The study of solid circulation rate in a compartmented fluidized bed gasifier (CFBG)
MetadataShow full item record
Biomass waste has been abundantly available in Malaysia since the booming of palm oil industry. In order to tackle this issue, gasification is seen a promising technology to convert waste into energy. In view of the heat requirement for endothermic gasification reaction as well as the complex design and operation of multiple fluidized beds, compartmented fluidized bed gasifier (CFBG) with the combustor and the gasifier as separate compartments is proposed. As such, solid circulation rate (SCR) is one of the essential parameters for steady gasification and combustion to be realized in their respective compartments. Experimental and numerical studies (CFD) on the effect of static bed height, main bed aeration, riser aeration and v-valve aeration on SCR have been conducted in a cold- flow CFBG model with only river sand as the fluidizing medium. At lower operating range, the numerical simulations under-predict the SCR as compared to that of the experimental results. Also, it predicts slightly different trends over the range. On the other hand, at higher operating range, the numerical simulations are able to capture those trends as observed in the experimental results at the lower operating range. Overall, the numerical results compare reasonably well with that of the experimental works.
Showing items related by title, author, creator and subject.
Gorin, Alexander; Chok, Vui; Wee, Siaw; Chua, Han (2008)The paper represents an extensive study of hydrodynamic cahracteristics of a fluidized bed in a pilot-plant-scale fluidized bed reactor designed for syngas production and power generation from biomass as a source of ...
Numerical and experimental study of hydrodynamics in a compartmented fluidized bed oil palm shell biomass gasifierWee, Siaw Khur (2011)Numerical and experimental studies of hydrodynamic parameters of fluidized beds formed by either a single component system or a binary mixture in a pilot plant scale model of a Compartmented Fluidized Bed Gasifier (CFBG) ...
Wee, Siaw; Chok, Vui; Gorin, Alexander; Chua, Han (2008)A pilot scale (0.5 tones/day) air-blown compartmented fluidized bed gasifier (CFBG) consisting of two compartments, the combustor and the gasifier, operating at bubbling fluidized mode has been constructed for medium ...