Title of article :
Cold Flow Binary Fluidization of Oil Palm Residues Mixture in a Gas-Solid Fluidized Bed System
Author/Authors :
Fauziah, M. Universiti Teknologi MARA - Faculty of Chemical Engineering, Selangor , Norazah, A.R. Universiti Teknologi MARA - Faculty of Chemical Engineering, Malaysia , Nornizar, A. Universiti Teknologi MARA - Faculty of Chemical Engineering, Selangor , Azil Bahari, A. Universiti Teknologi MARA - Faculty of Chemical Engineering, Selangor , Tajuddin, M.J. Universiti Teknologi MARA - Faculty of Mechanical Engineering, Malaysia
From page :
201
To page :
212
Abstract :
Fluidized bed gasification of biomass is a promising technology. However, significant development work is required before large-scale implementation can be realized. In this work, binary mixture fluidization of silica sand and oil palm residues were accomplished to visualize the fluidization behavior of the mixture in a cold rig. The most critical characteristics for biomass gasifier operation, the minimum (Umf) and complete (Ucf) fluidization velocity of the mixtures were determined. The mixtures were prepared by adding 70%w/w, 75%w/w, 80%w/w, 85%w/w, 90%w/w and 95%w/w of silica sand to palm kernel shell and/or palm pressed fiber. Experiments were performed in a 0.15 m diameter by 1.0 m height cylindrical column gas-solid fluidized bed system, at a constant 3 kg bed weight. The mixture was pre-mixed before being fed in to the column. The Ucf/Umf ratio was found to decrease with increasing weight percentage of palm kernel shell in the mixture while the ratio increased as the weight percentage of palm pressed fibre increased in the mixture. It was also observed that segregation was reduced when the content of silica sand was increased in the binary mixture.
Keywords :
Binary mixture , minimum fluidization velocity , complete fluidization velocity , segregation
Journal title :
Pertanika Journal of Science and Technology ( JST)
Journal title :
Pertanika Journal of Science and Technology ( JST)
Record number :
2577194
Link To Document :
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