Periodic Pressure Fluctuation in a Gaseous Fluidized Bed
نویسندگان
چکیده
منابع مشابه
Effect of Twisted Tape Baffles on Pressure Drop, Fluctuation and Expansion Ratios in gas - Solid Fluidized Bed
In the present work an attempt has been made to study the effect of the twisted tapes as bed internals, on the performance of the gas-solid fluidized beds. Experimental investigation has been carried out in cylindrical column with and without twisted tapes. Twelve numbers of twisted tapes of three different widths with four values of the twist ratios for each width were studied at different...
متن کاملX-ray tomography of a fluidized bed Effect of pressure and fines on bubbles in a fluidized bed
Using a fast X-ray tomography setup measurements have been done on a 25 cm diameter f luidized bed of Geldart B pow^der and a 24 cm bed of Geldart A powder. The average bubble sizes have been determined over a measurement period of 60 seconds. The resolution of this setup is about 4.5 m m per pixel at a rate of 250 reconstructions per second. I t is possible to detect bubbles as small as 2.5 cm...
متن کاملRemoval of gaseous toluene using immobilized Candida tropicalis in a fluidized bed bioreactor
A pure yeast strain Candida tropicalis was immobilized on the matrix of powdered activated carbon, sodium alginate, and polyethylene glycol (PSP beads). The immobilized beads were used as fluidized material in a bioreactor to remove toluene from gaseous stream. Applied toluene loadings were 15.4 and 29.8 g/m(3) h in Step 1 and Step 2, respectively, and toluene removal was found above 95% during...
متن کاملControl of a Fluidized Bed Polyethylene Reactor
In present paper, dynamic behavior and control of a fluidized bed reactor for polyethylene production has been considered. A double active sites model for Ziegler-Natta catalysts is used for simulation of polymerization reaction. Hydrodynamic behavior of the bed is modeled using a two phase model including bubble and emulsion phases in which bubble phase has plug flow pattern with different...
متن کاملExperimental Study of Coating in a Bottom Sprayed Fluidized Bed
Several investigations have been devoted towards understanding the coating process in fluidized beds. Most of these studies focused on spraying liquid droplets over the bed. However, due to the complexity of these systems, more investigations are still required to quantify the effect of operating conditions on the coating criteria. The present work aims at fundamentally understanding and pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: KAGAKU KOGAKU RONBUNSHU
سال: 1980
ISSN: 0386-216X,1349-9203
DOI: 10.1252/kakoronbunshu.6.392