کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1209850 965355 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental implementation of automatic ‘cycle to cycle’ control to a nonlinear chiral simulated moving bed separation
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Experimental implementation of automatic ‘cycle to cycle’ control to a nonlinear chiral simulated moving bed separation
چکیده انگلیسی

In order to better exploit the economic potential of the simulated moving bed chromatography a ‘cycle to cycle’ controller which only requires the information about the linear adsorption behavior and the overall average porosity of the columns has been proposed. Recently, an automated on-line HPLC monitoring system which determines the concentrations in the two product streams averaged over one cycle, and returns them as feedback information to the controller was implemented. The new system allows for an accurate determination of the average concentration of the product streams even if the plant is operated at high concentrations. This paper presents the experimental implementation of the ‘cycle to cycle’ control concept to the separation of guaifenesin enantiomers under nonlinear chromatographic conditions, i.e. at high feed concentrations. Different case studies have been carried out to challenge the controller under realistic operation conditions, e.g. introducing pump disturbances and changing the feed concentration during the operation. The experimental results clearly demonstrate that the controller can indeed deliver the specified purities and improve the process performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1217, Issue 13, 26 March 2010, Pages 2013–2021
نویسندگان
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