Gas-solids intenaction in the zone of a fluidized-bed
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Gas-solids intenaction in the zone of a fluidized-bed phase I ... by Donald J Kirwan

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Published by Energy Research and Development Administration, for sale by the National Technical Information Service in [Washington], Springfield, Va .
Written in English

Subjects:

  • Fluidized-bed furnaces.,
  • Fluidization.

Book details:

Edition Notes

StatementDonald J. Kirwan, Sterling Vines.
ContributionsVines, Sterling, joint author., United States. Energy Research and Development Administration
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL22440419M

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Gas–Solid Hydrodynamics in a Bubbling Fluidized-Bed Reactor: E ects of Air Distributor, Viscous and Drag Models was developed to determine the fluid-particle interaction during fast pyrolysis inside a fluidized bed reactor with a gh1 capacity [16]. The model was capable of calculating the heat, mass and except for the zone near Author: Ramin Khezri, Wan Azlina Wan Ab Karim Ghani, Salman Masoudi Soltani, Dayang Radiah Awang Biak, Robia. Principles of Gas-Solid Flows - by Liang-Shih Fan January Author: Liang-Shih Fan, Chao Zhu. The axial pressure drop profile and the radial solids distribution were measured in a circulating fluidized bed for evaluating the effects of return gas-solids stream position on the riser flow. Due to the high exhaust gas temperatures and injection of water, steam will be present in the fluidized bed reactor exhaust gas. To separate this steam from the air prior to disposal in the gas manifold, stream CS is connected to a detention tank (flash tank) (T).

  Temperature and pressure have little effect on the gas and solids mixing behavior. A small quantity of fine particles is noted to drastically affect the gas and solids mixing behavior in the turbulent fluidized bed. The axial and radial dispersion coefficients of gas and solids reach their maximum when the fines content is about 15%.Cited by: Circulating-turbulent fluidized bed (C-TFB) was characterized by high solid holdup, homogenous axial and radial flow structure, no net downflow of solids and high contact efficiency in this study. These flow dynamic properties were mainly represented by solid holdup profiles, the identification of flow regime and cluster dynamics in a riser, – mm in diameter and m in by: 8. Fig. 1 is a schematic flow sheet of the experimental apparatus. The two-reaction-zone (TRZ) reactor was located at the bottom and had an ID of mm and height of 2 m. Immediately above the TRZ reactor was a riser that had an ID of 80 mm and height of m; the riser had high superficial gas velocities and circulated the : Shuaishuai Zhou, Chunxi Lu, Mengxi Liu. drop, characteristic of a fluidized bed reactor, baffles are the most suitable as reactor internals. Over-cashier, et al'2 reported that the use of horizontal baffles narrows the retention time spectrum of gas and solids and permits concurrent or counter-current flow while not seriously reducing gas solids throughput or solids hold by: 3.

  A FLUIDIZED bed is sometimes used as a means of carrying out a chemical reaction between a gas and solid particles. In gas-fluidized beds, ‘bubbles’ form and Cited by: 6.   Gas/Solid Flow Patterns in a cm Diameter Circulating Fluidized Bed. Recirculation of Particles in Fast Fluidized Risers. Solid Distribution and Movement in Circulating Fluidized Beds. Measurement of Radial & Axial Solids Flux Variations in the Riser of a Circulating Fluidized Edition: 1. drying granular solids in a fluidized bed proefschri ft ter verkrijging van de graad van doctor in de technische wetenschappen aan de technische hogeschool eindhoven, op gezag van de rector magnificus, prof. dr. p. vander leeden, voor een commissie aangewezen door het college van dekanen, in het openbaar te verdedigen op Cited by:   Particles are flowing upwords mainly through the centre region of the pipe, which is different from that in the conventional pipes. Particles are .