کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9623701 | 456567 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Liquid mixing and gas-liquid mass transfer in a three-phase inverse turbulent bed reactor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Liquid mixing and gas-liquid mass transfer in a three-phase inverse turbulent bed reactor Liquid mixing and gas-liquid mass transfer in a three-phase inverse turbulent bed reactor](/preview/png/9623701.png)
چکیده انگلیسی
In this research work, hydrodynamic characteristics and gas-liquid mass transfer in a laboratory scale inverse turbulent bed reactor were studied. In order to characterize internal flow in the reactor, the residence time distribution (RTD) was obtained by the stimulus-response technique using potassium chloride as a tracer. Different solid hold-up (0-0.37) and air superficial velocity (2.7-6.5 mm sâ1) values were assayed in RTD experiments. The parameters that characterize the RTD curve, mean residence time and variance were independent of the solid hold-up, thus the solid particle concentration did not influence liquid mixing in the reactor. The hydrodynamic of the inverse turbulent bed was well represented by a model that considers the reactor as two-mixed tank of different volumes in series. The value of the volumetric gas-liquid mass transfer coefficient (kLa) was independent of the solid hold-up. This result enhances a previously suggested hypothesis, which considers that the solid and liquid form a pseudo-fluid in the inverse turbulent bed reactor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 114, Issues 1â3, 15 November 2005, Pages 1-7
Journal: Chemical Engineering Journal - Volume 114, Issues 1â3, 15 November 2005, Pages 1-7
نویسندگان
Omar Sánchez, Sébastien Michaud, Renaud Escudié, Jean-Philippe Delgenès, Nicolas Bernet,