کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
622646 882685 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correlating Gas-Liquid Mass Transfer in a Stirred-Tank Reactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Correlating Gas-Liquid Mass Transfer in a Stirred-Tank Reactor
چکیده انگلیسی

A correlation is developed for the volumetric gas–liquid mass transfer coefficient (kLa) in stirred-tank reactors (STRs) using results from the literature. The volumetric mass transfer coefficient is correlated on the basis of the relative dispersion parameter (N/NCD) for similar impeller hydrodynamics and operating regimes. Using a bench-top STR of diameter T= 0.211 m, gas–liquid mass transfer data are also obtained and found to follow the proposed correlation when the appropriate hydrodynamic conditions are satisfied. A STR scale-up technique from bench-scale (T= 0.211m and D/T= 0.35) to industrial-scale (up to T= 2.7 m) is proposed using a normalized hydrodynamic flow regime map and shown to be useful in understanding the range of operational conditions for the successful scale-up of STRs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Research and Design - Volume 84, Issue 3, March 2006, Pages 239-245