.11830/ISSN.1000-5013.2008.02.0260]

备注/Memo

备注/Memo:
国务院侨务办公室科研基金资助项目(01QZR06)
更新日期/Last Update: 2014-03-23