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Fluidization Characteristics of Sand and Chopped Switchgrass-Sand Mixtures

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  036084,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.13911) @2003
Authors:   Krushna N. Patil, Timothy J. Bowser, Danielle D. Bellmer, Raymond L. Huhnke
Keywords:   Fluidization, switchgrass, sand, fluidized bed, gasification

Fluidization of sand and chopped switchgrass-sand mixtures of different particle sizes and bulk densities was studied in this work. Experiments were performed in a 250 mm ID fluidized bed column to determine velocities for minimum fluidization (Umf) and complete fluidization (Ucf). The percentages of chopped switch grass in the mixtures studied were 1, 2, 2.9, 4.8, 6.5 and 8.3% by weight. Problems and fluidization characteristics observed during the laboratory tests were discussed.

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