Fluidized bed
A Linear Stability Analysis of a Homogeneous Fluidized Bed
... of fluidized beds in narrow pipes ...gas-fluidized bed the distur- bances increase until a full bubble develops, whereas there is no intensification of the disturbances in a liquid-fluidized ...
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Mathematical Modeling of Drying Characteristics of Chilies in a Rotating Fluidized Bed Technique
... Rotating Fluidized Bed (RFB) dryer is a new drying technology for several moist ...the bed container, the centrifugal force field takes place and causes an enhancement in heat and mass transfer ...
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Drying of polymer powder in fluidized bed: Modeling of multizone dryer
... of fluidized bed using water low- pressure steam (LPS, 2 bar), supplying in heat radiators; 2 – by heating of fluid (N 2 ) in heat exchangers using ...
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DEVELOPMENT AND EVALUATION OF A LOW-DENSITY BIOMASS FEEDING SYSTEM FOR FLUIDIZED BED GASIFIERS
... The feeding system (Figure 2) was designed for feeding low density biomass materials into a fluidized bed gasification system. It consists of: (a) a frame, which is used to raise the hopper above the auger, ...
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Evaluation of Anaerobic Fluidized Bed Reactor for treating Sugar mill effluent - a Case Study
... Anaerobic Fluidized Bed Reactor (AFBR) is an evolving process that requires waste specific design methodologies based on kinetics of the specific ...
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CARBOHYDRATE ENHANCED BIOFILM GROWTH IN ANAEROBIC FLUIDIZED BED REACTOR TREATING SYNTHETIC WASTEWATER
... Biofilm dynamics in anaerobic fluidized bed reactor was studied since start-up during a 600-day operation time. Specific methanogenic activity tests revealed gas production by the anaerobic biomass since 30 ...
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Characterization of ash from combustion of rice husk in a fluidized bed reactor.
... A FLUIDIZED BED ...atmospheric fluidized bed reactor was ...fixed bed considering external sources of energy and high reaction times were ...
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A STUDY ON COAL BLENDING FOR REDUCING NOx AND N2 O LEVELS DURING FLUIDIZED BED COMBUSTION
... a fluidized bed reactor with 80 mm of internal diameter and 500 mm ...K/s. Fluidized bed systems usually operate over a temperature range of 1073 to 1123 K and coal particles entering the ...
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EFFECT OF FLUIDIZED-BED PROCESS VARIABLES ON CONTROLLED-RELEASE OF NITROGEN AND COATING
... Urea coating has been accomplished in a rotary fluidized-bed coater using modified starch-based biopolymer as a coating material. The effect of different process conditions is studied on release ...
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Application of a Twin-plane Electrical Capacitance Tomography Sensor for Characterising Bubble Behaviour in a Gas-solids Fluidized Bed
... Abstract —Fluidized beds have been used extensively in general chemical engineering applications. However, due to their complex hydrodynamic characteristics, conventional measurement techniques are insufficient to ...
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Fast Pyrolysis Behavior of Banagrass as a Function of Temperature and Volatiles Residence Time in a Fluidized Bed Reactor.
... fixed bed reactors produce more char and less oil than fluidized bed designs and there can be significant variations to product yield given different fluidized bed designs and due to ...
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The identification of unusual microscopic features in coal and their derived chars: Influence on coal fluidized bed combustion
... fluidized bed conditions, the authors (Valentim et al., 2006-this volume) found that the coals used presented, in different amounts, “unusual” microfeatures such as folds, fractures, oxidation, ...
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Análise de mínima fluidização de leito fluidizado em 3D via CFD para o material orgânico café/ Minimum fluidization analysis of 3D fluidized bed through CFD for coffee organic material
... HAMZEHEI, M. CFD Modeling and Simulation of Hydrodynamics in a Fluidized Bed Dryer with Experimental Validation. Mechanical Engineering, v. 2011, n. 2011, p. 1–8, 2014. IQBAL, N.; RAUH, C.; DELGADO, A. ...
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Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
... A methodology of identification and characterization of coherent structures mostly known as clusters is applied to hydrodynamic results of numerical simulation generated for the riser of a circulating fluidized bed. ...
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Braz. J. Chem. Eng. vol.26 número2
... the fluidized bed is characterized by high heat ...the fluidized bed for particles of siliceous sand of differing ...the fluidized bed has been analyzed through the experimental ...
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Drying of the aqueous extract of acorn Quercus robur in a spout-fluid bed
... Abstract: The results of the chemical investigations of variously treated acorn samples are presented in this paper with the aim of obtaining data on the amount of nutritious components and biologically active ...
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Polímeros vol.12 número3
... The model developed by Fernandes and Lona (1999, 2001) for fluidized bed, and used in this work, is a three phase heterogeneous model. This model dif- fers from the two phase model (bubble and emulsion) by ...
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Braz. J. Chem. Eng. vol.28 número4
... laboratory fluidized bed reactor operating at 360°C with a catalyst to polymer feed ratio of 2:1 and at 450°C with a catalyst to polymer feed ratio of 6:1 under atmospheric pressure using ZSM-5, US-Y, ASA, ...
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REPOSITORIO INSTITUCIONAL DA UFOP: Estudo da redução de sulfato em reatores contínuos utilizando gilcerol.
... Reactor hydrodynamics is important for sulfidogenesis because sulfate reduction bacteria (SRB) do not granulate easily. In this work, the sulfate reduction performance of an Upflow Anaerobic Sludge Blank (UASB) reactor ...
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Braz. J. Chem. Eng. vol.31 número3
... Some studies using cassava wastewater as sub- strate have already been conducted, and their results indicate that its use in hydrogen production is eco- nomically viable (Luo et al., 2010a; Cappelletti et al., 2011; ...
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