Non-linear model predictive control of the hashimoto simulated moving bed process
Non-linear model predictive control of the hashimoto simulated moving bed process
复制标题
桥本模拟移动床过程的非线性模型预测控制
DOI:
10.1007/978-3-540-72699-9_39
复制
发表时间:
2007
期刊:
影响因子:
--
通讯作者:
Engell
中科院分区:
文献类型:
--
作者:
Küpper;Engell
In recent years, continuous Chromatographic processes have been established as an efficient separation technology in industry, especially when temperature sensitive components or species with similar thermodynamic properties are involved. In SMB processes, a counter-current movement of the liquid and the solid phases is achieved by periodically switching the inlet and the outlet ports in a closed loop of Chromatographic columns. The integration of reaction and separation in one single plant is a promising approach to overcome chemical or thermodynamic equilibria and to increase process efficiency. Reactive Chromatographie SMB processes in which the columns are packed with catalyst and adsorbent have been proposed and demonstrated successfully. However, a full integration often is not efficient because in the columns in the separating zones, the catalyst is not used or even counterproductive. By placing reactors between the separation columns at specific positions around the feed port, a more efficient process, the Hashimoto SMB process, is established. In this contribution, a non-linear predictive control concept for the Hashimoto SMB process is presented. The controller computes optimal control variables (flow rates and the switching time) to optimize an economic objective over a moving horizon. The purity requirements of the product streams are implemented as constraints and not as controlled variables. The optimization-based controller is combined with a scheme to estimate selected model parameters in order to reduce the influence of the inevitable model errors. Simulative results are presented for the example of the racemization of Tröger’s base.
登录
查看更多内容
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
A. Küpper;S. Engell
通讯作者:
S. Engell
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
Gültekin Erdem;Stefanie Abel;M. Morari;M. Mazzotti;M. Morbidelli;Jay H. Lee
通讯作者:
Jay H. Lee
DOI:
10.1016/j.compchemeng.2005.02.034
发表时间:
2005
期刊:
Comput. Chem. Eng.
影响因子:
--
作者:
Engeil
通讯作者:
Engeil
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
T. Gu
通讯作者:
T. Gu
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
T. Borren;J. Fricke;H. Schmidt
通讯作者:
H. Schmidt