کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6465713 | 1422956 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of modified QFS region by a new generalized criterion for isoperibolic homogeneous semi-batch reactions
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Identification of modified QFS region by a new generalized criterion for isoperibolic homogeneous semi-batch reactions Identification of modified QFS region by a new generalized criterion for isoperibolic homogeneous semi-batch reactions](/preview/png/6465713.png)
چکیده انگلیسی
Traditional safe-productive criteria for isoperibolic homogeneous semi-batch processes fail to consider the thermal stability of reacting system in case of cooling failure. In this paper, a new variable, normalized objective sensitivity S(θMTSR)Φ, is defined. The variation of the dimensionless MTSR0 and SθMTSRÏj is studied based on multiple operational parameters. A new generalized criterion is proposed, which could predict when the course of reaction enters the QFS region and simultaneously does not enter the region where the reacting system is thermally unstable. The lowest threshold corresponds to the condition where S(θMTSR)Φ exhibits a sharp maximum value, and the highest threshold corresponds to the condition where MTSR is equivalent to MAT. This new safe-productive region is defined as a modified QFS region. Comparison between this new generalized criterion and other criteria is carried out and a good agreement is found. Based on the new generalized criterion, a general optimization algorithm for determining the modified QFS region, especially the optimized dosing time and jacket temperature in this region, is developed and used with limited kinetic information.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 322, 15 August 2017, Pages 488-497
Journal: Chemical Engineering Journal - Volume 322, 15 August 2017, Pages 488-497
نویسندگان
Wenshuai Bai, Lin Hao, Yaozhou Sun, Bo Zhang, Jiaxing Zhu, Hongyuan Wei,