The direct (with air) gasification process of biomass in bubbling fluidized bed reactor was simulated using Aspen Plus®. divided three parts: the pyrolysis zone, combustion zone and reduction zone. simulation supported by an external MS-Excel® subroutine to define yield composition main components, namely, char, gas tar. Whereas processes were a kinetic model. These models calibrated thereafter...

Fluidized bed processing is a relatively novel method for coating metal substrates. A detailed study was carried out into surface property and in micro-structure changes induced by fluidized bed processing. In particular, fluidized bed processing of AA 6082 T6 aluminum alloy components using alumina Al2O3 powder was investigated. Firstly, the build up of Al2O3 films was studied and characterize...

An experimental study is conducted to determine the effect of different types of nanoparticles on the gas fluidization characteristics of nanoparticle agglomerates. Taking advantage of the extremely high porosity of the bed, optical techniques are used to visualize the flow behavior, as well as to measure the sizes of the fluidized nanoparticle agglomerates at the bed surface. Upon fluidizing 1...

The aim of this study was to examine the physico-chemical and phase characteristics ash obtained in process combustion Polish poultry manure a laboratory reactor with bubbling fluidized bed. Three experiments, differing grain size morphology raw material, method its dosing type bed, were carried out. contents main chemical components trace elements samples determined using WDXRF, composition ex...

The mechanism of vibration energy transfer in a vibrating fluidized bed (VFB) is reported in this paper. A series of sensors was employed to simultaneously detect pressure wave propagation signals at different positions at various heights in the fluidized bed. The mechanism of vibration energy transfer in an VFB is found by wave propagation. The pressure wave was produced from a vibrating base ...