کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
153269 456523 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prevention of flooding in a countercurrent trickle-bed reactor using additional void space
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Prevention of flooding in a countercurrent trickle-bed reactor using additional void space
چکیده انگلیسی

The influence of the configuration of additional void space (AVS) on the flooding point and the gas–liquid mass transfer coefficient (kLa) of structured packings in a countercurrent trickle-bed reactor has been investigated. Experiments have been performed with six structured packings with different AVS configurations. The experiments have been performed with air, water and 3 mm glass beads in a Perspex model system. A clear difference can be observed between continuous and discontinuous AVS configurations; only continuous AVS configurations are shifting the flooding boundaries to higher gas and liquid fluxes. The kLa of all structured packings with AVS is comparable to the kLa of a cocurrent packed bed. Flooding in structured packings is qualitatively described by identifying three types of liquid flow. These flows can be manipulated with the configuration of the AVS and therefore the flooding point can be influenced. By applying AVS, flooding can also be prevented completely without loss in mass transfer (kLa).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 138, Issues 1–3, 1 May 2008, Pages 333–340
نویسندگان
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